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UCC24610
SLU...
Product Folder
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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...