Data Sheet 4-CHANNEL BTL MOTOR DRIVER FOR CD-ROM/DVD AZ5954 General Description Features The AZ5954 is a four-channel BTL driver IC for driving the motors and actuators in products such as CDROM and DVD. Two of the channels use current feedback to minimize the current phase shift caused by the influence of load inductance. The IC is used in CDROM drivers and DVD drivers, etc. · Wide Dynamic Range (3.9V(Typ.) When VCC = 12V, PVCC=5V and RL=8Ω) · · · Level Shift Circuit On Chip Thermal Shutdown Circuit On Chip Internal Standby Mode The AZ5954 is available in HSOP-28 package. Applications · · CD-ROM Driver DVD Driver HSOP-28 Figure 1. Package Type of AZ5954 Apr. 2005 Rev. 1. 1 BCD Semiconductor Manufacturing Limited 1 Data Sheet 4-CHANNEL BTL MOTOR DRIVER FOR CD-ROM/DVD AZ5954 Pin Configuration M Package (HSOP-28) VINFC 1 28 STBY CFCerr1 2 27 BIAS CFCerr2 3 26 VINTK VINSL+ 4 25 CTKerr1 VINSL- 5 24 CTKerr2 VOSL 6 23 VINLD VNFFC 7 22 GND FIN (GND) FIN (GND) VCC 8 21 PVCC2 PVCC1 9 20 VNFTK PGND 10 19 PGND VOSL- 11 18 VOLD- VOSL+ 12 17 VOLD+ VOFC- 13 16 VOTK- VOFC+ 14 15 VOTK+ Figure 2. Pin Configuration of AZ5954 (Top View) Apr. 2005 Rev. 1. 1 BCD Semiconductor Manufacturing Limited 2 Data Sheet 4-CHANNEL BTL MOTOR DRIVER FOR CD-ROM/DVD AZ5954 Pin Description (Note 1) Pin Number Pin Name Function 1 VINFC Focus driver input 2 CFCerr1 For connection of capacitor for the error amp filter 3 CFCerr2 For connection of capacitor for the error amp filter 4 VINSL+ Op Amp input (+) for the sled driver 5 VINSL- Op Amp input (-) for the sled driver 6 VOSL 7 VNFFC Op Amp output for the sled driver 8 VCC 9 PVCC1 Power supply voltage for sled driver block 10 PGND Ground for sled driver block 11 VOSL- Sled driver output (-) 12 VOSL+ Sled driver output (+) Focus driver feedback pin Supply voltage 13 VOFC- Focus driver output (-) 14 VOFC+ Focus driver output (+) 15 VOTK+ Tracking driver output (+) 16 VOTK- Tracking driver output (-) 17 VOLD+ Loading driver output (+) 18 VOLD- Loading driver output (-) 19 PGND Ground for actuator driver block 20 VNFTK 21 PVCC2 Power supply voltage for actuator driver block 22 GND Ground 23 VINLD 24 CTKerr2 For connection of capacitor for the error amp filter 25 CTKerr1 For connection of capacitor for the error amp filter 26 VINTK 27 BIAS Bias input 28 STBY Standby control Tracking driver feedback pin Loading driver input Tracking driver input Note 1: The indicated polarities for the output pin are for when all inputs are (+). The outptut 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. Apr. 2005 Rev. 1. 1 BCD Semiconductor Manufacturing Limited 3 Data Sheet 4-CHANNEL BTL MOTOR DRIVER FOR CD-ROM/DVD AZ5954 Functional Block Diagram THERMAL SHUT DOWN STANDBY 28 1 VINFC 10K STBY 20K 27 2 CFCerr1 CFCerr2 BIAS 7.5K 26 3 20k VINSL+ VINSL- 4 VINTK 10k 25 7.5k CTKerr1 7.5k 24 5 CTKerr2 7.5k VOSL VNFFC 23 6 VINLD 22 7 GND 2 2 10K 8 VCC 10K PVCC1 25K 21 VCC PVCC2 9 PVCC2 20 15k PVCC1 10 VNFTK 19 PGND PGND 11 18 VOSL- VOLD- 12 LOADING DRIVER SLED DRIVER 17 VOSL+ VOLD+ 16 13 VOFC- VOTK- 14 ACUATOR DRIVER ACTUATOR DRIVER VOFC+ 15 VOTK+ VCC PVCC2 PVCC1 Figure 3. Functional Block Diagram of AZ5954 Apr. 2005 Rev. 1. 