Power Electronics / Power Management


Linear controller for offline LED lighting

19 November 2014 Power Electronics / Power Management

Texas Instruments’ TPS92410 is a 450 V linear controller that simplifies current regulation of high-voltage LED strings. It integrates a multiplier and tuneable phase dimmer detection, as well as analog dimming inputs and drive circuit protection functions to ease design of downlights, fixtures and lamps powered from an offline AC or conventional DC power source.

The device operates over a wide 9,5 V to 450 V input voltage range and functions as a standalone high-voltage LED string current regulator or pairs with TI’s TPS92411 floating switch to provide power in mains AC linear direct drive applications. Together, the TPS92410 and TPS92411 feature driver and LED circuit protection while providing an inductor-free lighting solution with low LED current ripple.

The TPS92410 includes an analog dimming input pin with LED shutoff to provide easy light intensity control in intelligent, microcontroller-based light fixtures.

For more information contact EBV Electrolink, +27 (0)21 402 1940, [email protected], www.ebv.com



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