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  • CSD19501KCS: Clarification of a parameter in MOTOR-DRIVE-FET-LOSS-CALC

    TI Thinks Resolved
    Part Number: CSD19501KCS Other Parts Discussed in Thread: MOTOR-DRIVE-FET-LOSS-CALC , Hi, In the MOTOR-DRIVE-FET-LOSS-CALC Excel sheet, the equations tab contains an equation to calculate RDS(on) with temperature. But I am unable to understand what ΔRDS…
    • Answered

  • LM5145DESIGN-CALC: MOSFET loss estimation

    Resolved
    Part Number: LM5145DESIGN-CALC Other Parts Discussed in Thread: LM5145 Hello team, I have a question about LM5145 design calculator. MOSFET loss curve doesn't change when I change Qrr value of Low side FET. Only efficiency curve is changing by the parameter…
    • Resolved
    • Answered

  • DRV8244-Q1: Units for Calculating Switching Losses

    Resolved
    Part Number: DRV8244-Q1 Regarding the switching loss equation in note (4) of datasheet 7.5.14, what are the units for each variable? ex.) Psw [W], Iload [A], etc.
    • Resolved

  • LP8863-Q1: switching FET rise and fall time

    Part Number: LP8863-Q1 Hi team, I see in datasheet it's required that typical rise/fall time of switching FET should be less than 10ns. My customer use FET with around 20ns. What's the impact? Thanks.

  • BQ76952: DSG FETs shut off when under load

    Part Number: BQ76952 Hi Everyone, We are using Test Mode, and DSGTEST() 0x0020 to manually test enabling the Discharge FETs We are able to enable our Discharge FETs when there is no load connected - only a voltmeter and oscilloscope. We see 48 volts on…

  • RE: TPS22916: Query on Load sharing using Load switch

    Hi Sharu, Yes, it looks like the circuit in the picture you sent would work well. I calculate that the respective TPS22916 will be disabled when only (0.0028 / 2 = 0.0014V / (2 * 0.6) = 11.7mA) of current flows from the higher to the lower voltage battery…

  • LM25149: Design Spreadsheet FET loss calculation

    TI Thinks Resolved
    Part Number: LM25149 Other Parts Discussed in Thread: CSD18540Q5B , LM5149 , , LM5149-Q1EVM-400 , LM5148 I'm working a design with the LM25149 with Vin = 36V (nom) Vout = 12V @ 15A max load. Webench generates a design at Fsw = 250 kHz using CSD18540Q5B…

  • RE: CSD19535KTT: Characteristics needed: Typical switching energy losses VS drain-source current

    HI Saminathan, Please let me know if your issue has been resolved. Best Regards, John

  • LMG3422R030: Switching loss data

    TI Thinks Resolved
    Part Number: LMG3422R030 The turn-on loss vs Id curve in Fig. 7-10 in the datasheet, Does than loss include both the devices in the half-bridge? will that be half for one device? Thanks, Nidhi Haryani, PhD Member of R&D Staff Delta Electronics (Americas…
    • Answered

  • TPSM82823: Statistical dispersion for High-side FET switch current limit

    Resolved
    Part Number: TPSM82823 Hi team, Customer would like to know about statistical dispersion for their evaluation. As for High-side FET switch current limit in the below table, Is it correct to assume that there is a normally distributed variation in the…
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