RT7220D
Description
The RT7220D is a Synchronous Rectifier (SR) controller for Flyback converters operating in Continuous Conduction Mode (CCM), Discontinuous Conduction Mode (DCM) and Quasi-Resonant (QR) mode.
Key Features
- Suitable for Flyback Converter in CCM, DCM, and Quasi-Resonant (QR) Mode
- Suitable for 3V to 21V VOUT Range
- ZVS Function to Optimize Efficiency (Work with the Primary-Side Controller RT7757)
- <1.65mA Operating Current in ZVS Mode
- <250A Operating Current in Green Mode
- Built-In HV LDO to Supply SR Driver when VOUT is Lower than 5V
- Automatic Dead-Time Tracking Control to Optimize Efficiency
- SR Gate Driver with 6V Clamp
- SR Gate Initial Pull-Low before Start-Up
- SR Minimum Off-Time
Applications
- Fast-Charger Power Adapters
