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  • BQ27621-G1: Suitable Part

    Resolved
    Part Number: BQ27621-G1 Hello E2E Experts, Good day. I need to measure the battery SoC on a 18650 or similar removable cell battery. My product will not charge the battery, the user will replace them once it is discharged. My microprocessor will connect…
    • Resolved

  • BQ27621-G1: battery selection

    TI Thinks Resolved
    Part Number: BQ27621-G1 Other Parts Discussed in Thread: BQ34Z100-G1 , BQ35100 Hi team, Here' an issue from the customer may need your help: Using a 9-V battery, C2 and C3 are connected directly to VBAT, but VBAT is 0-6V tolerant. If the customer would…
    • Answered

  • BQ27621-G1: Battery compatibility

    Resolved
    Part Number: BQ27621-G1 Team, Can BQ27621-G1 be used if the cell chemistry is LiCoO2 and the maximum voltage is 4.2V, but we only charge it to 4.1V? from the related thread I see, seems like the answer is no, but wanted to verify before telling the cu…
    • Resolved

  • BQ27621-G1: incorrect charge status detection

    TI Thinks Resolved
    Part Number: BQ27621-G1 Other Parts Discussed in Thread: BQSTUDIO , , GPCCHEM Hi, I used BQ27621YZFR-G1A gauge to read the battery charge status on my embeded device. I read the Technical Reference www.ti.com/.../sluuad4c.pdf I read the Quickstart Guide www.ti…
    • Answered

  • BQ27621-G1: POWERMIN and i2c clock stretching details

    Resolved
    Part Number: BQ27621-G1 We are currently evaluating the BQ27621 for our low-power application and have some questions we could not figure out via the doc.: 1. There is a clear relationship between the different modes (Normal, sleep, etc.), how the gauge…
    • Resolved
    • Answered

  • BQ27621-G1: Compare the solution of BQ27621-G1 and BQ27220

    Resolved
    Part Number: BQ27621-G1 Other Parts Discussed in Thread: BQ27220 Hello, From datasheet, it looks both part can be used for Lithum-Ion detection. But BQ27621-G1 is more simple without external resistor. I am not sure any disadvantage of BQ27621-G1. Please…
    • Resolved

  • BQ27621-G1: High sleep current

    Part Number: BQ27621-G1 We're designing a new product with the BQ27621-G1, and we're having issues with high current draw. It's averaging about 100 µA when idle, oscillating between 50 µA and 150 µA. In this state, the SOC is…

  • BQ27621-G1: BQ27621-G1 PROBLEM WITH SEALING THE DEVICE

    TI Thinks Resolved
    Part Number: BQ27621-G1 Other Parts Discussed in Thread: EV2400 , BQSTUDIO Hi TI Team, We are using BQ-27621-G1 and we have encountered few problems and need your guidance on how to correct them. 1. Our I2C function to send data is somethinkg like I2CMasterTransmit…

  • RE: BQ27621-G1: BQ27621-G1

    Hello Masi, These are the gauge with similar footprints and pinouts: BQ27441-G1 BQ27621-G1 BQ27220 BQ27426 Sincerely, Wyatt Keller
    • Answered

  • BQ27621-G1: Unable to enter CFG_UPDATE mode

    Resolved
    Part Number: BQ27621-G1 Hi, I am trying to set the battery chemistry and having some issues entering cfg_update mode. First I do a hard reset upon start by using the Reset() subcommand: Write(0x0, 0x41) After which the ITPOR bit is set: Flags is 0x21 …
    • Resolved

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