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BD9267KUT product structure silicon monolithic integrated circuit this product is not designed protection against rad ioactive rays 1/28 tsz02201-0f1f0c100050-1- 2 ? 2012 rohm co., ltd. all rights reserved. 03.aug.2012 rev.001 www.rohm.com tsz22111 ? 14 ? 001 datasheet led drivers for lcd backlights white led diver for backlight of medium /large-sized lcds BD9267KUT general description BD9267KUT is a white led diver used on backlight of medium/large-sized lcds. this ic can achieve dimming function by spi control. and through the spi correspondence, it can set the on/off of each switc h, analog dimming and etc. the signals of pwm dimming can set the frequency, on time and delay of pwm by inputting the external signals to the register. BD9267KUT has equipped several protection functio ns to deal with the abnormal states, including led open protection, led short protection, external current setting resistance short protection, external mos transistor short protection, etc. so it can be used i n a wide output voltage range and various load conditio ns. key specifications vcc power supply range 9.0v 35.0v dvdd power supply range 3.0v 3.6v clk frequency setting range 100 10000khz operating circuit current range 2.4ma(typ.) operating temperature range -40 +85 applications tv pc display other lcd backlight features 16-ch constant current driver (external fet(nmos is equipped.) led voltage can be set externally. pwm dimming and analogue dimming can be controlled by spi. led abnormal operation detection circuit (open protection/ short protection) is equipped. led short protection detection voltage is adjustable (lsp terminal) led short protection detection ch fail indication function is equipped by err_det terminal. 3 lines serial interface package: tqfp64u package w(typ.) d(typ.) h(max.) tqfp64u 9.00mm 9.00mm 1.20mm pin pitch 0.4mm typical application circuit figure 1. tqfp64u figure 2. typical application circuit
datasheet 2/28 BD9267KUT tsz02201-0f1f0c100050-1- 2 ? 2012 rohm co., ltd. all rights reserved. 03.aug.2012 rev.001 www.rohm.com tsz22111 ? 15 ? 001 absolute maximum ratings ta=25 parameter symbol ratings unit power supply voltage vcc 36 v power supply voltage at digital part dvdd 4.5 v stb terminal voltage vstb vcc v d1 16 terminal voltage vd1 vd16 40 v err_det terminal voltage verr_det vcc v s1 s16, g1 g16, vref5v, lsp, comp1, comp2 terminal voltage vs1 s16, vg1 vg16,vref5v,vlsp, vcomp1,vcomp2 7 v cs, clk, di, do, vsync, hsync terminal voltage vcs,vclk,vdi,vdo,vvsync,vhsync 4.5 v power dissipation pd 750 *1 mw operating temperature range topr -40 +85 storage temperature range tstg -55 +150 junction temperature tjmax 150 *1 when ta = 25c or higher, power dissipation is d own with 6.0mw/c (when a 70 mm x 70 mm x 16 mm 4-l ayer glass epoxy board is mounted). operation range ta=25 parameter symbol limits unit power source voltage vcc 9.0 35.0 v power supply voltage at digital part dvdd 3.0 3.6 v clk oscillation frequency setting range clk 100 10000 khz vsync input oscillation frequency range vsync 80 1000 hz lsp terminal input voltage vlsp 0.8 3.0 v the operating ranges above are acquired by evaluati ng the ic separately. please take care when set the ic in applications. block diagram package outline drawing (unit : mm) tqfp64u 0.08 0.1 0.1 1.0 0.1 1.2max. 0.5 7.0 0.2 9.0 0.3 9.0 0.3 7.0 0.2 64 49 1 16 17 32 33 48 0.125 0.1 0.15 0.1 0.4 figure 3. pin configuration figure 4. marking diagram lot no. d9267kut 1 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 23 45 6 7 8 9 10 11 12 13 14 15 16 g1 d1 17 s1 d2 s2 g3 d3 s3 g4 d4 s4 g5 d5 s5 g6 d6 s6 g7 d7 s7 g8 d8 s8 s9 d9 g9 s10 d10 g10 s11 d11 g11 s12 d12 g12 s13 d13 g13 s14 d14 g14 s15 d15 g15 s16 d16 g16 vref5v lsp vcc stb gnd comp2 comp1 dgnd cs clk di do vsync hsync err_det dvdd BD9267KUT g2
datasheet 3/28 BD9267KUT tsz02201-0f1f0c100050-1- 2 ? 2012 rohm co., ltd. all rights reserved. 03.aug.2012 rev.001 www.rohm.com tsz22111 ? 15 ? 001 electrical characteristics (unless otherwise specifi ed, ta = 25c, vcc = 12v, stb=3v) item symbol standard value unit condition minimum standard maximum whole device operating circuit current icc 2.4 5.0 ma led1-16 off stand-by circuit current ist 200 500 a stb=0v vref5v block vref5v output voltage vref5 4.95 5.00 5.05 v io=0ma vref5v maximum output current iref5 15 - ma error amplifier block comp1,comp2 terminal sink current icompsink 300 - - a vcomp=0.5v led control voltage vled 270 300 330 mv uvlo block operation power source voltage(vcc) vuvlo_vcc 6.0 7.0 8.0 v vcc=sweep up hysteresis voltage vcc vuhys_vcc 150 300 600 mv vcc=sweep down led driver block led terminal current accuracy S iled -1.5 - 1.5 % iled=100ma open detection voltage vopen 0.05 0.10 0.15 v vd=sweep down short detection voltage vshort 4.5 5.0 5.5 v vd=sweep up upper resistance of divided lsp terminal resistance ruplsp 1000 - - k ? lsp=0v lower resistance of divided lsp terminal resistance rdownlsp 250 - - k ? lsp=3v error detection of current detection resistance vressh 0.10 0.15 0.20 v stb block stb terminal high voltage stbh 2.0 - vcc v stb terminal low voltage stbl -0.3 - 0.8 v stb terminal pull down resistance ren 600 1000 1800 k ? vin=3v( stb ) fail block err_det terminal on resistance rfail 55 110 220 ? ierr_det=5ma logic input (cs, clk, di, hsync, vsync) input high voltage vinh 0.7 dvdd - dvdd +0.3 v input low voltage vinl -0.3 - 0.3 dvdd v input inflow current iin1 -5 0 5 a vin=3.3v logic output (do) output high voltage vouth dvdd -0.6 dvdd -0.3 - v iol=-1ma output low voltage voutl - 0.19 0.60 v iol=1ma
datasheet 4/28 BD9267KUT tsz02201-0f1f0c100050-1- 2 ? 2012 rohm co., ltd. all rights reserved. 03.aug.2012 rev.001 www.rohm.com tsz22111 ? 15 ? 001 terminal no, name, and function no. terminal function no. terminal function no. terminal function no. terminal function 1 g1 ch1 nmos gate terminal 17 d6 ch6 nmos drain terminal 33 g11 ch11 nmos gate terminal 49 vref5v 5v regulator output terminal 2 d1 ch1 nmos drain terminal 18 s6 ch6 nmos source terminal 34 s12 ch12 nmos source terminal 50 lsp short detection setting terminal 3 s1 ch1 nmos source terminal 19 g7 ch7 nmos gate terminal 35 d12 ch12 nmos drain terminal 51 vcc power source terminal 4 g2 ch2 nmos gate terminal 20 d7 ch7 nmos drain terminal 36 g12 ch12 nmos gate terminal 52 stb enable terminal 5 d2 ch2 nmos drain terminal 21 s7 ch7 nmos source terminal 37 s13 ch13 nmos source terminal 53 gnd gnd terminal 6 s2 ch2 nmos source terminal 22 g8 ch8 nmos gate terminal 38 d13 ch13 nmos drain terminal 54 comp2 error amp output (ch1 8) 7 g3 ch3 nmos gate terminal 23 d8 ch8 nmos drain terminal 39 g13 ch13 nmos gate terminal 55 comp1 error amp output (ch9 16) 8 d3 ch3 nmos drain terminal 24 s8 ch8 nmos source terminal 40 s14 ch14 nmos source terminal 56 dgnd digital gnd terminal 9 s3 ch3 nmos source terminal 25 s9 ch9 nmos source terminal 41 d14 ch14 nmos drain terminal 57 cs chip select terminal 10 g4 ch3 nmos gate terminal 26 d9 ch9 nmos drain terminal 42 g14 ch14 nmos gate terminal 58 clk clock input terminal 11 d4 ch4 nmos drain terminal 27 g9 ch9 nmos gate terminal 43 s15 ch15 nmos source terminal 59 di date input terminal 12 s4 ch4 nmos source terminal 28 s10 ch10 nmos source terminal 44 d15 ch15 nmos drain terminal 60 do date output terminal 13 g5 ch5 nmos gate terminal 29 d10 ch10 nmos drain terminal 45 g15 ch15 nmos gate terminal 61 vsync vsync signal terminal 14 d5 ch5 nmos drain terminal 30 g10 ch10 nmos gate terminal 46 s16 ch16 nmos source terminal 62 hsync hsync signal terminal 15 s5 ch5 nmos source terminal 31 s11 ch11 nmos source terminal 47 d16 ch16 nmos drain terminal 63 err_det abnormal detection output terminal 16 g6 ch6 nmos gate terminal 32 d11 ch11 nmos drain terminal 48 g16 ch16 nmos gate terminal 64 dvdd digital power source terminal
