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Original question:

TPS25985: Design review

TPS25985: SCH review

Brian Chan
Expert 6620 points
Part Number: TPS25985

Hi team

this is my customer SCH  could you help me to review it ?

because I will LOA next week 

can you reply this week?

there are six TPS25985 in attached files 

BRs

brian

New_schematic_eFUSE_20230309_B.pdf

  • 0
    TI__Mastermind 39820 points

    Hi Brian,

    Thanks for reaching out. I will get back to you by tomorrow. 

  • 0 in reply to Avishek Pal
    TI__Mastermind 39820 points

    Hi Brian,

    Please see the observations below. 

    1) SMDJ12A or equivalent TVS diode needs to be added at the input of every TPS25985 schematic.

    2) PMEG045V100EPE-QZ or SBR10U45SP5-13 or equivalent Schottky diode needs to be added at the output of every TPS25985 schematic.

    3) MMBZ5230B should be used in all the schematics instead of MMBZ5226B. This resistor (highlighted with yellow color) should be 10k, not 100k.

    4) As there is already a 3.3V standby power supply rail, which is being used for PG pullup, same can be used for FLT_N pin. May I know any specific reason for using resistor divider from VIN?

    5)  Ceramic capacitor connected to the IREF pin should be 1 nF instead of 150 pF. This is applicable for all the schematics.

    Please click on "This resolved my issue" if this post answers your query.