Maxim's LED Solution Enables Drop-in Replacements for Halogen MR16 Lamps
Jan 26, 2011 Maxim Integrated Products introduces the MAX16840, an LED driver that employs a proprietary architecture to ensure flicker-free, dimmable operation with electronic transformers and cut-angle dimmers. Maxim's patent-pending approach enables the design of retrofit LED lamps that can replace halogen MR16s without any changes to the existing electrical infrastructure.
The MAX16840 uses a unique, patent-pending approach to control the input current of the lamp. By actively shaping the input current it ensures flicker-free operation with most electronic transformers and dimmers.
The MAX16840 can be designed in without electrolytic capacitors. This extends the lifetime of the LED lamp, since electrolytic capacitors are usually the first component that fails in the driver circuit. Operation without electrolytic capacitors reduces the cost and size of the driver, allowing it to fit in the small MR16 form factor. An integrated switching MOSFET further extends these space savings.
The MAX16840 can deliver up to 20W of power. It is fully specified over the -40°C to +125°C temperature range and is available in thermally enhanced, 3mm x 3mm, 10-pin TDFN package. Prices start at $2.01 (1000-up, FOB USA).
Author: BIO T&T
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