can I use l293d in place of uln2003??


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nannasin285 years ago
 ULN2003  are high-voltage, high-current darlington drivers comprised of seven NPN arlington pairs. All units feature integral clamp diodes for switching inductive loads. Applications include relay, hammer, lamp and display (LED) drivers.
rickharris6 years ago
It depends what your going to do with it.

it's not a pin compatable chip so directly the answer would be NO.

The 293 is an H bridge and is usually used to drive 1 or 2 motors fwd and back

The 2003 is a darlington high current driver - can be used to drive any device in its current range - essentially it's a switch.

IF your driving a stepper motor then the 293 will drive them as well as the 2003 once you sort out the pins.

293 only provided around 600 Ma of current though.
ram_aloktripathi (author)  rickharris6 years ago
Sir,
I want to drive bipolar stepper motors for 3 axis cnc plotter, but on net I found the driver for unipolar with uln2003 only, I have l293d chips, so I want to drive these motors with l293d in place of uln2003 with "pc parallel port" IS IT POSSIBLE TO DO SO?? thats why I am asking this!! I have controlled a bipolar with atmega8, but i want it with parallel port and l293d, So can I do this??
Here page 17 and 18 show what you want.
ram_aloktripathi (author)  rickharris6 years ago
Thanks rick and steve!!
As Rick says, it depends what for.