• LM5109B: Possibility for a direct path mode instead of switching mode

  

  Max Trybunksyi

  TI Thinks Resolved

  Part Number: LM5109B Other Parts Discussed in Thread: TIDA-010042 , LM5109 Good day, We are using the LM5109 driver solution in interleaved buck converter design (see attached schematic). We used TIDA-010042 as a reference, just FYI. Apart from the buck operation…

  • 3 months ago
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• LM5109B: Half bridge converter with strange high peaks

  

  Julien Galtié

  Part Number: LM5109B Other Parts Discussed in Thread: LM5109 Dear Support, I would need some help in a LM5109BMA Half-Bridge Converter design. The LM5109 mounting: 2x PWM signals control the LM5109BMA inputs which drives 2x Power MOSFET (Idmax = 56A) and…

  • 4 months ago
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Answered

• LM5109B-Q1: VDD below 8V

  

  Chuqiang Wen

  Resolved

  Part Number: LM5109B-Q1 Other Parts Discussed in Thread: LM5109B Hi Expert, There have a question regarding to the VDD of LM5109B-Q1. The recommended operating voltage for VDD is 8V to 14V. Customer would like to use a simple linear regulator to supply…

  • Resolved

  • 5 months ago
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Answered

• LM5109B: LO/HO output state in UVLO

  

  Alfred Fuchs1

  Resolved

  Part Number: LM5109B What is actually the state of the HO/LO outputs in case of UVLO? Are they high-impedance or driven low (as long as possible)?

  • Resolved

  • 8 months ago
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Answered

• LM5109B: IC not functioning

  

  Lidong Yu

  Resolved

  Part Number: LM5109B Other Parts Discussed in Thread: LM5109 I am having troubble using your product as a high side NMOS switch in my design. High-side gate driver output does not work as stated in datasheet. The voltage on HO pin does not rise above Vin…

  • Resolved

  • 10 months ago
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• LM5109B: LM5109B delay matching question

  

  user6360875

  TI Thinks Resolved

  Part Number: LM5109B Hi TI friend About LM5109B parameter , I have one question : plz help --what is meaning of delay match ? see from the pic as below tMON: you can see LO and HO will be high at some time; plz

  • over 1 year ago
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• LM5109B: spice simulation using the TI model does not compute

  

  John Winters

  Part Number: LM5109B Other Parts Discussed in Thread: PSPICE-FOR-TI Trying to use the spice model of the LM5109B in LTSPICE. I get an error: However, if I just put the part by itself in a schematic, it just runs forever with no error message, as if it…

  • 11 months ago
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• LM5109B: Used as 2-ch independent driver

  

  Kazuto Tatsumi

  TI Thinks Resolved

  Part Number: LM5109B Hi team, My customer is considering to use LM5109B half-bridge driver as 2-ch independent driver. In this case HS is shorted to GND. Is this usecase no problem? If it's okay, is there any point to be cared? Regards, Kazuto

  • over 1 year ago
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• LM5109B: How does the gate driver function

  

  Lauren Mayfield

  TI Thinks Resolved

  Part Number: LM5109B Hi team, My customer has the following question: How does the driver drive the high-side FET with HV ~48V when VDD has to be <18V? I.e. how does the gate driver function? Does it use a charge pump or something to generate voltages…

  • over 1 year ago
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• LM5109B-Q1: LM5109B-Q1 as a high side gate driver

  

  Taru Kapoor

  TI Thinks Resolved

  Part Number: LM5109B-Q1 The customer is looking to use LM5109B-Q1 as a high side gate driver. Please confirm if the Low side driver can be left as Do Not Connect or Grounded? Will this have any effect on the charge pump, affecting the High Side Driver…

  • over 2 years ago
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