AM5954AM28

Data Sheet 4-CHANNEL MOTOR DRIVER FOR DVD PLAYER General Description The AM5954A is a four-channel BTL driver IC for driving the motors and actuators in products for DVDplayer drivers. Two of the channels use current feedback to minimize the current phase shift caused by the influence of load inductance. This IC is an improved version of AZ5954. The AM5954A is available in HSOP-28 Package. AM5954A Features · · · Level Shift Circuit On Chip Internal Standby Mode Built-in Thermal Shutdown Circuit Applications · DVD Player HSOP-28 Figure 1. Package Type of AM5954A Mar. 2007 Rev. 1. 4 1 BCD Semiconductor Manufacturing Limited Data Sheet 4-CHANNEL MOTOR DRIVER FOR DVD PLAYER Pin Configuration M28 Package (HSOP-28) AM5954A VINFC CFCerr1 CFCerr2 VINSL+ VINSLVOSL VNFFC 1 2 3 4 5 6 7 28 27 26 25 24 23 22 STBY BIAS VINTK CTKerr1 CTKerr2 VINLD GND FIN (GND) FIN (GND) VCC PVCC1 PGND VOSLVOSL+ VOFCVOFC+ 8 9 10 11 12 13 14 21 20 19 18 17 16 15 PVCC2 VNFTK PGND VOLDVOLD+ VOTKVOTK+ Figure 2. Pin Configuration of AM5954A (Top View) Mar. 2007 Rev. 1. 4 2 BCD Semiconductor Manufacturing Limited Data Sheet 4-CHANNEL MOTOR DRIVER FOR DVD PLAYER Pin Description (Note 1) Pin Number 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 Pin Name VINFC CFCerr1 CFCerr2 VINSL+ VINSLVOSL VNFFC VCC PVCC1 PGND VOSLVOSL+ VOFCVOFC+ VOTK+ VOTKVOLD+ VOLDPGND VNFTK PVCC2 GND VINLD CTKerr2 CTKerr1 VINTK BIAS STBY Focus driver input For connection of capacitor for the error amp filter For connection of capacitor for the error amp filter Op Amp input (+) for the sled driver Op Amp input (-) for the sled driver Op Amp output for the sled driver Focus driver feedback pin Supply voltage Power supply for loading channel Ground for sled driver block Sled driver output (-) Sled driver output (+) Focus driver output (-) Focus driver output (+) Tracking driver output (+) Tracking driver output (-) Loading driver output (+) Loading driver output (-) Ground for actuator driver block Tracking driver feedback pin Power supply voltage for actuator driver block Ground Loading driver input For connection of capacitor for the error amp filter For connection of capacitor for the error amp filter Tracking driver input Bias input Standby control Function AM5954A Note 1: The indicated polarities for the output pin are for when all inputs are (+). The output H bridge power supply pins are PVCC2 for the focus, tracking channel, PVCC1 for the loading channel, and VCC for the pre-block and sled channel. Always ensure that VCC ≥ PVCC. Mar. 2007 Rev. 1. 4 3 BCD Semiconductor Manufacturing Limited Data Sheet 4-CHANNEL MOTOR DRIVER FOR DVD PLAYER Functional Block Diagram AM5954A THERMAL SHUT DOWN STANDBY 1 VINFC 10K 20K 28 STBY 2 CFCerr1 CFCerr2 7.5K 27 BIAS 3 20k 10k 26 VINTK VINSL+ VINSLVOSL 4 5 7.5k 7.5k 25 CTKerr1 24 CTKerr2 7.5k 6 7 2 2 23 VINLD 22 GND VNFFC 10K 8 VCC VCC 10K 21 PVCC2 PVCC2 15k 9 PVCC1 PVCC1 25K 20 VNFTK 10 PGND 19 PGND 11 VOSL- 18 VOLDSLED DRIVER LOADING DRIVER 12 VOSL+ 17 VOLD+ 13 VOFC- 16 VOTKACUATOR DRIVER ACTUATOR DRIVER 14 VOFC+ 15 VOTK+ VCC PVCC2 PVCC1 Figure 3. Functional Block Diagram of AM5954A Mar. 2007 Rev. 1. 