st synchronous rectifier sstr3 smart driver is used for low output voltage, high efficiency flyback converters with high output current, smart turn-off anticipation timing, automatic turn-off and the ability to operate in discontinuous mode.
The STSR3 is a Smart Driver IC designed to drive secondary power MOSFETs used as synchronous rectifiers in low output voltage, high efficiency flyback converters. It generates driving signals with set dead times relative to the primary side PWM signal to prevent shoot-through conditions. The device features a smart turn-off anticipation timing mechanism and an automatic turn-off function for duty cycles less than 14%.
| Supply Voltage Range | 4V to 5.5V |
|---|---|
| Peak Output Current (Source) | 2A |
| Peak Output Current (Sink) | 3.5A |
| Operating Frequency | 30 to 750 KHz |
| Storage Temperature Range | -55 to +150 °C |
| Operating Junction Temperature Range | -40 to +125 °C |
The typical peak output current is 2A for sourcing and 3.5A for sinking.
The device operates in a frequency range from 30 to 750 KHz.
The supply voltage range is from 4V to 5.5V.