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INA303: INA303 SPICE model issue

Part Number: INA303
Other Parts Discussed in Thread: TINA-TI,

the behavior of INA303 in TINA-TI has a problem, i am using a bidirectional current sensing scheme, the LIMIT1 works fine but LIMIT2 is always pulled low. i tried switching between both current setting resistors still the same behavior. INA303.TSC

  • Hello Omar,

    This is a known issue. The pull-up resistor on the DELAY pin to VCC must be removed for ALERT2 to function correctly. I've adjusted it in your circuit and now ALERT2 works well.

    INA303_iw.TSC

    Best regards,

    Ian Williams
    Applications Manager
    Current Sensing