View KA3037_1438068.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

?2000 fairchild semiconductor international www.fairchildsemi.com rev. .1.0.1 may. 2000. 1 features ? 4-ch balanced transformerless (btl) driver ? 3-ch (forward - reverse) control dc motor driver ? operating supply voltage (4.5 v ~ 13.2 v) ? built-in thermal shut down circuit (tsd) ? built-in all channel mute circuit ? built-in power save mode circuit ? built-in stand by mode circuit ? built-in variable regulator description the fan8037 is a monolithic integrated circuit suitable for a 7-ch motor driver which drives the tracking actuator, focus actuator, sled motor, tray motor, changer motor, panel motor and, spindle motor of the cdp/car-cd systems. 48-qfph-1414 fan8037 (KA3037) 7-ch motor driver target application ? compact disk player (tray, changer) ? video compact disk player (tray, changer) ? car compact disk player (tray, changer) ? mixing with compact disk player and mini disk player (tray, changer, panel) ordering information device package operating temp. fan8037 48-qfph-1414 - 35 c ~ +85 c
fan8037 (KA3037) 2 pin assignments 1 2 3 4 5 6 7 8 9 27 26 25 13 14 15 16 17 18 19 20 21 22 23 24 48 47 46 45 44 43 42 41 40 39 38 37 30 29 28 33 32 31 36 35 34 fan8037 in2.1 in2 .2 out2 in3.1 in3 .2 out3 in4.1 in4 .2 out4 ctl1 fwd1 rev1 10 11 12 do2 - pgnd1 do3+ do3 - do4+ do4 - do5+ do5 - pgnd2 do6+ do6 - do7+ out1 in1 .2 in1.1 svcc vref resx regx regox pvcc1 do1+ do1 - do2+ ctl2 fwd2 rev2 sgnd fwd3 rev3 ctl3 sb ps mute pvcc2 do7 -
fan8037 (KA3037) 3 pin definitions pin number pin name i/o pin function descrition 1 in2.1 i ch2 op-amp input (+) 2in2 .2 i ch2 op-amp input ( - ) 3 out2 o ch2 op-amp output 4 in3.1 i ch3 op-amp input (+) 5in3 .2 i ch3 op-amp input ( - ) 6 out3 o ch3 op-amp output 7 in4.1 i ch4 op-amp input (+) 8in4 .2 i ch4 op-amp input ( - ) 9 out4 o ch4 op-amp output 10 ctl1 i ch5 motor speed control 11 fwd1 i ch5 forward input 12 rev1 i ch5 reverse input 13 ctl2 i ch6 motor speed control 14 fwd2 i ch6 forward input 15 rev2 i ch6 reverse input 16 sgnd - signal groung 17 fwd3 i ch7 forward input 18 rev3 i ch7 reverse input 19 ctl3 i ch7 motor speed control 20 sb i stand by 21 ps i power save 22 mute i all mute 23 pvcc2 - power supply voltage (for ch5, ch6, ch7) 24 do7 - o ch7 drive ouptut ( - ) 25 do7+ o ch7 drive output (+) 26 do6 - o ch6 drive output ( - ) 27 do6+ o ch6 drive output (+) 28 pgnd2 - power ground2 (for ch5, ch6, ch7) 29 do5 - o ch5 drive output ( - ) 30 do5+ o ch5 drive output (+) 31 do4 - o ch4 drive output ( - ) 32 do4+ o ch4 drive output (+)
fan8037 (KA3037) 4 pin definitions (continued) pin number pin name i/o pin function descrition 33 do3 - o ch3 drive output ( - ) 34 do3+ o ch3 drive output (+) 35 pgnd1 - power ground 1 (for ch1, ch2, ch3, ch4) 36 do2 - o ch2 drive output ( - ) 37 do2+ o ch2 drive output (+) 38 do1 - o ch1 drive output ( - ) 39 do1+ o ch1 drive output (+) 40 pvcc1 - power supply voltage (for ch1, ch2, ch3, ch4) 41 regox i regulator feedback input 42 regx o regulator output 43 resx i regulator reset input 44 vref i bias voltage input 45 svcc - signal supply voltage 46 in1.1 i ch1 op-amp input (+) 47 in1 .2 i ch1 op-amp input ( - ) 48 out1 o ch1 op-amp output