1 BCD Semiconductor Manufacturing Limited 4 Data Sheet 4-CHANNEL BTL MOTOR DRIVER FOR CD-ROM/DVD AZ5954 Ordering Information - AZ5954 E1: Lead Free Circuit Type Blank: Tin Lead Package M28: HSOP-28 Package Part Number Marking ID Temperature Range Tin Lead Lead Free Tin Lead Lead Free Packing Type 0 to 70oC AZ5954M28 AZ5954M28-E1 AZ5954M28 AZ5954M28-E1 Tube HSOP-28 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 Symbol Value Unit VCC, PVCC1/2 13.5 V PD 1.7 (Note 3) W TSTG -55 to 150 oC Power Dissipation Storage Temperature Range 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 Min Max Unit VCC 4.0 13.2 V PVCC1 4.0 VCC V PVCC2 4.0 VCC V TA 0 70 oC Apr. 2005 Rev. 1. 1 BCD Semiconductor Manufacturing Limited 5 Data Sheet 4-CHANNEL BTL MOTOR DRIVER FOR CD-ROM/DVD AZ5954 Electrical Characteristics (TA = 25oC, VCC = 12V, PVCC1 = PVCC2 = 5V, VBIAS = 2.5V, RL1 = RL2 = RL3 = RL4 = 8Ω, RD = 0.5Ω, CFC=CTK = 100pF, unless otherwise specified.) Parameter Symbol Quiescent Current ΙCC Standby Current ΙST Test Conditions Min Standby-on Voltage VSTON All channels off 0 Standby-off Voltage VSTOFF All channels on 2.0 Typ Max Unit 18 27 mA 0.5 mA 0.5 V V Actuator Driver Output Offset Current IOO Maximum Output Amplitude VOM VIN = VBIAS ± 1.5V 3.6 3.9 gm VIN = VBIAS ± 0.2V 1.3 1.55 VBIAS = 6V VCC = PVCC1 = 5V Transmission Gain -6 6 mA V 1.7 A/V -0.3 11.0 V -0.3 4.0 V Sled Motor Driver/Pre Op Amp Common Input Voltage Range VICM IIB 14 300 nA Output Low Level Voltage VOL 0.1 0.3 V Output Source Current ISO 0.3 Output Sink Current ISI 1 Output Offset Voltage VOOFSL -100 Maximum Output Voltage VOMSL VIN=VBIAS ± 1.5V 7.5 8.8 Closed-loop Voltage Gain GVSL VIN=VBIAS ± 0.2V 18.0 20.0 VOOFLD VIN = VBIAS ± 0.2V -50 VIN = VBIAS ± 2.0V 7.5 8.7 V VOMLD VIN = VBIAS ± 1.5V VCC= PVCC1 = 5V 3.6 3.9 V GVLD VIN = VBIAS ± 0.2V 13.5 15.5 17.5 dB ∆GVLD VIN = VBIAS ± 0.2V 0 1 2 dB Input Bias Current 0.58 mA mA Sled Motor Driver 100 mV V 22.0 dB 50 mV Loading Motor Driver Output Offset Voltage Maximum Output Voltage Closed-loop Voltage Gain Gain Error by Polarity Apr. 2005 Rev. 1. 1 BCD Semiconductor Manufacturing Limited 6 Data Sheet 4-CHANNEL BTL MOTOR DRIVER FOR CD-ROM/DVD AZ5954 Test Circuit 100µH RL2 RD V2 100pF VST VBIAS 28 27 26 25 24 23 22 21 20 A IO2 + VIN4 VIN2 - RL4 100µF 16V 19 VO2 VO4 18 + + - 17 16 15 VOLD- VOLD+ VOTK- VOTK+ AZ5954 VOSL- VOSL+ VOFC- VOFC+ 1 2 3 VIN1 4 5 6 7 8 9 10 11 12 - VIN3 A ICC V VOP 13 14 - + VO3 + VO1 + 100µF 16V 100pF A RL3 RD V1 IO1 RL1 100µH Figure 4. Test Circuit of AZ5954 Apr. 2005 Rev. 1. 