Data Sheet 5-CHANNEL MOTOR DRIVER FOR DVD PLAYER General Description Features The AM5668 is a five-channel BTL driver IC, in which four channels are voltage-type BTL drivers for tracking and focus actuators, sled and spindle motors, the other one channel is DC motor driver for tray which supports forward/reverse control. This IC also contains two general-purpose independent precise voltage comparators. · · · · · · · The AM5668 is available in standard HSOP-28 package. AM5668 4-Channel DC Motor BTL Driver 1-Channel Forward/Reverse Control DC Motor BTL Driver Two Built-in Comparators Built-in Level Shift Circuit Built-in Mute Mode Built-in Thermal Shutdown Circuit Operating Voltage: 4.3V to 13.2V Application · DVD Player HSOP-28 Figure 1. Package Type of AM5668 Mar. 2007 Rev. 1. 4 BCD Semiconductor Manufacturing Limited 1 Data Sheet 5-CHANNEL MOTOR DRIVER FOR DVD PLAYER AM5668 Pin Configuration M28 Package (HSOP-28) VINFC 1 28 MUTE OP2IN- 2 27 BIAS OP2IN+ 3 26 VINTK VINSL 4 25 OP1IN+ 5 24 OP1IN- FWD 6 23 VINSP REV 7 22 GND OP2OUT (PGND) (PGND) VCC1 8 21 VCTL VOTR- 9 20 OP1OUT VOTR+ 10 19 VCC2 VOSL+ 11 18 VOSP- VOSL- 12 17 VOSP+ VOFC- 13 16 VOTK- VOFC+ 14 15 VOTK+ Figure 2. Pin Configuration of AM5668 (Top View) Mar. 2007 Rev. 1. 4 BCD Semiconductor Manufacturing Limited 2 Data Sheet 5-CHANNEL MOTOR DRIVER FOR DVD PLAYER AM5668 Pin Description (Note 1) Pin Number Pin Name Function 1 VINFC Input for focus driver 2 OP2IN- Comparator 2 input (-) 3 OP2IN+ Comparator 2 input (+) 4 VINSL Input for the sled driver 5 OP2OUT 6 FWD Tray driver forward input 7 REV Tray driver reverse input 8 VCC1 VCC for pre-driver 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 20 OP1OUT 21 VCTL Speed control input of tray driver 22 GND Ground 23 VINSP Input for spindle driver 24 OP1IN- Comparator 1 input (-) 25 OP1IN+ Comparator 1 input (+) 26 VINTK Input for tracking driver 27 BIAS Input for reference voltage 28 MUTE Input for mute control Comparator 2 output VCC for power block of spindle, tracking and focus Comparator 1 output 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.) Mar. 2007 Rev. 1. 4 BCD Semiconductor Manufacturing Limited 3 Data Sheet 5-CHANNEL MOTOR DRIVER FOR DVD PLAYER AM5668 Functional Block Diagram MUTE THERMAL SHUT DOWN 1 28 MUTE VINFC 17K 2 27 42.5K BIAS OP2IN- 26 3 VINTK OP2IN+ 42.5k 17k 25 4 OP1IN+ VINSL 24 5 OP1IN- OP2OUT 17K 23 6 FWD VINSP 22 7 REV GND 42.5K PGND VCC1 VOTR- PGND 17K Pre-DRV 8 21 VCTL VCC1 20 9 OP1OUT 10 TRAY DRIVER 25.5K 19 VOTR+ VCC2 VCC2 18 11 VOSL+ 12 VOSL- SLED DRIVER (4X) SPINDLE DRIVER (4X) 14 VOFC+ 17 VOSP+ 16 13 VOFC- VOSP- ACTUATOR DRIVER (6X) ACTUATOR DRIVER (6X) VCC1 VCC2 VOTK- 15 VOTK+ VCC2 Figure 3. Functional Block Diagram of AM5668 Mar. 2007 Rev. 1. 