4 4 BCD Semiconductor Manufacturing Limited Data Sheet 4-CHANNEL MOTOR DRIVER FOR DVD PLAYER Ordering Information AM5954A Circuit Type Package M28: HSOP-28 E1: Lead Free Blank: Tin Lead TR: Tape and Reel Blank: Tube Marking ID Tin Lead Lead Free AM5954A Package Temperature Range 0 to 70oC Part Number Tin Lead AM5954AM28 Lead Free AM5954AM28-E1 AM5954AM28TR-E1 Packing Type Tube HSOP-28 AM5954AM28 AM5954AM28-E1 AM5954AM28-E1 Tape & Reel BCD Semiconductor's Pb-free products, as designated with "E1" suffix in the part number, are RoHS compliant. Absolute Maximum Ratings (Note 2) Parameter Supply Voltage Power Dissipation Operating Junction Temperature Storage Temperature Range ESD (Human Body Model) ESD (Machine Model) Symbol VCC, PVCC1/2 PD TJ TSTG ESD ESD Value 13.5 1.7 (Note 3) 150 -55 to 150 2000 200 Unit V W oC oC V V Note 2: Stresses greater than those listed under "Absolute 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 Maximum Ratings" for extended periods may affect device reliability. Note 3: The power dissipation is reduced by 13.6mW for each increase in temperature of 1oC over 25oC. Recommended Operating Conditions Parameter Supply Voltage Operating Temperature Symbol VCC PVCC1 PVCC2 TA Min 4.0 4.0 4.0 0 Max 13.2 VCC VCC 70 Unit V V V oC Mar. 2007 Rev. 1. 4 5 BCD Semiconductor Manufacturing Limited Data Sheet 4-CHANNEL MOTOR DRIVER FOR DVD PLAYER Electrical Characteristics (TA=25oC, VCC=PVCC=12V, PVCC2=5V, VBIAS=2.5V, RL1=RL2=RL3= RL4=8Ω, RD=0.5Ω, CFC=CTK=100pF, unless otherwise specified.) Parameter Quiescent Current Standby Current Standby-on Voltage Standby-off Voltage Actuator Driver Output Offset Current Maximum Output Amplitude Transmission Gain Sled Motor Driver/Pre Op Amp Common Input Voltage Range Input Bias Current Output Low Level Voltage Output Source Current Output Sink Current Sled Motor Driver Output Offset Voltage Maximum Output Voltage Closed-loop Voltage Gain Loading Motor Driver Output Offset Voltage VOOFLD VIN=VBIAS±2.0V Maximum Output Voltage VOMLD GVLD ∆GVLD VIN=VBIAS±1.5V VCC=PVCC1=5V VIN=VBIAS±0.2V VIN=VBIAS±0.2V -50 7.5 3.6 13.5 0 9 3.8 15.5 1 17.5 2 50 mV V V dB dB VOOFSL VOMSL GVSL VCC=5V VIN=VBIAS±1.5V VIN=VBIAS±0.2V -100 7.5 18.0 9 20.0 22.0 100 mV V dB VICM IIB VOL ISO ISI 0.3 1 VBIAS=6V VCC=PVCC1=5V -0.3 -0.3 14 0.1 0.58 11.0 4.0 300 0.3 V V nA V mA mA IOO VOM gm VIN=VBIAS±1.5V VIN=VBIAS±0.2V -6 3.6 1.3 3.8 1.5 1.7 6 mA V A/V Symbol ΙQC ΙST VSTON VSTOFF All channels off All channels on 0 2.0 Test Conditions Min Typ 18 Max 27 0.5 0.5 Unit mA mA V V AM5954A Closed-loop Voltage Gain Gain Error by Polarity Mar. 2007 Rev. 1. 4 6 BCD Semiconductor Manufacturing Limited Data Sheet 4-CHANNEL MOTOR DRIVER FOR DVD PLAYER Test Circuit AM5954A 100µH RD 100pF V2 100µF 16V RL4 VO4 VO2 RL2 A IO2 + + 17 16 VST VBIAS VIN2 VIN4 15 + 28 27 26 25 24 23 22 21 20 19 18 VOLD- VOLD+ VOTK- VOTK+ AM5954A VOSL- VOSL+ VOFC- VOFC+ 1 2 3 4 5 6 7 8 9 10 11 12 13 14 VIN1 VIN3 V VOP A ICC 100µF 16V V1 VO3 RL3 + VO1 + + A IO1 100pF RD RL1 100µH Figure 4. Test Circuit of AM5954A Mar. 2007 Rev. 1. 4 7 BCD Semiconductor Manufacturing Limited Data Sheet 4-CHANNEL MOTOR DRIVER FOR DVD PLAYER Typical Performance Characteristics AM5954A 5 4 3 VCC=PVCC1=12V PVCC2=5V Output Voltage: VO (V) 12 8 4 0 -4 -8 -12 VCC=PVCC1=12V PVCC2=5V BIAS=2.5V Output Voltage: VO (V) BIAS=2.5V 2 1 0 -1 -2 -3 -4 -5 -0.4 -0.2 0.0 0.2 0.4 RL=4Ω+100µH RL=8Ω+100µH RL=12Ω+100µH RL=20Ω+100µH RL=20Ω RL=12Ω RL=8Ω -1.2 -0.8 -0.4 0.0 0.4 0.8 1.2 Input Voltage: VIN (V) Input Voltage: VIN (V) Figure 5. Driver I/O Characteristics (Focus and Tracking, Note 4) Figure 6. Driver I/O Characteristics (Sled, Note 4) 5 4 3 BIAS=2.5V Op Amp Output Voltage: OP OUT (V) VCC=PVCC=5V Output Voltage: VO (V) 2 1 0 -1 -2 -3 -4 VCC=5V 4 3 RL=4Ω RL=8Ω RL=12Ω RL=20Ω -0.5 0.0 0.5 1.0 2 OP IN + OP OUT V 1 0 -1.0 0 1 2 3 4 5 Input Voltage: VIN (V) Op Amp Input Voltage: OP IN (V) Figure 7. Driver I/O Characteristics (Loading, Note 4) Figure 8. Op Amp I/O Characteristics (Note 4) Note 4: Input voltage herein is referenced to Bias pin voltage. Mar. 2007 Rev. 1. 