SRK1001 Overview
Description
The SRK1001 controller is designed for secondary side synchronous rectification (SR) in flyback converters, suitable for operation in QR and mixed CCM/DCM fixed frequency circuits. It provides a high-current gate-drive output capable of driving N-channel Power MOSFETs.
Key Features
- Secondary side synchronous rectification controller optimized for flyback converter
- Suitable for QR and mixed CCM/DCM fixed frequency operation
- Wide VCC operating voltage range 3.7 to 32 V
- CC regulation operation down to 2V output supported
- Very low quiescent current in low consumption mode (170 µA)
- High-voltage sensing input for SR MOSFET drain-source voltage (185 V AMR)
- Operating frequency up to 300 kHz
- High-current gate-drive output for N-MOSFET
- Fast turn-on with minimum delay time and adaptive turn-off logic
- Programmable minimum TON and TOFF
