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 From a synchronizing clock input, withdrawn on the secondary side of the isolation transformer, the IC generates a driving signal with set dead times with respect to the primary side PWM signal.

■ 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