datasheet 5/28 BD9267KUT tsz02201-0f1f0c100050-1- 2 ? 2012 rohm co., ltd. all rights reserved. 03.aug.2012 rev.001 www.rohm.com tsz22111 ? 15 ? 001 internal equivalent circuit diagram g1 g16 d1 d16 s1 s16 vref5v lsp stb lsp vref5v 2m 500k gnd comp1, comp2 cs, clk, di do dvdd dgnd 10k cs,clk,di dgnd dvdd do gnd dvdd 50 dgnd dvdd vsync, hsync err_det err_det 50 gnd gnd gnd figure 5. pin esd type
datasheet 6/28 BD9267KUT tsz02201-0f1f0c100050-1- 2 ? 2012 rohm co., ltd. all rights reserved. 03.aug.2012 rev.001 www.rohm.com tsz22111 ? 15 ? 001 block diagram dvdd di clk dgnd gnd vcc fpga err_det ++ - fb1 fb8 open det reg spi i/f vref uvlo register dac cs short det pwm duty lsp led led short det res fb1 fb16 ms1 ms16 do control pwm1 pwm16 eamp_ref dac led_ref comp1 protect logic stb + - pwm1 ms1 + - pwm2 ms2 + - pwm16 ms16 led1_dr_moni fb1 led2_dr_moni fb2 led16_dr_moni fb16 uvlo led1_dr_moni led16_dr_moni short det mos ch1 ch2 ch16 ++ - fb9 fb16 comp2 dvdd d1 g1 s1 d2 g2 s2 d16 g16 s16 vref5v vref5v vsync (on timming) hsync (clock) figure 6-1. block diagram figure 6-2. logic block diagram 0 s cs di clk dly_ltch reg(12bit) dly counter(12bit) dty_ltch reg(12bit) dty counter(12bit) comp comp sr q pwm_ out_* edge_det vsync err_msk_cnt (6bit) rise err_msk_cnt (6bit) fall edge_det sel pwm_msk_cnt (6bit) spi do_en do en 1 sel pwm_aftr_msk q err_led_op err_led_sh err_res_sh err_mos_sh q q q err_out_* chcont_* * : 0116 led_op_det led_sh_det res_sh_det ltch ltch ltch dec led_en_0116 led_ref_0112 eamp_dac_0112 spi mos_sh_det 1/4 hsync hsynci hsync4i
datasheet 7/28 BD9267KUT tsz02201-0f1f0c100050-1- 2 ? 2012 rohm co., ltd. all rights reserved. 03.aug.2012 rev.001 www.rohm.com tsz22111 ? 15 ? 001 typical performance curves figure 7. stand-by current (ist) [a] vs. vcc[v] figure 8. operating current (icc) [ma] vs. vcc[v] (led1-16 off) figure 9. vref5v[v] vs. vcc[v] 0 50 100 150 200 250 300 350 400 9 13 17 21 25 29 33 ist [ua] vcc [v] 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 9 13 17 21 25 29 33 icc [ma] vcc [v] 4.5 4.6 4.7 4.8 4.9 5.0 5.1 5.2 5.3 5.4 5.5 9 13 17 21 25 29 33 vref5v [v] vcc [v]
datasheet 8/28 BD9267KUT tsz02201-0f1f0c100050-1- 2 ? 2012 rohm co., ltd. all rights reserved. 03.aug.2012 rev.001 www.rohm.com tsz22111 ? 15 ? 001 pin function descriptions g1-g16 1,4,7,10,13,16,19,22,27,30,33,36,39,42,45,48pin external fet gate driving terminal of led constant cu rrent driver, operating range : 0 5v. s1-s16 3,6,9,12,15,18,21,24,25,28,31,34,37,40,43,46pin connect to external fet s source terminal of led constant current driver through the operations of constant current driver, all chs of s1-s16 terminals are outputted the set voltages at addresses of 02h, 03h, and s1-s16 pr oceed the constant current operation. by monitoring the voltage of this terminal, the exte rnal resistance short detection of each ch and exter nal mos short during drain-source detection proceed. when dimming high, external resistance short detection proceeds, and output the errors. when dimming low, external mos drain-source short detection proceed s, and output the errors. d1-d16 2,5,8,11,14,17,20,23,26,29,32,35,38,41,44,47pin at output terminal of led constant current driver, dr ain of external fet is connected. by monitoring the v oltage of this terminal, led open detection and led short detection of each terminal proceed. when dimming high, if led is in short mode or open mode, error signa ls are outputted. led open protection detected voltage ??? 0.1v(typ.) led short protection detected voltage ??? 5.0v(typ.) ??? (it can be changed by setting the lsp terminal. deta ils are given in lsp pin description.) when dimming low, the abnormal state when dimming high just before continues. in other words, when dimming=high and the abnormal state is detected, th e error signal is still outputted even turned to di mming low. to prevent the mistake of detection caused by the t ime change of state, abnormal detection mask can be set at address of 04h. vref5v 49pin the vref5v pin is used to output power (5v) to the inte rnal block of the ic and serves as a main power sup ply for the internal circuit of the ic. install a ceramic capac itor as close to this pin as possible in order to s tabilize the power supply voltage. at d1 16 pin led open detection when pwm=h led short detection when pwm=h at s1 16 pin resistor short detection when pwm=h mos short detection when pwm=l are detected, then the error signals are outputted. figure 10. led protected operation
datasheet 9/28 BD9267KUT tsz02201-0f1f0c100050-1- 2 ? 2012 rohm co., ltd. all rights reserved. 03.aug.2012 rev.001 www.rohm.com tsz22111 ? 15 ? 001 r1 r2 vin lsp clsp lsp agnd agnd agnd lsp 50pin in case of outputting a voltage to lsp by using the resistor divider circuit, ref5v vcc 51pin the vcc pin is used to supply power for the ic in th e range of 9 to 35v. if the vcc pin voltage reaches 7.0v (typ.) or more, the ic will initiate operation. if it reaches 6.7v (typ.) or less, the ic will be shut down. basic ally, insert a resistor of approx. 10 ohms in resistance between the vcc pin an d the external power supply and install a ceramic c apacitor of approx. 1uf in capacitance in the vicinity of the i c. stb 52pin the stb pin is used to make setting of turning on and off the ic and allowed for use to reset the ic fro m shutdown. note: set the stb pin voltage below the vcc pin voltage . note: the ic state is switched (i.e., the ic is swi tched between on and off state) according to voltag es input in the stb pin. avoid using the stb pin between two states (0.8 to 1.8v). gnd 53pin the gnd pin is an analog circuit ground pin of the ic. set the ground pattern as close as possible to t hat of resistors connected to the s1 to s16 pins. comp1(55pin) the comp1 pin is used to feed back the state of vol tage to the external power supply in order to optim ize the power supply voltage for the led layer. positive feedback voltage is output to a pin having the lowest voltage out of the d1 to d8 pins. if the lowest voltage of the d1 to d8 pins is higher than 0.6v typical voltage, t he comp1 pin will become open-circuited. if the lowe st voltage of these pins is lower than 0.6v typical voltage, the i nternal npn transistor of the comp1 pin will turn on . the comp1 pin is intended to connect to the output voltage monito r pin of the dc/dc converter. 0 5 10 15 20 0 1 2 3 4 bsx pin led short detect voltage [v] bsx pin led short detect voltage [v] bsx pin led short detect voltage [v] bsx pin led short detect voltage [v] lsp pin voltage [v] lsp pin voltage [v] lsp pin voltage [v] lsp pin voltage [v] a pin used for setting the led short protection detec ting voltage. when lsp pin is in open state, the voltage in inward of ic is 1v typ. set it in range of 0.8v~3.0v when led is lighting, if the voltage of d1 16 pin is higher than voltage of lsp x 5 (v) default 5v the abnormal state of ic is detected because this pin has a high impedance, please connec t a capacitor about 1000pf to remove the noise basicall y. figure 11. lsp pin inter nal equivalent circuit diagram figure 12. setting for lsp figure 13. led short detect voltage [v] vs. lsp [v]
