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TPL5110: Need help with TPL5110 operational mode

David Carter78
Prodigy 10 points
Part Number: TPL5110
Other Parts Discussed in Thread: TPL5111,

Most of the applications I see for the TPL5110 and TPL5111 require feedback from a microcontroller.

I need a simple timer circuit that supplies power to a load with the following requirement:  output is "on" for 5 seconds and "off" for 30 seconds, with this cycle repeating automatically. 

Is it possible to achieve this mode of operation without an external microcontroller?  I want to keep the active parts count low and get maximum power conservation.  Thank you for any insight you can provide.

  • 0
    TI__Genius 9920 points
    Hi David,
    You application need 2 variables. One for 5 seconds, another for 30 seconds. Without Done pin, Delay pin only can set one time variable. So
    you have to use an external microcontroller to achieve 5 s ON + 30 s OFF.

    Regards,
    Shawn