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Boost Converter Manages Multiple High-Brightness LEDs

Thu, 01/03/2008 - 8:55am

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boost converter supportsTexas Instruments Incorporated introduced an LED driver with an integrated 40V, 1.2A switch that can drive up to three 1W LEDs in series. The TPS61165 device’s features and input voltage range of 3V to 18V allow designers to manage multiple high-power LEDs used in single-cell, battery-powered applications or point-of-load designs with a 9V or 12V bus. The TPS61165 allows LED brightness to be controlled by a digital single-wire interface or pulse width modulating (PWM) signal. The digital interface can program an internal register to set the LED current to one of the 32 logarithmic steps. The converter also comes with built-in protection features such as open LED protection, soft-start, over-current limit and over-temperature protection. In addition, the part can drive backlight LEDs for media form factor displays up to 9 inches in diameter, such as those used in ultra-mobile PCs and LCD photo frames, industrial laser diodes or medical and industrial lighting. 

Texas Instruments Incorporated
800-477-8924, www.ti.com

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