fan8037 (KA3037) 5 internal block diagram notes: 1. sw = logic switch 2. msc = motor speed control 3. d = output driver + - + - + - + - + - + - s w m s c - + d d do2 - pgnd1 do3+ do3 - do4+ do4 - do5+ do5 - pgnd2 do6+ do6 - do7+ 1 2 3 4 5 6 7 8 9 10 11 12 in2.1 in2 .2 out2 in3.1 in3 .2 out3 in4.1 in4 .2 out4 ctl1 fwd1 rev1 13 14 15 16 17 18 19 20 21 22 23 24 ctl2 fwd2 rev2 sgnd fwd3 rev3 ctl3 sb ps mute pvcc2 do7 - 25 26 27 28 29 30 31 32 33 34 35 36 + - 37 38 39 40 41 42 43 44 45 46 47 48 do2+ do1 - do1+ pvcc1 regox regx resx vref svcc in1.1 in1 .2 out1 s w m s c - + d d s w m s c - + d d t. s . d stand by all mute power save + - + - + - + - + - + - + -
fan8037 (KA3037) 6 equivalent circuits description pin no. internal circuit input opin (+) opin ( - ) 46,47,1,2 4,5,7,8 input opout 48,3,6,9 ctl 10,13,19 logic drive fwd input rev input 11,12, 14,15, 17,18 svcc svcc 46 1 4 7 47 2 5 8 svcc 0.05k 0.05k svcc svcc 48 3 6 9 svcc 1k 13 19 10 svcc 0.05k svcc 11 12 14 15 30k 30k 17 18 0.05k
fan8037 (KA3037) 7 equivalent circuits (continued) description pin no. internal circuit power save standby 20,21 mute 22 logic drive output 24, 25 26, 27 29,30 4-ch drive output 31, 32 33, 34 36, 37 38, 39 svcc 20 21 50k 50k 0.05k svcc 22 svcc 50k 50k 0.05k svcc 24 25 26 27 25k pvcc2 1k 30k 29 30 svcc 31 32 33 34 25k pvcc1 20k 36 37 20k 38 39 svcc
fan8037 (KA3037) 8 equivalent circuits (continued) description pin no. internal circuit ref 44 resx 43 reg0x 41 regx 42 svcc 44 1k 20k 20k 1k 0.05k svcc 50k 50k svcc 43 0.05k svcc 1k svcc 41 0.05k svcc 42 25k svcc 60k svcc 0.05k 0.5k
fan8037 (KA3037) 9 absolute maximum ratings ( ta=25 c) notes: 1. when mounted on 70mm 70mm 1.6mm pcb 2. power dissipation reduces 24mw/ c for usin g above t a = 25 c 3. do not exceed p d and soa (safe operating area) recommended operating conditions ( ta=25 c) parameter symbol value unit maximum supply volta g esvcc max 18 v pvcc1 18 v pvcc2 18 v power dissipation p d 3 note w operatin g temperature t opr - 35 ~ +85 c stor g e temperature t stg - 55 ~ +150 c maximum output current i omax 1a parameter symbol min. typ. max. unit operatin g supply volta g e svcc 4.5 - 13.2 v pvcc1 4.5 - svcc v pvcc2 4.5 - svcc v 3,000 2,000 1,000 0 0 25 50 75 100 125 150 175 pd (mw) ambient temperature, ta [ c]
fan8037 (KA3037) 10 electrical characteristics (sv cc = pv cc1 = pv cc2 = 8v, t a = 25 c, unless otherwise specified) parameter symbol conditions min. typ. max. units quiescent circuit current i cc under no-load 15 25 35 ma power save on current i ps pin21=gnd - 1 2 ma stand by on voltage v sbon pin20=variation - - 0.5 v stand by off voltage v sboff pin20=variation 2 - - v power save on voltage v pson pin21=variation - - 0.5 v power save off voltage v psoff pin21=variation 2 - - v all mute on voltage v mon pin22=variation - - 0.5 v all mute off voltage v moff pin22=variation 2 - - v driver circuit (r l =12 w ) output offset voltage v oo v in =2.5v - 80 - +80 mv maximum output voltage 1 v om1 v cc =pv cc1 =pv cc2 =8v, r l =12 w 5.5 6.5 - v maximum output voltage 2 v om2 v cc =pv cc1 =pv cc2 =13v, r l =24 w 10.5 11.5 - v closed-loop voltage gain a vf v in =0.1vrms,f=1khz 10.5 12 13.5 db slew rate sr square, vout=4vp-p,f=120khz - 2 - v/ m s input opamp circuit input offset voltage v of - - 30 - +30 mv input bias current i b - - - 300 na high level output voltage v oh r l =open 7.2 7.7 - v low level output voltage v ol r l =open - 0.2 0.5 v output sink current i sink r l =50 w 24 -ma output source current i source r l =50 w 24 -ma open loop voltage gain g vo v in = - 75db - 70 - db slew rate sr square, vout=2vp-p, f=120khz - 2.5 - v/ m s
