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TIDA-01495: Brownout protection voltage divider calculation

VEERAMANI VISWANATHAN B
Prodigy 85 points
Part Number: TIDA-01495
Other Parts Discussed in Thread: UCC28063

Hi,

I have two queries in TIDA-01495

  1. For an minimum input AC voltage range of 70VAC, please suggest the voltage divider to be connected to VINAC pin in UCC28063.

  2. Is the design suitable for both AC and DC input? If there are any alterations to be done please do suggest. 

Thank you.

  • 0
    TI__Intellectual 940 points

    Hi,

    1. You can use below equation on page 20 of ucc28063 datasheet to calculate the divider resistance. I don't know you desired turn-on voltage.

    2. In theory, it can be suitable for DC input. the AC input is from 85V to 265V. please make sure your DC input is less than 374V.

    regards

    Huixin