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5-channel motor driver for dvd player AM5680 data sheet 1 mar. 2007 rev. 1. 3 bcd semiconductor manufacturing limited general description the AM5680 is a five-channel btl driver ic for driv- ing motors and actuators used in dvd player. it con- tains two independent precise voltage regulators with adjustable range from 1.5v to 4v. furthermore, an under voltage detector is provided for system reset. the AM5680 is available in standard hsop-28 pack- age. features 4 channels dc motor btl driver 1 channel forward/reverse control dc motor btl driver built-in voltage detector for system reset built-in level shift circuit built-in mute mode built-in thermal shutdown circuit two built-in regulator controllers application dvd player figure 1. package type of AM5680 hsop-28
5-channel motor driver for dvd player AM5680 data sheet 2 mar. 2007 rev. 1. 3 bcd semiconductor manufacturing limited pin configuration figure 2. pin configuration of AM5680 (top view) m28 package hsop-28
2 9 10 11 12 13 14 8 6 1 3 4 5 7 28 27 26 25 24 23 22 21 20 19 18 17 15 16 trb_1 rego2 vinsl rego1 fwd rev vcc1 votr- votr+ vosl+ vosl- vofc- vofc+ (pgnd) vinfc mute bias trb_2 reset vinsp gnd vctl vccd vcc2 vosp- vosp+ votk- votk+ (pgnd) vintk
5-channel motor driver for dvd player AM5680 data sheet 3 mar. 2007 rev. 1. 3 bcd semiconductor manufacturing limited pin description pin number pin name function 1 vinfc input for focus driver 2 trb_1 regulator 1 driver output 3 rego2 regulator 2 feedback input 4 vinsl input for the sled driver 5 rego1 regulator 1 feedback input 6 fwd tray driver forward input 7 rev tray driver reverse input 8 vcc1 v cc for pre-drive block and power block of sled and tray 9 votr- tray driver output (-) 10 votr+ tray driver output (+) 11 vosl+ sled driver output (+) 12 vosl- sled driver output (-) 13 vofc- focus driver output (-) 14 vofc+ focus driver output (+) 15 votk+ tracking driver output (+) 16 votk- tracking driver output (-) 17 vosp+ spindle driver output (+) 18 vosp- spindle driver output (-) 19 vcc2 v cc for power block of spindle, tracking and focus 20 vccd input for voltage detection 21 vctl speed control input of tray driver 22 gnd ground 23 vinsp input for spindle driver 24 reset output for sy stem reset 25 trb_2 regulator 2 driver output 26 vintk input for tracking driver 27 bias input for reference voltage 28 mute input for mute control note 1: symbols of + and - (output of drivers) mean polarity with respect to input pin. (for example, if voltage of pin 1 is high, pin 14 is high and pin 13 is low.)
5-channel motor driver for dvd player AM5680 data sheet 4 mar. 2007 rev. 1. 3 bcd semiconductor manufacturing limited functional block diagram figure 3. functional block diagram of AM5680 42.5k 17k sled driver (4x) actuator driver (6x) 42.5k 17k spindle driver (4x) actuator driver (6x) mute bias vintk trb_2 reset vinsp gnd vctl vccd vcc2 vosp- vosp+ votk- votk+ vinfc trb_1 rego2 vinsl rego1 fwd rev vcc1 votr- votr+ vosl+ vosl- vofc- vofc+ 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 mute thermal shut down 17k v cc2 v cc2 v cc1 25.5k 42.5k tray driver pre-drv pgnd pgnd 17k v cc2 v cc1 voltage detector
5-channel motor driver for dvd player AM5680 data sheet 5 mar. 2007 rev. 1. 3 bcd semiconductor manufacturing limited ordering information package temperature range part number marking id packing type hsop-28 0 to 70 o c AM5680m28-e1 AM5680m28-e1 tube bcd semiconductor's pb-free products, as designated with "e1" suffix in th e part number, are rohs compliant. circuit type package m28: hsop-28 e1: lead free AM5680 - absolute maximum ratings (t a =25 o c) (note 2) recommended operating conditions (t a =25 o c) parameter symbol value unit supply voltage v cc1, 2 8.8 v power dissipation p d 1.7 (note 3) w operating junction temperature t j 150 o c storage temperature range t stg -55 to 150 o c esd (human body model) esd 2000 v esd (machine model) esd 200 v parameter symbol min max unit power supply voltage v cc1 4.3 8 v v cc2 4.3 to v cc1 v operating temperature t a 070 o c note 2: stresses greater than those listed under "a bsolute maximum ratings" may cause permanent damage to the device. these are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. exposure to "absolute max- imum ratings" for extended periods may affect device reliability. note 3: a. when mounted on a 70mm x 70mm x 1.6mm glass epoxy board. b. reduced by 13.6mw for each increase in t a of 1 o c over 25 o c.