fan8037 (KA3037) 11 electrical characteristics (continued) (sv cc = pv cc1 = pv cc2 = 8v, t a = 25 c, unless otherwise specified) parameter symbol conditions min. typ. max. units tray, changer,panel drive circuit (r l =45 w ) input high level voltage v ih -2--v input low level voltage v il - - - 0.5 v output voltage 1 v o1 v cc =8v, v ctl =2.5v, r l =12 w -5-v output voltage 2 v o2 v cc =8v, v ctl =3v, r l =45 w -6-v output voltage 3 v o3 v cc =13v, v ctl =4.5v, r l =45 w -9-v output load regulation d v rl v ctl =3v, i l =100ma ? 400ma - 300 700 mv output offset voltage 1 v oo1 v in =5v, 5v - 40 - +40 mv output offset voltage 2 v oo2 v in =0v, 0v - 40 - +40 mv variable regulator circuit load regulation d v rl i l =0 ? 200ma - 40 0 +10 v line regulation d v cc i l =200ma, v cc =6v ? 9v - 20 0 +30 mv regulator output voltage 1 v reg1 i l =100ma 4.75 5.0 5.25 v regulator output voltage 2 v reg2 i l =100ma 3.135 3.3 3.465 v regulator reset on voltage reson pin43=varivation - - 0.5 v regulator reset off voltage resoff pin43=varivation 2 - - v
fan8037 (KA3037) 12 application information 1. thermal shutdown ? when the chip temperature reaches to 175 c, then the tsd circuit is activated. ? this shuts down the bias current of the output drivers, and all the output drivers are in cut-off state. thus the chip temperature begins to decrease. ? when the chip temperature falls to 150 c, the tsd circuit is deactivated and the output drivers are normally operated. ? the tsd circuit has the hysteresis temperature of 25 c. 2. all mute function ? when the pin22 is high, the tr q1 is turned on and q2 is off, so the bias circuit is enabled. on the other hand, when the pin22 is low (gnd) , the tr q1 is turned off and q2 is on, so the bias circuit is disabled. ? this function will cause all the output drivers to be in mute state. ? truth table is as follows; 3. power save function ? when the pin21 is high, the tr q3 is turned on and q4 is off, so the bias circuit is enabled. on the other hand, when the pin21 is low (gnd) , the tr q3 is turned off and q4 is on, so the bias circuit is disabled. ? that is, this function will cause all the circuit blocks of the chip except for the variable regulator to be in the off state. thus the low power quiescent state is established ? truth table is as follows; pin#22 fan8037 high mute-off low mute-on pin#21 fan8037 high power save off low power save on svcc r2 r3 q0 output driver bias hysteresis r1 ihys i ref 22 q1 bias blocks (4-ch btl and 3-ch logic loading) q2 svcc 21 q3 main bias (except for variable reg.) svcc q4
fan8037 (KA3037) 13 4. standby function ? when the pin20 is high, the tr q5 is turned on and q6 is off, and the bias circuit is enabled. on the other hand, when the pin20 is low (gnd) , the tr q5 is turned off and q6 is on, and the bias circuit is disabled. ? this function will cause the output drivers of the 4-ch btl circuit (focus, tracking, spindle, sled) to be in off state. ? truth table is as follows 5. regulator & reset function the regulator and reset circuits are illustrated in the figure 1. ? the external circuit is composed of the pnp transistor(ksb772), capacitor(about 