Product Specification Synchronous Rectifier Controller for Flyback Converter SG6203 FEATURES „ „ „ „ „ „ „ „ Low operation current (1.
7mA) One resistor for timing setting Internal automatic tracking for optimum dead time No reverse energy flow at light load Best suited for primary green-mode PWM IC Wide supply voltage range from 6V to 20V Built-in 18V Zener diode Optional current sensing: - Current shunt - RC network for better efficiency DESCRIPTION The SG6203 is designed to control and drive the synchronous rectifier for the flyback converter.
The synchronous signal of the primary switch is obtained by a single diode connected between the transformer secondary winding and the SG6203.
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