datasheet 10/28 BD9267KUT tsz02201-0f1f0c100050-1- 2 ? 2012 rohm co., ltd. all rights reserved. 03.aug.2012 rev.001 www.rohm.com tsz22111 ? 15 ? 001 comp2(54pin) the comp2 pin is used to feed back the state of volt age to the external power supply in order to optimi ze the power supply voltage for the led layer. positive feedback voltage is output to a pin having the lowest voltage out of the d9 to d16 pins. if th e lowest voltage of the d9 to d16 pins is higher than 0.6v typical volta ge, the comp2 pin will become open-circuited. if th e lowest voltage of these pins is lower than 0.6v typical voltage, the i nternal npn transistor of the comp2 pin will turn on . the comp2 pin is intended to connect to the output voltage monito r pin of the dc/dc converter. cs(57pin), clk(58pin,) di(59pin), do(60pin) these pins are used to control the ic with the cs, clk, di, and do serial interfaces. input levels are determined by the dvdd power supply of the digital block. for data inp ut format and timing, refer to the description of l ogic block to be hereinafter provided. input state input level high-level input dvdd0.7~ dvdd+0.3[v] low-level input -0.3~dvdd0.3 [v] vsync(61pin), hsync(62pin) the vsync and hsync input signals enable the pwm light modulation signal to make setting of pwm frequency , pwm on time, and pwm delay time. for data input format and timing, refer to the description of logic block to be hereinafter provided. err_det(63pin) the err_det pin is used to output an ic error detecti on signal and provides the n-mos open-drain output function. if this pin is pulled up to the dvdd voltage of the ic or else, it will be set to output high voltage for normal operation. if any error is detected, the internal nmos of the ic will be put into on state, setting the pin to output low voltage. state fail signal output normal operation open led error detection gnd level when the err_det pin is put into the gnd level, the l ed has already caused an error. in this case, readin g the registers located at addresses 05h to 0ch makes it possible to recognize what channel is in what type of error state. (for detail, refer to the description of registers to be hereinafter provided.) dgnd(56pin) the dgnd pin is a digital circuit ground pin of the ic. lay out the dgnd pin using interconnect indepe ndent of that for the gnd pin wherever possible. dvdd(64pin) the dvdd pin is used to input power in the digital b lock of the ic in the range of 3.0 to 3.6v. when th e dvdd pin voltage reaches 3.3v (typ.), the ic will start operating. in sert a ceramic capacitor of approx. 1uf in capacita nce between the dvdd and dgnd pins in the vicinity of the ic.
datasheet 11/28 BD9267KUT tsz02201-0f1f0c100050-1- 2 ? 2012 rohm co., ltd. all rights reserved. 03.aug.2012 rev.001 www.rohm.com tsz22111 ? 15 ? 001 functions of logic block serial interface block this ic is controlled with the cs, clk, di, and do serial interfaces. the following section describes data input format a nd timing. write mode ? to write 1 byte of data: ? write consecutive 32 bytes of data: addresses are automatically counted up in increments of 1 address by 8 bits after the first set value. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 d 7 d 6 d 5 d 4 d 3 d 2 d 1 d 0 low t css t dis t dih t cyc t csh t clkh t clkl cs clk di do a 3 a 4 a 5 a 6 w a 2 a 1 a 0 cs 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 a 3 a 4 a 5 a 6 w d255 a 2 a 1 a 0 d254 d253 d252 d251 d250 d249 d248 clk di 17 d7 d6 d5 d4 d3 d2 d1 d0 18 19 20 21 22 23 24 257 258 259 260 261 262 263 264 d247 d246 d245 d244 d243 d242 d241 d240 ? low ? ? low do figure 14. write mode (for 1byte) figure 15. write mode (for 32byte)
datasheet 12/28 BD9267KUT tsz02201-0f1f0c100050-1- 2 ? 2012 rohm co., ltd. all rights reserved. 03.aug.2012 rev.001 www.rohm.com tsz22111 ? 15 ? 001 read mode ac electrical characteristics: parameter symbol rating unit min. typ. max. clk cycle t cyc 100 - - ns clk high level range t clkh 35 - - ns clk low level range t clkl 35 - - ns di input setup time t dis 50 - - ns di input hold time t dih 50 - - ns cs input setup time t css 50 - - ns cs input hold time t csh 50 - - ns do output delay time t dod - - 40 ns cs clk di do 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 low t css t dis t dih t cyc t csh d 7 d 6 d 5 d 4 d 3 d 2 d 1 d 0 t dod * * * * * * * * t clkl t clkh a 3 a 4 a 5 a 6 a 2 a 1 a 0 r do_en figure 16. read mode (output load capacitance: 15pf)
datasheet 13/28 BD9267KUT tsz02201-0f1f0c100050-1- 2 ? 2012 rohm co., ltd. all rights reserved. 03.aug.2012 rev.001 www.rohm.com tsz22111 ? 15 ? 001 register map 1/3 address r/w default register name bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0 description 00h r/w ffh ledena leden[7] leden[6] leden[5] leden[4] leden[3] leden[ 2] leden[1] leden[0] c 1 to c 8 led enable 01h r/w ffh ledenb leden[15] leden[14] leden[13] leden[12] leden[11] l eden[10] leden[9] leden[8] ch9 ch16 led enable 02h r/w 66h ledrefl ledref[7] ledref [6] ledref [5] ledref[4] ledref [3 ] ledref [2] ledref[1] ledref[0] analog light modulation (low 9 bits) 03h r/w 02h ledrefm - - - - ledref[11] ledref[10] ledref [9] ledref [8] analog light modulation (high 4 bits) 04h r/w 02h maskset - - - - - - errmsk[1] errmsk[0] mask time setting 05h r 00h errledopa erlop_08 erlop_07 erlop_06 erlop_05 erlop_04 erlop_ 03 erlop_02 erlop_01 ch1 to ch8 err pin monitor (ledop) 06h r 00h errledopb erlop_16 erlop_15 erlop_14 erlop_13 erlop_12 erlop_ 11 erlop_10 erlop_09 ch9 to ch16error pin monitor (ledop) 07h r 00h errledsha erlsh_08 erlsh_07 erlsh_06 erlsh_05 erlsh_04 erlsh_ 03 erlsh_02 erlsh_01 ch1 to ch8err pin monitor (ledsh) 08h r 00h errledshb erlsh_16 erlsh_15 erlsh_14 erlsh_13 erlsh_12 erlsh_ 11 erlsh_10 erlsh_09 ch9 to ch16erro pin monitor (ledsh) 09h r 00h errressha errsh_08 errsh_07 errsh_06 errsh_05 errsh_04 errsh_ 03 errsh_02 errsh_01 ch1 to ch8err pin monitor (ressh) 0ah r 00h errreshb errsh_16 errsh_15 errsh_14 errsh_13 errsh_12 errsh_ 11 errsh_10 errsh_09 ch9 to ch16error pin monitor (ressh) 0bh r 00h errmossha ermsh_08 ermsh_07 ermsh_06 ermsh_05 ermsh_04 ermsh_03 ermsh_02 ermsh_01 ch1 to ch8err pin monitor (mossh) 0ch r 60h errmosshb ermsh_16 ermsh_15 ermsh_14 ermsh_13 ermsh_12 ermsh_11 ermsh_10 ermsh_09 ch9 to ch16error pin monitor (mossh) 0dh r/w 00h dummy dmy08 dmy07 dmy06 dmy05 dmy04 dmy03 dmy02 dmy01 dummy register 0eh r/w 60h sysconfig eamprefc eamprefb eamprefa vsyncdis mosshdis resshdis ledshdis ledopd is setting register 0fh r/w 00h vsyncreg - - - - - - - vsnc_reg vsync signal input with register 10h r/w 0ch ssmskset ssmask[7] ssmask[6] ssmask[5] ssmask[4] ssmask[3] ssmask[2] ssmask[1] ssmask[0] mask section setting for soft start 11h r/w 00h dtycnt01l dty01[7] dty01[6] dty01[5] dty01[4] dty01[3] dty01[2] dty01[1] dty01[ 0] led1 pwm on range setting (low 8 bits) 12h r/w 00h dtycnt01m - - - - dty01[11] dty01[10] dty01[9] dty01[8] led1 pwm on range setting (high 4bit) 13h r/w 00h dtycnt02l dty02[7] dty02[6] dty02[5] dty02[4] dty02[3] dty02[2] dty02[1] dty02[ 0] led2 pwm on range setting (low 8bit) 14h r/w 00h dtycnt02m - - - - dty02[11] dty02[10] dty02[9] dty02[8] led2 pwm on range setting (high 4bit) 15h r/w 00h dtycnt03l dty03[7] dty03[6] dty03[5] dty03[4] dty03[3] dty03[2] dty03[1] dty03[ 0] led3 pwm on range setting (low 8bit) 16h r/w 00h dtycnt03m - - - - dty03[11] dty03[10] dty03[9] dty03[8] led3 pwm on range setting (high 4bit) 17h r/w 00h dtycnt04l dty04[7] dty04[6] dty04[5] dty04[4] dty04[3] dty04[2] dty04[1] dty04[ 0] led4 pwm on range setting (low 8bit) 18h r/w 00h dtycnt04m - - - - dty04[11] dty04[10] dty04[9] dty04[8] led4 pwm on range setting (high 4bit) 19h r/w 00h dtycnt05l dty05[7] dty05[6] dty05[5] dty05[4] dty05[3] dty05[2] dty05[1] dty05[ 0] led5 pwm on range setting (low 8bit) 1ah r/w 00h dtycnt05m - - - - dty05[11] dty05[10] dty05[9] dty05[8] led5 pwm on range setting (high 4bit) 1bh r/w 00h dtycnt06l dty06[7] dty06[6] dty06[5] dty06[4] dty06[3] dty06[2] dty06[1] dty06[ 0] led6 pwm on range setting (low 8bit) 1ch r/w 00h dtycnt06m - - - - dty06[11] dty06[10] dty06[9] dty06[8] led6 