UCC24636 Description
The UCC24636 SR is a pact, 6-pin secondaryside synchronous rectifier MOSFET controller and driver for high efficiency Flyback converters operating in Discontinuous (DCM) and Transition mode (TM). Unlike traditional SR controllers which measure the SR MOSFET drain voltage, UCC24636 implements a volt-second balance control method to determine the turn off transition of the SR MOSFET; hence, SR conduction time is...
UCC24636 Key Features
- 1 Secondary-Side SR Controller Optimized for 5-V to 24-V Output Discontinuous/Transition Mode Only Flyback Converters
- Volt-Second Balance Control Enables Highest Rectifier Efficiency
- patible with PSR and SSR Flyback Controllers
- Ultra Low 110-µA Standby Current Consumption
- Auto-Detect Standby Mode Disables SR Switching
- SR Turn-Off Independent of RDSON and Parasitic
- Operating Frequency Up to 130 kHz
- Wide VDD Range from 3.6 V to 28 V
- Adaptive Gate Drive Clamp
- Open and Short Pin Fault Protection
UCC24636 Applications
- AC/DC Adapters For Smartphones and Tablets
- USB Chargers with Type-C Connectors