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BQ25895EVM-664: Question about INT.

Part Number: BQ25895EVM-664

Hi

I am testing the BQ25895EVM .

Question

 In datasheet, pulse occurs when INT pin is below. However, there is no change when measured by EVM

   How is the INT (TP15) of the EVM measured?

-Datasheet(P.25)-

The INT notifies the system on the device operation. The following events will generate 256-µs INT pulse.

• USB/adapter source identified (through PSEL or DPDM detection, with OTG pin)

• Good input source detected – VBUS above battery (not in sleep) – VBUS below VACOV threshold – VBUS above VVBUSMIN (typical 3.8 V) when IBADSRC (typical 30 mA) current is applied (not a poor source)

• Input removed • Charge Complete • Any FAULT event in REG0C

Thanks

  • Hi David, 

    Below is a waveform capture of INT pin using BQ25895EVM. On my EVM I do not observe any issues with INT functionality. This specific capture is observed with Vbat = 3.9V then plugging in 5V input. 

    Best Regards,

    Garrett