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  Abhijeet Abhijeet1

  • 3 days ago
  • Power management
  • Power management forum

  LM5146-Q1: Input/Output transience

  TI Thinks Resolved

  Part Number: LM5146-Q1 Hi there I am facing an issue with the LM5146 buck. I am using it for a 58V to 12V 5A application. When the input of "58V" is given to the buck through a two pin connector, a huge transience is observed at buck input...
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  Don Cutler

  • 26 days ago
  • Power management
  • Power management forum

  LM5146-Q1: Can Comp Pin Be Driven Directly?

  TI Thinks Resolved

  Part Number: LM5146-Q1 Hi, Please see attached preliminary PDF schematic which shows one of two Buck Converters. I am trying to use two LM5146 as variable current sources using local output shunts to create the voltage feedback. The shunt output is...
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  Timothy Hegarty

  • 22 days ago
  • Power management
  • Power management forum

  RE: LM5146-Q1: Buck Converter

  Sure, try a 2.2Ohm and 470pF from SW to GND. And add a 10 Ohm boot resistor.
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  Timothy Hegarty

  • 1 month ago
  • Power management
  • Power management forum

  RE: LM5146-Q1: The High Side Mosfet fails with a DC Motor Load

  Hi Naman, Here are some comments: Inductor power dissipation in the quickstart file is 16W at 24A - need a lower DCR. high-side MOSFET loss is also way to high. Each 5 x 6mm package can generally dissipate 1W. Use 60V or 80V devices (100V...
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  Kaji@PAN

  • 4 months ago
  • Power management
  • Power management forum

  LM5146-Q1: Are overcurrent protection and thermal shutdown 100% tested?

  • Resolved

  Part Number: LM5146 - Q1 Hi, I am considering using the LM5146QRGYTQ1 device. (Question
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  user5163865

  • 4 months ago
  • Power management
  • Power management forum

  LM5146-Q1: internal structure / section drawing

  • Resolved

  Part Number: LM5146 - Q1 Hi, Can TI provide "internal structure / section drawing" to customers
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  Dajon McGill

  • 4 months ago
  • Power management
  • Power management forum

  LM5146-Q1: Stops working on input transient

  • Resolved

  Part Number: LM5146 - Q1 Hey Team, I have a customer that is using the LM5146 - Q1 . The board has quite
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  Pawel Wozniak1

  • 4 months ago
  • Power management
  • Power management forum

  LM5146-Q1: LM5146-Q1 high no load input current

  TI Thinks Resolved

  Part Number: LM5146-Q1 Hi, I've got a problem with one of the designs based on LM5146. All seems to function correctly except for quite high input current as for no load (it consumes roughly 50-60 mA of current depending on Vin). We've manufactured...
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  Dinar Talibullin1

  • 4 months ago
  • Power management
  • Power management forum

  LM5146-Q1: WEBENCH® Tools/LM5146-Q1:

  TI Thinks Resolved

  Part Number: LM5146-Q1 Hello. I have a problem with LM5146 controller on my board. It`s temperature is 100C! Vin=56V, Vout=12V, I load = 0.3A. Tell me please how can i fix that? I have attached schematic - i have generate it on ti webbench power constructor...
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  Mahendra Patel1

  • 3 months ago
  • Power management
  • Power management forum

  LM5146-Q1: how does pre biased startup work

  TI Thinks Resolved

  Part Number: LM5146-Q1 Hello Team, My customer is doing design analysis of LM5146-Q1 based design. They want to understand mechanism for pre-biased startup, as they always have a battery connected at the output. This explanation will help them to...

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