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  • UCC21520-Q1: Gate Drive Strategy for Paralleled MOSFETs in PSFB Topology

    TI Thinks Resolved
    Part Number: UCC21520-Q1 Other Parts Discussed in Thread: CSD19536KTT Tool/software: Dear Ti, We are considering connecting the input MOSFETs in parallel on the PSFB input side to increase the current capacity, and we will be using the UCC21520-Q1…
    • Answered

  • UCC21520: External Diode

    Resolved
    Part Number: UCC21520 Tool/software: Hi team, My customer is using our UCC21520 but met some negative ringing at OUTB pin, so they want to add an external diode as below. And the leakage is 20mA. If this is acceptable action for our part and any…
    • Resolved
    • Answered

  • UCC21520: Updated DT pin description to recommend ≤1nF capacitor on DT pin

    Resolved
    Part Number: UCC21520 Tool/software: Hi, you have an update on the datasheet regarding capacitor on DT pin. We have 100nF on our design, what's the impact? It's mandatory to change?
    • Resolved
    • Answered

  • UCC21520: Question: I_VCCI quiescent supply current & supply power at VCCI =5V - 18V

    Resolved
    Part Number: UCC21520 Tool/software: Hi team, Could you give me the imformation about the topic in question? 1. I_VCCI quiescent supply current at VCCI =5V - 18V 2. Supply power to INPUT SIDE at VCCI =5V - 18V When I tested UCC21520DWR,…
    • Resolved

  • UCC21520: Convergence problem of a designed Gate driver

    TI Thinks Resolved
    Part Number: UCC21520 Tool/software: Dear whom it may concern, Hi, I am designing a half-bridge gatedriver circuit with a bias circuit to drive the 800V mosfet. The basic idea is to generate a biased 20V voltage across the GS pin of the mosfet when…
    • Answered

  • UCC21220: Responses when DIS pin is opened / UCC21220 and UCC21520

    Resolved
    Part Number: UCC21220 Other Parts Discussed in Thread: UCC21520 Tool/software: Hello, Can I ask if the parts will be enabled or disabled when their DIS pins are opened ? The descriptions in their datasheets sounded differently for me when compared tables…
    • Resolved

  • UCC21520: ucc21520 abnormal output

    Part Number: UCC21520 Hi expert, In the SOP project, my customer found that UCC21520 has a case of abnormal output. Check that the low-voltage side is working normally. The high-voltage side customer has measured the auxiliary power supply current…

  • UCC21520: UCC21520 implementation

    TI Thinks Resolved
    Part Number: UCC21520 Dear technical support team, I am developing the 1.2KV voltage switching circuits with UCC21520, which required to achieve dv/dt ramp rate of 40V/ns. Could you please advise what are the considerations of the high voltage switch…

  • UCC21520: Simplis model

    TI Thinks Resolved
    Part Number: UCC21520 Other Parts Discussed in Thread: UCC21550 , UCC21550-Q1 Tool/software: Hi TI Team, Please provide the simplis model of the UCC21520 driver IC. In the e2e forum, I downloaded the simplis test circuit. Which is running no issue.…

  • UCC21520: Output current at 350kHz

    TI Thinks Resolved
    Part Number: UCC21520 Tool/software: Hi, What is the output current specification of UCC21520DWR at 350KHz? There is no relevant curve in the datasheet. The specification value in the datasheet is tested at 1KHz. Best regards! Ethan

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