Suited for MR16 spotlights and similar applications powered from ac voltage sources, the MAX16834 current-mode, high-brightness LED driver provides greater than 92% input power factor correction without the need for an additional PFC controller. It offers a high-voltage current-sense amplifier, up to 1-MHz switching frequency, and analog dimming that allows the LED current to be controlled by an external dc voltage.
In addition to driving an n-channel power MOSFET by the switching controller, the MAX16834 drives an n-channel PWM-dimming switch to achieve a wide, 3,000:1 PWM-dimming range. Additionally, it includes a fault-output flag for overvoltage, overcurrent, and thermal warning faults, and programmable, true-differential overvoltage protection. ($1.24 ea/1,000 — available now.)
Maxim Integrated Products , Sunnyvale , CA
Information 800-998-8800
http://www.maxim-ic.com
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