RT7220A Description
The RT7220A is a high performance Synchronous Rectifier (SR) controller for flyback converters operating in Continuous Conduction Mode (CCM), Discontinuous Conduction Mode (DCM) and Quasi-Resonant (QR) mode. This SR controller senses the drain voltage of MOSFET to determine SR gate on/off so as to minimize turn-off dead-time and enhance efficiency. The RT7220A is designed to support a wide output voltage range of 3V...
RT7220A Key Features
- Suitable for High/Low-Side SR Control of Flyback in CCM, DCM and Quasi-Resonant Mode
- Suitable for 3V to 22V VOUT Range
- <1.2mA Operating Current in Normal Mode
- <160A Operating Current in Green Mode
- Built-in HV LDO to Supply SR Driver when VOUT
- Automatic Tracking Control to Optimize
- 300kHz Maximum Operation Frequency
- Protection
- SR Gate Driver with 6V Clamp
- SR Gate Initial Output Low Clamping Voltage