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  • BQ25155EVM: Excessive current drain while in battery undervoltage lockout mode.

    Part Number: BQ25155EVM I've removed J4 (extra 3.3V header) from the board and connected J7 (VBAT header) to a Keythley 2450 SourceMeter. The board preforms as expected with ~800nA being consumed from VBAT while PMID is also outputting the same voltage…
    • Answered

  • BQ25155EVM: Watchdogs

    Resolved
    Part Number: BQ25155EVM Other Parts Discussed in Thread: BQ25155 Hi, I have questions about some watchdog defined for the device BQ25155. In the chapter 8.3.2.2 Safety Timer and I 2C Watchdog Timer of the document bq25155.pdf , this is reported: Can you…
    • Resolved
    • Answered

  • BQ25155EVM: Behavior when VBAT < VBATUVLO

    Resolved
    Part Number: BQ25155EVM Other Parts Discussed in Thread: BQ25155 Hi, Condition: device in Low power Mode, V IN < V UVLO , V BAT > V BATUVLO so the battery discharge FET is turned on connecting PMID to the battery. Event: V BAT < V BATUVLO After the event…
    • Resolved

  • BQ25155EVM: Triggering interrupt not ADC ready.

    TI Thinks Resolved
    Part Number: BQ25155EVM Hi TI support. For some time now I've tried to make it work but somehow I'm not getting any interrupt on when ADC conversion is ready. So I'm triggering ADC conversion manually (ADCCTRL0.ADC_CONV_START = 1) during the active…
    • Answered

  • RE: BQ25155: VBAT ADC readout value is not correct while Active Battey Mode

    Resolved
    Dear Juan, I use BQ25155EVM for test and also use oscilloscope to monitor VBAT while testing, no 1V glitches on VBAT observed BR Peter

  • BQ25150: Issues with values of registers ICHG_CTRL and PCHRGCTRL 0x13 and 0x14

    TI Thinks Resolved
    Part Number: BQ25150 Other Parts Discussed in Thread: BQ25155EVM , BQ25155 We are using BQ25150 in one of our boards We are facing issue with the values of two registers in the IC Content on reset as per the Datasheet ICHG_CTRL (Address = 0x13) [reset …

  • RE: BQ25155: I2C reading operation problem

    Raheem said: Can you share your schematic? This is part of the schematic related to the charger IC. There are two 4k7 pull-up resistors towards 3.3V for the two SDA and SCL lines, which are in another sheet, since there are other I2C devices in the…

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