MIC3223 Evaluation Board
Part Number: ADM00939
Summary
The MIC3223 is a constant-current boost switching controller specifically designed to power
a string of high-power LEDs. The MIC3223 has an input voltage range from 4.5V to 20V
and is ideal for a variety of applications. The MIC3223 evaluation board is designed to
accommodate for a VIN of 6V to 20V.
Package Contents
1 x MIC3223 Evaluation Board
Product Features
The MIC3223 evaluation board is set to operate as a boost converter, which requires the
output voltage to be greater than the input voltage. It is important to have the series LED
forward voltage drops be greater than the input voltage because when the converter is off
the input is connected to the output through the inductor (L1) and diode (D1). VIN is
effectively applied across the LEDs and will turn on if the series sum of their forward voltage
drop is not greater than VIN. For 100% dimming duty-cycle, simply pull DIM IN to 5V.
https://www.microchip.com/Developmenttools/ProductDetails/ADM00939/2/1/19
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