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Has anyone seen this ic chip used before LED Driver. BP2867CJ

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    Has anyone seen this ic chip used before LED Driver. BP2867CJ

    I bought this LED lamp that uses this ic chip

    This light is bright as shit each LED light pad has one of these ic chips the board is nicely designed and layout
    Attached Files
    9 PC LCD Monitor
    6 LCD Flat Screen TV
    30 Desk Top Switching Power Supply
    10 Battery Charger Switching Power Supply for Power Tool
    6 18v Lithium Battery Power Boards for Tool Battery Packs
    1 XBox 360 Switching Power Supply and M Board
    25 Servo Drives 220/460 3 Phase
    6 De-soldering Station Switching Power Supply 1 Power Supply
    1 Dell Mother Board
    15 Computer Power Supply
    1 HP Printer Supply & Control Board * lighting finished it *


    These two repairs where found with a ESR meter...> Temp at 50*F then at 90*F the ESR reading more than 10%

    1 Over Head Crane Current Sensing Board ( VFD Failure Five Years Later )
    2 Hem Saw Computer Stack Board

    All of these had CAPs POOF
    All of the mosfet that are taken out by bad caps

    #2
    Re: Has anyone seen this ic chip used before LED Driver. BP2867CJ

    BP Semi: http://www.bpsemi.com/en/product.php
    They probably over drive the LED's as usual.
    Attached Files
    Never stop learning
    Basic LCD TV and Monitor troubleshooting guides.
    http://www.badcaps.net/forum/showthr...956#post305956

    Voltage Regulator (LDO) testing:
    http://www.badcaps.net/forum/showthr...999#post300999

    Inverter testing using old CFL:
    http://www.badcaps.net/forum/showthr...er+testing+cfl

    Tear down pictures : Hit the ">" Show Albums and stories" on the left side
    http://s807.photobucket.com/user/budm/library/

    TV Factory reset codes listing:
    http://www.badcaps.net/forum/showthread.php?t=24809

    Comment


      #3
      Re: Has anyone seen this ic chip used before LED Driver. BP2867CJ

      I found out what voltage that these LED modules 48 volts @120 milliamperes this has decent light output
      At 280 milliamperes the voltage is 52 volts and that where the LED light is bright as shit

      Originally posted by budm View Post
      They probably over drive the LED's as usual.
      They are the data sheet says this <280 milliamperes @ 72 volts

      I have some 48 volt at 300 milliamperes power supply’s which means that I can run two LED light modules on one power supply
      Last edited by sam_sam_sam; 08-09-2020, 11:06 AM.
      9 PC LCD Monitor
      6 LCD Flat Screen TV
      30 Desk Top Switching Power Supply
      10 Battery Charger Switching Power Supply for Power Tool
      6 18v Lithium Battery Power Boards for Tool Battery Packs
      1 XBox 360 Switching Power Supply and M Board
      25 Servo Drives 220/460 3 Phase
      6 De-soldering Station Switching Power Supply 1 Power Supply
      1 Dell Mother Board
      15 Computer Power Supply
      1 HP Printer Supply & Control Board * lighting finished it *


      These two repairs where found with a ESR meter...> Temp at 50*F then at 90*F the ESR reading more than 10%

      1 Over Head Crane Current Sensing Board ( VFD Failure Five Years Later )
      2 Hem Saw Computer Stack Board

      All of these had CAPs POOF
      All of the mosfet that are taken out by bad caps

      Comment


        #4
        Re: Has anyone seen this ic chip used before LED Driver. BP2867CJ

        The question is, what are the LED Vf and If spec? It is got going to be easy to find out.
        120 mA should be OK, but not so sure at 280mA.
        Last edited by budm; 08-09-2020, 02:59 PM.
        Never stop learning
        Basic LCD TV and Monitor troubleshooting guides.
        http://www.badcaps.net/forum/showthr...956#post305956

        Voltage Regulator (LDO) testing:
        http://www.badcaps.net/forum/showthr...999#post300999

        Inverter testing using old CFL:
        http://www.badcaps.net/forum/showthr...er+testing+cfl

        Tear down pictures : Hit the ">" Show Albums and stories" on the left side
        http://s807.photobucket.com/user/budm/library/

        TV Factory reset codes listing:
        http://www.badcaps.net/forum/showthread.php?t=24809

        Comment


          #5
          Re: Has anyone seen this ic chip used before LED Driver. BP2867CJ

          Originally posted by budm View Post
          The question is, what are the LED Vf and If spec? It is got going to be easy to find out.
          120 mA should be OK, but not so sure at 280mA.
          When powered at 120 milliamperes the heat sink only gets moderately warm but what I paid for it I not going to be overly concerned about it