4 BCD Semiconductor Manufacturing Limited 4 Data Sheet 5-CHANNEL MOTOR DRIVER FOR DVD PLAYER AM5668 Ordering Information AM5668 E1: Lead Free Blank: Tin Lead Circuit Type Package M28: HSOP-28 Package Part Number Marking ID Temperature Range Tin Lead Lead Free Tin Lead Lead Free Packing Type 0 to 70 ℃ AM5668M28 AM5668M28-E1 AM5668M28 AM5668M28-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 (TA=25oC) (Note 2) Parameter Symbol Value Unit Supply Voltage VCC1, 2 13.5 V Power Dissipation PD 1.7 (Note 3, 4) W Operating Junction Temperature TJ 150 oC Storage Temperature TSTG -55 to 150 oC ESD (Human Body Model) ESD 2000 V ESD (Machine Model) ESD 200 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: a. When mounted on a 70mmx70mmx1.6mm glass epoxy board. b. Reduced by 13.6mW for each increase in TA of 1oC over 25oC. Note 4: Do not exceed PD and SOA and TJ=150oC values. Recommended Operating Conditions (TA=25oC) Parameter Supply Voltage Symbol Min Max Unit VCC1 4.3 13.2 V 70 oC 4.3 to VCC1 VCC2 Operating Temperature 0 TA Mar. 2007 Rev. 1. 4 V BCD Semiconductor Manufacturing Limited 5 Data Sheet 5-CHANNEL MOTOR DRIVER FOR DVD PLAYER AM5668 Electrical Characteristics (TA=25oC, VCC1=VCC2=5V, VBIAS=2.5V, CVCC1=CVCC2=0.1µF, unless otherwise specified.) Parameter Symbol Conditions Min Typ Max Unit Quiescent Current IQC Mute ON Voltage VSTON 0 0.5 V Mute OFF Voltage VSTOFF 2.0 VCC1 V Output Offset Voltage VOOFFC -50 50 mV Maximum Output Voltage VOMFC Closed-Loop Voltage Gain GVFC No load 20 mA Focus Driver at 10Ω load 3.1 VIN=VBIAS ± 0.2V 3.4 V 23.5 dB Tracking Driver Output Offset Voltage VOOFTK Maximum Output Voltage VOMTK Closed-Loop Voltage Gain GVTK -50 at 10Ω load 3.1 VIN=VBIAS ± 0.2V 50 mV 3.4 V 23.5 dB Spindle Motor Driver Output Offset Voltage VOOFSP Maximum Output Voltage VOMSP Closed-Loop Voltage Gain Gain Error by Polarity -50 50 mV at 8Ω load 3.1 3.3 V GVSP VIN=VBIAS ± 0.2V 13.3 15.5 17.5 dB ∆GVSP VIN=VBIAS ± 0.2V 0 1 2 dB 100 mV Sled Motor Driver Output Offset Voltage VOOFSL Maximum Output Voltage VOMSL Closed-Loop Voltage Gain GVSL -100 at 8Ω load 3.1 3.3 V VIN=VBIAS ± 0.2V 18.0 20.0 22.0 dB 1.4 1.6 V Tray Motor Driver Output Saturation Voltage 1 VSAT1TR Upper + Lower saturation, IL=200mA Mar. 2007 Rev. 1. 4 BCD Semiconductor Manufacturing Limited 6 Data Sheet 5-CHANNEL MOTOR DRIVER FOR DVD PLAYER AM5668 Electrical Characteristics (Continued) Parameter Symbol Conditions Output Saturation Voltage between FWD and REV ∆VSAT1TR Output Saturation Voltage 1 between FWD and REV Output Saturation Voltage 2 VSAT2TR Upper + Lower saturation, IL=500mA Output Adjustable Gain on "H" Side Voltage GVTRH "H" side output for input (VCTL=1V) Min 7.4 Typ Max Unit 0.1 V 2.3 2.5 V 9.2 11 dB Tray Motor Driver Input Logic High Level Input Voltage VIH 2.0 VCC1 V Low Level Input Voltage VIL 0 0.8 V High Level Input Current IIH 270 µA VFWD=VREV=5V 180 Comparator Input Offset Voltage VIO Input Common-Mode Voltage Range VCM Voltage Gain GV 3 VCC1 −1.5 0 RL ≥ 15kΩ 80 V dB Output Sink Current ISINK VOUT < 1.5V 6.0 Saturation Voltage VSAT ISINK ≤ 2mA 250 Mar. 2007 Rev. 1. 4 mV mA 500 mV BCD Semiconductor Manufacturing Limited 7 Data Sheet 5-CHANNEL MOTOR DRIVER FOR DVD PLAYER AM5668 Test Circuit V28 1 28 2 27 3 26 4 25 5 24 6 23 7 22 V1 V27 V2 V26 V3 V25 V4 V24 V V5 V23 V6 AM5668 V7 CVCC1 V21 8 21 9 20 10 19 11 18 12 17 13 16 14 15 V8 V20 45 V RL5 V19 CVCC2 8 10 RL1 RL3 RL2 8 RL4 10 Figure 4. Test Circuit of AM5668 Mar. 2007 Rev. 1. 