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TPS51285B: SCH V2 review

Hailiang Zhang
Expert 7155 points
Part Number: TPS51285B

Hi Team，

Could you pls help review the SCH version 2 of TPS51285B for BYD? Not much has changed in this version.

In addition, is there a risk of damaging the MOS if the drive resistance of the high-side MOS is 0? Please comment.

7120.TI.pdf

Best regards,

Hailiang

  • +1
    TI__Genius 15587 points

    Hi Hailiang,

    According to Equation 3~4 in datasheet, I calculate the 5V-rail OC threshold is ~15.17A (for 12Vin), less than Imax 16A. 3.3V rail OC threshold is ~14.66A (for 12Vin), also less than Imax 16A.

    Please check again the OC threshold.

    Besides, we suggest to leave a place for HS-MOS driving resistor, which is useful for further debug.