Answered

• LM3401: Help customers find drivers suitable for multiple LEDs in series.

  

  Hailiang Zhang

  Resolved

  Part Number: LM3401 Other Parts Discussed in Thread: LM3405 , LM3405A , LM3404 , LM3414 I am helping a customer to find a driver suitable for multiple LEDs in series. Usually 5 LEDs. The voltage of each LED is 2.5V-2.8V. Could you please help recommend suitable…

  • Resolved

  • 19 days ago
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• LM3401: LM3401 not longer supported on WebBench?

  

  John Zigrang

  TI Thinks Resolved

  Part Number: LM3401 Other Parts Discussed in Thread: TPS92200 , I have older web-bench designs that I would like to review but it looks like the part is no longer support. Web-Bench is not available on the product page???

  • 8 months ago
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Answered

• LM3401: UL standard certification.

  

  user5942726

  Resolved

  Part Number: LM3401 Ｄear　Sir Thank you for your cooperation. Some of Kyocera's chemical products It has been announced that there was an inappropriate response to UL standard certification. LM3401MM / NOPB Please tell me if there is any influence…

  • Resolved

  • 10 months ago
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Answered

• LM3401: Unstable Conditions above 15V

  

  Alain Fuchs

  Resolved

  Part Number: LM3401 Dear TI Forum I am having trouble with the LM3401 Board. It is working fine when <= 14.5V is applied. When Voltage is around 15V the LED is flickering and above 15.5V the LED is stable but Power is 50%. Red Probe = LED Volta…

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  • 10 months ago
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Answered

• LM3401: LM3401 D = Vout-Vdiode what is Vdiode?

  

  John Zigrang

  Resolved

  Part Number: LM3401 Is the Vdiode in the data sheet talking about the total forward voltage of a string of LED's? It is not defined in the data sheet.

  • Resolved

  • over 2 years ago
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Answered

• LM3401: Efficiency at Vin=5V, 1 series LED 700mA

  

  Franz Schellhase

  Resolved

  Part Number: LM3401 Hi, can you tell me why the efficiency curve for LM3401 for 1 series LED (700mA) doesn't go down to Vin=5V but the 1A measurement does? Can you tell me the efficiency at that point? Thank you, Franz

  • Resolved

  • over 1 year ago
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Answered

• LM3401: Same Design and BOM not working after 3 year gap

  

  John Zigrang

  Resolved

  Part Number: LM3401 We have a design with the LM3401 with 3 LED's in series. A 9V forward Voltage. 24V Input. The first build of this was done in Feb 2017 in china. The second build was done this year in the USA. This is a MCPCB. Both builds used…

  • Resolved

  • over 2 years ago
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• LM3401: The method to reduce the noise of LM3401

  

  takahiko yokota

  TI Thinks Resolved

  Part Number: LM3401 Hi My customer use LM3401 under Vin=10~24V, Vout=3.4V and Iout=1.4A. But when they evaluated LM3401 using EVM, there were the noise as attached document. Coukd you tell me to reduce it? I think I use the bypass capacitor from ILIM…

  • over 4 years ago
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• LM3401: Noise on Hys Pin

  

  Jacob Olstad

  TI Thinks Resolved

  Part Number: LM3401 Hi All, Seeing about ~20mv worth of noise on the hys pin of the lm3401. I'm thinking of filtering this pin with a capacitor to ground to try and eliminate the noise. Is this advisable? Regards, Jake

  • over 3 years ago
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• LM3401: Conditions for overcurrent protection

  

  T Kishi

  TI Thinks Resolved

  Part Number: LM3401 Hi My customer has question. Is there a condition other than CS<ILIM for overcurrent protection detection condition? I think that CS> ILIM whenever SW = OFF, but overcurrent protection is not working. For example, are there any…

  • over 3 years ago
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