Sunday, April 06, 2008

Voltage detector

How did I manage to miss the LMV431 precision voltage detector until now?  Internally it's like an ordinary precision shunt regulator, but the shunt transistor and error amplifier input have been brought out to separate pins.  That makes it good for all sorts of voltage detector and regulation uses.

Here is an example voltage range detector from the datasheet:

Simple, useful, and cheap.

Update: Fixed typo and added "electronics" label.


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