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Original question:

TPS65381A-Q1: Standby current

TPS65381A-Q1： Standby current

Hayashi
Expert 1840 points
Part Number: TPS65381A-Q1

Hi team
My customer wants to know about the current consumption at the time of standby.
Before, there was the same content, but please ask questions about the following content.

1. Why does the standby current change after IG-OFF?
2. I think that the standby current is 75 uA. Is this 100% inspected? Also, is it only room temperature as a condition?

Best Regards
Hayashi

  • 0
    TI__Mastermind 49171 points
    Hello Hayashi,
    Your questions have been assigned to the applications specialist for this device who is on business travel. He will respond as soon as he has some availability.
    Thank you for your patience.
  • 0
    TI__Mastermind 20590 points
    Hi Hayashi-san,

    The DC average current in STANDBY state is specified in the Recommended Operating conditions section of the datasheet, POS R1.5.

    "Current consumption in standby mode (all regulator outputs disabled) IGN = 0 V, CANWU = 0 V, 5.8 V ≤ VBAT ≤ 20 V for TJ < 85°C or 5.8 V ≤ VBAT ≤ 14 V tor TJ = 125°C" where the maximum is 75 uA.

    A1: There is a current change over the first ~120 seconds after the device is transitioned into STANDBY state as some internal circuits discharge, the device will settle to a steady state average DC current per the datasheet.
    A2: As seen in the Datasheet this is specified over a wide input voltage range and at Tj (junction temperature of 125C) which is very hot and a worst case corner.
  • 0 in reply to Scott Monroe
    Expert 1840 points
    Scott san

    Thank you for your supports.
    I just sent you an email directly.
    The customer has been so hurried so can you check the email you sent earlier?

    Best regards
    Hayashi