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  • BQ2970: Determining FET RDSon choice

    TI Thinks Resolved
    Part Number: BQ2970 Other Parts Discussed in Thread: CSD83325L , BQ2980 I’m curious about the FET choice because our over-current thresholds are going to be very low (250-350mA). I originally picked a small FET (CSD83325L) to start and with 20mΩ Rds,on…

  • BQ27742-G1: Recommended MOSFET for BQ27742-G1

    TI Thinks Resolved
    Part Number: BQ27742-G1 Other Parts Discussed in Thread: CSD87501L , CSD83325L Hi team, Can you have a look at the following customer issue please? Is there a MOSFET that you recommend to use with BQ27742-G1 instead of uPA2375T1P or CSD87501L? We…

  • RE: Fuel Gauge selection

    Hello, I am not sure about it. I think it is 1S. We have 3 cells in parallel. Each having capacity of 3000mAh and a termial voltage at full charge of 4.2V. We have BQ29700DSET and CSD83325L for battery protection.

  • TIDA-00712: Smartwatch Battery Management -- question regarding role of R26 in Protection section of Schematic Diagram

    TI Thinks Resolved
    Part Number: TIDA-00712 Other Parts Discussed in Thread: CSD83325L Hi, We are evaluating battery protection designs for a new wearable device and are currently considering using the BQ29700 coupled with the CSD83325L (similar to the TIDA-00712 reference…
    • Answered

  • Need charge discharge MOSFET and driver circuit

    Resolved
    Other Parts Discussed in Thread: CSD13380F3 , CSD83325L Hi! I am designing BMS design for research purpose. for that i cannot explain the whole idea but i need to control the charging and discharging of single lithium ion cell. For this purpose i…
    • Resolved
    • Answered

  • BQ2970: Protection IC does not seem to be cutting off current drain at under-voltage protection

    Resolved
    Part Number: BQ2970 Other Parts Discussed in Thread: TIDA-00712 , , BQ25120 , CSD83325L I have made a circuit design that very closely mimics the TIDA-00712 reference design. Long story short, my battery is always connected to the circuit and I am seeing…
    • Resolved

  • BQ27742-G1: Limiting factor for current

    Part Number: BQ27742-G1 Other Parts Discussed in Thread: CSD83325L What's the limiting factor for current for this solution? It seems it would be the FETs chosen and the sense resistor's power handling capability. However I noticed the eval board is limited…
    • Answered

  • BQ2970: Achieving low OCC and OCD thresholds for an ultra-low-power wearable application

    Resolved
    Part Number: BQ2970 Other Parts Discussed in Thread: CSD83325L , CSD85302L Hi, We are working on an application for a wearable device that utilizes an extremely small capacity lithium polymer cell (30mAh) and completes the battery protection circuitry…
    • Resolved

  • RE: BQ28550-R1: Alternatives for battery protection *** battery profile sensing

    Hi Onyx, Thanks for the prompt reply. The IC you mentioned looks fine. Similar to what my requirements are. I went through the datasheet where the FET mentioned (CSD83325L) has max ID value of 8A. Though my application will be around the mark of 5A …

  • Power supply switching

    Other Parts Discussed in Thread: CSD13383F4 , CSD83325L , CSD13302W , CSD13306W , CSD15380F3 Hello all, I have a unit with following input power supplies: (1) +7V with 0.4A, (2) +5V with 0.2A and (3) -5V with 0.06A. I have to switch-off the unit with…

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