AM5668

Data Sheet 5-CHANNEL MOTOR DRIVER FOR DVD PLAYER General Description 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 Features · · · · · · · 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 1 BCD Semiconductor Manufacturing Limited Data Sheet 5-CHANNEL MOTOR DRIVER FOR DVD PLAYER Pin Configuration M28 Package (HSOP-28) AM5668 VINFC OP2INOP2IN+ VINSL OP2OUT FWD REV 1 2 3 4 5 6 7 28 27 26 25 24 23 22 MUTE BIAS VINTK OP1IN+ OP1INVINSP GND (PGND) (PGND) VCC1 VOTRVOTR+ VOSL+ VOSLVOFCVOFC+ 8 9 10 11 12 13 14 21 20 19 18 17 16 15 VCTL OP1OUT VCC2 VOSPVOSP+ VOTKVOTK+ Figure 2. Pin Configuration of AM5668 (Top View) Mar. 2007 Rev. 1. 4 2 BCD Semiconductor Manufacturing Limited Data Sheet 5-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 OP2INOP2IN+ VINSL OP2OUT FWD REV VCC1 VOTRVOTR+ VOSL+ VOSLVOFCVOFC+ VOTK+ VOTKVOSP+ VOSPVCC2 OP1OUT VCTL GND VINSP OP1INOP1IN+ VINTK BIAS MUTE Input for focus driver Comparator 2 input (-) Comparator 2 input (+) Input for the sled driver Comparator 2 output Tray driver forward input Tray driver reverse input VCC for pre-driver block and power block of sled and tray Tray driver output (-) Tray driver output (+) Sled driver output (+) Sled driver output (-) Focus driver output (-) Focus driver output (+) Tracking driver output (+) Tracking driver output (-) Spindle driver output (+) Spindle driver output (-) VCC for power block of spindle, tracking and focus Comparator 1 output Speed control input of tray driver Ground Input for spindle driver Comparator 1 input (-) Comparator 1 input (+) Input for tracking driver Input for reference voltage Input for mute control Function AM5668 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 3 BCD Semiconductor Manufacturing Limited Data Sheet 5-CHANNEL MOTOR DRIVER FOR DVD PLAYER Functional Block Diagram AM5668 1 VINFC 17K THERMAL SHUT DOWN MUTE 28 MUTE 2 OP2IN- 42.5K 27 BIAS 3 OP2IN+ 42.5k 17k 26 VINTK 4 VINSL 25 OP1IN+ 5 OP2OUT 17K 24 OP1IN- 6 FWD 23 VINSP 7 REV 42.5K 22 GND PGND 17K PGND VCC1 VOTR- 8 VCC1 Pre-DRV 21 VCTL 9 10 TRAY DRIVER 25.5K 20 OP1OUT 19 VCC2 VOTR+ VCC2 11 VOSL+ 18 SLED DRIVER (4X) SPINDLE DRIVER (4X) VOSP- 12 VOSL- 17 VOSP+ 13 VOFC- 16 ACTUATOR DRIVER (6X) ACTUATOR DRIVER (6X) VOTK- 14 VOFC+ 15 VOTK+ VCC1 VCC2 VCC2 Figure 3. Functional Block Diagram of AM5668 Mar. 2007 Rev. 1. 4 4 BCD Semiconductor Manufacturing Limited Data Sheet 5-CHANNEL MOTOR DRIVER FOR DVD PLAYER Ordering Information AM5668 Circuit Type Package M28: HSOP-28 Temperature Range 0 to 70 ℃ Part Number Tin Lead AM5668M28 Lead Free AM5668M28-E1 Marking ID Tin Lead AM5668M28 Lead Free AM5668M28-E1 Packing Type Tube AM5668 E1: Lead Free Blank: Tin Lead Package 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 Supply Voltage Power Dissipation Operating Junction Temperature Storage Temperature ESD (Human Body Model) ESD (Machine Model) Symbol VCC1, 2 PD TJ TSTG ESD ESD Value 13.5 1.7 (Note 3, 4) 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: 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 Operating Temperature Symbol VCC1 VCC2 TA 0 Min 4.3 4.3 to VCC1 70 Max 13.2 Unit V V oC Mar. 2007 Rev. 1. 4 5 BCD Semiconductor Manufacturing Limited Data Sheet 5-CHANNEL MOTOR DRIVER FOR DVD PLAYER Electrical Characteristics (TA=25oC, VCC1=VCC2=5V, VBIAS=2.5V, CVCC1=CVCC2=0.1µF, unless otherwise specified.) Parameter Quiescent Current Mute ON Voltage Mute OFF Voltage Focus Driver Output Offset Voltage Maximum Output Voltage Closed-Loop Voltage Gain Tracking Driver Output Offset Voltage Maximum Output Voltage Closed-Loop Voltage Gain Spindle Motor Driver Output Offset Voltage Maximum Output Voltage Closed-Loop Voltage Gain Gain Error by Polarity Sled Motor Driver Output Offset Voltage Maximum Output Voltage Closed-Loop Voltage Gain Tray Motor Driver Output Saturation Voltage 1 VSAT1TR Upper + Lower saturation, IL=200mA 1.4 1.6 V VOOFSL VOMSL GVSL at 8Ω load VIN=VBIAS ± 0.2V -100 3.1 18.0 3.3 20.0 22.0 100 mV V dB VOOFSP VOMSP GVSP ∆GVSP at 8Ω load VIN=VBIAS ± 0.2V VIN=VBIAS ± 0.2V -50 3.1 13.3 0 3.3 15.5 1 17.5 2 50 mV V dB dB VOOFTK VOMTK GVTK at 10Ω load VIN=VBIAS ± 0.2V -50 3.1 3.4 23.5 50 mV V dB VOOFFC VOMFC GVFC at 10Ω load VIN=VBIAS ± 0.2V -50 3.1 3.4 23.5 50 mV V dB Symbol IQC VSTON VSTOFF No load 0 2.0 Conditions Min Typ 20 0.5 VCC1 Max Unit mA V V AM5668 Mar. 2007 Rev. 1. 