L6565D SOP8

IC L6565D SMD

QUASI-RESONANT SMPS CONTROLLER

The L6565 is a current-mode primary controller IC, specifically designed to build offline Quasi-resonant ZVS (Zero Voltage Switching at switch turn-on) flyback converters. Quasi-resonant operation is achieved by means of a transformer demagnetization sensing input that triggers MOSFET's turn-on

■ QUASI-RESONANT (QR) ZERO-VOLTAGESWITCHING (ZVS) TOPOLOGY ■ LINE FEED FORWARD TO DELIVER CONSTANT POWER vs. MAINS CHANGE ■ FREQUENCY FOLDBACK FOR OPTIMUM STANDBY EFFICIENCY ■ PULSE-BY-PULSE & HICCUP-MODE OCP ■ ULTRA-LOW START-UP (< 70µA) AND QUIESCENT CURRENT (< 3.5mA) ■ DISABLE FUNCTION (ON/OFF CONTROL) ■ 1% PRECISION (@ Tj = 25°C) INTERNAL REFERENCE VOLTAGE ■ ±400mA TOTEM POLE GATE DRIVER WITH UVLO PULL-DOWN ■ BLUE ANGEL, ENERGY STAR, ENERGY 2000 COMPLIANT APPLICATIONS ■ TV/MONITOR SMPS ■ AC-DC ADAPTERS/CHARGERS ■ DIGITAL CONSUMER ■ PRINTERS, FAX MACHINES, PHOTOCOPIERS AND SCANNERS