          I have used this approach before and for most it has worked for me before

          Yes I agree with you about the 280 milliamperes is way over powering them because when you start going higher than the 48 volts the amperage goes up very quickly so I think at 120 milliamperes should be just fine

          I going to make a emergency room light with a 48 volt battery pack I just have to get a BMS board for this voltage
          Last edited by sam_sam_sam; 08-09-2020, 03:49 PM.
          9 PC LCD Monitor
          6 LCD Flat Screen TV
          30 Desk Top Switching Power Supply
          10 Battery Charger Switching Power Supply for Power Tool
          6 18v Lithium Battery Power Boards for Tool Battery Packs
          1 XBox 360 Switching Power Supply and M Board
          25 Servo Drives 220/460 3 Phase
          6 De-soldering Station Switching Power Supply 1 Power Supply
          1 Dell Mother Board
          15 Computer Power Supply
          1 HP Printer Supply & Control Board * lighting finished it *


          These two repairs where found with a ESR meter...> Temp at 50*F then at 90*F the ESR reading more than 10%

          1 Over Head Crane Current Sensing Board ( VFD Failure Five Years Later )
          2 Hem Saw Computer Stack Board

          All of these had CAPs POOF
          All of the mosfet that are taken out by bad caps

          Comment


            #6
            Re: Has anyone seen this ic chip used before LED Driver. BP2867CJ

            Since you have been doing lots of works on batteries.
            Are you familiar with this BP-C3400,or what do you use to testing/charging Li-ion?
            I am thinking about getting battery tester since I have lots of batt from laptops to play with.
            Never stop learning
            Basic LCD TV and Monitor troubleshooting guides.
            http://www.badcaps.net/forum/showthr...956#post305956

            Voltage Regulator (LDO) testing:
            http://www.badcaps.net/forum/showthr...999#post300999

            Inverter testing using old CFL:
            http://www.badcaps.net/forum/showthr...er+testing+cfl

            Tear down pictures : Hit the ">" Show Albums and stories" on the left side
            http://s807.photobucket.com/user/budm/library/

            TV Factory reset codes listing:
            http://www.badcaps.net/forum/showthread.php?t=24809

            Comment


              #7
              Re: Has anyone seen this ic chip used before LED Driver. BP2867CJ

              Originally posted by budm View Post
              Since you have been doing lots of works on batteries.
              Are you familiar with this BP-C3400,or what do you use to testing/charging Li-ion?
              I am thinking about getting battery tester since I have lots of batt from laptops to play with.
              Yes I am familiar with this type of charger it okay but it is not going give you all the data you need to put a well balanced battery pack

              Now on the other hand if you were to buy this battery tester this unit would give you all the information you would ever need to make a balanced battery pack for a BMS balancing protection board controller to work correctly


              So let say that you have a real voltage drop start happening at 3.5 volts well most BMS boards there cutoff voltage can be some where 3.5 to maybe 2.8 volts now if it around 3.0 volts this still a problem if one battery run is 10 minutes shorter than the rest and the voltage roll off curve is 3.5 volts now the 10 minutes have turned into maybe more like 30 minutes to maybe an hour

              https://www.ebay.com/itm/EBC-A10H-El...53.m2749.l2649

              Yes this is a little bit pricey but it does what it says it does but there is a little bit of a learning curve to use it correctly

              The way to use it correctly is to set your cutoff voltage on discharge mode to 2.5 volts the first time you do a discharge test because you want to see what each battery discharge curve is because they can be some what different and the run time can also be different so you have to match as close as you possibly can for the best run time results

              Now with this battery tester machine you can cart each battery and compare them to get the best results

              Now you do have to use a computer to be able to cart the battery results
              Last edited by sam_sam_sam; 08-09-2020, 07:12 PM.
              9 PC LCD Monitor
              6 LCD Flat Screen TV
              30 Desk Top Switching Power Supply
              10 Battery Charger Switching Power Supply for Power Tool
              6 18v Lithium Battery Power Boards for Tool Battery Packs
              1 XBox 360 Switching Power Supply and M Board
              25 Servo Drives 220/460 3 Phase
              6 De-soldering Station Switching Power Supply 1 Power Supply
              1 Dell Mother Board
              15 Computer Power Supply
              1 HP Printer Supply & Control Board * lighting finished it *


              These two repairs where found with a ESR meter...> Temp at 50*F then at 90*F the ESR reading more than 10%

              1 Over Head Crane Current Sensing Board ( VFD Failure Five Years Later )
              2 Hem Saw Computer Stack Board

              All of these had CAPs POOF
              All of the mosfet that are taken out by bad caps

              Comment


                #8
                Re: Has anyone seen this ic chip used before LED Driver. BP2867CJ

                Thanks, I will find the user manual and study it.
                Never stop learning
                Basic LCD TV and Monitor troubleshooting guides.
                http://www.badcaps.net/forum/showthr...956#post305956

                Voltage Regulator (LDO) testing:
                http://www.badcaps.net/forum/showthr...999#post300999

                Inverter testing using old CFL:
                http://www.badcaps.net/forum/showthr...er+testing+cfl

                Tear down pictures : Hit the ">" Show Albums and stories" on the left side
                http://s807.photobucket.com/user/budm/library/

                TV Factory reset codes listing:
                http://www.badcaps.net/forum/showthread.php?t=24809

                Comment


                  #9
                  Re: Has anyone seen this ic chip used before LED Driver. BP2867CJ

                  Originally posted by budm View Post
                  Thanks, I will find the user manual and study it.