33 m f) and 2 feedback resistors. ? the capacitor is used as a ripple filter and should have good temperature characteristics. ? the regulator output voltage is determined as follows. v reg = (1+r1/r2) 2.5 ? when the voltage of the pin 43 (vreset) is high, the regulator circuit operates normally. if the voltage of pin 43 is low, the regulator circuit is disabled . figure 1. regulator circuit pin20 KA3037 high standby off low standby on 20 q5 bias block (4-ch btl output driver) q6 svcc + - 40 43 41 42 ksb772 v reg svcc 33 m f 2.5v r1 r2 vreset fan8037
fan8037 (KA3037) 14 6. focus, tracking actuator, spindle, sled motor drive part ? vref is given by the external bias voltage of the pin 44. ? the input signal (vin) through pins 46,1,4 and 7 is amplified one time and then fed to the output stage. (assume that input opamp was used as a buffer) ? the total closed loop voltage gain is as follows ? to change the total closed loop voltage gain, use the input opamp as an amplifier ? the output stage is the balanced transformerless (btl) driver. ? the bias voltage vp is expressed as ; 44 vref 46 1 4 48 3 6 47 2 5 8 + - + - 7 9 + - opin+ opin- vp vp m r1 r2 r2 r2 r2 r1 r1 r2 dop don + - pvcc1 60k 62k dp qp vin 39 38 37 34 32 31 33 36 vin vref v d + = dop vp 2 v d + = don vp 2 C v d = vout dop don 4 v d = C = gain 20 vout v d ------------ - lo g 20 4 lo g 12db = == vp pvcc1 vdp C vcesatqp C () 62k 60k 62k + ------------------------- - vcesatqp + = pvcc1 vdp C vcesatqp + 1.97 -------------------------------------------------------------------------- - = vcesatqp + - - - - - - - - - - (1)
fan8037 (KA3037) 15 7. tray, changer,panel motor drive part ? rotational direction control the forward and reverse rotational direction is controlled by fwd (pin 11,14, 17) and rev (pin 12,15,18) and the input conditions are as follows. ? where vp(power reference voltage) is approximately about 3.75v at pvcc2=8v ) according to equation (1). ? where out1 pins are pins24,26,29 and out2 pins are pins25,27,30 ? motor speed control (when svcc=pvcc2=8v) - maximum torque is obtained when the pins (10,13 and 19 (ctl1, 2, 3)) are open. - if the voltages of the pins (10,13 and 19 (ctl1, 2, 3)) are 0v, the motor will not operate. - when the control voltage of the pins 10,13 and 19 (ctl1, 2, 3) are between 0 and 3.25v, the differential output voltage(v(out1,out2)) is about two times of control voltage. hence, the control to the differential output gain is two. - when the control voltage is greater than 3.25v, the output voltage is saturated at the 6.5v due to the output swing limitation. input output fwd rev out 1 out 2 state h h vp vp brake hlhlforward lhlhreverse l l - - hign impedance m 24 26 25 27 13 19 14 17 15 18 out 1 out 2 d level shift m.s.c s.w d ctl1,2,3 in fwd rev in 11 12 10 29 30 v(out1,out2) v ctl 0 6.5v 3.25v
fan8037 (KA3037) 16 8. bootstrapped operation ? ic has two kinds of power supplies, the power supply , svcc is for predrivers and the other circuit blocks(svcc). pvcc1 and pvcc2 are for the power transistors. ? when svcc=pvcc n (n= 1,2), no bootstrapped operation occurs. thus the single-ended maximum output voltage is ? if larger output swing is requied, use the bootstrap function. when the bootsrap function is operated. ? in this mode, the single-ended maximum output voltage is ; thus wide output dynamic range can be obtained. vout svcc pvcc predriver power trs (pd) q1 q2 q3 svcc vcesatq3 vbe1 + () svcc 1v C @ C svcc pvccn 1v + > pvccn vcesatq1 pvccn 0.5 C @ C
