SY23425 Description
Features The SY23425 is a synchronous rectification controller with high performance capabilities, ideal for use in flyback converters operating in CCM (Continuous Conduction), DCM (Discontinuous Conduction), and QR (Quasi-Resonant) modes. It can drive both standard and logic-level N-channel MOSFETs for secondary-side synchronous rectification. To prevent false turn-on by parasitic ringing under DCM or QR mode, the...
SY23425 Key Features
- Suitable for CCM, DCM and QR Mode Flyback Converters
- DSEN Pin Sensing up to 200V
- DSEN Falling Slope Rate Detection to Avoid False Turn on
- Uses DSEN High Voltage Blanking Time to enhance system
- GATE Pin Clamped before VDD On
- Dual Supply Channel for 3.3V to 21V Output Systems
- Supports the use of GaN MOSFETs
- Up to 500kHz switching frequency
- 10 ns Typical Turnoff Propagation Delay
- 2A Sink, 0.5A Source Gate Driver Capability