• LM25149-Q1EVM-2100: Bode plot quetion

  

  Yian Luo

  TI Thinks Resolved

  Part Number: LM25149-Q1EVM-2100 Tool/software: Hi team, I used Bode100 to test frequency response of EVM. Vin=18V, 8A-resistive load, and the phase starts from -10° and reach 80° at cross frequency, which is only 29kHz. Could you help explain the…

  • over 1 year ago
  • Power management
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• LM25149-Q1EVM-2100: Modified evaluation board failed during testing

  

  Chris Poulsen

  TI Thinks Resolved

  Part Number: LM25149-Q1EVM-2100 Other Parts Discussed in Thread: LM25149 Tool/software: I am trying to figure out what I did to kill my LM25149-Q1EVM-2100. I want to use the LM25149 as a battery charger for a 12 Volt SLA battery. For that I need an…

  • over 1 year ago
  • Power management
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• LM25149-Q1EVM-2100: output voltage ripple

  

  Mingkang Song

  TI Thinks Resolved

  Part Number: LM25149-Q1EVM-2100 Other Parts Discussed in Thread: LM25149-Q1 When I measured the output voltage ripple on the LM25149-Q1 EVM board, I found that the ripple is shown below and is not a standard triangle wave like in the user's guide figure…

  • over 1 year ago
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• LM25149-Q1EVM-2100: Behavior of short circuit protection

  

  Gilbert Lien

  TI Thinks Resolved

  Part Number: LM25149-Q1EVM-2100 Hi team, My customer is using our LM25149-Q1EVM and do the short circuit protection test by the e-load. for the delay time of ISNS+ is about 65ns, the current limit threshold is 60mV and we use 30V as input, the…

  • over 2 years ago
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• LM25149-Q1EVM-2100: Testing LM25148 on LM25149 EVM

  

  Cindy Chang

  TI Thinks Resolved

  Part Number: LM25149-Q1EVM-2100 Other Parts Discussed in Thread: LM25148 , LM25149 Dear expert, Customer is evaluating LM25148/9 and has some questions: 1. Correct me if I’m wrong, LM25148 and LM25149 both share the same EVB which uses LM25149.…

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

• LM25149-Q1EVM-2100: Free Convection Airflow / No Airflow

  

  Shota Mago

  Resolved

  Part Number: LM25149-Q1EVM-2100 Other Parts Discussed in Thread: LM25149-Q1 Hi team, What are detail condition of "Free Convection Airflow" and "No Airflow"? LM25149-Q1 EVM User's Guide states "Free Convection Airflow" at Thermal Performance. While…

  • Resolved

  • over 2 years ago
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  • Power management forum
Answered

• LM25149-Q1EVM-2100: LM25149-Q1

  

  Lisheng Shi

  Resolved

  Part Number: LM25149-Q1EVM-2100 Other Parts Discussed in Thread: LM25149-Q1 Hi Team, 1. Do you have a reference schematic with dual-phase operation? 2. How to build a dual-phase board by modifying 2 LM25149-Q1 EVMs? Thanks, Lisheng

  • Resolved

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

• LM25149-Q1EVM-2100: deadtime

  

  Mona Guo

  Resolved

  Part Number: LM25149-Q1EVM-2100 Other Parts Discussed in Thread: LM25149 Hi, team Do we have min and max deadtime value for LM25149? Cause I only see there is typical value on datasheet.

  • Resolved

  • over 3 years ago
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• LM25149-Q1EVM-2100: 3.3V output

  

  Mona Guo

  TI Thinks Resolved

  Part Number: LM25149-Q1EVM-2100 Hi, team When set output to 3.3V, Do I need to both connect FB to VDDA and VCCX to GND? Is VCCX to GND must have?

  • over 4 years ago
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Answered

• LM5143-Q1EVM-2100: EVM design question.

  

  Leo Ma

  Resolved

  Part Number: LM5143-Q1EVM-2100 Other Parts Discussed in Thread: LM5143-Q1 Tool/software: Hi Expert, Have a nice day! I have question need your professional support: About LM5143-Q1’s EVM, what is the function of R10, C30, R19 and R20? Thanks…

  • Resolved

  • 3 months ago
  • Power management
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