• RE: LM25019: LM25019SD/NOPB

  

  Niranjan Nair

  Hi Ivy, I will close the thread for now as it has been some time. Feel free to reopen if needed. Regards, Niranjan

  • 2 months ago
  • Power management
  • Power management forum
Answered

• LM25019: LM27762

  

  Ivy Li

  Resolved

  Part Number: LM25019 Other Parts Discussed in Thread: TPS61093 Tool/software: Hello all, Please recommend the power supply solutions with the following parameters. VIN=24V Iout_max=11mA The output needs to be a ±15V power supply after isolation.…

  • Resolved

  • 5 months ago
  • Simulation, hardware & system design tools
  • Simulation, hardware & system design tools forum
Answered

• RE: LM5185: Power chip selection

  

  Youhao Xi

  Resolved

  Hi Ivy, You may consider a LM25019 in a fly-buck topology. Please refer to https://www.ti.com/lit/ug/snva611b/snva611b.pdf, which was using LM25017 but you can replace the IC with LM25019 for your 40mA load applications. Thanks, Youhao

  • 5 months ago
  • Power management
  • Power management forum

• LM25019: Isolation rating of this spec

  

  Lauren Mayfield

  TI Thinks Resolved

  Part Number: LM25019 Other Parts Discussed in Thread: LM5019 , TIDA-010006 This spec falls under the isolated flybuck converters line but I don't see any information regarding the isolation specs on the datasheet. Is it rated for 1.5kVrms or 3kVrms isolation…

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

• LM25019: I want to use lm25019 ic in Flybuck topology with output of 5.2 volt at isolated side

  

  sourabh tokikar

  TI Thinks Resolved

  Part Number: LM25019 Other Parts Discussed in Thread: LM5017 Good morning I currently using the lm25019 ic for my project, but I read some article on Flybuck topology and read data on lm5017-19 ic. I simply used 1:1 coupled inductor instead of single…

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

• Lm25019

  

  sourabh tokikar

  TI Thinks Resolved

  Other Parts Discussed in Thread: LM25019 I am having a issue with the formula given in the datasheet of lm25019 like calculation of switching frequency, inductor selection formula. Can you help me with these problems. Regards Sourabh

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

• LM25019: LM25019 under voltage hysteresis value

  

  user1312478

  Resolved

  Part Number: LM25019 hello, i have a question for the LM25019 under voltage hysteresis value, see below description that from datasheet chapter 7.3.9 (Undervoltage Detector) "UVLO hysteresis is accomplished with an internal 20-μA current source that is…

  • Resolved

  • over 7 years ago
  • Power management
  • Power management forum

• LM25019: EMI / EMC filter for LM25019

  

  Premsagar S87

  Part Number: LM25019 We are working on the Isolated DC-DC converter with 24VDC input and 5VDC @ 10mA (Low cost solution) . With my initial search in TI Webench, found LM25019 which suit our requirement and has following queries regarding same Primary…

  • over 7 years ago
  • Power management
  • Power management forum
Answered

• LM25019: Variation obseved in calculated and measured fsw

  

  Abhishek Borkar

  Resolved

  Part Number: LM25019 Following are the specifications used to design a 15.2V sensor power supply, Vin = 24V ± 4%, Vout = 15.2V ± 4%, Iout = 90mA, fsw = 800KHz Following are the component values used, RFB1 = 1K, RFB2 = 11.5K, RON = 180K,…

  • Resolved

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

• LM25019: Which is used, Vcc or External bias

  

  Hirotsugu Kobayashi

  Resolved

  Part Number: LM25019 Hi, team. When VCC and external bias voltage is the same, which is used? Best Regards,

  • Resolved

  • over 7 years ago
  • Power management
  • Power management forum

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