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TPS3808: Question about TPS3808G50 RESET PIN

Satoshi Yone
Expert 3600 points
Part Number: TPS3808

Hi, Team,

Could you please let me know the below value?

1. Pull-up resistor, capacitance tolerance range

2. Reset pin Current temperature characteristics (Max. 5mA is recommended for free-air)

Best Regards,
Satoshi Yone

  • 0
    TI__Genius 9375 points

    Satoshi-san,

    Let me try to answer your questions:

    1. We do not officially recommend a certain tolerance for your pullup resistors or Ct capacitors. Generally, customers will use 1% or 5% resistors and 10-20% capacitors. While we do not recommend one way or another, lower tolerance will be better. You have to take into account the accuracy and adjust your capacitors as such to account for the delay. Tolerance of resistors should not matter.

    2. The /RESET pin current specified is for the whole temperature range, -40 C to 125 C. You should always design with a 5 mA max on this pin.

    Thanks,
    Abhinav.