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  • BQ2973: Picking a MOSFET in a very low current system, Vdss still 25V ?

    Resolved
    Part Number: BQ2973 Other Parts Discussed in Thread: BQ25175 , CSD13381F4 , Hi, I'm using a BQ29733 (-100mV / 120mV for Vocc / Vocd) to protect a VARTA CP1654 li-ion 155mAh cell battery. The system use a 150mA charging current, and system need only 10mA…
    • Resolved

  • RE: BQ77915: Cell balancing current limit

    Hi Shivani, You will want to find a FET with a Vgs threshold less than 1.7V and higher than 500mA drain current. The example I pointed you to before ( www.ti.com/.../TIDA-00449 uses the BQ76930 with CSD13381F4 for the external balance FETs.) meets these…
    • Answered

  • BQ77915: Power management forum

    Resolved
    Part Number: BQ77915 Other Parts Discussed in Thread: BQ24610 , CSD13381F4 , BQ76920 , BQ78350-R1 Hi Team, I am looking for a 12V BMS for a 3*4.2V li-ion battery pack. The device must include overcharging protection and over-discharge protection and the following…
    • Resolved

  • RE: TIDA-00792: External FET gate minimum current

    Hi Imran, In the TIDA-00792 the gates of the power FETs are fed thorugh R12 for the charge FETs and R14 for the discharge FETs. Each is 620 ohm. Large power FETs typically have a large Ciss and need a small gate resistor to switch quickly. The balance…
    • Answered

  • BQ76940: FOR 48V 100AH BATTERY

    Resolved
    Part Number: BQ76940 Other Parts Discussed in Thread: CSD13381F4 Hello i would like to make bms using bq76940 for my 48v 100AH 13s battery pack . but the maximum current is given as 20A.can you give me clarity on this thanking you Thrishool G
    • Resolved

  • RE: CD14538B: looking for a sample schematic

    It's 12V/22W so around 1.8A draw. I'm going to try the CSD13381F4 Mosfet its rated for 2.1A and 12V. Hopefully it will work out. Do you think that will work as a driver? I'd like to find a N-channel mosfet thats through hole instead of SMT. Thanks…
    • Answered

  • RE: OPT8241-CDK-EVM: Power supply of ILLUM_HEX_LED

    Resolved
    LEDs are supplied by IOutBoost, which is provided by combination of TPL0102-100RUCR (U9), CSD17308Q3 (X1), and CSD13381F4 (U8), and they are TI parts.
    • Answered

  • Motor driver IC with open circuit / short circuit detection

    Resolved
    Other Parts Discussed in Thread: DRV8848 , DRV8833 , CSD13381F4 Hi Is there a motor driver with the feature to detect if motor is connected or not ? For example a driver connected to a DC motor In idle state (no motor operation), the motor can be disconnected…
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    • Answered

  • BQ76940: circuit design and spec problems

    Resolved
    Part Number: BQ76940 Other Parts Discussed in Thread: CSD13381F4 , TIDA-00792 , TIDA-00449 Hi Engineer, I would like to confirm some designs in TI’s application reports. 1. I would like to confirm that the N-MOS is feasible to be used as an external…
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    • Answered

  • BQ76940: External Balancing FET RDS

    Resolved
    Part Number: BQ76940 Other Parts Discussed in Thread: CSD13381F4 , TIDA-00449 , CSD13383F4 Hi, in slua749a, section 4: Cell Balance, it says "A FET with a defined RDS(ON) at approximately ½ the cell voltage is desired." What does this mean…
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