fan8037 (KA3037) 17 typical performance characteristics vcc & icc 0 5 10 15 20 25 30 35 40 4681012141618 vcc (v) icc (ma) temp & icc 0 5 10 15 20 25 30 35 40 -50 -30 -10 10 30 50 70 90 110 temp ( c) vcc=4.5v vcc=13.2 v vcc=8v vcc & vom1 0 2 4 6 8 10 12 14 468101214 vom1 (v) vom1_ch1 vom1_ch2 vom1_ch3 vom1_ch4 0 2 4 6 8 10 12 14 4 6 8 10 12 14 vo m2_c h1 vo m2_c h2 vo m2_c h3 vo m2_c h4 0 1 2 3 4 5 6 7 8 0 0.2 0.4 0.6 0.8 1 iom (a) vout (v) ch 1_upp ch 1_low ch 2_upp ch 2_low ch 3_upp ch 3-low ch 4_upp ch 4_low vcc & avf 5 7 9 11 13 468101214 avf (db) icc (ma) vcc (v) vcc (v) vcc (v) vom2 (v) vcc & vom2 iom & vout
fan8037 (KA3037) 18 typical performance characteristics (continued) temp & vom 0 4 8 12 -50 -30 -10 10 30 50 70 90 110 vom(v) vom1 vom 2 0 1 2 3 4 5 6 6 8 10 12 14 vcc (v) vcc (v) temp ( c) temp ( c) temp ( c) vo1 (v) vo _ch5 vo _ch6 vo _ch7 vctl & vo (loading) temp & vo (loading) 0 2 4 6 8 10 12 14 0246 vctl (v) vo(v) vo(v) vo_12 ohm vo_24 ohm 0 2 4 6 8 10 12 -50 -30 -10 10 30 50 70 90 110 vo1 vo2 vo3 vcc & vreg 0 1 2 3 4 5 6 46 8101214 vreg(v) vreg(v) vreg1 vreg2 temp & vreg 0 1 2 3 4 5 6 -50 -30 -10 10 30 50 70 90 110 vreg1 vreg2 vcc & vo1
fan8037 (KA3037) 19 typical performance characteristics (continued) vcc & isource 0 1 2 3 4 5 6 7 4 6 8 10 12 14 vcc (v) isource (ma) 0 5 10 15 20 25 30 35 40 45 50 46 8101214 i sink (ma) vcc (v) vcc & isink
fan8037 (KA3037) 20 test circuits i l i l 37 38 39 40 41 42 43 44 45 46 47 48 9 10 11 12 8 7 6 5 4 1 2 3 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 31 32 33 34 35 36 op in (+) op in (-) op out r l2 i l i l ctl2 opin(+) opin( - ) opout fan8037 in2.1 in2.2 out2 in3.1 in3 .2 out3 in4.1 in4 .2 out4 ctl1 fwd1 rev1 ctl2 fwd2 rev2 sgnd fwd3 rev3 ctl3 sb ps mute pvcc2 do7 - do7+ do6 - do6+ pgnd1 do5 - do5+ do4 - do4+ do3 - do3+ pgnd2 out1 in1 .2 in1.1 svcc vref resx regx regox pvcc1 do1+ do1 - do2+ r l3 29 30 op in (+) op in (-) op out op in (+) op in (-) op out op in (+) op in (-) op out do2- in2a in2b vref 2.5 v + 100 m f + 1 2 50 w 1000 m f 22 m f + r 2 r 1 r l1 v cc i l r l4 r l5 r l6 ctl1 in1a in1b a 123 v pulse v a b 123 v b c d 50 w v cc 1 2 v out op - amp part ctl3 in3a in3b ripple r l7 i l i l
fan8037 (KA3037) 21 typical application circuits 1 [voltage control mode] notes: radiation pin is connected to the internal gnd of the package. connect the pin to the external gnd. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 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 m m m ty cg pl control tray input changer input vref focus input tracking input sled input spindle input [servo pre amp] [controller] where ty is tray motor. cg is changer motor fan8037 out1 in1 .2 in1.1 svcc vref resx regx regox pvcc1 do1+ do1 - do2+ in2.2 out2 in3.1 in3 .2 out3 in4.1 in4 .2 out4 ctl1 fwd1 ctl2 fwd2 rev2 sgnd fwd3 rev3 clt3 sb ps mute pvcc2 do7 - r 2 r 1 m power save focus, tracking, sled spindle mute changer tray spindle sled tracking focus v cc + 22 m f regout do7+ do6 - pgnd2 do3+ do3 - do4+ do4 - do5+ do5 - pgnd2 do6+ do2 - in2.1 rev1 all mute m panel panel input pl is panel motor
