SC3503
Overview
SC3503 is a smart secondary-side driver IC designed to drive N-Channel power MOSFET used as synchronous rectifiers in isolated flyback converters. The MOSFET can replace Schottky diode so the system can achieve higher efficiency and superior heat dissipation performance.
- High output voltage up to 22V
- Wide output range, even down to 0V.
- No need of auxiliary winding for power supply.
- Patented programmable turn on detection circuitry prevents MOSFET from mistake turn-on.
- Compliant with multiple types of MOSFETs
- High efficiency can meet CoC V5 and DoE VI.
- 10nS turn off propagation delay
- High switching frequency up to 1MHz.
- Extremely low quiescent current leads to low stand by power.
- Supports DCM, CCM, and Quasi-Resonant mode converters.
