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  • BQ4050: The logic of "PF Shutdown mode"

    Part Number: BQ4050 Hi TI engineer: Our Settings for the shutdown parameter are as follows: We would like to confirm if our understanding of the PF Shutdown logic is correct: when PF is not triggered, the Shutdown Voltage is 1500mV; after PF is…
    • Answered

  • BQ4050: BQ4050

    Resolved
    Part Number: BQ4050 Other Parts Discussed in Thread: BQSTUDIO Tool/software: The BQ4050 reports abnormal battery health and cycle count. Every time the anomaly occurs, the health indicator shows 103 and the cycle count is 14336. After…
    • Resolved

  • BQ4050: Inquiry about the pull-up details of the pins on BQ4050-DISP.

    Part Number: BQ4050 Tool/software: Technical Support Inquiry: DISP Pin Pull-Up Issue with Key-Press Circuit Problem Description We are encountering an issue where the DISP pin voltage fails to drop to a valid logic-low level when a 1kΩ pull-down resistor…

  • BQ4050: BMS Stops Communicating Temporarily After Firmware Readout

    Part Number: BQ4050 Hi, We have developed a 2S BMS based on the BQ4050 BMS IC and encountered an issue during testing. After extracting the firmware from the BMS, communication with the device is lost, even though the BMS remains powered on and full…

  • BQ4050: Modify the logic of the "Design Capacity" parameter

    Part Number: BQ4050 Hi TI engineer: The parameters of our current Design Capacity are as follows(unit is 4mA) Design Voltage is 12800mV Design Capacity is 17100*4=68,400mAh Design Capacity is 21888*4=87,552cwh Now we want to modify the designed…

  • BQ4050: IIC communication anomaly issues

    TI Thinks Resolved
    Part Number: BQ4050 Hi team, The customer encountered a NACK error when using software to simulate I2C reading. Abnormal waveform: Normal waveform: The customer's clk timing has been checked and meets the manual requirements; Using…
    • Answered

  • BQ4050: Cell Balancing and COV Behavior in bq4050

    Resolved
    Part Number: BQ4050 Tool/software: Hello, I am working with the bq4050 and observing some unexpected behavior related to cell balancing and Cell Over Voltage (COV) detection . Issue Description: Before charging, there was a 60–80 mV difference…
    • Resolved

  • BQ4050: Overcharge Protection Questions

    TI Thinks Resolved
    Part Number: BQ4050 Hello, Our customer reported that the OC (Overcharge) protection was triggered in a 4S1P battery pack using BQ4050. This was unexpected because the OC threshold is configured really high. Unfortunately, the customer was unable to…

  • BQ4050: ASCD has been triggered but don't recorded in gg file

    Part Number: BQ4050 Hi TI engineer: Our ASCD parameter setting are as follows. After a short circuit is triggered, the SafetyStatus shows that ASCD has been triggered. However, when the gg file is exported, it is found that the lifetime data don't record…

  • BQ4050: Wrong data length was specified in bq4050 RM on RSOC (0x0D, Relative state of charge)

    Part Number: BQ4050 Other Parts Discussed in Thread: BQ25798 , TIGER , BQSTUDIO , EV2400 Tool/software: In reference manual 13.14 RelativeStateOfCharge(), it specified that the RSOC is only 1 byte data. However, when capturing the I2C communication…

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