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  • ISO5452-Q1: Input gate pulse getting disrupted at Pin 10 (IN+) of ISO5452QDWQ1 Driver IC

    TI Thinks Resolved
    Part Number: ISO5452-Q1 Other Parts Discussed in Thread: ISO5452 Hi Ti, I am performing short circuit type -1 test based on AQG324 standard. I am using an external wire to short the High side switch and using a function generator to give gate pulse…

  • WEBENCH® Tools/ISO5452-Q1: Spice Model Issue of ISO5852 (for ISO5452).. Desat operating time is greater than 5 Us and no soft turn off..

    Part Number: ISO5452-Q1 Other Parts Discussed in Thread: ISO5452 Tool/software: WEBENCH® Design Tools Hello, Need your immediate support I downloaded unencrypted spice model of ISO5852SDW for ISO5452. I am working in Simetrix which can support this…

  • ISO5452-Q1: 软关断功能异常

    TI Thinks Resolved
    Part Number: ISO5452-Q1 Other Parts Discussed in Thread: ISO5452 , UCC21750 您好， 想问下，ISO5452芯片是否有软关断功能丢失的情况？从Datasheet得知，desat触发阈值时，芯片阻断输出，将OUTL拉至低电平持续2us。而实际结果是只有600ns左右，相比正常的关断时间只多了200ns左右。如图所示：黄色CH1通道为desat脚外部电容充电,蓝色CH2为芯片门极输出，触发阈值后，门极输出下降时间为600ns左右…
    • Answered

  • ISO5452-Q1: FLT Pin Behavior When UVLO1 and UVLO2 happen

    Resolved
    Part Number: ISO5452-Q1 Hi Team, Either UVLO1 or UVLO2 occurs, the RDY pin output goes low. What about the FLT Pin behaviors under UVLO1 or UVLO2? And when desaturation is active, the RDY will go low and then go high, does this design to prevent FLT…
    • Resolved
    • Answered

  • TINA/Spice/ISO5452-Q1: Pspice Model

    Resolved
    Part Number: ISO5452-Q1 Other Parts Discussed in Thread: TINA-TI , , ISO5451 Tool/software: TINA-TI or Spice Models Hi, Could you please send me the Pspice Model of ISO5452-Q1, wayne.liu@ti.com Thanks.
    • Resolved

  • RE: ISO5452-Q1: Adjusting DESAT Threshold with Zener Diode

    Hi Grant, Thanks for your interest in ISO5452-Q1. I'm an applications engineer in the high power drivers group and can help answer your question. I also can't find any zeners which have their listed knee at the 0.5-mA desat charge current. Looking…

  • ISO5452-Q1: Can RDY and FLT be connected together?

    TI Thinks Resolved
    Part Number: ISO5452-Q1 Hi, My customer would like to connect RDY and FLT together to save MCU GPIO, so in this case, when FLT is set to 0, can we pull RST low and make FLT goes back to high and the chip goes back to normal? Because Datasheet Figure…

  • ISO5452-Q1: Input to Disable Gate Driver Outputs?

    Part Number: ISO5452-Q1 Other Parts Discussed in Thread: ISO5452 , UCC21520 Hello, For the ISO5452, can I drive the RESET pin with an active low signal to disable the outputs? I have windowed comparators that trigger for overcurrent events on the 3…
    • Answered

  • ISO5452-Q1: Is it fine to add pull up to the DESAT, to increase the current flow to get a lower over current detection limit?

    Resolved
    Part Number: ISO5452-Q1 Hello, Is it fine to add pull up to the DESAT, to increase the current flow to get a lower over current detection limit? Best regards, Anton
    • Resolved
    • Answered

  • [FAQ] UCC21750: How can we Increase DESAT Charging current for faster Short-circuit detection time in UCC217xx and ISO5x5x?

    Resolved
    Other Parts Discussed in Thread: UCC21759-Q1 , UCC21750 , ISO5451-Q1 , ISO5851 , ISO5452 , ISO5851-Q1 , UCC21710 , ISO5852S-Q1 , ISO5451 , ISO5452-Q1 , ISO5852S , UCC21710-Q1 , ISO5852S-EP , UCC21750-Q1 For SiC driving, we need faster short-circuit detection…
    • Resolved

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