At 11:38 AM 1/28/2003 +1100, you wrote:
>Vern Jones wrote:
> >
> > A ULN2803 can drive up to 500ma per gate. 8 Driver per 18 pin dip.
>
>
>It CAN do 500mA but poorly. I believe about 1.7v Vce
>saturation, pretty sad really since you can get 8x
>BC337 transistor and 8x base resistor for a fraction
>of the price and MUCH MUCH better performance.
>It annoys the heck out of me that no chip maker
>is producing a decent performance driver chip at a
>decent price.

Consider Texas Instruments' line of DMOS logic circuits if you like low
drop at more moderate currents.

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

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