4 BCD Semiconductor Manufacturing Limited 8 Data Sheet 5-CHANNEL MOTOR DRIVER FOR DVD PLAYER AM5668 Typical Performance Characteristics 4 4 Output Voltage: VO (V) Output Voltage: VO (V) 2 1 0 -1 -2 2 1 0 -1 -2 -3 -3 -4 -0.3 -0.2 -0.1 0.0 0.1 0.2 -4 -0.3 0.3 -0.2 -0.1 0.0 0.1 0.2 0.3 Input Voltage: VIN (V) Input Voltage: VIN (V) Figure 5. Focus Driver Characteristics (Note 5) Figure 6. Tracking Driver Characteristics (Note 5) 4 4 3 3 VCC1=VCC2=5V VBIAS=2.5V RL=8Ω 2 Output Voltage: VO (V) Output Voltage: VO (V) VCC1=VCC2=5V VBIAS=2.5V RL=10Ω 3 VCC1=VCC2=5V VBIAS=2.5V RL=10Ω 3 1 0 -1 -2 VCC1=VCC2=5V VBIAS=2.5V RL=8Ω 2 1 0 -1 -2 -3 -3 -4 -0.4 -4 -0.2 0.0 0.2 -0.6 0.4 -0.4 -0.2 0.0 0.2 0.4 0.6 Input Voltage: VIN (V) Input Voltage: VIN (V) Figure 7. Sled Driver Characteristics (Note 5) Figure 8. Spindle Driver Characteristics (Note 5) Note 5: Input voltage herein is referenced to Bias pin voltage. Mar. 2007 Rev. 1. 4 BCD Semiconductor Manufacturing Limited 9 Data Sheet 5-CHANNEL MOTOR DRIVER FOR DVD PLAYER AM5668 Typical Performance Characteristics (Continued) 2.0 Power Dissipation: PD (W) 1.6 1.2 0.8 0.4 0.0 0 50 100 150 O Ambient Temperature: TA ( C) Figure 9. Power Dissipation Curve (Note 3) Mar. 2007 Rev. 1. 4 BCD Semiconductor Manufacturing Limited 10 Data Sheet 5-CHANNEL MOTOR DRIVER FOR DVD PLAYER AM5668 Typical Application µ-COM SERVO SPINDLE MUTE Tray Voltage Control FWD REV SPIN- VREF SPIN+ TRACKING FOCUS SLED SERVO M 5V 28 27 26 25 24 23 22 TRACKING COIL 21 20 19 18 17 16 15 8 9 10 11 12 13 14 AM5668 4 5 6 7 5V SERVO 3 SPIN+ 2 SPIN- 1 M M FOCUS COIL Figure 10. Typical Application of AM5668 in DVD Player Mar. 2007 Rev. 1. 4 BCD Semiconductor Manufacturing Limited 11 Data Sheet 5-CHANNEL MOTOR DRIVER FOR DVD PLAYER AM5668 Application Information 6. Tray driver logic input: 1. The built-in thermal shutdown circuit mutes the output current when the chip temperature reaches 175oC (Typ). The hysteresis is set to 25oC (Typ), so the circuit will start up again when the chip temperature falls to 150oC (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 voltage 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. FWD (pin6) REV (pin7) VOTR+ (pin10) VOTR(pin9) Function L L OPEN OPEN Open mode L H L H Reverse mode H L H L Forward mode H H L L Brake mode 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. We recommend time period for open longer than 10msec. 4. Insert the bypass capacitor (about 0.1µF) between VCC pin and GND pin as close as possible to this chip. "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. 5. Heat dissipation fins are attached to the GND on the inside of the package. Make sure to connect them to the external GND. Mar. 2007 Rev. 1. 4 BCD Semiconductor Manufacturing Limited 12 Data Sheet 5-CHANNEL MOTOR DRIVER FOR DVD PLAYER AM5668 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) Mar. 2007 Rev. 1. 4 BCD Semiconductor Manufacturing Limited 13 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 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 - 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