• UC1843: Boost converter design

  

  Johnson John

  TI Thinks Resolved

  Part Number: UC1843 Hello, Can you please clarify whether this chip (UC1843) can be used for Boost converter to meet the following requirements? Vin range : +20VDC to +140VDC Vout Output voltage : +70VDC Output current : 0.9A We want to pass through the…

  • 5 months ago
  • Power management
  • Power management forum

• RE: UC1843: Cold start delay -40C

  

  Hong Huang

  Hi, As long time no response, I will close this thread. If you need additional support, please re-open this thread or create a new thread.

  • 5 months ago
  • Power management
  • Power management forum
Answered

• UC2843: Is the die exactly the same between UC2843 vs UC1843?

  

  Haiming Deng

  Resolved

  Part Number: UC2843 Are there's differences in technology/design/fab between them? Thanks!

  • Resolved

  • 4 months ago
  • Power management
  • Power management forum
Answered

• UC1843: quiescent current

  

  Ivy Jin

  Resolved

  Part Number: UC1843 Other Parts Discussed in Thread: UCC28C43 Hi team, The UC1843/5 can be shut down by two methods, may I ask the quiescent current of UC1843/5 in the shutdown mode? Thanks in advance! Regards, Ivy

  • Resolved

  • 7 months ago
  • Power management
  • Power management forum

• UC1843-SP: adjust output voltage

  

  Adam Daluga

  Part Number: UC1843-SP Other Parts Discussed in Thread: TPS7H5001-SP Hello, I have a question about the UC1843-SP. I am working through the datasheet and using the TINA TI simulation “slum213” for the buck converter 18V to 5V. I looked through…

  • 9 months ago
  • Power management
  • Power management forum
Answered

• UC1843-SP: SEL Sensitivity

  

  Jejomar Ildefonso

  Resolved

  Part Number: UC1843-SP Other Parts Discussed in Thread: LM139AQML-SP Hi Team, We're almost certain but we need to confirm if the parts UC1843-SP and LM139AQML-SP are non SEL (Single Event Latch-up) sensitive due to their bipolar process. I've also seen…

  • Resolved

  • 10 months ago
  • Power management
  • Power management forum

• UC1843: COMP pin of one of the controllers to the COMP pin of the other

  

  Marvin Cantos

  TI Thinks Resolved

  Part Number: UC1843 Hi Experts, Good day. I am posting this concern on behalf of the customer. Below is the customer's full transcript of the inquiry. "I would like to use two UC1843 in multiphase operation and provide a current sharing thanks to…

  • over 1 year ago
  • Power management
  • Power management forum
Answered

• UC1843-HIREL: Flyback transformer selection

  

  Arjunan Anandan

  Resolved

  Part Number: UC1843-HIREL I am not able to get the part no of transformer shown in the application circuit " OFFLINE FLYBACK REGULATOR" Page No : 8. My output voltage requirement is +12V Dc, -12 VDC and 32 V DC.

  • Resolved

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

• UC1843: Difference between UC1843J and UC1843J883B

  

  Ba Dong

  TI Thinks Resolved

  Part Number: UC1843 Hi Team, Please help to provide the information below. Difference between UC1843J and UC1843J883B B.R. Eric

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

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

  

  Juan Diaz18

  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…

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

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