UCC24610

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community Reference Design UCC24610 SLUSA87C – AUGUST 2010 – REVISED OCTOBER 2015 UCC24610 GREEN Rectifier™ Controller Device 1 Features 1 Secondary-Side Controller Optimized for 5-V Systems Up to 600-kHz Operating Frequency VDS MOSFET-Sensing 1.6-Ω Sink, 2.0-Ω Source Gate-Drive Impedances Micro-Power Sleep Current for 90+ Designs Automatic Light-Load Management Synchronous Wake-Up From Sleep and Light- Load Modes Protection Features on Programming Inputs SYNC Input for CCM Operation 20-ns Typical Turnoff Propagation Delay Improved Efficiency and Design Flexibility Over Traditional Diode Solution May Be Biased Directly From 5-V Output Minimal Component Count 2 Applications AC-to-DC 5-V Adapters 5-V Bias Supplies Low Voltage Rectification Circuits Flyback and LLC Converters 3 Description This GREEN Rectifier™ controller is a highperformance controller and driver for standard and logic-level N-channel MOSFET power devices used for low-voltage secondary-side synchronous rectification. The combination of controller and MOSFET emulates a near-ideal diode rectifier. This solution not only directly reduces power dissipation of the rectifier but also indirectly reduces primary-side losses as well, due to compounding of efficiency gains. Using drain-to-source voltage sensing, the UCC24610 is ideal for Flyback and LLC-resonant power supplies but can also be used with othe...