BCR420UFD regulator equivalent, linear led constant current regulator.
* LED Constant Current Regulator Using NPN Emitter-Follower with Emitter Resistor to Current Limit
* IOUT
– 10mA ±10% Constant Current (Preset)
as long as the maximum supply voltage to the device is < 40V.
With the low-side control, the BCR421UFD has an Enable (E.
The BCR420UFD and BCR421UFD monolithically integrate transistors, diodes and resistors to function as a Constant Current Regulator (CCR) for linear LED driving. The device regulates with a preset 10mA nominal that can be adjusted with an external res.
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