« previous next »
Pages: [1]   Go Down

Author Topic: Mean Well MDR-100 PWM IC controller  (Read 555 times)

0 Members and 1 Guest are viewing this topic.

Offline Vovk_ZTopic starter

  • Super Contributor
  • ***
  • Posts: 1468
  • Country: ua
Mean Well MDR-100 PWM IC controller
« on: November 07, 2023, 02:25:25 pm »
Hello. Repairing broken MDR-100-24 I found strange PWM IC controllers with a code 6C17703 and another revision with a code 6C19910. Google can't help. What is that?
By pinout it is similar to NCP1200, NCP1239 series used in other their power supplies.
I have several MDR-100 power supplies with a two revisions which look the same. One revision is MDR-100NA-R4 and another revision is MDR-100NA-R6. The only difference I see is different PWM IC controller codes.
Photo taken from MDR-100NA-R4.
« Last Edit: November 07, 2023, 02:41:59 pm by Vovk_Z »
Logged
 

Online 2N3055

  • Super Contributor
  • ***
  • Posts: 7350
  • Country: hr
Re: Mean Well MDR-100 PWM IC
« Reply #1 on: November 07, 2023, 02:42:10 pm »
FA5640 ??
Logged
"Just hard work is not enough - it must be applied sensibly."
Dr. Richard W. Hamming
 
The following users thanked this post: Vovk_Z

Offline Vovk_ZTopic starter

  • Super Contributor
  • ***
  • Posts: 1468
  • Country: ua
Re: Mean Well MDR-100 PWM IC controller
« Reply #2 on: November 07, 2023, 02:48:35 pm »
Yes, it can be.  :-+
I will look at datasheet now to investigate if it is Fuji FA5640N or not.
Thank you very much!   :-+
Logged
 
The following users thanked this post: 2N3055

Offline fzabkar

  • Super Contributor
  • ***
  • Posts: 2735
  • Country: au
Re: Mean Well MDR-100 PWM IC controller
« Reply #3 on: November 07, 2023, 05:03:13 pm »
« Last Edit: November 07, 2023, 05:04:50 pm by fzabkar »
Logged
 
The following users thanked this post: Vovk_Z

Offline Vovk_ZTopic starter

  • Super Contributor
  • ***
  • Posts: 1468
  • Country: ua
Re: Mean Well MDR-100 PWM IC controller
« Reply #4 on: November 07, 2023, 07:48:17 pm »
Thank you,, @fzabkar, it seems I can find this IC on our local market. I ordered one already for test.
Logged
 

Offline Vovk_ZTopic starter

  • Super Contributor
  • ***
  • Posts: 1468
  • Country: ua
Re: Mean Well MDR-100 PWM IC controller
« Reply #5 on: November 08, 2023, 07:51:51 pm »
Yes, that was FA5640N.
It had several other small components broken on a secondary side too (mostly semiconductors:  PC123 optocouplers, AP4310A opamp, etc).
« Last Edit: November 09, 2023, 08:15:53 am by Vovk_Z »
Logged
 
The following users thanked this post: 2N3055
Pages: [1]   Go Up
« previous next »

Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo
Smf

 


EEVblog Main Site EEVblog on Youtube EEVblog on Twitter EEVblog on Facebook EEVblog on Odysee