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  • TIDA-00792: Alternate part for CSD13381F4 cell balancing MOSFET

    Resolved
    Part Number: TIDA-00792 Other Parts Discussed in Thread: CSD13381F4 , , BQ76940EVM , TIDA-00255 Hi TI Engineer, I am referring to TIDA-00792 hardware design files and found that CSD13381F4 FemtoFETs are (used for cell balancing) available only with…
    • Resolved

  • TIDA-00449: LiFePO4 battery application

    Part Number: TIDA-00449 Other Parts Discussed in Thread: BQ76930 , CSD19536KTT , CSD13381F4 , LMT01 Tool/software: Hi Team, We would like to ask your help regarding our customer's inquiries below. I am writing to seek your expertise and guidance regarding…

  • CSD13380F3: PSPICE for TI

    TI Thinks Resolved
    Part Number: CSD13380F3 Other Parts Discussed in Thread: CSD13381F4 , Why is the part CSD13380F3 in PSpice for TI software different with the package in datasheet. In the PSpice for TI，the Pin 1 is source, the Pin 2 is gate, Pin 3 is drain, as show in…

  • SN74ACT244: Driving LED using non-inverting buffer IC such as SN74ACT244

    TI Thinks Resolved
    Part Number: SN74ACT244 Other Parts Discussed in Thread: SN74LVC2G07 , SN74LXC8T245 , TPL7407LA , TPS22996 , TPS22960 , TXU0104 , SN74LXC2T45 , CSD13381F4 Tool/software: Hello, I have 8 LED and each LED can have a forward current of 25mA with forward…

  • BQ2970: Low-current application

    TI Thinks Resolved
    Part Number: BQ2970 Other Parts Discussed in Thread: CSD13381F4 , BQ2980 , BQ2982 I'm looking at this part for protecting a rechargeable lithium coin cell, with maximum charge and discharge current about 50mA. Sizing the FETs for this is difficult; the…
    • Answered

  • CSD17382F4: Back to Back ESD protection

    Resolved
    Part Number: CSD17382F4 Other Parts Discussed in Thread: CSD13381F4 , Hello, I have designed a circuit in which I have used the CSD13381F4. I realized through testing that once a voltage is present on the source, there automatically is a voltage on…
    • Resolved

  • BQ76930: BQ76930 IC pins VC1 /VC10 cell monitoring damaging while using in tida-00449 reference design pcb

    Part Number: BQ76930 Other Parts Discussed in Thread: TIDA-00449 , CSD13381F4 , BQ76920 , , BQ76940 I am using tida-00449 reference design pcb for testing 10s bms. It is found that first(VC1)/last(VC10) cell monitoring channels damaging and showing 0Volt…
    • Answered

  • 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…
    • 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…

  • 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…

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