fan8037 (KA3037) 22 typical application circuits 2 [ differential pwm control mode ] notes: radiation pin is connected to the internal gnd of the package. connect the pin to the external gnd 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 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 m m m ty cg pl control tray input changer input vref focus input tracking input sled input spindle input [servo pre amp] [controller] where ty is tray motor. cg is changer motor fan8037 out1 in1 .2 in1.1 svcc vref resx regx regox pvcc1 do1+ do1 - do2+ in2.2 out2 in3.1 in3 .2 out3 in4.1 in4 .2 out4 ctl1 fwd1 ctl2 fwd2 rev2 sgnd fwd3 rev3 clt3 sb ps mute pvcc2 do7 - r 2 r 1 m power save focus, tracking, sled spindle mute changer tray spindle sled tracking focus v cc + 22 m f regout do7+ do6 - pgnd2 do3+ do3 - do4+ do4 - do5+ do5 - pgnd2 do6+ do2 - in2.1 rev1 all mute m panel panel input pl is panel motor
48-qfph-1414 #1 #48 (0.825) 17.20 0.30 (4.85) 0.10max 0.65 14.00 0.20 17.20 0.30 14.00 0.20 + 0.10 -0.05 0.30 0.80 0.20 0.10max 2.60 0.10 3.00max 0.00~0.25 0~8 + 0.10 -0.05 0.20
trademarks the following are registered and unregistered trademarks fairchild semiconductor owns or is authorized to use and is not intended to be an exhaustive list of all such trademarks. life support policy fairchilds products are not authorized for use as critical components in life support devices or systems without the express written approval of fairchild semiconductor corporation. as used herein: 1. life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, or (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in significant injury to the user. 2. a critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. product status definitions definition of terms datasheet identification p roduct status definition advance information preliminary no identification needed obsolete this datasheet contains the design specifications for product development. specifications may change in any manner without notice. this datasheet contains preliminary data, and supplementary data will be published at a later date. fairchild semiconductor reserves the right to make changes at any time without notice in order to improve design. this datasheet contains final specifications. fairchild semiconductor reserves the right to make changes at any time without notice in order to improve design. this datasheet contains specifications on a product that has been discontinued by fairchild semiconductor. the datasheet is printed for reference information only. formative or in design first production full production not in production disclaimer fairchild semiconductor reserves the right to make changes without further notice to any products herein to improve reliability, function or design. fairchild does not assume any liability arising out of the application or use of any product or circuit described herein; neither does it convey any license under its patent rights, nor the rights of others. qfet? qs? qt optoelectronics? quiet series? supersot?-3 supersot?-6 supersot?-8 syncfet? tinylogic? uhc? fastr? globaloptoisolator? gto? hisec? isoplanar? microwire? optologic? optoplanar? pop? powertrench ? rev. f1 acex? bottomless? coolfet? crossvolt? dome? e 2 cmos tm ensigna tm fact? fact quiet series? fast ? vcx?

▲Up To Search▲

Price & Availability of KA3037

	To Download KA3037 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .