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  • UC1845-SP: Change in Thermal Resistance from previous datasheet release?

    Resolved
    Part Number: UC1845-SP Tool/software: Hi, I noticed that was a significant increase on the thermal resistances, junction to board from the previous version compared to the most updated version. What cause these values to increase? Also is there any thermal…
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  • UC1845A-SP: LCCC (FK) 20 Package Drawings Missing!

    Resolved
    Part Number: UC1845A-SP Hi, Please provide detailed package drawing for the LCCC-20 quickly, and as a .pdf (not autocad). Part # 5962-8670408VXA (uc1845alqmlv), LDC 1915A. The datasheet for the UC1845A-SP does NOT have the LCCC-20 (FK) package drawing…
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  • UC1843-SP: Comparison Space grade PWM Controllers

    TI Thinks Resolved
    Part Number: UC1843-SP Other Parts Discussed in Thread: UC1845 , UC1843 , , UC1845-SP Hi Sir, I wanted to use space grade PWM controller for forward converter with current mode control. There are many space grade ICs available like: UC1843, UC1845 what are…
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  • UC1845A-SP: Oscillator equivalent circuit

    Resolved
    Part Number: UC1845A-SP Other Parts Discussed in Thread: UC1845 For the UC1845, do we have an equivalent circuit diagram for the Rt/Ct pin internals that is similar to other controllers that use separate Rt & Ct connections? (see example below): …
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  • [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 , TPS7H1111-SP , TPS7H4011-SP , TPS7H6003-SP , SN00020FK Looking for mechanical package samples for trim and form setup Answer: For our Space Power Ceramic QMLV qualified portfolio…
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  • 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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  • [FAQ] PCB footprint, trim/form profiles, solder dipping and reflow recommendations of ceramic space power devices

    Resolved
    Could TI please provide guidance for how to trim/form the leads of ceramic devices and provide the PCB footprints so we can integrate into our system design?
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  • [FAQ] What are the normal lead-times for TI space-grade power parts?

    Resolved
    Lead-times and available finished good inventory vary by device and change over time, but we are dedicated to providing quick and easy access to all our devices via TI.com. To help provide more transparency into TI’s available inventory, in late 2020…
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  • [FAQ] I need help interpreting or finding SMD part numbers for TI Military and Space grade devices?

    Resolved
    I need help interpreting or finding SMD part numbers for TI Military and Space grade devices? Answer: There are several good references available to help answer questions with Defense Logistics Agency (DLA) Standard Microcircuit Drawings (SMD) and legacy…
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