5-channel motor driver for dvd player AM5680 data sheet 6 mar. 2007 rev. 1. 3 bcd semiconductor manufacturing limited electrical characteristics (note 4) parameter symbol conditions min typ max unit quiescent current i qc 16 ma mute on voltage v ston 00.5v mute off voltage v stoff 2.0 v cc1 v focus driver output offset voltage v ooffc -50 50 mv maximum output voltage v omfc at 10 ? load 3.0 3.5 v closed-loop voltage gain g vfc v in =v bias 0.2v 21.5 23.5 25.5 db tracking driver output offset voltage v ooftk -50 50 mv maximum output voltage v omtk at 10 ? load 3.0 3.5 v closed-loop voltage gain g vtk v in =v bias 0.2v 21.5 23.5 25.5 db sled driver output offset voltage v oofsl -100 100 mv maximum output voltage v omsl at 10 ? load 3.0 3.5 v closed-loop voltage gain g vsl v in =v bias 0.2v 18.0 20.0 22.0 db spindle driver output offset voltage v oofsp -50 50 mv maximum output voltage v omsp at 10 ? load 3.0 3.5 v closed-loop voltage gain g vsp v in =v bias 0.2v 13.5 15.5 17.5 db gain error by polarity ? g vsp v in =v bias 0.2v 012db voltage detector detecting voltage v ccd r l =200 ? , v ol <0.4 v 2.75 2.9 3.05 v low level output voltage v ol 0.4 v hysteresis voltage 200 mv detecting voltage temperature coefficient 0.01 %/ o c (t a =25 o c , v cc1 =v cc2 =5v, v bias =1.65v, r l =10 ? /45 ?, unless otherwise specified.)
5-channel motor driver for dvd player AM5680 data sheet 7 mar. 2007 rev. 1. 3 bcd semiconductor manufacturing limited electrical characteristi cs (continued, note 4) parameter symbol conditions min typ max unit tray driver output saturation voltage 1 v sat1tr upper+lower saturation, i l =200ma 0.7 1.3 1.6 v output saturation voltage between fwd and rev ? v sat1tr output saturation voltage 1 between fwd and rev -0.1 0.1 v output saturation voltage 2 v sat2tr upper+lower saturation, i l =500ma 1.0 2.1 2.5 v output adjustable gain on "h" side voltage g vtrh at 45 ? load, v vctl =1v 7.4 9.2 11 db tray motor driver input logic high level input voltage v ih 1.5 v cc1 v low level input voltage v il -0.3 0.5 v high level input current i ih v fwd =v rev =5v 110 270 a regulator (note 5) output voltage v reg i l =500ma 1.5 4.0 v output load differential ? v rl i l =0 to 500ma -50 0 50 mv power supply voltage differential ? v vcc v cc =4.3 to 8v, i l =500ma -25 0 25 mv note 4: this device is not designed for protection agains t radioactive rays. note 5: it is based on 8550d pnp transistor. (t a =25 o c , v cc1 =v cc2 =5v, v bias =1.65v, r l =10 ? /45 ?, unless otherwise specified.)
5-channel motor driver for dvd player AM5680 data sheet 8 mar. 2007 rev. 1. 3 bcd semiconductor manufacturing limited typical performance characteristics figure 4. focus driver characteristics (note 6) figure 7. spindle driver characteristics (note 6) figure 6. sled driver characteristics (note 6) figure 5. tracking driver characteristics (note 6) -0.6 -0.4 -0.2 0.0 0.2 0.4 0.6 -4 -3 -2 -1 0 1 2 3 4 output voltage (v) input voltage (v) v cc1 =v cc2 =5v v bias =1.65v r l =10 ? -0.6 -0.4 -0.2 0.0 0.2 0.4 0.6 -4 -3 -2 -1 0 1 2 3 4 output voltage (v) input voltage (v) v cc1 =v cc2 =5v v bias =1.65v r l =10 ? -0.6 -0.4 -0.2 0.0 0.2 0.4 0.6 -4 -3 -2 -1 0 1 2 3 4 output voltage (v) input voltage (v) v cc1 =v cc2 =5v v bias =1.65v r l =10 ? -1.0 -0.5 0.0 0.5 1.0 -4 -3 -2 -1 0 1 2 3 4 output voltage (v) input voltage (v) v cc1 =v cc2 =5v v bias =1.65v r l =10 ? note 6: input voltage herein is referenced to bias pin voltage.
