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

  • 3 months ago
  • Power management
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Answered

• LM25149: CNFG pin controlled by application

  

  Petr Zkrat

  Resolved

  Part Number: LM25149 Hello, datasheet says that active EMI is automatically enabled at 40% of the current limit. However, we are unsure how will conducted emissions look like in our application, at which level they will become over the line, therefore…

  • Resolved

  • 16 days ago
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• LM25149-Q1: Behavior at the start of external CLK input

  

  Kiyoshi Koyama

  Part Number: LM25149-Q1 Hello support team, I have a question about the behavior at the start of external CLK input. When I start the external CLK input to the PFM / SYNC pin of the LM25149-Q1 as shown in the figure below, it once goes into PFM operation…

  • 13 days ago
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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

  • 1 month ago
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Answered

• LM25149-Q1: VOUT short to battery

  

  Kiyoshi Koyama

  Resolved

  Part Number: LM25149-Q1 Hello support team, How does the LM25149-Q1 operate if the VOUT is shorted to the battery (12V) during FPWM operation? I am wondering if the current to the LFET is limited or if the VIN is boosted. Thanks,

  • Resolved

  • 1 month ago
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• LM25149-Q1: PSPICE MODEL FOR LM25149-Q1

  

  Anne Vilasini

  TI Thinks Resolved

  Part Number: LM25149-Q1 Hello team, I am using LM25149-Q1 in my project application and I need SPICE model of the part for further analysis. Kindly provide the same Thanks and Regards, Anne

  • 5 months ago
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• LM25149: Adding more phases

  

  Téo Robert

  TI Thinks Resolved

  Part Number: LM25149 Hi, I read in the LM25149 datasheet that it is limited to dual phase operation (see image). Why is it not possible to add more phases ? My understanding is that tieing all the EXTCOMP pins together and installing 90.9 kOhm resistors…

  • 3 months ago
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• LM25149-Q1: lm25149 constant output 3.3V

  

  Meng Liu

  TI Thinks Resolved

  Part Number: LM25149-Q1 Other Parts Discussed in Thread: LM5149-LM25149DESIGN-CALC Hi support team I want constant output 3.3V through connect FB to VDDA. but I don't know loop circuit how to control in this situation?

  • 6 months ago
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Answered

• LM25149-Q1: PG Pullup Power Supply

  

  Kiyoshi Koyama

  Resolved

  Part Number: LM25149-Q1 Other Parts Discussed in Thread: LM25149 Hello support team, Please let me know if it is okay to apply the PG pull-up power supply with the LM25149 disabled (VCC=0V). Since the PG becomes a SYNCOUT depending on the configuration…

  • Resolved

  • 4 months ago
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Answered

• LM25148-Q1: Difference from LM25149-Q1

  

  Yuta Kurimoto

  Resolved

  Part Number: LM25148-Q1 Other Parts Discussed in Thread: LM25149-Q1 , Hello Team, I have question about LM25148-Q1 vs LM25149-Q1. Q. Are these difference only without AFE(LM25148-Q1) and with AEF(LM25149-Q1)? Q. For dual-phase operation, can we use LM25149…

  • Resolved

  • 4 months ago
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