At 01:54 PM 5/13/2006 +0200, you wrote:
>HI,
>
>I would put a reasonable Zener diode in series with input. 18V seems to be
>appropriate.
>
>Regards,
>Imre

That will work, but really, a resistor is better, because if the voltage
drops below 20V or so with a zener you won't get enough current to operate
the driver. With a resistor it can tolerate a lot more variation in the
24V supply. Cheaper (by 1/10) and more rugged too. You can also get 4 in
an SMT pack cheaply.

>Best regards,

Spehro Pefhany --"it's the network..."            "The Journey is the reward"
speff@interlog.com             Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog  Info for designers:  http://www.speff.com
->>Test equipment, parts OLED displys http://search.ebay.com/_W0QQsassZspeff


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