On Sep 2, 2011, at 3:16 PM, V G wrote:

> I don't want to use anything opto isolated because that will
> unnecessarily take power to drive the LED.

These are 3mA LEDs, as far as I can tell.  Are you really worried =20
about 3mA of control current for a 2A load (that doesn't need =20
isolation)?  And is the 3mA really more than the power consumed by a =20
hypothetical high-side MOSFET driver?  (A TC4431 says it draws 2.5mA...)

BillW

--=20
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