TI ‘Green Rectifier’ packs power-saving features


Dallas, Tex. — Texas Instruments Inc. (TI) has introduced a new power management controller and driver for standard and logic-level N-channel MOSFETs used for low-voltage, secondary-side synchronous rectification. The UCC24610 Green Rectifier controller improves power supply efficiency as much as five percent, and reduces primary-side power loss in 5-volt AC/DC adapters and bias supplies, said TI.

The 600-kHz UCC24610 Green Rectifier provides power-saving features and design flexibility not available from traditional diode rectifier solutions, according to TI. The device’s micro-sleep current, automatic light-load management and synchronous wake-up features help maximize 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.

Housed in an 8-pin, 5 x 6-mm SOIC package, the UCC24610 requires minimal external component count, said TI. For added design flexibility, the device can be biased directly for a 5-V output without an external regulator.

Availability: The UCC24610 is available in volume now from TI and its authorized distributors.
Pricing: Suggested resale pricing is $0.75 in quantities of 1,000. Evaluation modules include the 5-V, 10-W UCC24610EVM-693 daughtercard and the UCC24610EVM- 563 5-V, 25-W off-line DCM flyback converter. Both evaluation modules are available via TI’s e-Store.