CMD4508

CMD4508 5-CH BTL Driver for DVD Player Features 2-CH BTL driver 2-CH BTL driver with current feedback 1-CH forward/reverse control DC motor Built-in motor speed control circuit Built-in TSD (thermal shut down) circuit Built-in mute mode Operating supply voltage(4.5V~13.2V) Descriptions The CMD4508 is a 5-CH motor driver for CD-p/VCD/DVD systems. It is composed of 2-CH BTL driver, 2-CH driver with current feedback and 1-CH forward/reverse control DC motor driver. Internal Block Diagram MUTE BIAS VINTK T RB 2 NC VINLD GND VCTL NC VCC2 VOLD- VOLD+ VOTK- VOTK+ 28 27 26 25 24 23 22 GND PGND 21 20 19 VCC2 18 17 16 15 MUTE 10K 15K 1 0K Thermal Shut down +25K 25K + + 10K 1 VINFC 2 TR B 1 3 R EGO2 VINSL+ REGO1 FWD * All specs and applications shown above subject to change without prior notice. 1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN Email: server@ceramate.com.tw Tel:886-3-3214525 Http: www.ceramate.com.tw Page 1 of 6 Rev 1.0 Dec. 15,2004 Fax:886-3-3521052 -+ + Spindle Driver Actuator Driver VCC2 VCC2 VCC1 + 25K Sled Driver Pre-DR V Actuator Driver TRAY DRIVER - 10K PGND VCC1 4 5 6 7 REV 8 VCC1 9 10 11 12 13 14 VOTR- V OTR+ V OSL+ VOSL- V OFC- V OFC+ CMD4508 5-CH BTL Driver for DVD Player Pin Assignments Pin Definitions NO 1 2 3 4 5 6 7 8 9 10 11 12 13 14 SYMBOL VINFC TRB 1 REGO2 VINSL+ REGO1 FWD REV Vcc1 VOTPVOTR+ VOSL+ VOSLVOFCVOFC+ FUNCTION Input for focus driver Connect to external transistor base Regulator voltage output, connect to external transistor collector Input for the sled driver Regulator voltage output, connect to external transistor collector Tray driver forward input Tray driver reverse input Vcc for pre-drive 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 (+) NO 15 16 17 18 19 20 21 22 23 24 25 26 27 28 SYMBOL VOTK+ VOTKVOLD+ VOLDVcc2 NC VCTL GND VINLD NC TRB 2 VINTK BIAS MUTE FUNCTION Tracking driver output (+) Tracking driver output (-) Spindle driver output (+) Spindle driver output (-) Vcc for power block of spindle, tracking and focus No connection Speed control input of tray driver Ground Input for spindle driver No connection Connect to external transistor base Input for tracking driver Input for reference voltage Input for mute control * All specs and applications shown above subject to change without prior notice. 1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN Email: server@ceramate.com.tw Tel:886-3-3214525 Http: www.ceramate.com.tw Page 2 of 6 Rev 1.0 Dec. 15,2004 Fax:886-3-3521052 CMD4508 5-CH BTL Driver for DVD Player Absolute Maximum Rating(Ta=25℃) CHARACTERISTICS Supply voltage Power dissipation Operate Temp range Storage Temp range Note: 1. When mounted on 50mm x 50mm x 1mm PCB ( Phenolic resin material). 2. Power dissipation reduces 20mW/℃for using above Ta=25℃. 3. Do not exceed Pd and SOA SYMBOL Vcc1 Vcc2 Pd Topr Tstg LIMITS 13.5 *1.7 -35~+85 -55~+150 UNIT V W ℃ ℃ Power Dissipation Curve Power Dissipation (mW) 3 2 1 0 25 50 75 100 125 150 175 Ambient Temperature ( ) Recommended Operating Conditions CHARACTERISTICS Supply voltage SYMBOL Vcc1 Vcc2 LIMITS 4.3~13.2 4.3~Vcc1 UNIT V V * All specs and applications shown above subject to change without prior notice. 