5-channel motor driver for dvd player AM5680 data sheet 9 mar. 2007 rev. 1. 3 bcd semiconductor manufacturing limited typical performance ch aracteristics (continued) figure 9. power dissipation curve (note 3) figure 8. tray channel output voltage vs. vctl input voltage -0.2 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 output voltage (v) vctl input voltage (v) v cc1 =v cc2 =5v v bias =1.65v r l =45 ? 0 50 100 150 0.0 0.4 0.8 1.2 1.6 2.0 power dissipation (w) ambient temperature ( o c)
5-channel motor driver for dvd player AM5680 data sheet 10 mar. 2007 rev. 1. 3 bcd semiconductor manufacturing limited typical application figure 10. typical application of AM5680 in dvd player spindle servo -com sled focus tracking rev fwd m m focus coil m tracking coil 21 15 16 17 18 19 20 22 23 24 25 26 27 28 8 14 13 12 11 10 9 7 6 5 4 3 2 1 AM5680 v cc =5v 47 f adj 1.8v regout 4.4k 10k 47 f adj 3.3v regout 16.4k 10k 4.7k 0.1 f 0.1 f 3.3v v cc =5v v cc =5v 3.3v reset v ref mute v cc =5v tray voltage control
5-channel motor driver for dvd player AM5680 data sheet 11 mar. 2007 rev. 1. 3 bcd semiconductor manufacturing limited 1. the built-in thermal shutdown circuit mutes the output current when the chip temperature reaches 175 o c (typ). the hysteresis is set to 30 o c (typ), so the circuit will start up again when the chip temperature falls to 145 o c (typ). 2. in case mute pin voltage is under 0.5v or this pin is not connected, output current is muted (except for tray motor driver). mute pin vo ltage should be more than 2.0v for normal application. 3. bias pin (pin 27) should be pulled up to more than 1.2v. in case the bias pin voltage is pulled down below 0.9v (typ), the output current is muted. 4. insert the bypass capacitor (about 0.1 f) between vcc1,2 pin and gnd pin as close as possible to this chip. 5. heat dissipation fins are attached to the gnd on the inside of the package. make sure to connect them to the external gnd. 6. tray driver logic input: input circuit of pins 6 and 7 is designed to avoid simultaneous activation of upper and lower output tray; however, in order to improve reliability, apply motor forward/reverse input once through open mode. time period for open is recommended to be longer than 10msec. "h" side output voltage on output pins (votr+ or votr-) varies depending on output control terminal for tray (pin 21). "h" side output voltage is set to three times (9.2db typ) the voltage of vctl (pin 21). and, "l" side output voltage is equal to output saturation voltage. 7. for 3.3v i/o system, if voltage applied to vccd (pin 20) is lower than det ector threshold voltage (typ 2.9v), reset pin (pin 24) will generate a l level as reset signal. once the vccd comes over 3.1v, reset pin will change to h level immediately. fwd (pin6) rev (pin7) votr+ (pin10) votr- (pin9) function l l open open open mode lh l h reverse mode hl h l forward mode hh l l brake mode application information
5-channel motor driver for dvd player AM5680 data sheet 12 mar. 2007 rev. 1. 3 bcd semiconductor manufacturing limited mechanical dimensions unit: mm(inch) hsop-28 17.890(0.704) 0.204(0.008) 0 o _ 8 o 18.190(0.716) 0.360(0.014) 0.400(0.016) 1.270(0.050) 10.000(0.394) 10.650(0.419) 7.400(0.291) 7.600(0.300) 0.230(0.009) 0.470(0.019) 0.100(0.004) 0.300(0.012) 2.280(0.090) 2.630(0.104) 2.180(0.086) 2.330(0.092) 0.800(0.031) typ 5.050(0.199) 5.250(0.207)
important notice bcd semiconductor manufacturing limited reserves the right to make changes without further not ice to any products or specifi- cations herein. bcd semiconductor manufacturing limited does not as sume any responsibility for us e of any its products for any particular purpose, nor does bcd semiconductor manufacturi ng limited assume any liability aris ing out of the application or use of any its products or circui ts. bcd semiconductor manufacturing limited does not convey any license under its patent rights or other rights nor the rights of others. - wafer fab shanghai sim-bcd semiconductor manufacturing limited 800, yi shan road, shanghai 200233, china tel: +86-21-6485 1491, fax: +86-21-5450 0008 bcd semiconductor manufacturing limited main site regional sales office shenzhen office shanghai sim-bcd semiconductor manuf acturing co., ltd. shenzhen office advanced analog circuits (shanghai) corporation shenzhen office room e, 5f, noble center, no.1006, 3rd fuzhong road, futian district, shenzhen 518026, china tel: +86-755-8826 7951 fax: +86-755-8826 7865 taiwan office bcd semiconductor (taiwan) company limited 4f, 298-1, rui guang road, nei-hu district, taipei, taiwan tel: +886-2-2656 2808 fax: +886-2-2656 2806 usa office bcd semiconductor corporation 30920 huntwood ave. hayward, ca 94544, u.s.a tel : +1-510-324-2988 fax: +1-510-324-2788 - ic design group advanced analog circuits (shanghai) corporation 8f, zone b, 900, yi shan road, shanghai 200233, china tel: +86-21-6495 9539, fax: +86-21-6485 9673 bcd semiconductor manufacturing limited http://www.bcdsemi.com

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