pwm on range setting (high 4bit) 1dh r/w 00h dtycnt07l dty07[7] dty07[6] dty07[5] dty07[4] dty07[3] dty07[2] dty07[1] dty07[ 0] led7 pwm on range setting (low 8bit) 1eh r/w 00h dtycnt07m - - - - dty07[11] dty07[10] dty07[9] dty07[8] led7 pwm on range setting (high 4bit) 1fh r/w 00h dtycnt08l dty08[7] dty08[6] dty08[5] dty08[4] dty08[3] dty08[2] dty08[1] dty08[ 0] led8 pwm on range setting (low 8bit) 20h r/w 00h dtycnt08m - - - - dty08[11] dty08[10] dty08[9] dty08[8] led8 pwm on range setting (high 4bit) 21h r/w 00h dtycnt09l dty09[7] dty09[6] dty09[5] dty09[4] dty09[3] dty09[2] dty09[1] dty09[ 0] led9 pwm on range setting (low 8bit) 22h r/w 00h dtycnt09m - - - - dty09[11] dty09[10] dty09[9] dty09[8] led9 pwm on range setting (high 4bit) 23h r/w 00h dtycnt10l dty10[7] dty10[6] dty10[5] dty10[4] dty10[3] dty10[2] dty10[1] dty10[ 0] led10 pwm on range setting (low 8bit) 24h r/w 00h dtycnt10m - - - - dty10[11] dty10[10] dty10[9] dty10[8] led10 pwm on range setting (high 4bit) 25h r/w 00h dtycnt11l dty11[7] dty11[6] dty11[5] dty11[4] dty11[3] dty11[2] dty11[1] dty11[ 0] led11 pwm on range setting (low 8bit) 26h r/w 00h dtycnt11m - - - - dty11[11] dty11[10] dty11[9] dty11[8] led11 pwm on range setting (high 4bit) 27h r/w 00h dtycnt12l dty12[7] dty12[6] dty12[5] dty12[4] dty12[3] dty12[2] dty12[1] dty12[ 0] led12 pwm on range setting (low 8bit)
datasheet 14/28 BD9267KUT tsz02201-0f1f0c100050-1- 2 ? 2012 rohm co., ltd. all rights reserved. 03.aug.2012 rev.001 www.rohm.com tsz22111 ? 15 ? 001 register map 2/3 address r/w default register name bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0 description 28h r/w 00h dtycnt12m - - - - dty12[11] dty12[10] dty12[9] dty12[8] led12 pwm on range setting (high 4bit) 29h r/w 00h dtycnt13l dty13[7] dty13[6] dty13[5] dty13[4] dty13[3] dty13[2] dty13[1] dty13[ 0] led13 pwm on range setting (low 8bit) 2ah r/w 00h dtycnt13m - - - - dty13[11] dty13[10] dty13[9] dty13[8] led13 pwm on range setting (high 4bit) 2bh r/w 00h dtycnt14l dty14[7] dty14[6] dty14[5] dty14[4] dty14[3] dty14[2] dty14[1] dty14[ 0] led14 pwm on range setting (low 8bit) 2ch r/w 00h dtycnt14m - - - - dty14[11] dty14[10] dty14[9] dty14[8] led14 pwm on range setting (high 4bit) 2dh r/w 00h dtycnt15l dty15[7] dty15[6] dty15[5] dty15[4] dty15[3] dty15[2] dty15[1] dty15[0] led15 pwm on range setting (low 8bit) 2eh r/w 00h dtycnt15m - - - - dty15[11] dty15[10] dty15[9] dty15[8] led15 pwm on range setting (high 4bit) 2fh r/w 00h dtycnt16l dty16[7] dty16[6] dty16[5] dty16[4] dty16[3] dty16[2] dty16[1] dty16[0] led16 pwm on range setting (low 8bit) 30h r/w 00h dtycnt16m - - - - dty16[11] dty16[10] dty16[9] dty16[8] led16 pwm on range setting (high 4bit) 31h r/w 00h dlycnt01l dly01[7] dly01[6] dly01[5] dly01[4] dly01[3] dly01[2] dly0 1[1] dly01[0] led1 pwm delay time setting (low 8 bits) 32h r/w 00h dlycnt01m - - - - dly01[11] dly01[10] dly01[9] dly01[8] led1 pwm delay time setting (high 4 bits) 33h r/w 00h dlycnt02l dly02[7] dly02[6] dly02[5] dly02[4] dly02[3] dly02[2] dly0 2[1] dly02[0] led2 pwm delay time setting (low 8bit) 34h r/w 00h dlycnt02m - - - - dly02[11] dly02[10] dly02[9] dly02[8] led2 pwm delay time setting (high 4bit) 35h r/w 00h dlycnt03l dly03[7] dly03[6] dly03[5] dly03[4] dly03[3] dly03[2] dly0 3[1] dly03[0] led3 pwm delay time setting (low 8bit) 36h r/w 00h dlycnt03m - - - - dly03[11] dly03[10] dly03[9] dly03[8] led3 pwm delay time setting (high 4bit) 37h r/w 00h dlycnt04l dly04[7] dly04[6] dly04[5] dly04[4] dly04[3] dly04[2] dly0 4[1] dly04[0] led4 pwm delay time setting (low 8bit) 38h r/w 00h dlycnt04m - - - - dly04[11] dly04[10] dly04[9] dly04[8] led4 pwm delay time setting (high 4bit) 39h r/w 00h dlycnt05l dly05[7] dly05[6] dly05[5] dly05[4] dly05[3] dly05[2] dly0 5[1] dly05[0] led5 pwm delay time setting (low 8bit) 3ah r/w 00h dlycnt05m - - - - dly05[11] dly05[10] dly05[9] dly05[8] led5 pwm delay time setting (high 4bit) 3bh r/w 00h dlycnt06l dly06[7] dly06[6] dly06[5] dly06[4] dly06[3] dly06[2] dly0 6[1] dly06[0] led6pwm delay time setting (low 8bit) 3ch r/w 00h dlycnt06m - - - - dly06[11] dly06[10] dly06[9] dly06[8] led6 pwm delay time setting (high 4bit) 3dh r/w 00h dlycnt07l dly07[7] dly07[6] dly07[5] dly07[4] dly07[3] dly07[2] dly0 7[1] dly07[0] led7 pwm delay time setting (low 8bit) 3eh r/w 00h dlycnt07m - - - - dly07[11] dly07[10] dly07[9] dly07[8] led7 pwm delay time setting (high 4bit) 3fh r/w 00h dlycnt08l dly08[7] dly08[6] dly08[5] dly08[4] dly08[3] dly08[2] dly0 8[1] dly08[0] led8 pwm delay time setting (low 8bit) 40h r/w 00h dlycnt08m - - - - dly08[11] dly08[10] dly08[9] dly08[8] led8 pwm delay time setting (high 4bit) 41h r/w 00h dlycnt09l dly09[7] dly09[6] dly09[5] dly09[4] dly09[3] dly09[2] dly0 9[1] dly09[0] led9 pwm delay time setting (low 8bit) 42h r/w 00h dlycnt09m - - - - dly09[11] dly09[10] dly09[9] dly09[8] led9 pwm delay time setting (high 4bit) 43h r/w 00h dlycnt10l dly10[7] dly10[6] dly10[5] dly10[4] dly10[3] dly10[2] dly1 0[1] dly10[0] led10 pwm delay time setting (low 8bit) 44h r/w 00h dlycnt10m - - - - dly10[11] dly10[10] dly10[9] dly10[8] led10 pwm delay time setting (high 4bit) 45h r/w 00h dlycnt11l dly11[7] dly11[6] dly11[5] dly11[4] dly11[3] dly11[2] dly1 1[1] dly11[0] led11 pwm delay time setting (low 8bit) 46h r/w 00h dlycnt11m - - - - dly11[11] dly11[10] dly11[9] dly11[8] led11 pwm delay time setting (high 4bit) 47h r/w 00h dlycnt12l dly12[7] dly12[6] dly12[5] dly12[4] dly12[3] dly12[2] dly1 2[1] dly12[0] led12 pwm delay time setting (low 8bit) 48h r/w 00h dlycnt12m - - - - dly12[11] dly12[10] dly12[9] dly12[8] led12 pwm delay time setting (high 4bit) 49h r/w 00h dlycnt13l dly13[7] dly13[6] dly13[5] dly13[4] dly13[3] dly13[2] dly1 3[1] dly13[0] led13 pwm delay time setting (low 8bit) 4ah r/w 00h dlycnt13m - - - - dly13[11] dly13[10] dly13[9] dly13[8] led13 pwm delay time setting (high 4bit)
datasheet 15/28 BD9267KUT tsz02201-0f1f0c100050-1- 2 ? 2012 rohm co., ltd. all rights reserved. 03.aug.2012 rev.001 www.rohm.com tsz22111 ? 15 ? 001 register map 3/3 address r/w default register name bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0 description 4bh r/w 00h dlycnt14l dly14[7] dly14[6] dly14[5] dly14[4] dly14[3] dly14[2] dly14[1] dly14[0] led14 pwm delay time setting (low 8bit) 4ch r/w 00h dlycnt14m - - - - dly14[11] dly14[10] dly14[9] dly14[8] led14 pwm delay time setting (high 4bit) 4dh r/w 00h dlycnt15l dly15[7] dly15[6] dly15[5] dly15[4] dly15[3] dly15[2] dly15[1] dly15[0] led15 pwm delay time setting (low 8bit) 4eh r/w 00h dlycnt15m - - - - dly15[11] dly15[10] dly15[9] dly15[8] led15 pwm delay time setting (high 4bit) 4fh r/w 00h dlycnt16l dly16[7] dly16[6] dly16[5] dly16[4] dly16[3] dly16[2] dly16[1] dly16[0] led16 pwm delay time setting (low 8bit) 50h r/w 00h dlycnt16m - - - - dly16[11] dly16[10] dly16[9] dly16[8] led16 pwm delay time setting (high 4bit) description of registers addr=00h ledena (ch1 to ch8 led enable control register: read/w rite) bit 7 6 5 4 3 2 1 0 register name leden[7] leden[6] leden[5] leden[4] leden[3] leden[2] leden[1] leden[0] default 1 1 1 1 1 1 1 1 addr=01h ledenb (ch9 to ch16 led enable control register: read/ write) bit 7 6 5 4 3 2 1 0 register name leden[15] leden[14] leden[13] leden[12] leden[11] leden[10] leden[9] leden[8] default 1 1 1 1 1 1 1 1 leden enable control 0 disable 1 enable addr=02h ledrefa (analog light modulation setting register - lo w 8 bits -: read/write) bit 7 6 5 4 3 2 1 0 register name ledref[7] ledref[6] ledref[5] ledref[4] ledref[3] ledref[2] ledref[1] ledref[0] default 0 1 1 0 0 1 1 0 addr=03h ledrefb (analog light modulation setting register - h igh 4 bits -: read/write) bit 7 6 5 4 3 2 1 0 register name - - - - ledref[11] ledref[10] ledref[9] ledref[8] default - - - - 0 0 1 0 ledref[11 0] (register output) led_ref_12 led_ref_01 to analog 000h 0cdh 0cdh 0ceh 7ffh 0ceh 7ffh 800h fffh 800h led_ref_01 to led_ref_16 signals to analog are used wit h the maximum voltage of 1.0v and the minimum voltag e of 0.1v, they are converted with the decoder listed above. minimum value (0.1v): 0.1 / 2 * 4095 = 0cdh maximum value (1.0v): 1 / 2 * 4095 = 800h default value (0.3v): 0.3 / 2 * 4095 = 266h note: reg02h and 03h are synchronized with the lead ing edge of vsync input signal.
datasheet 16/28 BD9267KUT tsz02201-0f1f0c100050-1- 2 ? 2012 rohm co., ltd. all rights reserved. 03.aug.2012 rev.001 www.rohm.com tsz22111 ? 15 ? 001 addr=04h maskset (error signal output mask time setting register: read/write) decoder errmsk[1] errmsk[0] error mask count value 0 0 02h(2d) 0 1 04h(4d) 1 0 08h(8d) 1 1 10 (16d) note: reg04h is synchronized with the leading edge of the vsync signal. note: for counting values, a counter that counts on e every four hsync signals is used. addr=05h errledopa (led1 to led8 error pin monitor: read) bit 7 6 5 4 3 2 1 0 register name errledop_08 errledop_07 errledop_06 errledop_05 errledop_04 errledop_03 errledop_02 errledop_01 default 0 0 0 0 0 0 0 0 addr=06h errledopb (led9 to led16 error pin monitor: read) bit 7 6 5 4 3 2 1 0 register name errledop_16 errledop_15 errledop_14 errledop_13 errledop_12 errledop_11 errledop_10 errledop_09 default 0 0 0 0 0 0 0 0 addr=07h errledsha (led1 to led8 error pin monitor: read) bit 7 6 5 4 3 2 1 0 register name errledsh_08 errledsh_07 errledsh_06 errledsh_05 errledsh_04 errledsh_03 errledsh_02 errledsh_01 default 0 0 0 0 0 0 0 0 addr=08h errledb (led9 to led16 error pin monitor: read) bit 7 6 5 4 3 2 1 0 register name errledsh_16 errledsh_15 errledsh_14 errledsh_13 errledsh_12 errledsh_11 errledsh_10 errledsh_09 default 0 0 0 0 0 0 0 0 addr=09h errressha (led1 to led8 error pin monitor: read) bit 7 6 5 4 3 2 1 0 register name errressh_08 errressh_07 errressh_06 errressh_05 errressh_04 errressh_03 errressh_02 errressh_01 default 0 0 0 0 0 0 0 0 addr=0ah errresshb (led9 to led16 error pin monitor: read) bit 7 6 5 4 3 2 1 0 register name errressh_16 errressh_15 errressh_14 errressh_13 errressh_12 errressh_11 errressh_10 errressh_09 default 0 0 0 0 0 0 0 0 bit 7 6 5 4 3 2 1 0 register name - - - - - - errmsk[1] errmsk[0] default - - - - - - 1 0
datasheet 17/28 BD9267KUT tsz02201-0f1f0c100050-1- 2 ? 2012 rohm co., ltd. all rights reserved. 03.aug.2012 rev.001 www.rohm.com tsz22111 ? 15 ? 001 addr=0bh errmossha (led1 to led8 error pin monitor: read) bit 7 6 5 4 3 2 1 0 register name errmossh_08 errmossh_07 errmossh_06 errmossh_05 errmossh_04 errmossh_03 errmossh_02 errmossh_01 default 0 0 0 0 0 0 0 0 addr=0ch errmosshb (led9 to led16 error pin monitor: read) bit 7 6 5 4 3 2 1 0 register name errmossh_16 errmossh_15 errmossh_14 errmossh_13 errmossh_12 errmossh_11 errmossh_10 errmossh_09 default 0 0 0 0 0 0 0 0 err err monitor 0 normal error addr=0dh dummy (dummy register: read/write) bit 7 6 5 4 3 2 1 0 register name dmy08 dmy07 dmy06 dmy05 dmy04 dmy03 dmy02 dmy01 default 0 0 0 0 0 0 0 0 addr=0eh sysconfig (dummy register: read/write) bit 7 6 5 4 3 2 1 0 register name eamprefc eamprefb eamprefa vsyncdis mosshdis resshdis ledshdis ledopdis default 0 1 1 0 0 0 0 0 ledopdis led open disable control 0 led open detection is enabled led open detection is disabled ledshdis led short disable control 0 led short detection is enabled led short detection is disabled resshdis res short disable control 0 resistor short detection is enabled resistor short detection is disabled mosshdis mos short disable control 0 mos short detection is enabled mos short detection is disabled vsncdis vsync disable control 0 vsync is used vsync is not used
datasheet 18/28 BD9267KUT tsz02201-0f1f0c100050-1- 2 ? 2012 rohm co., ltd. all rights reserved. 03.aug.2012 rev.001 www.rohm.com tsz22111 ? 15 ? 001 decoder eamprefc eamprefb eamprefa eamp ref. voltage setting eamp_dac_11 eamp_dac_01 0 0 0 0.3v 0f5h(245d) 0 0 1 0.4v 147h(327d) 0 1 0 0.5v 199h(409d) 0 1 1 0.6v 1ebh(491d) 1 0 0 0.8v 28fh(655d) 1 0 1 1.0v 333h(819d) 1 1 0 1.2v 3f7h(999d) 1 1 1 1.5v 4cch(1228d) dac output voltages to analog are converted with the decoders listed above. 0.3v: 0.3 / 5 * 4095 = 0f5h 0.4v: 0.4 / 5 * 4095 = 147h 0.5v: 0.5 / 5 * 4095 = 199h 0.6v: 0.6 / 5 * 4095 = 1ebh 0.8v: 0.8 / 5 * 4095 = 28fh 1.0v: 1.0 / 5 * 4095 = 333h 1.2v: 1.2 / 5 * 4095 = 3f7h 1.5v: 1.5 / 5 * 4095 = 4cch note: reg09h is synchronized with the leading edge of vsync signal. addr=0fh vsyncreg (vsyncreg control register: read/write) bit 7 6 5 4 3 2 1 0 register name - - - - - - - vsnc_reg default - - - - - - - 0 if vsync is not used, the register can be controlled by turning on/off vsyncreg instead of vsync. addr=10h ssmaskset (soft start mask register: read/write) bit 7 6 5 4 3 2 1 0 register name ssmask[7] ssmask[6] ssmask[5] ssmask[4] ssmask[3] ssmask[2] ssmask[1] ssmask[0] default 0 0 0 0 1 1 0 0 this register is used to make mask section setting (in sync with vsync) for the startup of power supply. addr=11ch dtycnt01l (led1 pwm duty setting register - low 8 bi ts -: read/write) bit 7 6 5 4 3 2 1 0 register name dty01[7] dty01[6] dty01[5] dty01[4] dty01[3] dty01[2] dty01[1] dty01[0] default 0 0 0 0 0 0 0 0 addr=12h dtycnt01m (led1 pwm duty setting register - high 4 b its -: read/write) bit 7 6 5 4 3 2 1 0 register name dty01[11] dty01[10] dty01[9] dty01[8] default 0 0 0 0 vsync_reg vsyncreg control 0 off on
datasheet 19/28 BD9267KUT tsz02201-0f1f0c100050-1- 2 ? 2012 rohm co., ltd. all rights reserved. 03.aug.2012 rev.001 www.rohm.com tsz22111 ? 15 ? 001 this register is used to make setting of pulse duty for pwm light modulation in a total of 12 bits, i. e., bit7-0 when addr = 11h and bit3-0 when addr = 12h. dty01[11 0] led pulse width 0000 0000 0000 normally set to low (default) 0000 0000 0001 hsync 1 clock width 0000 0000 0010 hsync 2 clock width 0000 0000 0011 hsync 3 clock width to to 1111 1111 1100 hsync 4092 clock width 1111 1111 1101 hsync 4093 clock width 1111 1111 1110 hsync 4094 clock width 1111 1111 1111 hsync 4095 clock width addr=13h 30h this register is used to make setting of pwm pulse width for led2 to led16. the setting procedure is the same as that for led1 with addr set to 0ah and 0bh. addr=31h dlycnt01l (led1 pwm delay setting register C low 8bi t-: read/write) bit 7 6 5 4 3 2 1 0 register name dly01[7] dly01[6] dly01[5] dly01[4] dly01[3] dly01[2] dly01[1] dly01[0] default 0 0 0 0 0 0 0 0 addr=32h dlycnt01m (led1 pwm delay setting registerChigh 4bit -: read/write) bit 7 6 5 4 3 2 1 0 register name dly01[11] dly01[10] dly01[9] dly01[8] default 0 0 0 0 this register is used to make setting of delay widt h for pwm light modulation in a total of 12 bits, i .e., bit7-0 when addr = 32h and bit3-0 when addr = 2eh. dly01[11 0] led delay width 0000 0000 0000 normally set to low (default) 0000 0000 0001 hsync1 clock width 0000 0000 0010 hsync 2 clock width 0000 0000 0011 hsync 3 clock width to to 1111 1111 1100 hsync 4092 clock width 1111 1111 1101 hsync 4093 clock width 1111 1111 1110 hsync 4094 clock width 1111 1111 1111 hsync 4095 clock width addr=33h 50h this register is used to make pwm delay width setti ng for led2 to led16. the setting procedure is the sa me as that for led1 with addr set to 2ah and 2bh.
datasheet 20/28 BD9267KUT tsz02201-0f1f0c100050-1- 2 ? 2012 rohm co., ltd. all rights reserved. 03.aug.2012 rev.001 www.rohm.com tsz22111 ? 15 ? 001 timing chart pwm delay and on duty setting procedure by making register setting, pwm output delay and on duty time counts of ch1 to ch16 can be controlled. the above timing chart shows an example for ch1. (to make delay time count setting, write 06h in add ress 2ch. to make on duty time count setting, write 07h in address 0ch.) the delay counter starts counting after counting th ree from the leading edge of vsync signal. when the c ounter reaches the set delay count value (06h), the duty counter will start counting simultaneously when the pwm_out_01 s ignal is set to h. subsequently, when the duty counter reaches the set duty count value (07h), the pwm_out_01 signal will be set to l. since then, the said sequence is continuously repeat ed. the same control is also carried out for ch2 to ch1 6. the delay counter counts up to ffch. even if the set value exceeds this maximum value, it will also cou nt up to ffch. oft-start masking function a value set at address 09h serves as the pulse numb er of the vsync signal and masks the error signal con trol in the relevant section. (example) when addr = 09h and data = 02h: 0 0 1 1 2 3 4 5 6 2 3 4 5 6 7 8 0 1 2 3 4 5 6 7 8 4093 4094 4095 0 1 2 vsync hsync delay counter duty counter pwm_out_01 vsync ssend error 0116 led_op_det_* pwm_out_* figure 17. setting for pwm delay and on duty figure 18. in case of addr:09h and data:02h
datasheet 21/28 BD9267KUT tsz02201-0f1f0c100050-1- 2 ? 2012 rohm co., ltd. all rights reserved. 03.aug.2012 rev.001 www.rohm.com tsz22111 ? 15 ? 001 error control there are the following four types of error detectio n signals: (1) led open, (2) led short, (3) register short, and (4) mos short the following section shows timing charts with the setting below: (example) dly01 11 0 ? 005 dty01 11 0 ? 2fd pmwmsk 1 0 ? 0 (pmw mask count value: 02 ) errmsk 1 0 ? 0 (err mask count value: 02 ) ssmsk 7 0 ? 01 figure 19-1. timing chart for error detection 1 error detected error undetected hsync hsync4i vsync pwm_out_01 ssend led_op_det_01 error 0 1 2 3 4 5 6 7 8 0a 0b 9 pwm_mskcnt50 0 1 2 3 4 5 6 7 8 err_mskcnt50 error? d e c f g i h a hsync hsync4i vsync pwm_out_01 ssend led_op_det_01 error 0 1 2 3 4 5 6 7 8 0a 0b 9 pwm_mskcnt50 0 err_mskcnt50 error? j k b hsync hsync 4i vsync pwm_out_01 ssend error *led _op_det _01 * ??? pwm_mskcnt50 err_mskcnt 5 0 a b 3 f 3f 3f 3 f 3f 00 3 f 3f 3 f note: apply the same chart for signals (2) and (3). enlarged chart error signal detected error signal is not detected enlarged chart
datasheet 22/28 BD9267KUT tsz02201-0f1f0c100050-1- 2 ? 2012 rohm co., ltd. all rights reserved. 03.aug.2012 rev.001 www.rohm.com tsz22111 ? 15 ? 001 hsync hsync4i vsync pwm_out_01 ssend res_sh_det_01 error pwm_mskcnt50 err_mskcnt50 3f 3f 3f 3f 3f 3f 3f 3f 3f 00 l m hsync hsync4i vsync pwm_out_01 ssend res_sh_det_01 error 00 01 02 03 04 05 06 07 08 0a 0b 09 pwm_mskcnt50 00 01 02 03 04 05 06 07 08 err_mskcnt50 0a 0b 09 0c 0d 0e l hsync hsync4i vsync pwm_out_01 ssend res_sh_det_01 error 00 01 02 03 04 05 06 07 08 0a 0b 09 pwm_mskcnt50 err_mskcnt50 0c 0d 00 m [operation the pwm_mskcnt counter starts counting from the fal ling edge of hsync4i next to the signal that set led_ op_01 to h. when the counter reaches the set count (02h), the err_maskcnt counter will start counting. when t he counter reaches the set count (02h), the error output signal will be set to h. subsequently, the error state is continually monitor ed at the leading edge of pwm_out_01 and judged as error not detected. after that, when the pwm_mskcnt counter r eaches the set count value, the error output signal will be set to l. the count numbers of pwm_mskcnt and err_mskcnt for the detection signal (4) are the same as those for the detection signals (1) to (3). figure 19-2. timing chart for error detection 2 enlarged chart enlarged chart
datasheet 23/28 BD9267KUT tsz02201-0f1f0c100050-1- 2 ? 2012 rohm co., ltd. all rights reserved. 03.aug.2012 rev.001 www.rohm.com tsz22111 ? 15 ? 001 normal operating mode, boot sequence when you light the led by general spi control, please follow the sequence below. input the power supply of vcc, dvdd. launch the stb from l to h. write the data to the register by spi control, then s et the led driver. input the vsync, hsync signal which is for pwm dimming . pwm dimming mode, boot sequence in BD9267KUT, as process mode, there is a test mode f or running the led driver, even there is no environment for spi control. after inputting the powe r supply of vcc and dvdd, by setting the stb to h, it can be changed to pwm dimming operation mode achiev ed by duty control immediately. and the operating conditions are as below power supply vcc and dvdd are in normal operating range. ? vcc=9.0v 35v dvdd=3.0v 3.6v settings of led driver default settings of register ? set all chs to on state led ch 16ch ? setting voltage for led current voltage of s1 s16 pin 0.30v ? reference voltage of error amplifier 0.60v ? soft start setting 16 count of vsync by inputting the spi control signal before the pwm signal of vsync and hsync, led can be controlled with register settings. figure 20. starting sequence for normal operation
datasheet 24/28 BD9267KUT tsz02201-0f1f0c100050-1- 2 ? 2012 rohm co., ltd. all rights reserved. 03.aug.2012 rev.001 www.rohm.com tsz22111 ? 15 ? 001 pwm dimmingoperation mode settings of pwm dimming operation mode ? vsync=pwm dimming signal input the pulse signal for pwm dimming to vsync. ? hsync=gnd setting for abnormal detection when you use the pwm dimming mode, please follow th e sequence below. input the power supply of vcc and dvdd. launch the stb from l to h. input the pulse signal to vsync. pwm dimming operation mode (with abnormol detection function) setting of pwm dimming ? vsync: pwm dimming signal (to input a pulse for pwm dimming to vsync pin) ? hsync: 4096 counts during 1cycle of vsync signal control the pwm operation of led output with pwm signal inputted to vsync. because the protection functions are masked, the lighting by led abnormal cannot proceed. the abnormal detected ch of led will be off, after vsync pulse count of 12. at the same time, err_det output to error ( errdet=l is abnormal) stop figure 21. starting sequence for pwm dimming1 figure 22. starting sequence for pwm dimming2 abnormal normal number of count number of count
datasheet 25/28 BD9267KUT tsz02201-0f1f0c100050-1- 2 ? 2012 rohm co., ltd. all rights reserved. 03.aug.2012 rev.001 www.rohm.com tsz22111 ? 15 ? 001 condition for protections protection name protection pin detection condition release condition protection type led open dx dx < 0.2v chx:en pwmx=high dx > 0.1v abnormal detection err_det signal output ledshort dx dx > 5v (lsp=open) chx=en pwmx=high dx < 5v (lsp=open) abnormal detection err_det signal output res short sx sx < 0.15 chx=en pwmx=high sx > 0.15v abnormal detection err_det signal output mosshort sx sx>0.15 chx=en pwmx=low sx < 0.15v abnormal detection err_det signal output vcc uvlo vcc vcc<7.3v vcc>7.5v abnormal detection err_det signal output ? ?? ? led_open protection when pwmx=high, if drain pin becomes 0.1v(typ) or lower, err_det = low is outputted and led open error will be detected. when pwmx=high, led open error is detected. err_det=low is outputted. if drain pin voltage is release condition, err_det=hi gh is outputted. when pwmx=low, led open error is not detected. when pwmx=high, led open error is detected. when pwmx =low, if drain pin voltage is release condition, err_det output keep-hold. ? ?? ? led_short protection when pwmx=high, if drain pin becomes 5v(typ) or more (lsp=open), err_det = low is outputted and led short error will be detected. when pwmx=high, led short error is detected. err_det=lo w is outputted. if drain pin voltage is released, err_det=high is out putted. when pwmx=low, led short error is not detected. when pwmx=high, led short error is detected. when pwm x=low, even though the drain pin voltage is realeased, err_det output is kept. figure 23. led open protection figure 24. led short protection (internal) (internal)
datasheet 26/28 BD9267KUT tsz02201-0f1f0c100050-1- 2 ? 2012 rohm co., ltd. all rights reserved. 03.aug.2012 rev.001 www.rohm.com tsz22111 ? 15 ? 001 ? ?? ? resistor short protection ? ?? ? mosfet short protection when pwmx=high, if the voltage of source pin becomes lower than 0.15v(typ), err_det = low is outputted and res short error will be detected, and this error state i s realeased when the voltage of sourse pin comes ba ck to 0.15v(typ) or higher. when pwmx=low, if the voltage of source pin becomes higher than 0.15v(typ), err_det = low is outputted and res short error will be detected, and this error state i s realeased when the voltage of sourse pin comes ba ck to 0.15v(typ) or lower. when pwmx=low, if source pin becomes 0.15v(typ) or m ore, mos short error is detected. err_det=low is outputted. if source pin voltage is release condition, err_det=h igh is outputted. when pwmx=high, if source pin becomes 0.15v(typ) or lower, res short error is detected. err_det=low is outputted. if source pin voltage is release condition, err_det =high is outputted. figure 25. resister short protection and mosfet short protec tion (internal)
datasheet 27/28 BD9267KUT tsz02201-0f1f0c100050-1- 2 ? 2012 rohm co., ltd. all rights reserved. 03.aug.2012 rev.001 www.rohm.com tsz22111 ? 15 ? 001 precautions in use 1.) this product is produced with strict quality co ntrol, but might be destroyed if used beyond its ab solute maximum ratings including the range of applied voltage or operation temperatu re. failure status such as short-circuit mode or o pen mode can not be estimated. if a special mode beyond the absolute m aximum ratings is estimated, physical safety counte rmeasures like fuse needs to be provided. 2.) the circuit functionality is guaranteed within of ambient temperature operation range as long as i t is within recommended operating range. the standard electrical characteri stic values cannot be guaranteed at other voltages in the operating ranges, however the variation will be small. 3.) when this product is installed on a printed cir cuit board, attention needs to be paid to the orien tation and position of ic. wrong installation may cause damage to ic. short circuit caused by problems like foreign particles entering between outputs or between an output and power gnd also may cause dama ge. 4.) the pin connected a connector need to connect t o the resistor for electrical surge destruction. 5.) use in a strong magnetic field may cause malfun ction. 6.) thermal design needs to be done with adequate m argin in consideration of allowable loss (pd) in ac tual operation state. 7.) this ic includes temperature protection circuit (tsd circuit). temperature protection circuit (tsd circuit) strictly aims blockage of ic from thermal runaway, not protection or assuranc e of ic. therefore use assuming continuous use and operation after this circuit is worked needs to not be done. 8.) this ic is a monolithic ic which has p+ isolati on for separation of elements and p board between e lements. a p-n junction is formed in this p layer and n laye r of elements, composing various parasitic elements . for example, a resistance and transistor are connec ted to a terminal as shown in the figure, when gnd>(terminal a) in the resistance and when g nd>(terminal b) in the transistor (npn), p-n juncti on operates as a parasitic diode. when gnd>(terminal b) in the transistor (npn), par asitic npn transistor operates in n layer of other elements nearby the parasitic diode described before. parasitic elements are formed by the relation of po tential inevitably in the structure of ic. operatio n of parasitic elements can cause mutual interference among circuits, malfuncti on as well as damage. therefore such use as will c ause operation of parasitic elements like application of voltage on t he input terminal lower than gnd (p board) need to not be done. status of this document the japanese version of this document is formal spe cification. a customer may use this translation ver sion only for a reference to help reading the formal version. if there are any differences in translation version of this document formal version takes priority figure 26.example of simple structure of monolithic ic parasitic element p board n gnd p n p (terminal a) p n resistance b gnd e c gnd p p n n n p n p board (terminal b) parasitic element gnd (terminal a) parasitic element gnd b b c e (terminal b) parasitic element transistor (npn)
datasheet 28/28 BD9267KUT tsz02201-0f1f0c100050-1- 2 ? 2012 rohm co., ltd. all rights reserved. 03.aug.2012 rev.001 www.rohm.com tsz22111 ? 15 ? 001 ordering information b d 9 2 6 7 k u t - xx product name package kut:tqfp64u packaging and forming xx: please confirm the formal name to our sales physical dimension tape and reel information (unit : mm) tqfp64u 0.08 0.1 0.1 1.0 0.1 1.2max. 0.5 7.0 0.2 9.0 0.3 9.0 0.3 7.0 0.2 64 49 1 16 17 32 33 48 0.125 0.1 0.15 0.1 0.4 * order quantity needs to be multiple of the minimum quantity. tray (with dry pack) container quantity direction of feed 1000pcs direction of product is fixed in a tray 1pin
datasheet d a t a s h e e t notice - rev.003 ? 2012 rohm co., ltd. all rights reserved. notice general precaution 1) before you use our products, you are requested to care fully read this document and fully understand its contents. rohm shall not be in any way responsible or liable for fa ilure, malfunction or accident arising from the use of any rohm?s products against warning, caution or note contained in this document. 2) all information contained in this document is current as of the issuing date and subjec t to change without any prior notice. before purchasing or using rohm?s products, please confirm the la test information with a rohm sales representative. precaution on using rohm products 1) our products are designed and manufactured for applicat ion in ordinary electronic equipments (such as av equipment, oa equipment, telecommunication equipment, home electroni c appliances, amusement equipment, etc.). if you intend to use our products in devices requiring extremel y high reliability (such as medical equipment, transport equipment, traffic equipment, aircraft/spacecra ft, nuclear power controllers, fuel c ontrollers, car equipment including car accessories, safety devices, etc.) and whose malfunction or failure may cause loss of human life, bodily injury or serious damage to property (?specific applications?), please consult with the rohm sale s representative in advance. unless otherwise agreed in writing by rohm in advance, ro hm shall not be in any way responsible or liable for any damages, expenses or losses incurred by you or third parties arising from the use of any ro hm?s products for specific applications. 