Data Sheet 5-CHANNEL MOTOR DRIVER FOR DVD PLAYER General Description Features The AM5680 is a five-channel BTL driver IC for driving motors and actuators used in DVD player. It contains 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 package. AM5680 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 HSOP-28 Figure 1. Package Type of AM5680 Mar. 2007 Rev. 1. 3 BCD Semiconductor Manufacturing Limited 1 Data Sheet 5-CHANNEL MOTOR DRIVER FOR DVD PLAYER AM5680 Pin Configuration M28 Package (HSOP-28) VINFC 1 28 MUTE TRB_1 2 27 BIAS REGO2 3 26 VINTK VINSL 4 25 TRB_2 REGO1 5 24 RESET FWD 6 23 VINSP REV 7 22 GND (PGND) (PGND) VCC1 8 21 VCTL VOTR- 9 20 VCCD 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 AM5680 (Top View) Mar. 2007 Rev. 1. 3 BCD Semiconductor Manufacturing Limited 2 Data Sheet 5-CHANNEL MOTOR DRIVER FOR DVD PLAYER AM5680 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 VCC 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 VCC 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 system 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.) Mar. 2007 Rev. 1. 3 BCD Semiconductor Manufacturing Limited 3 Data Sheet 5-CHANNEL MOTOR DRIVER FOR DVD PLAYER AM5680 Functional Block Diagram VINFC MUTE THERMAL SHUT DOWN 1 28 MUTE 17k TRB_1 REGO2 2 27 42.5k 26 3 42.5k VINSL REGO1 VINTK 17k 4 25 5 BIAS 24 Voltage Detector TRB_2 RESET 17k FWD REV 23 6 17k 7 22 VINSP GND 42.5k PGND PGND Pre-DRV VCC1 VOTR- 8 21 VCTL VCC1 25.5k 9 20 VCCD 10 TRAY DRIVER 19 VOTR+ VCC2 VCC2 11 VOSL+ 12 VOSL- 18 SPINDLE DRIVER (4X) SLED DRIVER (4X) VOSP- 17 VOSP+ 16 13 VOFC- 14 VOFC+ ACTUATOR DRIVER (6X) ACTUATOR DRIVER (6X) VOTK- 15 VOTK+ VCC1 VCC2 VCC2 Figure 3. Functional Block Diagram of AM5680 Mar. 2007 Rev. 1. 3 BCD Semiconductor Manufacturing Limited 4 Data Sheet 5-CHANNEL MOTOR DRIVER FOR DVD PLAYER AM5680 Ordering Information - AM5680 Circuit Type E1: Lead Free Package M28: HSOP-28 Package Temperature Range HSOP-28 0 to 70oC Part Number Marking ID AM5680M28-E1 Packing Type AM5680M28-E1 Tube 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 8.8 V Power Dissipation PD 1.7 (Note 3) W Operating Junction Temperature TJ 150 oC Storage Temperature Range 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. Recommended Operating Conditions (TA=25oC) Parameter Power Supply Voltage Symbol Min Max Unit VCC1 4.3 8 V 70 oC VCC2 Operating Temperature V 4.3 to VCC1 0 TA Mar. 2007 Rev. 1. 3 BCD Semiconductor Manufacturing Limited 5 Data Sheet 5-CHANNEL MOTOR DRIVER FOR DVD PLAYER AM5680 Electrical Characteristics (Note 4) (TA=25oC, VCC1=VCC2=5V, VBIAS=1.65V, RL=10Ω/45Ω, 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 16 mA Focus Driver at 10Ω load 3.0 3.5 VIN=VBIAS±0.2V 21.5 23.5 V 25.5 dB 50 mV Tracking Driver Output Offset Voltage VOOFTK Maximum Output Voltage VOMTK Closed-loop Voltage Gain GVTK -50 at 10Ω load 3.0 3.5 VIN=VBIAS±0.2V 21.5 23.5 V 25.5 dB 100 mV Sled Driver Output Offset Voltage VOOFSL Maximum Output Voltage VOMSL Closed-loop Voltage Gain GVSL -100 at 10Ω load 3.0 3.5 VIN=VBIAS±0.2V 18.0 20.0 V 22.0 dB 50 mV Spindle Driver Output Offset Voltage VOOFSP Maximum Output Voltage VOMSP Closed-loop Voltage Gain -50 at 10Ω load 3.0 3.5 GVSP VIN=VBIAS±0.2V 13.5 15.5 17.5 dB ∆GVSP VIN=VBIAS±0.2V 0 1 2 dB Detecting Voltage VCCD RL=200Ω, VOL<0.4V 2.75 2.9 3.05 V Low Level Output Voltage VOL 0.4 V Gain Error by Polarity V Voltage Detector Hysteresis Voltage 200 mV Detecting Voltage Temperature Coefficient 0.01 %/oC Mar. 2007 Rev. 1. 