ULN2803 PWM frequency

Expert 5880 points

Other Parts Discussed in Thread: ULN2003A

Hello,

What is maximum rate the outputs of the ULN2803 can be switched on/off with PWM on base inputs?

over 7 years ago

0 Michael J Schultis over 7 years ago

TI__Mastermind 24485 points

Hello Dave,

It depends a little bit on the tolerance of degradation on the output. Based on testing with the ULN2003A, and the ULN2803A being the same general structure, 500kHz would be recommended maximum.

We could perform some further testing as well to get a better idea if you have a specific frequency in mind.

Best,
Michael

0 D over 7 years ago in reply to Michael J Schultis

TI__Expert 5880 points

This is good. Thanks for the reply.

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ULN2803 PWM frequency