AT5658 AIMTRON | Alldatasheet

Document overview

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Technical content

Features

  • External resistor allows gain adjustment
  • Built in general-purpose OP-amp
  • Built in mute function
  • Built in 5V regulator.(with external PNP Tr.)
  • Built in thermal shutdown circuit
  • Operating range 6~13.2V

Applications

  • Compact disk player (CDP)
  • Video compact disk player (VCD)
  • Automotive compact disk player General Description The AT5658 is a 4-ch BTL driver for driving tracking actuator, focus actuator, sled motor and loading motor of CD/CD-ROM/DVD system, and can also drive spindle motor of CD system. With built-in 5V regulator and general-purpose op amp, it support a variety of application.

Preliminary Product Information 4 - c h M o t o r D r i v e r f o r C D / V C D P l a y e r Tel: 886-3-563-0878 WWW: http://www.aimtron.com.tw Fax: 886-3-563-0879 Email: service@aimtron.com.tw Pin Configuration

Ordering Information

Part number Package Marking AT5658H 28-pin HSOP AT5658H Pin Description Pin No. Symbol Descript Pin No Symbol Descript 1 DO1.1 CH1output (-) 15 OPIN(-) Op-amp input (-) 2 DO1.2 CH1 output (+) 16 OPIN(+) Op-amp input (+) 3 DI1.1 CH1 input 1 17 DO3.1 CH3 output (-) 4 DI1.2 CH1 input 2 18 DO3.2 CH3 output (+) 5 REG Regulator base 19 DI3.1 CH3 input 1 6 REO Regulator output, 5V 20 DI3.2 CH3 input 2

7 MUTE Mute 21 VCC1 Supply voltage 1

8 GND1 Ground 1 22 VCC2 Supply V oltage 2

9 DI2.1 CH2 input 1 23 VREF CH bias input 10 DI2.2 CH2 input 2 24 DI4.1 CH4 input 1 11 DO2.1 CH2 output (+) 25 DI4.2 CH4 input 2 12 DO2.2 CH2 output (-) 26 DO4.1 CH4 output (+) 13 GND2 Ground 2 27 DO4.2 CH4 output (-)

14 OPOUT Op-amp output 28 GND3 Ground 3

Preliminary Product Information 4 - c h M o t o r D r i v e r f o r C D / V C D P l a y e r Tel: 886-3-563-0878 WWW: http://www.aimtron.com.tw Fax: 886-3-563-0879 Email: service@aimtron.com.tw Absolute Maximum Ratings (Ta=+25 0C Parameter Symbol Limits Unit Maximum supply voltage V CCMAX 13.5 V Power dissipation P D 1.7 *1 W Storage temperature T STG -55~+150 ℃ NOTE:*1 1. Use base condition:100x100mm, t=1.6mm, copper leaf 50%, glass epoxy mounting. 2. Derating is done at 13.6mW/°C for operation above Ta=25°C Recommended Operating Conditions (Ta=+250C) ValuesParameter Symbol Min. Typ. Max. Unit Operatong supply voltage Vcc 5.5 － 13.2 V Operational voltage T OPR -35 － +85 ℃ Power Dissipation (Ta = 25oC)

Preliminary Product Information 4 - c h M o t o r D r i v e r f o r C D / V C D P l a y e r Tel: 886-3-563-0878 WWW: http://www.aimtron.com.tw Fax: 886-3-563-0879 Email: service@aimtron.com.tw

