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INA213: INA213BID

Andrea Biondini
Prodigy 10 points
Part Number: INA213
Other Parts Discussed in Thread: INA240

Dear all,

 I use the component INA213BID in my application.

 I observed that when I have no load, the component gets very hot (about 50°C / 323K with Tamb 24°C / 297K). The signal through the shunt resistor is 5V square wave, the component is powered at 3.3V.

 I wanted to ask you if you have any ideas about the cause of this phenomenon.

 Can the voltage difference between IN and V+ be a problem? I would like to test if I power the component at 5V (same voltage like the inputs) if the IC temperature will decrease.

 

Thank you very much for your support

 Best regards

 Andrea

  • 0
    TI__Mastermind 30910 points

    Hi Andrea,

    The voltage difference between IN and V+ is not a problem. For this type of application, the right choice of amplifier should be the ones that are capable of handling PWM input. Examples are INA240 and INA241.

    The heat observed is a symptom of the device being already damaged.

    Regards, Guang