STSR3
SYNCHRONOUS RECTIFIERS SMART DRIVER FOR FLYBACK
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SUPPLY
VOLTAGE RANGE: 4V TO 5.
5V TYPICAL PEAK OUTPUT CURRENT: (SOURCE 2A, SINK 3.
5A) OPERATING FREQUENCY: 30 TO 750 KHz SMART TURN-OFF ANTICIPATION TIMING AUTOMATIC TURN OFF FOR DUTY CYCLE LESS THAN 14% POSSIBILITY TO OPERATE IN DISCONTINUOUS MODE
SO-8
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DESCRIPTION STSR3 Smart Driver IC provides a high current outputs to properly drive secondary Power
Mosfets used as Synchronous Rectifier in low output
voltage, high efficiency Flyback Converters.
From a synchronizing clock input, withdrawn on the secondary side of the isolation transformer, the IC generates a driving signal with set dead times with res...