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  • BQ27621-G1: Performance and accuracy of BQ27621-G1

    TI Thinks Resolved
    Part Number: BQ27621-G1 Tool/software: Hello, In one of our new product, I am planning to use BQ27621-G1 gas-gauge IC. I need following question regarding performance of the ICs. 1. What is the maximum and average accuracy of BQ27621-G1 against actual…

  • BQ27621-G1: BQ27621 – SoC Accuracy Issue

    TI Thinks Resolved
    Part Number: BQ27621-G1 Hello, we are using the BQ27621YZFT-G1A fuel gauge in our product, and we would like to clarify the expected behavior in our specific hardware setup. System description The Li-ion cell is connected to the BQ27621 through…
    • Answered

  • BQ27621-G1: BQ27621-G1 – I2C Bus Issue and Power Domain Recommendation

    Resolved
    Part Number: BQ27621-G1 Other Parts Discussed in Thread: EV2400 , BQSTUDIO Tool/software: Dear TI Support Team, I’m experiencing an issue with the I2C communication on the BQ27621-G1 fuel gauge. In my current design, the I2C pull-up resistors are…
    • Resolved

  • BQ27621-G1: How to Set Full Charge SoC at 4.1V for BQ27621-G1 Fuel Gauge

    Part Number: BQ27621-G1 Other Parts Discussed in Thread: BQSTUDIO Tool/software: Dear TI Support Team, I am currently using the BQ27621-G1 fuel gauge IC in my product for a single-cell 18650 Li-ion battery (nominal 3.7V, full charge 4.2V) . The ChemID…

  • BQ27621-G1: 4.4V maximum charge battery

    TI Thinks Resolved
    Part Number: BQ27621-G1 Other Parts Discussed in Thread: GPCCEDV Tool/software: Hello, The BQ27621YZFR-G1A is specified for batteries with maximum charge voltages of 4.2 V, 4.3 V, or 4.35 V. We have a battery with 4.4 V maximum charge voltage (LiCoO…

  • BQ27621-G1: The Design Capacity value updated in Data Memory Parameter Update Example related question

    Part Number: BQ27621-G1 Tool/software: Hi team, we tried to modify the value Design Capacity from 2425 mAh(default) to 1000 mAh according to the "3.1 Data Memory Parameter Update Example" charter in the bq27621-G1 Technical Reference document. It…

  • BQ27621-G1: About Operating Modes

    Part Number: BQ27621-G1 Tool/software: Dear Team, I would like to understand the different operating modes supported by the BQ27621 fuel gauge. Specifically, which modes can be manually set or cleared? Additionally, when the battery-powered device…

  • BQ27621-G1: Question about software

    Part Number: BQ27621-G1 Other Parts Discussed in Thread: BQSTUDIO Tool/software: Hi team, 1. If battery capacity is 1000mAh and default is 2425mAh, should we need to set the register every power cycle? 2. Regarding to Control( ): 0x00 and 0x01 command…
    • Answered

  • BQ27621-G1: single cell solution

    Resolved
    Part Number: BQ27621-G1 Other Parts Discussed in Thread: BQ27220 , BQ34Z100 Tool/software: Hi, We have singel cell guage demand as below. Would you please suggest new part for us? 1. VBAT>4.6V 2. Li-ion polymer 3. System side guage not in pack…
    • Resolved

  • BQ27621-G1: Using BQ Studio to update register settings

    Part Number: BQ27621-G1 Other Parts Discussed in Thread: BQSTUDIO Tool/software: Dear Team, As per our application, we want to change the terminate voltage and set the registers that are related to battery parameters like design capacity. So, if we…

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