4 6 BCD Semiconductor Manufacturing Limited Data Sheet 5-CHANNEL MOTOR DRIVER FOR DVD PLAYER Electrical Characteristics (Continued) Parameter Output Saturation Voltage between FWD and REV Output Saturation Voltage 2 Output Adjustable Gain on "H" Side Voltage Tray Motor Driver Input Logic High Level Input Voltage Low Level Input Voltage High Level Input Current Comparator Input Offset Voltage Input Common-Mode Voltage Range Voltage Gain Output Sink Current Saturation Voltage VIO VCM GV ISINK VSAT RL ≥ 15kΩ VOUT < 1.5V ISINK ≤ 2mA 0 80 6.0 250 500 3 VCC1 −1.5 mV V dB mA mV VIH VIL IIH VFWD=VREV=5V 2.0 0 180 VCC1 0.8 270 V V µA Symbol ∆VSAT1TR VSAT2TR GVTRH Conditions Output Saturation Voltage 1 between FWD and REV Upper + Lower saturation, IL=500mA "H" side output for input (VCTL=1V) 7.4 2.3 Min Typ Max 0.1 Unit V AM5668 2.5 V 9.2 11 dB Mar. 2007 Rev. 1. 4 7 BCD Semiconductor Manufacturing Limited Data Sheet 5-CHANNEL MOTOR DRIVER FOR DVD PLAYER Test Circuit AM5668 V28 1 V1 V27 2 V2 V26 3 V3 V25 4 V4 V24 V V5 V23 6 V6 7 V7 22 23 5 24 25 26 27 28 AM5668 CVCC1 V21 8 V8 V20 9 45 RL5 10 19 20 V V19 21 CVCC2 11 8 RL1 12 17 18 RL2 8 13 10 RL3 14 16 RL4 15 10 Figure 4. Test Circuit of AM5668 Mar. 2007 Rev. 1. 4 8 BCD Semiconductor Manufacturing Limited Data Sheet 5-CHANNEL MOTOR DRIVER FOR DVD PLAYER Typical Performance Characteristics AM5668 4 3 2 1 0 -1 -2 -3 -4 -0.3 4 Output Voltage: VO (V) Output Voltage: VO (V) VCC1=VCC2=5V VBIAS=2.5V RL=10Ω 3 2 1 0 -1 -2 -3 -4 -0.3 VCC1=VCC2=5V VBIAS=2.5V RL=10Ω -0.2 -0.1 0.0 0.1 0.2 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 3 2 1 0 -1 -2 -3 -4 -0.4 4 Output Voltage: VO (V) Output Voltage: VO (V) VCC1=VCC2=5V VBIAS=2.5V RL=8Ω 3 2 1 0 -1 -2 -3 -4 VCC1=VCC2=5V VBIAS=2.5V RL=8Ω -0.2 0.0 0.2 0.4 -0.6 -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 9 BCD Semiconductor Manufacturing Limited Data Sheet 5-CHANNEL MOTOR DRIVER FOR DVD PLAYER Typical Performance Characteristics (Continued) AM5668 2.0 1.6 Power Dissipation: PD (W) 1.2 0.8 0.4 0.0 0 50 100 O 150 Ambient Temperature: TA ( C) Figure 9. Power Dissipation Curve (Note 3) Mar. 2007 Rev. 1. 4 10 BCD Semiconductor Manufacturing Limited Data Sheet 5-CHANNEL MOTOR DRIVER FOR DVD PLAYER Typical Application µ-COM SPINDLE MUTE AM5668 SERVO TRACKING FOCUS Tray Voltage Control SLED FWD VREF REV SERVO SPIN+ SPIN- 5V M 19 18 17 TRACKING COIL 28 27 26 25 24 23 22 21 20 16 15 AM5668 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Figure 10. Typical Application of AM5668 in DVD Player Mar. 2007 Rev. 1. 4 11 SERVO SPIN- SPIN+ 5V M M FOCUS COIL BCD Semiconductor Manufacturing Limited Data Sheet 5-CHANNEL MOTOR DRIVER FOR DVD PLAYER Application Information 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). 6. Tray driver logic input: FWD (pin6) L L H H REV (pin7) L H L H VOTR+ (pin10) OPEN L H L VOTR(pin9) OPEN H L L Function Open mode Reverse mode Forward mode Brake mode AM5668 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. 4. Insert the bypass capacitor (about 0.1µF) between VCC pin and GND pin as close as possible to this chip. 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. "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 12 BCD Semiconductor Manufacturing Limited Data Sheet 5-CHANNEL MOTOR DRIVER FOR DVD PLAYER Mechanical Dimensions HSOP-28 Unit: mm(inch) AM5668 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 13 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. 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