PR4401 Led Driver

White Leds have a forward voltage drop of around 3.6V. If we wish to operate a white LED from a single 1.5V dry cell or 1.2V rechargeable cell we therefore need a voltage converter.The PR4401 from PREMA is a special purpose IC designed to drive a white LED.The device has just three connections and comes in an SOT-23 package which can be handsoldered.


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