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LMR14030: Max value of UVLO

user6471363
Prodigy 140 points
Part Number: LMR14030

Hi, 

Based on 8.3.6 of LMR14030, I can calculate RENT and RENB for desired UVLO hysteresis voltage. My questions are:

1. Is the VSTART the same as UVLO_H, and VSTOP is the same as UVLO_L? 

2. Can I use RENT and RENB to set VSTART to be 8V and VSTOP to be 7V? Since based on the datasheet, the max value of UVLO is 3.9V.

Best regards,

Tianze

  • 0
    TI__Mastermind 27470 points

    HI 

    1. this UVLO means when EN is higher than its threhsold hold, chips will start to work when Vin higher than 3.7V

    2. yes, you can use 8.3.6 Enable and Adjustable Under-voltage Lockout section for caculating the Rent and Renb for your VStart and Vstop . 

    Thanks