• State
  • Locked Locked
  • Replies 1 reply
  • Subscribers 19 subscribers
  • Views 226 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TPL5110-Q1: I want to make "60Hz / Pulse width 3.334 ~ 13.336 ms pulse width delay" from "60Hz / pulse width 16.667us input signal"

GARAM AN
Intellectual 1950 points
Part Number: TPL5110-Q1
Other Parts Discussed in Thread: LM555

Hello,

I'm using TPL5110-q1, trying to make "60Hz / Pulse width 3.334 ~ 13.336 ms pulse width delay" from "60Hz / pulse width 16.667us input signal".

 

1. Is this possible to make this work? If they give input signal (60 Hz / pulse width 16.667us) to the “Done pin(Pin number 4), can they have Delayed pulse (60Hz / Pulse width 3.334 ~ 13.336 ms) on the DRV pin(Pin number 5)?

On the “Detailed Description Overview” in the datasheet, minimum timing is 100ms, and this is over than customer spec, which is “pulse width (3.3 ~ 13.3ms)”.

2. There any way to make this reduce from 100ms to around 10ms?

3. Can I make this scenarios with LM555 timer?

4. Those scenarios don’t work, could you recommend proper timer IC that can satisfy this scenario?

Thank you

  • 0
    TI__Genius 16845 points

    A1. There is no simple way to achieve this. The minimum programmable time interval is 100ms, which means the maximum frequency is 10Hz.

    A2. Unfortunately it is not possible.

    A3. Yes, this is achievable with LM555 timer. If you plan to generate an output signal from the input signal, you can use the LM555 as a monostable multivibrator. The frequency will track the input, but you can adjust the duty cycle of the output by configuring the time delay. If you do not need the input, LM555 can operate as an astable multivibrator, where the LM555 will free-run at a fixed frequency that can be configured for your frequency and duty cycle.

    A4. I think LM555 will work. If you need additional support with the 555 timer devices, please submit a new forum post. 

    Kind regards,
    Lane