At 21:18 15/10/99 -0700, you wrote:
>Hi All:
>
>Just ran into a snafu with one of our pic based loggers--had specified a
>National LMC7225IM micro-power comparator (open drain output) in a SOT-23-5
>package, and all my normal vendors are saying buy a reel of 1000 and wait
>8-12 weeks.  I need TWENTY as soon as I can get them--or a pin for pin
>equivalent--or another solution to drop into the existing hardware for low
>battery detection.
>
>I had tried a Telcom TC54VN (a three pin 2.7 volt voltage detector), but
>the input impedance is way too low--I need to run 100uA though the input
>divider just to keep the thing from oscillating--and this almost triples my
>overall power draw for the whole logger.
>
>Key requirements are:  really low power, SOT-23-5 compatible or easily
>kludgeable in the available space--and no re-design of the PCB's.  Input is
>6 to 15 volts DC, with the desired trip point at 6.1 volts. Open drain
>output is not mandatory.
>
>Anyone have any ideas?
>
>Thanks
>Kelly
>
>
>
>William K. Borsum, P.E. -- OEM Dataloggers and Instrumentation Systems
><borsum@dascor.com> & <www.dascor.com>San Diego, California, USA
>
>


Low power comps eh,
Well both you and Andy can take a look at the Sieko ones SOT 23 package.
Nominaly used for reset control, but are just a comp nothing else (Needs a
Cap for reset control) Simple and CHEAP!


Dennis