1 BCD Semiconductor Manufacturing Limited 7 Data Sheet 4-CHANNEL BTL MOTOR DRIVER FOR CD-ROM/DVD AZ5954 Typical Performance Characteristics 12 2 VCC=12V PVCC1=PVCC2=5V VBIAS=2.5V 0 -2 RL=4Ω+100uH RL=8Ω+100uH RL=12Ω+100uH RL=20Ω+100uH -4 -0.8 -0.6 -0.4 VCC=12V PVCC1=PVCC2=5V VBIAS=2.5V 9 -0.2 0.0 0.2 0.4 0.6 6 Output Voltage: VO (V) Output Voltage: VO (V) 4 3 0 -3 RL=20Ω RL=12Ω RL=8Ω -6 -9 -12 0.8 -1.0 -0.5 Input Voltage: VIN (V) 0.0 0.5 1.0 Input Voltage: VIN (V) Figure 5. Driver I/O Characteristics (Focus and Tracking) Figure 6. Driver I/O Characteristics (Loading) 5 Output Voltage: VO (V) Op Amp Output Voltage: OP OUT (V) VCC=12V PVCC1=PVCC2=5V VBIAS=2.5V 4 2 0 RL=4Ω RL=8Ω RL=12Ω RL=20Ω -2 -4 -2.0 -1.5 -1.0 -0.5 0.0 0.5 1.0 1.5 VCC=5V 4 3 2 OP IN + OP OUT V 1 0 2.0 0 Input Voltage: VIN (V) 1 2 3 4 5 Op Amp Input Voltage: OP IN (V) Figure 7. Driver I/O Characteristics (Sled) Figure 8. Op Amp I/O Characteristics Apr. 2005 Rev. 1. 1 BCD Semiconductor Manufacturing Limited 8 Data Sheet 4-CHANNEL BTL MOTOR DRIVER FOR CD-ROM/DVD AZ5954 Typical Performance Characteristics (Continued) 180 60 10K 10µ g Gain: g (dB) 2.5V V IN 20K 100µ 0 20 0 Phase: θ (deg) 90 40 -90 θ VCC=12V PVCC=5V -20 10k -180 100k 1M 10M Frequency: f (Hz) Figure 9. Op Amp Phase-Frequency, AmplitudeFrequency Characteristics Apr. 2005 Rev. 1. 1 BCD Semiconductor Manufacturing Limited 9 Data Sheet 4-CHANNEL BTL MOTOR DRIVER FOR CD-ROM/DVD AZ5954 Typical Application µ-COM LOADING STANDBY VCENTER TRACKING FOCUS SLED DSP TRACKING COIL LOADING MOTOR 5V or 12V Rd M 28 27 26 25 24 23 22 21 20 19 18 17 16 15 8 9 10 11 12 13 14 AZ5954 1 2 3 4 5 6 7 12V M 5V or 12V SLED MOTOR Rd FOCUS COIL Figure 10. Typical Application of AZ5954 in DVD Player Apr. 2005 Rev. 1. 1 BCD Semiconductor Manufacturing Limited 10 Data Sheet 4-CHANNEL BTL MOTOR DRIVER FOR CD-ROM/DVD AZ5954 Application Information 1. 2. 3. 4. 5. 6. This IC has a built-in thermal shutdown circuit that mutes the output current when the chip temperature reached 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 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 on the inside of the package. Make sure to connect these to external GND. Apr. 2005 Rev. 1. 1 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 (0.15 Ω ± 0.05 Ω ) (Typ.). BCD Semiconductor Manufacturing Limited 11 Data Sheet 4-CHANNEL BTL MOTOR DRIVER FOR CD-ROM/DVD AZ5954 Mechanical Dimensions HSOP-28 Unit: mm(inch) 17.890(0.704) 18.190(0.716) 0.204(0.008) 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) 0o ~ 8 o 0.800(0.031) TYP 5.050(0.199) 5.250(0.207) 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) Apr. 2005 Rev. 1. 1 BCD Semiconductor Manufacturing Limited 12 http://www.bcdsemi.com BCD Semiconductor Corporation 3170 De La Cruz Blvd, Suite # 105 Santa Clara, CA 95054-2411, U.S.A Tel: +1-408-988 6388, Fax: +1-408-988 6386 Shanghai SIM-BCD Semiconductor Manufacturing Co., Ltd. 800 Yi Shan Road, Shanghai 200233, PRC Tel: +86-21-6485-1491, Fax: +86-21-5450-0008 Advanced Analog Circuits (Shanghai) Corporation 8F, B Zone, 900 Yi Shan Road, Shanghai 200233, PRC Tel: +86-21-6495 9539, Fax: +86-21-6485 9673 BCD Semiconductor (Taiwan) Company Limited Room 2210, 22nd Fl, 333, Keelung Road, Sec. 1, TaiPei (110), Taiwan Tel: +886-2-2758 6828, Fax: +886-2-2758 6892 IMPORTANT NOTICE BCD Semiconductor Manufacturing Limited reserves the right to make changes without further notice to any products or specifications herein. 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