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L6565 - QUASI-RESONANT SMPS CONTROLLER

General Description

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.

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The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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L6565 QUASI-RESONANT SMPS CONTROLLER s QUASI-RESONANT (QR) ZERO-VOLTAGESWITCHING (ZVS) TOPOLOGY s LINE FEED FORWARD TO DELIVER CONSTANT POWER vs. MAINS CHANGE s FREQUENCY FOLDBACK FOR OPTIMUM STANDBY EFFICIENCY s PULSE-BY-PULSE & HICCUP-MODE OCP s ULTRA-LOW START-UP (< 70µA) AND QUIESCENT CURRENT (< 3.5mA) s DISABLE FUNCTION (ON/OFF CONTROL) s 1% PRECISION (@ Tj = 25°C) INTERNAL REFERENCE VOLTAGE s ±400mA TOTEM POLE GATE DRIVER WITH UVLO PULL-DOWN s BLUE ANGEL, ENERGY STAR, ENERGY 2000 COMPLIANT APPLICATIONS s TV/MONITOR SMPS s AC-DC ADAPTERS/CHARGERS s DIGITAL CONSUMER s PRINTERS, FAX MACHINES, PHOTOCOPIERS AND SCANNERS BLOCK DIAGRAM 1 INV 2.