TDA4601

TDA4601 SWITCH-MODE POWER SUPPLY CONTROLLER . . . . LOW START-UP CURRENT DIRECT CONTROL OF SWITCHING TRANSISTOR COLLECTOR CURRENT PROPORTIONAL TO BASE-CURRENT INPUT REVERSE-GOING LINEAR OVERLOAD CHARACTERISTIC CURVE SIP9 (Plastic Package) ORDER CODE : TDA4601 DESCRIPTION The TDA4601 is a monolithic integrated circuit desi-gned to regulate and control the switching transistor in a switching power supply. Because of its wide operational range and high vol-tage stability even at high load changes, this IC can be used not only in TV receivers and video recorders but also in power supplies in Hi-Fi sets and active speakers. PIN CONNECTIONS SIP9 9 8 7 6 5 4 3 2 1 VIN PULSE OUTPUT DC OUTPUT GROUND EXTERNAL FUNCTION IC SIMULATION INPUT CONTROL ZERO CROSSING VREF VREF ZERO CROSSING INPUT CONTROL I C SIMULATION EXTERNAL FUNCTION GROUND DC OUTPUT PULSE OUTPUT V IN DIP 9+9 (Plastic Package) ORDER CODE : TDA4601B DIP 9+9 1 2 3 4 5 6 7 8 9 18 17 16 15 14 13 12 11 10 GROUND GROUND GROUND GROUND GROUND GROUND 4601-01.EPS - 4601-02.EPS GROUND GROUND GROUND September 1993 1/8 TDA4601 BLOCK DIAGRAM 9 7 BASE CURRENT AMPLIFIER TRIGGER START HOLD COUPLING -CCHARGING CIRCUIT BASE CURRENT SWITCH-OFF EXTERNAL BLOCKING FUNCTION 5 6 10 to 18 4601-03.EPS 8 START-UP CIRCUIT CONTROL AMPLIFIER STANDBY OPERATION VOLTAGE CONTROL OVERLOAD IDENTIFICATION CONTROL LOGIC REFERENCE VOLTAGE ZERO PASSAGE IDENTIFICATION COLLECTOR CURRENT SIMULATION 3 4 1 2 ABSOLUTE MAXIMUM RATINGS Symbol V9 V1 V2...