2) rohm designs and manufactures its products subject to strict quality control system. however, semiconductor products can fail or malfunction at a certain rate. please be sure to implement, at your own responsibilities, adequate safety measures including but not limited to fail-safe desi gn against the physical injury, damage to any property, which a failure or malfunction of our products may cause. the following are examples of safety measures: [a] installation of protection circuits or other protective devices to improve system safety [b] installation of redundant circuits to reduce the impact of single or multiple circuit failure 3) our products are designed and manufactured for use under standard conditions and not under any special or extraordinary environments or conditio ns, as exemplified below. accordin gly, rohm shall not be in any way responsible or liable for any damages, expenses or losses arising from the use of an y rohm?s products under any special or extraordinary environments or conditions. if you intend to use our products under any special or extraordinary environments or conditions (as exemplified bel ow), your independent verification and confirmation of product performance, reliability, etc, prior to use, must be necessary: [a] use of our products in any types of liquid, incl uding water, oils, chemicals, and organic solvents [b] use of our products outdoors or in places where the products are exposed to direct sunlight or dust [c] use of our products in places where the products ar e exposed to sea wind or corrosive gases, including cl 2 , h 2 s, nh 3 , so 2 , and no 2 [d] use of our products in places where the products are exposed to static electricity or electromagnetic waves [e] use of our products in proximity to heat-producing components, plastic cords, or other flammable items [f] sealing or coating our products with resin or other coating materials [g] use of our products without cleaning residue of flux (ev en if you use no-clean type fluxes, cleaning residue of flux is recommended); or washing our products by using water or water-soluble cleaning agents for cleaning residue after soldering [h] use of the products in places subject to dew condensation 4) the products are not subjec t to radiation-proof design. 5) please verify and confirm characteristics of the final or mounted products in using the products. 6) in particular, if a transient load (a large amount of load applied in a short per iod of time, such as pulse) is applied, confirmation of performance characteristics after on-boar d mounting is strongly recomm ended. avoid applying power exceeding normal rated power; exceeding the power rating under steady-state loading c ondition may negatively affect product performance and reliability. 7) de-rate power dissipation (pd) depending on ambient temper ature (ta). when used in seal ed area, confirm the actual ambient temperature. 8) confirm that operation temperature is within t he specified range described in the product specification. 9) rohm shall not be in any way responsible or liable for fa ilure induced under deviant condi tion from what is defined in this document.
datasheet d a t a s h e e t notice - rev.003 ? 2012 rohm co., ltd. all rights reserved. precaution for mounting / circuit board design 1) when a highly active halogenous (chlori ne, bromine, etc.) flux is used, the resi due of flux may negatively affect product performance and reliability. 2) in principle, the reflow soldering method must be used; if flow soldering method is preferred, please consult with the rohm representative in advance. for details, please refer to rohm mounting specification precautions regarding application examples and external circuits 1) if change is made to the constant of an external circuit, pl ease allow a sufficient margin c onsidering variations of the characteristics of the products and external components, including transient characteri stics, as well as static characteristics. 2) you agree that application notes, re ference designs, and associated data and in formation contained in this document are presented only as guidance for products use. theref ore, in case you use such information, you are solely responsible for it and you must exercise your own indepen dent verification and judgment in the use of such information contained in this document. rohm shall not be in any way responsible or liable for any damages, expenses or losses incurred by you or third parties arising from the use of such information. precaution for electrostatic this product is electrostatic sensitive product, which may be damaged due to electrostatic discharge. please take proper caution in your manufacturing process and storage so that voltage exceeding t he products maximum rating will not be applied to products. please take special care under dry condit ion (e.g. grounding of human body / equipment / solder iron, isolation from charged objects, se tting of ionizer, friction prevention and temperature / humidity control). precaution for storage / transportation 1) product performance and soldered connections may deteriora te if the products are stor ed in the places where: [a] the products are exposed to sea winds or corros ive gases, including cl2, h2s, nh3, so2, and no2 [b] the temperature or humidity exceeds those recommended by rohm [c] the products are exposed to di rect sunshine or condensation [d] the products are exposed to high electrostatic 2) even under rohm recommended storage c ondition, solderability of products out of recommended storage time period may be degraded. it is strongly recommended to confirm sol derability before using products of which storage time is exceeding the recommended storage time period. 3) store / transport cartons in the co rrect direction, which is indicated on a carton with a symbol. otherwise bent leads may occur due to excessive stress applied when dropping of a carton. 4) use products within the specified time after opening a hum idity barrier bag. baking is required before using products of which storage time is exceeding the recommended storage time period. precaution for product label qr code printed on rohm products label is for rohm?s internal use only. precaution for disposition when disposing products please dispose them proper ly using an authorized industry waste company. precaution for foreign exchange and foreign trade act since our products might fall under cont rolled goods prescribed by the applicable foreign exchange and foreign trade act, please consult with rohm representative in case of export. precaution regarding intellectual property rights 1) all information and data including but not limited to application example contain ed in this document is for reference only. rohm does not warrant that foregoi ng information or data will not infringe any intellectual property rights or any other rights of any third party regarding such information or data. rohm shall not be in any way responsible or liable for infringement of any intellectual property rights or ot her damages arising from use of such information or data.: 2) no license, expressly or implied, is granted hereby under any intellectual property rights or other rights of rohm or any third parties with respect to the information contained in this document.
datasheet d a t a s h e e t notice - rev.003 ? 2012 rohm co., ltd. all rights reserved. other precaution 1) the information contained in this document is provi ded on an ?as is? basis and rohm does not warrant that all information contained in this document is accurate and/or error-free. rohm shall not be in any way responsible or liable for any damages, expenses or losses incurred by you or third parties resulting from inaccuracy or errors of or concerning such information. 2) this document may not be reprinted or reproduced, in whol e or in part, without prior written consent of rohm. 3) the products may not be disassembled, converted, modified, reproduced or otherwise changed without prior written consent of rohm. 4) in no event shall you use in any way whatsoever the pr oducts and the related technical information contained in the products or this document for any military purposes, incl uding but not limited to, the development of mass-destruction weapons. 5) the proper names of companies or products described in this document are trademarks or registered trademarks of rohm, its affiliated companies or third parties.

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