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Showing 44 results View by: Thread Post Sort by
  • UC3844: UC3844D8TR SPICE model is not working properly

    Premkumar Panneerselvam
    Premkumar Panneerselvam
    TI Thinks Resolved
    Part Number: UC3844 Tool/software: Dear Sir / Madam, We are using the part " UC3844D8TR " in one of our building automation product. Downloaded the " UC3844D8TR " part SPICE model from the TI website. When we do the circuit simulation…
    • 11 months ago
    • Simulation, hardware & system design tools
    • Simulation, hardware & system design tools forum
  • UC3844: UC3844 and TL 431 and optocoupler PSpic module

    zwang12
    zwang12
    TI Thinks Resolved
    Part Number: UC3844 Other Parts Discussed in Thread: UCC38C44 , UCC3804 Could you help to find a available PSpic module for UC3844 and TL 431 and optocoupler, I download online module for UC3844 and TL 431, but can't use it in ORCAD PSpic tools, noted that…
    • over 1 year ago
    • Power management
    • Power management forum
  • UC3844: LT spice model file required for simulation of flyback smps design.

    Boddu Suresh Kumar
    Boddu Suresh Kumar
    TI Thinks Resolved
    Part Number: UC3844 LT spice model file is required for this part to simulate flyback smps design performance. Kindly forward the supporting simulation model file for this part. Thanks in advance.
    • over 1 year ago
    • Power management
    • Power management forum
  • UC3844: Reference design sourcing

    Allen Lu
    Allen Lu
    TI Thinks Resolved
    Part Number: UC3844 Other Parts Discussed in Thread: LM5021 Hi Team: i am sourcing a solution as below requirement for the customer, I try to use webench and it shows UC3844AN. Just wanted to confirm if there are any new device recommendations? tks! …
    • over 2 years ago
    • Power management
    • Power management forum
  • Answered
  • UC3844: slop compensation for D <0.5

    vasudev mr
    vasudev mr
    Resolved
    Part Number: UC3844 Hi I am Vasudev , I am designing 1.5kw 2 switch forward converter for which I am using UC3844 based current mode control to operate only in constant current mode at the output(of course with limited voltage range) . I am aware that for…
    • Resolved
    • over 2 years ago
    • Power management
    • Power management forum
  • Answered
  • UC3844: Uc3844

    Karthik Venkateshaiah
    Karthik Venkateshaiah
    Resolved
    Part Number: UC3844 Hi, I have designed a 30V@0.5A DC DC boost converter (Nominal input voltage = 28V). I am facing issues in optocoupler feedback controlling. a) If I connect Optocoupler Pin(3) to ground and optocoupler Pin(4) to FB pin (Pin 2) of UC3844AD…
    • Resolved
    • over 3 years ago
    • Power management
    • Power management forum
  • WEBENCH® Tools/UC3844: UC3844

    user5859726
    user5859726
    TI Thinks Resolved
    Part Number: UC3844 Other Parts Discussed in Thread: UC2844 , Tool/software: WEBENCH® Design Tools Does this calculation tool apply to UC2844? I want to use UC2844 for the design, cross check with WEBENCH. Thanks Tiger
    • over 4 years ago
    • Power management
    • Power management forum
  • UC3844: Active life cycle of UC3844 ( Upto how many years UC 3844 Available Active)

    Chetan  Patel
    Chetan Patel
    TI Thinks Resolved
    Part Number: UC3844 Other Parts Discussed in Thread: UC2844 Dear Sir, We are using UC3844 PWM Control IC in our various SMPS cards. we want to use same IC in one of our new development Product for that we want to know that active life cycle of UC3844…
    • over 4 years ago
    • Power management
    • Power management forum
  • UC3844: calculation tool of UC3844

    user021864
    user021864
    TI Thinks Resolved
    Part Number: UC3844 Other Parts Discussed in Thread: UC2844 , Hi, My customer is wondering if there are calculation for this part? since it can't be find on the internet. There is another question is that can UC3844 being used with UC2844 simulation…
    • over 6 years ago
    • Power management
    • Power management forum
  • UC3844: How to perform loop analysis on multi-channel flyback power supply

    zoujiangyilang
    zoujiangyilang
    TI Thinks Resolved
    Part Number: UC3844 Hello: As shown in the above diagram, it is a flyback power supply for the primary winding feedback control (red line).In addition, there are 3 outputs (green lines) in the secondary. If loop analysis is performed on this flyback power…
    • over 5 years ago
    • Power management
    • Power management forum
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