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LED Driver Supports Green Lighting Designs

Thu, 02/05/2009 - 7:14am

Maxim MAX16834Suiting boost, buck-boost, SEPIC, and high-side buck topologies, Maxim Integrated Products’ MAX16834 current-mode LED driver (SSLD) operates in solid-state lighting (SSL) designs, such as MR16 spotlights, for LED automotive exterior lighting, LCD backlighting, and architectural lighting. The 4-mm × 4-mm, 20-pin TQFN-packaged device integrates a high-side, current-sense amplifier and a PWM-dimming MOSFET driver. The component drives an N-channel PWM-dimming switch for 3,000:1 PWM-dimming range; offers analog dimming that allows the LED current to be controlled by an external DC voltage; and exhibit a up to 1-MHz switching frequency. The SSLD incorporates analog thermal-foldback protection to allow the use of an external thermistor; a fault-output flag for overvoltage, overcurrent, and thermal warning faults; and programmable, true-differential overvoltage protection. The product operates in a temperature range from -40°C to 125°C with >92% input power factor correction. From $1.24 in 1,000 quantities and up.

Maxim Integrated Products
800-998-8800, www.maxim-ic.com

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