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BQ77216: Accuracy of OV hygerisis, and UV hygerisis

Part Number: BQ77216

Hi Team,

A Japanese customer has a query on the value which is not listed in the datasheet,
he requested me to post the thread by English in the E2E.

The customer plans to use BQ77216 for voltage monitoring of EDLC module.
The customer wants to know the accuracy of OV hygerisis, and UV hygerisis,
but only the TYP value is recorded in the datasheet, and the tolerance accuracy is not clear.

Even if there is no precision value, if there is a general guess value, can you help me confirm it?

Thanks and regards,
Frank

  • Hi Frank,

    Please see the min and max of our characterization resutls for OV hys and UV hys below. Please keep in mind that we don't test the min and max in final test as we don't guarantee these specs. 

    Vov Hys: 100mV : min 94.59 max 101.89mV

    200mV: min 194.07mV max 200.97mV

    94.59 101.89
    194.07 200.97

    Vuv Hys:

    100mV : min 95.947 max 100.81mV

    200mV: min 196.4mV max 202.47mV

    95.947 100.81
    196.4 202.47

    Best,

    Xiaodong

  • Hi Xiaodong,

    Thank you for your response.

    The customer also wants to confirm the definition of the maximum and minimum characterization.
    Does "characterization" mean "design value"? Or "measured value of samples"?
    If it is the "measured value of the samples", what is the sample quantity?

    Thanks.

    Regards,

    Frank

  • Hi Frank,

    These min and max are measured values during our characterization phase of the device. The sample size is usually 30 samples.

    Best,

    Xiaodong