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Programmable LED Driver Manages Temperature

Mon, 09/21/2009 - 10:25am

LED driver with temp mgtNational Semiconductor announced an LED driver with temperature management control. The LM3424 drives high-brightness LEDs in a variety of indoor, outdoor and automotive applications. Supported in National’s WEBENCH LED Designer, its temperature management control, thermal foldback, enables lighting designers to quickly and easily design a reliable thermal system. The LM3424 allows designers to program temperature and slope breakpoints within which the LEDs operate safely. When an over-temperature condition occurs, the  thermal foldback circuitry reduces the regulated current through the LEDs. The reduced current dims the LED to a range programmed by the designer, and the LED remains within the range until it returns to a safe operating temperature.

National Semiconductor
800-272-9959, www.national.com

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