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  Betty Guo

  • 2 months ago
  • Power management
  • Power management forum

  LM3405A: Can remove D2 in LM3405A

  TI Thinks Resolved

  Part Number: LM3405A Hi, I see in the LM3405A datasheet, need D2 and boost capacitor to generate boost voltage? why LM3405A need D2 and boost capacitor? in other buck LED driver, only need boost capacitor for boost voltage, thanks.
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  Yoav Many

  • 3 months ago
  • Power management
  • Power management forum

  LM3405A: 80mA current at 1ms pulse operation

  TI Thinks Resolved

  Part Number: LM3405A In one of my application I am using the LM3405A current regulator. I need to operate the device at current of 80mA which is lower that the recommended current (200mA). However I operate the deice for short pulse of ~0.5mS (so using...
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  Tristan Auguste

  • over 1 year ago
  • Power management
  • Power management forum

  LM3405A: LED Backlight

  TI Thinks Resolved

  Part Number: LM3405A Hello everyone, I am looking to drive a display back light. According to the vendor of the display,it is constant current driven. The voltage is typical 9.9V. The typical current is 200mA. Input Voltage is 12V. I wanted to know...
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  zacharias brandt

  • over 1 year ago
  • Simulation, hardware & system design tools
  • Simulation, hardware & system design tools forum

  TINA/Spice/LM3405A: LM3405

  TI Thinks Resolved

  Part Number: LM3405A Tool/software: TINA-TI or Spice Models Hi, How is it possible to do a simulation running the LM3405 when there is no model for it?
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  Clinton Jensen

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

  RE: LM3405A: Using the LM3405A as a NiMH CC charger

  Hello Kevin, If you need a constant current source then an LED driver is a good option, that is what they are set up for. The LM3405A should work well for you. As for other optimizations that kind of depends. But it's a relatively simple circuit...
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  Larry104

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

  LM3405A Problems

  Hi, I have some trouble getting the LM3405A to work properly - I'm using the circuit and recommended parts from page 18 on the data sheet. Vin=5V driving a single LED @ 1A I do not get 1A current instead I get R: 0.61A G: 0.32A B: 0.4A W: 0.38A...
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  GU changlin

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

  LM3405A Questions

  Answer Suggested

  Hello My name is Charlie. I have 2 questions about LM3405A. 1. I use two LM3405A to drive 2 strings ×3LEDs （total 6 LEDs）. In order to prevent the interference of swtiching frequency , how can I make the switching of the two ICs Synchronous...
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  Jon Elson

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

  LM3405A: problem with variation on reference circuit

  TI Thinks Resolved

  Part Number: LM3405A I am working on an LED retrofit to be used with an AC-dimming Halogen lamp supply. (10,000 units in the field!) This will be running a single white LED at about 1 A max. Since this will be running off pulsating DC, I wanted to...
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  Ryuji

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

  LM3405A question of the Rzi calculation

  • Resolved

  Hello, I have the question of LM3405A about RZI calculation. Please see the attached file. (Please
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  K.Yaita

  • over 5 years ago
  • Simulation, hardware & system design tools
  • Simulation, hardware & system design tools forum

  LM3405A / spice model

  • Resolved

  Hi Team, Is there spice model for LM3405A ? My customer would like to run SPICE simulation. Best

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