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INA310A-Q1: INA310A2-Q1

Aravind Girishan
Prodigy 30 points
Part Number: INA310A-Q1
Other Parts Discussed in Thread: INA310A

Tool/software:

Dear Texas Instruments Support Team,

I am currently working on a project that involves the use of the INA310A current sense amplifiers, and I have a few of specific questions regarding its capabilities:

  1. Can the INA310A current sense amplifiers differentiate between inrush current and normal operating current? This distinction is crucial for my project, as it involves identifying transient inrush currents versus steady-state operating currents.

  2. Are the INA310A current sense amplifiers suitable for measuring current in inductive and motor load applications?

  3. Can the overcurrent (OC) trip threshold time be adjusted? (Waiting some time after the over current occurs and then after the timeout set the OC alert)

I would greatly appreciate any detailed information or guidance you can provide on these matters.

Thank you for your support.

  • +1
    TI__Mastermind 27360 points

    Hello Aravind,

    Here are my responses to your questions:

    1. The INA310A just measures current and reports the output as a voltage. When it comes to inrush current, you can see if the INA310A is acceptable for you by looking at the bandwidth, which is 1.3 MHz . So if this is fast enough for you, then you will be able to detect the inrush current. 

    2. Yes, you can use the INA310A to measure current in any application where the device requirements are met (ie, supply voltage, common mode voltage, etc.), and where the accuracy, bandwidth, and other device parameters meet your requirements. 

    3. No, the OC timing cannot be adjusted. If you need a delay, you can add some delay circuitry to the OC pin output.

    Regards,

    Mitch