1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN Email: server@ceramate.com.tw Tel:886-3-3214525 Http: www.ceramate.com.tw Page 3 of 6 Rev 1.0 Dec. 15,2004 Fax:886-3-3521052 CMD4508 5-CH BTL Driver for DVD Player Electrical Characteristics (VCC1=8V, VCC2=5V, BIAS=2.5V, f=1kHz, RL=8Ω, RS=0.5Ω, Ta=25℃ unless otherwise specified) Characteristics Quiescent current Voltage for mute ON Voltage for mute OFF Symbol Icc Vston Vstoff Voo Vom Gv Conditions Min 0 2.0 - Limit Typ. Max 30 4.0 23.5 0.5 5 +50 25.5 Unit mA V V mV V dB [Actuator Part] Output offset voltage Maximum output voltage Voltage gain @10ΩLoad VIN=BIAS+0.2Vpp ac @1KHz 3.6 21.5 [Sled Part] Output offset voltage Maximum output voltage Closed loop voltage gain Voofsl Vomsl Gvsl @20ΩLoad VIN=BIAS+0.2Vpp ac @1KHz 7.5 18 9.0 20 +100 22 mV V dB [Spindle Part] Output offset voltage Maximum output voltage Voltage gain Gain error by polarity Voofld Vomax Gvld △Gvld @8ΩLoad VIN=BIAS+0.2Vpp ac @1KHz VIN=BIAS+0.2Vpp ac @1KHz 13.3 0 3.5 15.5 1 +50 17.5 2 mV V dB dB [Tray Driver Part] Output saturation voltage 1 Output saturation voltage between F&R Output saturation voltage 2 Output adjustable gain on “H” side voltage High level input voltage Low level input voltage High level input current Vsat1 △Vsat1 Vsat2 VvtrH VIH VIL IIH VFWD=VREV=5V Upper + Lower saturation, IL=200mA Output saturation voltage 1 between FWD and REV Upper + Lower saturation, IL=500mA VCTL=2V 0.7 1.0 7.4 1.5 -0.3 1.1 1.55 9.2 180 1.5 0.1 2.2 11 Vcc 0.5 270 V V V dB V V µA [Regulator] Output voltage Output load differential Power supply voltage differential Vreg ︿VRL ︿VVCC IL=500mA IL=500mA (Vcc=4.5~8V) IL=500mA 1.5 -50 -25 0 0 4.0 50 25 V mV mV * All specs and applications shown above subject to change without prior notice. 1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN Email: server@ceramate.com.tw Tel:886-3-3214525 Http: www.ceramate.com.tw Page 4 of 6 Rev 1.0 Dec. 15,2004 Fax:886-3-3521052 CMD4508 5-CH BTL Driver for DVD Player Application Circuit 5V ADJ 2.5V REGOUT Spindle Motor Tray Voltage Control NC NC Tracking Coil 5V/12V 28 27 26 25 24 23 22 GND 21 PGND 20 19 18 17 16 15 VCC2 15K MUTE 10K Thermal Shun Down +25K 25K + + 10K 5V 1 2 3 16.4K 47uF Tacking Vcenter * All specs and applications shown above subject to change without prior notice. 1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN Email: server@ceramate.com.tw Tel:886-3-3214525 Http: www.ceramate.com.tw Page 5 of 6 Rev 1.0 Dec. 15,2004 Fax:886-3-3521052 -+ 1 0K + Spindle Driver Actuator Driver VCC2 VCC2 VCC1 + 25K Pre-DRV Sled Driver TRAY DRIVER Actuator Driver - 10K PGND VCC1 4 5 6 7 8 12V 9 10 11 12 13 14 Focus Coil 10K Motor Loading Sled Motor Focus Sled FWD REV MUTE Spindle SERVO U-COM CMD4508 5-CH BTL Driver for DVD Player Mechanical Dimensions Package: HSOP-28 CMD4508 Unit: mm * All specs and applications shown above subject to change without prior notice. 1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN Email: server@ceramate.com.tw Tel:886-3-3214525 Http: www.ceramate.com.tw Page 6 of 6 Rev 1.0 Dec. 15,2004 Fax:886-3-3521052