Electrical Characteristics

(unless otherwise noted, Ta=25℃, Vcc1 =Vcc2=8V, RL=8Ω, and f=1kHz ) ValuesParameter Symbol Condition Min. Typ. Max. Unit Quiescent circuit current I CCQ Under no-load 5.5 8.0 10.5 mA Output voltage offset V OO -- -40 -- 40 mV Output voltage "H" V OHD -- 5.2 5.6 -- V Output voltage "L" V OLD -- -- 1.3 1.55 V Gain (Close circuit) G VC VIN=0.1Vrms, f=1kHz 7.0 8.0 9.0 dB Ripple rejection RR V IN=0.1Vrms, f=100Hz -- 60 -- dB Slew rate SR VOUT=3Vp–p square wave, f=100kHz -- 2.0 -- V/µS BTL Driver Mute-off voltage V MOFF -- 2.0 -- -- V Output voltage V REG IL=100mA 4.75 5.0 5.25 V Load regulation ∆VRL IL=0~200mA -40 0 10 mVRegulator Line regulation ∆VCC VCC=6~9V, IL=100mA -10 0 25 mV Offset voltage V OFOP -- -5 0 5 mV Input bias current I BOP -- -- 20 300 nA "H" level output voltage V OHOP -- 6.0 -- -- V "L" level output voltage V OLOP -- -- -- 1.8 V Output drive current (sink) ISINK 50Ω, at VCC 10 50 -- mA Output drive current (source) ISOURCE 50Ω, at ground 10 40 -- mA Voltage gain (open circuit) GVO VIN=75dBV, f=1kHz -- 78 -- dB Slew rate SR OP VOUT=4Vp-p square wave, f=100kHz -- 1 -- V/µS Ripple rejection RR OP VIN=-20dBV,f=100kHz -- 65 -- dB Op-amp Common mode rejection ratio CMRR V IN=-20dBV, f=1kHz 70 84 -- dB

Preliminary Product Information 4 - c h M o t o r D r i v e r f o r C D / V C D P l a y e r Tel: 886-3-563-0878 WWW: http://www.aimtron.com.tw Fax: 886-3-563-0879 Email: service@aimtron.com.tw

Application Information

  1. Mute 2. Thermal Shutdown
  • The V REF BG is the output voltage of the band-gap-referenced biasing circuit and acts as the input voltage of the TSD circuit. The base-emitter voltage of the TR, Q11 is designed to turn-on at below voltage. VBE = VREF BG × R12 / (R11+R12) = 460mV
  • When the chip temperature rises up to 175°C, then the turn-on voltage of the Q11 would drop down to 460mV.(Hysteresis: 25℃), the Q11 would turn on so the output circuit will be muted. MUTE Mute circuit High(>2.0V) Turn-OFF Low(<0.5V) Turn-ON Open Turn-ON

Preliminary Product Information 4 - c h M o t o r D r i v e r f o r C D / V C D P l a y e r Tel: 886-3-563-0878 WWW: http://www.aimtron.com.tw Fax: 886-3-563-0879 Email: service@aimtron.com.tw 3. Regulator VOUT = VREF BG × 2 = 2.5 × 2 = 5V (R2 = R3) 4. Driver

  • The voltage, VREF, is the reference voltage given by the bias voltage of the pin 23. It can be reduced the total gain of BTL drive part, use additional series resistor into the input pin (pin3,10,19,25). It can also increase or decrease the voltage gain of the CH1,CH4 using adjustable pin (pin4,9,20,2424) by inserting an external series resistor. 22log(20)( R RdBGain ××≈

Preliminary Product Information 4 - c h M o t o r D r i v e r f o r C D / V C D P l a y e r Tel: 886-3-563-0878 WWW: http://www.aimtron.com.tw Fax: 886-3-563-0879 Email: service@aimtron.com.tw Input Ouput VO+ VO- Status VSIN>VBIN High Low Forward VSIN=VBIN VP VP Break VSIN<VBIN Low High Reverse 5. If the bias pin (23pin) drops below 1.4V, the output current is muted. Make sure that under normal operating conditions, this pin is at 1.6V or above. 6. If the power supply voltage drops below 4.5V typ., the drivers are turned OFF. When the voltage exceeds 4.7V typ., the drivers return to their previous state. Typical Application Circuit 1* VCCVP =

Preliminary Product Information 4 - c h M o t o r D r i v e r f o r C D / V C D P l a y e r Tel: 886-3-563-0878 WWW: http://www.aimtron.com.tw Fax: 886-3-563-0879 Email: service@aimtron.com.tw VCD Player Motor Driver Circuit Package Outlines (units:mm): HSOP-28