4 8 BCD Semiconductor Manufacturing Limited Data Sheet 4-CHANNEL MOTOR DRIVER FOR DVD PLAYER Typical Performance Characteristics (Continued) AM5954A 60 10K 180 g 40 2.5V 10 µ 90 100 µ 20K 20 0 0 -90 θ -20 10k 10k VCC=12V PVCC=5V 100k 1M -180 10M Frequency: f (Hz) Figure 9. Op Amp Phase-Frequency, AmplitudeFrequency Characteristics 2.0 1.6 Power Dissipation (W) 1.2 0.8 0.4 0.0 0 50 100 O 150 Ambient Temperature ( C) Figure 10. Power Dissipation Curve Mar. 2007 Rev. 1. 4 9 BCD Semiconductor Manufacturing Limited Phase: θ (deg) Gain: g (dB) V IN Data Sheet 4-CHANNEL MOTOR DRIVER FOR DVD PLAYER Typical Application DSP TRACKING VCENTER STANDBY LOADING FOCUS AM5954A µ-COM SLED TRACKING COIL 5V LOADING MOTOR M Rd 28 27 26 25 24 23 22 21 20 19 18 17 16 15 AM5954A 1 2 3 4 5 6 7 8 9 10 11 12 13 14 5V or 12V M 5V or 12V SLED MOTOR Rd FOCUS COIL Figure 11. Typical Application of AM5954A in DVD Player Mar. 2007 Rev. 1. 4 10 BCD Semiconductor Manufacturing Limited Data Sheet 4-CHANNEL MOTOR DRIVER FOR DVD PLAYER Application Information 1. This IC has a built-in thermal shutdown circuit that mutes the output current when the chip temperature reachs 178oC (Typ). The hysteresis is set to 25oC (Typ), so the driver circuits start up again when the chip temperature falls to 153oC (Typ). The driver buffer is switched off when the supply voltage falls below 3.5V (Typ), and is switched back on when the voltage reaches 3.7V (Typ) again. In case standby pin voltage is under 0.5V or opened, quiescent current is muted. Standby pin voltage should be over 2.0V for normal application. BIAS pin (pin 27) should be pulled up more than 1.2V. In case bias pin voltage is pulled down under 0.9V (Typ), output current is muted. Insert the by-pass capacitor (approximately 0.1µF) between VCC-pin and GND-pin as near as possible to this IC. Heat dissipation fins are attached to the GND inside the package. Make sure to connect them to the external GND. Supplement: (Current-feedback driver) The transmission gain (output current/input voltage) is given by: gm=1/(RD + RWIRE) (A/V) RWIRE is the total gold wire resistance inside the package (0.15Ω ± 0.05Ω ) (Typ). AM5954A 2. 3. 4. 5. 6. Mar. 2007 Rev. 1. 4 11 BCD Semiconductor Manufacturing Limited Data Sheet 4-CHANNEL MOTOR DRIVER FOR DVD PLAYER Mechanical Dimensions HSOP-28 Unit: mm(inch) AM5954A 17.890(0.704) 18.190(0.716) 0.204(0.008) 0.360(0.014) 10.000(0.394) 10.650(0.419) 7.400(0.291) 7.600(0.300) 0.400(0.016) 1.270(0.050) 0o ~ 8 o 5.050(0.199) 5.250(0.207) 0.800(0.031) TYP 0.230(0.009) 0.470(0.019) 0.100(0.004) 0.300(0.012) 2.180(0.086) 2.330(0.092) 2.280(0.090) 2.630(0.104) Mar. 2007 Rev. 1. 4 12 BCD Semiconductor Manufacturing Limited http://www.bcdsemi.com IMPORTANT NOTICE BCD Semiconductor Manufacturing Limited reserves the right to make changes without further notice to any products or specifications herein. BCD Semiconductor Manufacturing Limited does not assume any responsibility for use of any its products for any particular purpose, nor does BCD Semiconductor Manufacturing Limited assume any liability arising out of the application or use of any its products or circuits. BCD Semiconductor Manufacturing Limited does not convey any license under its patent rights or other rights nor the rights of others. MAIN SITE BCD Semiconductor Manufacturing Limited - 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 - 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 REGIONAL SALES OFFICE Shenzhen Office Shanghai SIM-BCD Semiconductor Manufacturing 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