GREEN Rectifier Controller Device (Rev. B) - Texas Instruments Semiconductor - #1

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UCC24610 VD GATE VS TON EN/TOFF GND SYNC VCC – + 5 V Out 8 5 7 3 2 6 1 4 UDG-10079 UDG-10096 UCC24610 VD GATE VS TON EN/TOFF GND SYNC VCC 8 5 7 3 2 6 4 1 UCC24610 VD GATE VS TON EN/TOFF GND SYNC VCC 8 5 7 3 2 6 4 1 5 V 5 V 12 V OUT V BULK UCC24610 www.ti.com SLUSA87B –AUGUST 2010–REVISED SEPTEMBER 2010 GREEN Rectifier™ Controller Device Check for Samples: UCC24610 1FEATURES DESCRIPTION 2• Secondary-Side Controller Optimized for 5-V This GREEN Rectifier™ controller is a Systems high-performance controller and driver for standard • Up to 600-kHz Operating Frequency and logic-level N-channel MOSFET power devices • V used for low-voltage secondary-side synchronous DS MOSFET-Sensing rectification. • 1.6-Ù Sink, 2.0-Ù Source Gate-Drive Impedances The combination of controller and MOSFET emulates a near-ideal diode rectifier. This solution not only • Micro-Power Sleep Current for 90+ Designs directly reduces power dissipation of the rectifier but • Automatic Light-Load Management also indirectly reduces primary-side losses as well, • Synchronous Wake-Up From Sleep and due to compounding of efficiency gains. Light-Load Modes Using drain-to-source voltage sensing, the • Protection Features on Programming Inputs UCC24610 is ideal for Flyback and LLC-resonant • SYNC Input for CCM Operation power supplies but can also be used with other power architectures. The UCC24610 is optimized for output • 20-ns Typical Turn-Off Propagation Delay voltages from 4.5 V to 5.5 V, and is suitable for use • Improved Efficiency and Design Flexibility with lower and higher output voltages as well. Over Traditional Diode Solution The UCC24610 offers a programmable • May Be Biased Directly From 5-V Output false-triggering filter, a programmable timer to • Minimal Component Count automatically switch to Light-Load Mode at light load, and a SYNC input for optional use in Continuous APPLICATIONS Conduction Mode (CCM) systems. Protection features on TON and EN/TOFF pins prevent • AC/DC 5-V Adapters run-away on-time due to open-circuit or short-circuit • 5-V Bias Supplies fault conditions. • Low Voltage Rectification Circuits This device is available in an 8-pin SOIC package • Flyback and LLC Converters and an 8-pin, 3-mm x 3-mm QFN package with PowerPad™. TYPICAL APPLICATIONS LLC-Resonant Half Bridge Flyback Topology 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. 2GREEN Rectifier, PowerPad are trademarks of Texas Instruments. PRODUCTION DATA information is current as of publication date. Copyright © 2010, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.