3 BCD Semiconductor Manufacturing Limited 6 Data Sheet 5-CHANNEL MOTOR DRIVER FOR DVD PLAYER AM5680 Electrical Characteristics (Continued, Note 4) (TA=25oC, VCC1=VCC2=5V, VBIAS=1.65V, RL=10Ω/45Ω, unless otherwise specified.) Parameter Symbol Conditions Min Typ Max Unit Upper+Lower saturation, IL=200mA 0.7 1.3 1.6 V 0.1 V Tray Driver Output Saturation Voltage 1 VSAT1TR Output Saturation Voltage between FWD and REV ∆VSAT1TR Output Saturation Voltage 1 between FWD and REV -0.1 Output Saturation Voltage 2 VSAT2TR Upper+Lower saturation, IL=500mA 1.0 2.1 2.5 V Output Adjustable Gain on "H" Side Voltage GVTRH at 45Ω load, VVCTL=1V 7.4 9.2 11 dB Tray Motor Driver Input Logic High Level Input Voltage VIH 1.5 VCC1 V Low Level Input Voltage VIL -0.3 0.5 V High Level Input Current IIH 270 µA 4.0 V VFWD=VREV=5V 110 Regulator (Note 5) Output Voltage VREG IL=500mA 1.5 Output Load Differential ∆VRL IL=0 to 500mA -50 0 50 mV VCC=4.3 to 8V, IL=500mA -25 0 25 mV Power Supply Voltage Differential ∆VVCC Note 4: This device is not designed for protection against radioactive rays. Note 5: It is based on 8550D PNP transistor. Mar. 2007 Rev. 1. 3 BCD Semiconductor Manufacturing Limited 7 Data Sheet 5-CHANNEL MOTOR DRIVER FOR DVD PLAYER AM5680 4 4 3 3 2 2 Output Voltage (V) Output Voltage (V) Typical Performance Characteristics 1 0 -1 VCC1=VCC2=5V -2 VBIAS=1.65V -3 1 0 -1 VCC1=VCC2=5V -2 VBIAS=1.65V -3 RL=10Ω RL=10Ω -4 -4 -0.6 -0.4 -0.2 0.0 0.2 0.4 -0.6 0.6 -0.4 -0.2 0.0 0.2 0.4 0.6 Input Voltage (V) Input Voltage (V) Figure 5. Tracking Driver Characteristics (Note 6) Figure 4. Focus Driver Characteristics (Note 6) 4 4 3 3 Output Voltage (V) Output Voltage (V) 2 2 1 0 -1 VBIAS=1.65V -3 0 -1 VCC1=VCC2=5V -2 VCC1=VCC2=5V -2 1 VBIAS=1.65V -3 RL=10Ω RL=10Ω -4 -4 -0.6 -0.4 -0.2 0.0 0.2 0.4 -1.0 0.6 -0.5 0.0 0.5 1.0 Input Voltage (V) Input Voltage (V) Figure 7. Spindle Driver Characteristics (Note 6) Figure 6. Sled Driver Characteristics (Note 6) Note 6: Input voltage herein is referenced to Bias pin voltage. Mar. 2007 Rev. 1. 3 BCD Semiconductor Manufacturing Limited 8 Data Sheet 5-CHANNEL MOTOR DRIVER FOR DVD PLAYER AM5680 Typical Performance Characteristics (Continued) 2.0 4.0 1.6 3.0 Power Dissipation (W) Output Voltage (V) 3.5 2.5 2.0 1.5 VCC1=VCC2=5V 1.0 VBIAS=1.65V 0.8 0.4 RL=45Ω 0.5 1.2 0.0 0.0 -0.2 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 0 2.2 50 100 150 O Ambient Temperature ( C) VCTL Input Voltage (V) Figure 8. Tray Channel Output Voltage vs. VCTL Input Voltage Mar. 2007 Rev. 1. 3 Figure 9. Power Dissipation Curve (Note 3) BCD Semiconductor Manufacturing Limited 9 Data Sheet 5-CHANNEL MOTOR DRIVER FOR DVD PLAYER AM5680 Typical Application µ -COM RESET SPINDLE MUTE Tray Voltage Control FWD REV VREF TRACKING FOCUS SLED SERVO VCC=5V 3.3V 3.3V VCC=5V 4.7K 0.1µF 28 27 26 25 24 23 22 M TRACKING COIL 21 20 19 18 17 16 15 8 9 10 11 12 13 14 AM5680 1 2 3 4 5 6 7 10K 0.1µF M 16.4K 47µF VCC=5V ADJ 3.3V REGOUT ADJ 1.8V REGOUT 4.4K M FOCUS COIL 10K VCC=5V 47µF Figure 10. Typical Application of AM5680 in DVD Player Mar. 2007 Rev. 1. 3 BCD Semiconductor Manufacturing Limited 10 Data Sheet 5-CHANNEL MOTOR DRIVER FOR DVD PLAYER AM5680 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 30oC (Typ), so the circuit will start up again when the chip temperature falls to 145oC (Typ). 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. 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. "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. 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. 7. For 3.3V I/O system, if voltage applied to VCCD (pin 20) is lower than detector 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. 4. Insert the bypass capacitor (about 0.1µF) 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: 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 Mar. 2007 Rev. 1. 3 BCD Semiconductor Manufacturing Limited 11 Data Sheet 5-CHANNEL MOTOR DRIVER FOR DVD PLAYER AM5680 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. 3 BCD Semiconductor Manufacturing Limited 12 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. 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