NEX81801DA
Description
The NEX81801DA and NEX81802DA (NEX81801/2DA) are high performance synchronous rectification controllers used in switching mode power supplies.
Key Features
- Supports DCM, CCM, QR operation
- Supports up to 800 kHz switching frequency
- Standard and logic level MOSFET driving capability
- Wide output range down to 0 V with 2-channel VCC supply
- No need for auxiliary winding for high-side or low- side rectification
- Smart proportional gate driver for fast SR turn-off at CCM
- Adjustable turn-on blanking time for increased noise immunity
- Proprietary adaptive turn-on detection prevents SR FET from falsely turning on during DCM operation
- 10 ns typical turn-off propagation delay
- Available in a TSOT23-6 FC package
Applications
- AC/DC adapters for portable devices
