• UC3844: UC3844 and TL 431 and optocoupler PSpic module

  

  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…

  • over 2 years ago
  • Power management
  • Power management forum

• UC3844: UC3844D8TR SPICE model is not working properly

  

  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 in LTSpice…

  • over 1 year ago
  • Simulation, hardware & system design tools
  • Simulation, hardware & system design tools forum
Answered

• UC3844: Uc3844

  

  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…

  • Resolved

  • over 4 years ago
  • Power management
  • Power management forum

• UC3844: LT spice model file required for simulation of flyback smps design.

  

  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 2 years ago
  • Power management
  • Power management forum

• UC3844: Reference design sourcing

  

  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

  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…

  • Resolved

  • over 3 years ago
  • Power management
  • Power management forum

• RE: WEBENCH® Tools/UC3844: UC3844

  

  Hong Huang

  Hi, Yes, the same calculation tool for UC3844 is ok to be used for UC2844.

  • over 5 years ago
  • Power management
  • Power management forum

• UC3844: Active life cycle of UC3844 ( Upto how many years UC 3844 Available Active)

  

  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 5 years ago
  • Power management
  • Power management forum

• UC3844: calculation tool of UC3844

  

  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
Answered

• WEBENCH® Tools/UC3844: Webbench design alert

  

  vinod sharma

  Resolved

  Part Number: UC3844 Tool/software: WEBENCH® Design Tools Hi, We are trying to simulate below isolated power supply in web-bench. Input: 20-28 VDC Output: 90VDC/1.25Amp CC/CV isolated Webbench generate the circuit using UC3844AN & gives below error…

  • Resolved

  • over 6 years ago
  • Power management
  • Power management forum

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