The UCC24610 ‘Green Rectifier’ from Texas Instruments is a new power management controller and driver for standard and logic-level N-channel MOSFETs used for low-voltage, secondary-side synchronous rectification. It improves power supply efficiency by as much as 5%, and reduces primary-side power loss in 5 V AC/DC adapters and bias supplies.
The 600 kHz device provides power-saving features and design flexibility not available from traditional diode rectifier solutions. Its micro sleep current, automatic light-load management and synchronous wake-up features help maximise efficiency. The UCC24610 uses drain-to-source voltage sensing to support flyback and LLC resonant converters, as well as other power architectures, to give designers greater flexibility. It is available in an 8-pin, 5 x 6 mm SOIC package. Easy-to-use evaluation modules include the 5 V, 10 W UCC24610EVM-693 daughter card and the UCC24610EVM- 563 5 V, 25 W off-line DCM flyback converter.
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