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LM3880: Push Pull Outputs version?

Antonio Faggio
Expert 7280 points
Part Number: LM3880
Other Parts Discussed in Thread: UCD9090-Q1,

Hi,

I am already using LM3880MF-1AA as a power sequencer, do you have adevice similar to this one but with push pull outputs? If Automotive it is better.

Many Thanks,

Antonio

  • 0
    TI__Guru 60800 points

    Hi

    Will they consider UCD90xxx digital sequencer? such as UCD9090-Q1

    The output is configurable.

    Regards

    Yihe

  • 0 in reply to yihe
    TI__Expert 7280 points

    Hi,

    Thanks, customer would like something similar to LM3880 better if p2p.

    I ask for additional information: which is the minimum low or high level of the EN pin to be recognized? If I had to generate a very short pulse of 1us on EN would it be caught or filtered? Question for both LM3880 and UCD9090-Q1.

    Many Thanks,

    Antonio

  • 0 in reply to Antonio Faggio
    TI__Guru 60800 points

    Hi

    We do not have something P2P with LM3880 offering push pull output.

    For the LM3880, the minimum is 1.0V and the max is VCC + 0.3

    For the UCD9090-Q1, EN is  a CMOS signal, the minimum is VCC - 0.6V, the max is 3.6V

    For 1us glitch, it will be filter by LM3880 since it is small then the minimum delay time.

    For UCD9090-Q1, since the EN is polling, there are some chances it may be caught by the device. But customer can configure the soft off on the rail so that device does not take action on the glitch.

    Regards

    Yihe