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Showing 1,484 results View by: Thread Post Sort by
  • BQ76940: BQ76940

    Kavin s
    Kavin s
    Part Number: BQ76940 Tool/software: Dear Team, We want to measure pack current using the Coulomb Counter (CC) feature, but CC_READY bit is not setting, And set cc as continuous mode . Write_data=0xFF; HAL_I2C_Mem_Write(&hi2c1, 0x08<<1, 0x00…
    • 1 month ago
    • Power management
    • Power management forum
  • BQ76940: BQ76940: "BQ76940 + BQ78350: EV2400 vs EV2500 for Calibration & BQStudio Compatibility"

    Vandana D
    Vandana D
    Part Number: BQ76940 Other Parts Discussed in Thread: BQ78350 , BQSTUDIO , , EV2500 , EV2400 Tool/software: Dear TI Team, I’m working on a BMS project using BQ76940 + BQ78350 for a 48V, 15S LiFePO₄ battery. Could you guide me on the recommended interface…
    • 2 months ago
    • Power management
    • Power management forum
  • BQ76940: Bq76940 current averaging problem

    Chen CC
    Chen CC
    Part Number: BQ76940 Tool/software: Good day! When the system integrates charging function. Bq76940 reads the fluctuating current.(See Figure) Bq76940 current reading is set to once every 250ms. The blue line in the oscilloscope is the current…
    • 4 months ago
    • Power management
    • Power management forum
  • BQ76940: External charger cell balancing affecting BQ76940 voltage readings.

    Graeme King
    Graeme King
    Part Number: BQ76940 Tool/software: We are using the BQ76940 purely for cell monitoring and as a second layer of charge protection on a battery pack which is being charged by an external charger. During standby, charging and discharging without balancing…
    • 1 month ago
    • Power management
    • Power management forum
  • BQ76940: BQ76940 with BQ78350 Companion Controller Calibration Guide

    Prasanth Krishnan
    Prasanth Krishnan
    Part Number: BQ76940 Other Parts Discussed in Thread: BQ78350 , BQSTUDIO , EV2400 , EV2500 Tool/software: Dear TI Team, I am working on a battery management system project using: BQ76940 (battery monitor) BQ78350 (companion controller) Battery…
    • 2 months ago
    • Power management
    • Power management forum
  • BQ76940: "BQ76940 + BQ78350: EV2400 vs EV2500 for Calibration & BQStudio Compatibility"

    Vandana D
    Vandana D
    Part Number: BQ76940 Other Parts Discussed in Thread: BQ78350 , BQSTUDIO , , EV2500 , EV2400 Tool/software: Dear TI Team, I’m working on a BMS project using BQ76940 + BQ78350 for a 48V, 15S LiFePO₄ battery. Could you guide me on the recommended interface…
    • 2 months ago
    • Power management
    • Power management forum
  • BQ76940: BQ76940 I2C write read issue in Pack current ,UV Threshold, OV Threshold and charge discharge conditions

    Priyadharshini S
    Priyadharshini S
    Part Number: BQ76940 Other Parts Discussed in Thread: DRV8711 Tool/software: Hi TI Team, We are currently developing a Battery Management System (BMS) product using the BQ76940 IC, interfaced with an STM32 microcontroller. Our objective is to read…
    • 27 days ago
    • Power management
    • Power management forum
  • Answered
  • BQ76940: Bq76940 voltage detection input capacitor problem

    Chen CC
    Chen CC
    Resolved
    Part Number: BQ76940 Tool/software: Good day, According to the Bq76940 Datasheet, The maximum input capacitance of the Cell voltage detection can be 10uF.. 10uF capacitor is used in Bq76940 CELL voltage detection input capacitor. Will Bq76940 have…
    • Resolved
    • 7 months ago
    • Power management
    • Power management forum
  • BQ76940: Clarification on I2C Clock Frequency for BQ76940 and BQ78350-R1

    Arati Lal
    Arati Lal
    TI Thinks Resolved
    Part Number: BQ76940 Other Parts Discussed in Thread: BQ78350-R1 Tool/software: Dear TI Expert, We are currently using the BQ76940 AFE in combination with the BQ78350-R1 companion IC . As per the BQ76940 datasheet, the I²C clock frequency is expected…
    • 5 months ago
    • Power management
    • Power management forum
  • BQ76940: BQ76940 Schematic Review – Please Verify and Suggest Changes

    Vandana D
    Vandana D
    Part Number: BQ76940 Tool/software: Please review the attached schematic PDF of the BQ76940 IC and suggest any necessary improvements. BQ76940-Q1_REV_1V1_25_10_2024.pdf
    • 6 months ago
    • Power management
    • Power management forum
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