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  • UC1843A-SP: SEE Report

    TI Thinks Resolved
    Part Number: UC1843A-SP Hi Support, Could you advise SEE radiation test report? Thanks.
    • Answered

  • UC1843A-SP: Can I override the oscillator cap discharge at RT/CT?

    Resolved
    Part Number: UC1843A-SP Other Parts Discussed in Thread: UC1843-SP , UC1843 I am planning to use the UC1843A-SP in a non-SMPS function where the frequency will be low, between 10Hz and 300Hz. Also, I need to stop the oscillator in the position where the…
    • Resolved
    • Answered

  • Transistor count for UC1843A-SP and TPS50601-RHA

    Resolved
    Other Parts Discussed in Thread: UC1843A-SP My customer would like to know if there are >100 or <100 transistors in the dies for the UC1843A-SP and TPS50601-RHA . He needs to know for reliability predictions. Please let me know and thanks for your…
    • Resolved

  • UC1901-SP: SEL info

    TI Thinks Resolved
    Part Number: UC1901-SP Other Parts Discussed in Thread: TIDA-070002 , UC1843A-SP , Team, My immediate need is to come up with an architecture for a HARD Isolated House-Keeping power supply (~50W). Similar to TIDA-070002 The PWM Controller’s (UC1843A-SP…

  • UC1843-SP: Differences in die construction for the 5962-8670402VXA, UC1843AMDREP and 5962-8670409VPA

    TI Thinks Resolved
    Part Number: UC1843-SP Other Parts Discussed in Thread: UC1843A , UC1843 Can provide the differences in die construction for 5962-8670402VXA, UC1843AMDREP and the 5962-8670409VPA? I would like to understand if the similarities and differences of the dies…
    • Answered

  • [FAQ] Looking for blank or dummy ceramic packages for mechanical samples. Are any available?

    Resolved
    Other Parts Discussed in Thread: MKT-WG16A-MS , MKT-WG10A-MS , SN0020HKH , SN0010HKU , SN00020FK Looking for mechanical package samples for trim and form setup Answer: For our Power Ceramic QMLV qualified portfolio of devices we do offer the following mechanical…
    • Resolved

  • RE: High reliability switching regulator with remote sensing feature.

    Hey Sreenivasarao, For applications with Vin <= 7 V I suggest the TPS50601A-SP For applications with Vin > 7 V I suggest the UC1843A-SP. If you are unable to use two different ones, the UC1843A-SP will likey have to work for the application. Thanks…

  • RE: UC1846-SP: Questions relating to Fabrication Process and Radiation & SEE performance.

    Hey Ashley, We have a UC1843B-SP coming out that will be similar to the UC1843A-SP but with higher radiation performance. You will need a discrete high side driver, but you would need one for the UC1846-SP anyway. The Abs max of the UC1843A-SP is 30…

  • RE: RHA Space Grade Regulators

    Hey Josh, You have quite a few topologies to choose from then. Do you have a low current requirement? One of the more popular choices is a flyback with the UC1843A-SP controller. This is better for lower currents. Thanks, Daniel

  • WEBENCH® Tools/UC1845A-SP: Design a non-isolated boost converter with WEBENCH

    TI Thinks Resolved
    Part Number: UC1845A-SP Other Parts Discussed in Thread: UC1845A , UC1845 , UC1843A-SP , UC1843A Tool/software: WEBENCH® Design Tools Hi everybody, I'd like to design a rad-hard non-isolated DC-DC boost converter using the TI UC1845A-SP PWM controller.…

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