TPS3808 /MR pulse width

wlodek solarz

Other Parts Discussed in Thread: TPS3808

My previous post was unclear. The question is: Is 1ns pulse width on MR input enough for correct generation of a RESET pulse on TPS3808 output?

over 13 years ago

0 BrandonAzbell over 13 years ago

TI__Guru 63530 points

I believe this is the Tw timing parameter found in the Electrical Characteristics table of the TPS3808 datasheet on page 3.

0 Chris Glaser over 13 years ago in reply to BrandonAzbell

TI__Guru*** 145450 points

Yes, this is the correct parameter. Typically, a 1 ns pulse width at /MR with create a RESET.

0 Matthew Day over 13 years ago in reply to Chris Glaser

TI__Mastermind 36110 points

The TPS3808 /MR pulse width (Tw parameter in datasheet) should be designed to be 20ns minimum to guarantee the TPS3808 detects the signal across all worst case conditions.

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TPS3808 /MR pulse width