                  There are some issues with the manual in the respect that there are some thing that it not real clear about and some thing that it make you think that you can do it but not quite correct about the way it written

                  Just keep this in mind when reading this manual

                  Here is the manual

                  Last edited by sam_sam_sam; 08-09-2020, 07:34 PM.
                  9 PC LCD Monitor
                  6 LCD Flat Screen TV
                  30 Desk Top Switching Power Supply
                  10 Battery Charger Switching Power Supply for Power Tool
                  6 18v Lithium Battery Power Boards for Tool Battery Packs
                  1 XBox 360 Switching Power Supply and M Board
                  25 Servo Drives 220/460 3 Phase
                  6 De-soldering Station Switching Power Supply 1 Power Supply
                  1 Dell Mother Board
                  15 Computer Power Supply
                  1 HP Printer Supply & Control Board * lighting finished it *


                  These two repairs where found with a ESR meter...> Temp at 50*F then at 90*F the ESR reading more than 10%

                  1 Over Head Crane Current Sensing Board ( VFD Failure Five Years Later )
                  2 Hem Saw Computer Stack Board

                  All of these had CAPs POOF
                  All of the mosfet that are taken out by bad caps

                  Comment


                    #10
                    Re: Has anyone seen this ic chip used before LED Driver. BP2867CJ

                    Originally posted by budm View Post
                    BP Semi: http://www.bpsemi.com/en/product.php
                    They probably over drive the LED's as usual.
                    Hi, this is maybe off topic. but this is my first forum post. i just saw your signature and found links that are useful. thank you

                    sorry if i replied in this thread.
                    br, ph

                    Comment


                      #11
                      Re: Has anyone seen this ic chip used before LED Driver. BP2867CJ

                      Originally posted by leyecoIII View Post
                      Hi, this is maybe off topic. but this is my first forum post. i just saw your signature and found links that are useful. thank you

                      sorry if i replied in this thread.
                      br, ph
                      Welcome to the forum

                      This is the place where to learn a lot about a lot of things
                      9 PC LCD Monitor
                      6 LCD Flat Screen TV
                      30 Desk Top Switching Power Supply
                      10 Battery Charger Switching Power Supply for Power Tool
                      6 18v Lithium Battery Power Boards for Tool Battery Packs
                      1 XBox 360 Switching Power Supply and M Board
                      25 Servo Drives 220/460 3 Phase
                      6 De-soldering Station Switching Power Supply 1 Power Supply
                      1 Dell Mother Board
                      15 Computer Power Supply
                      1 HP Printer Supply & Control Board * lighting finished it *


                      These two repairs where found with a ESR meter...> Temp at 50*F then at 90*F the ESR reading more than 10%

                      1 Over Head Crane Current Sensing Board ( VFD Failure Five Years Later )
                      2 Hem Saw Computer Stack Board

                      All of these had CAPs POOF
                      All of the mosfet that are taken out by bad caps

                      Comment


                        #12
                        Re: Has anyone seen this ic chip used before LED Driver. BP2867CJ

                        Originally posted by budm View Post
                        Thanks, I will find the user manual and study it.
                        Did you decide to buy one of these battery tester machine if you did which one did you buy
                        9 PC LCD Monitor
                        6 LCD Flat Screen TV
                        30 Desk Top Switching Power Supply
                        10 Battery Charger Switching Power Supply for Power Tool
                        6 18v Lithium Battery Power Boards for Tool Battery Packs
                        1 XBox 360 Switching Power Supply and M Board
                        25 Servo Drives 220/460 3 Phase
                        6 De-soldering Station Switching Power Supply 1 Power Supply
                        1 Dell Mother Board
                        15 Computer Power Supply
                        1 HP Printer Supply & Control Board * lighting finished it *


                        These two repairs where found with a ESR meter...> Temp at 50*F then at 90*F the ESR reading more than 10%

                        1 Over Head Crane Current Sensing Board ( VFD Failure Five Years Later )
                        2 Hem Saw Computer Stack Board

                        All of these had CAPs POOF
                        All of the mosfet that are taken out by bad caps

                        Comment

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