Help identifying this chip - battery controller chip ?

Collapse
X
 
  • Time
  • Show
Clear All
new posts

  • Gabriel
    replied
    Re: Help identifying this chip - battery controller chip ?

    Yes it is a Dell raid battery - I have a Lsi 9260-8i and their battery cost 227$ here in Norway and as these Dell Perc 6 batteries has the same pinout and battery plug as Lsi and as the Perc 6 raid card is made by Lsi I thought I could swap them but 9260 card does not see the battery.

    I was hoping that there was a small eprom that could be changed to match Lsi data.

    Pinout is data,clock,-,T,+ see picture.
    Attached Files
    Last edited by Gabriel; 11-21-2015, 08:38 AM.

    Leave a comment:


  • kc8adu
    replied
    Re: Help identifying this chip - battery controller chip ?

    its a battery fuel gauge chip.
    probably house marked.
    is that a dell raid backup battery?
    i tore up a bunch for the cells.
    its probably ti/benchmarq though.
    Last edited by kc8adu; 11-21-2015, 08:12 AM.

    Leave a comment:


  • Gabriel
    replied
    Re: Help identifying this chip - battery controller chip ?

    Thanks for all your effort Spork Schivago - I didn't manage to find anything either.

    Leave a comment:


  • Spork Schivago
    replied
    Re: Help identifying this chip - battery controller chip ?

    Got a response from TI. I'll just copy and paste what they said Gabriel...

    You can look up part marking on a tool on our website. I have looked up the part and this is what I got: http://www.ti.com/packaging/docs/partlookup.tsp#divline

    Part number | Marking | Package | pins Status | Description

    LP38842T-1.2/NOPB LP38842T-1.2 KC | 5 ACTIVE 1.5A Ultra Low Dropout Linear Regulators
    LP38842T-1.5/NOPB LP38842T-1.5 KC | 5 ACTIVE 1.5A Ultra Low Dropout Linear Regulators
    TL4242TDRJRQ1 4242T DRJ | 8 ACTIVE Automotive Adjustable LED Driver


    I know the formatting is a little hard to read. Couldn't figure out how to add a grid. It's | separated.

    As you can see, none of them have 30 pins like your chip. So now I'm questioning whether it's actually TI or not. Sorry. Wish I could be more helpful.
    Last edited by Spork Schivago; 11-17-2015, 05:12 PM.

    Leave a comment:


  • Spork Schivago
    replied
    Re: Help identifying this chip - battery controller chip ?

    Originally posted by stj
    i doubt that - it's probably a microcontroller with a serial port given it's acting as a charge controller.
    Yeah, before you replied, I thought the same and modified my statement. We must of been cross posting or whatever it's called. I still think it's made by TI though and hopefully they'll respond soon.

    Leave a comment:


  • stj
    replied
    Re: Help identifying this chip - battery controller chip ?

    i doubt that - it's probably a microcontroller with a serial port given it's acting as a charge controller.

    Leave a comment:


  • Spork Schivago
    replied
    Re: Help identifying this chip - battery controller chip ?

    I believe it's made by Texas Instrument and I couldn't find any datasheets on the chip. When I searched for it though, I found an Enhanced Product Hex Buffer/Driver With Open-Drain Outputs ( http://www.alibaba.com/product-detai...680448902.html ). SN74LVC07A-EP lists your sn0710031 as a related part number0. Here's a datasheet for the SN74LVC07A-EP https://cdn.badcaps-static.com/pdfs/...d50210e6ea.pdf

    I've contacted TI to see if they can help identify it. Hopefully they'll respond soon with a link to a datasheet or something.
    Hope this helps.
    Last edited by Spork Schivago; 11-17-2015, 01:50 PM.

    Leave a comment:


  • Help identifying this chip - battery controller chip ?

    What chip is the large sn0710031 ?
    Attached Files

Related Topics

Collapse

  • Bowline
    Dell E6400 PT434 type Battery Charging Stuck at 1%. Battery Pinouts?
    by Bowline
    My question pertains to understanding the control circuity inside a Dell PT434 type battery used in Dell E6400, E6410 and other Dell notebooks?

    Does anyone have a circuit diagram for the inside of a Dell PT434 battery and/or a description of how the control lines work to control this battery?

    My reason for asking is I have a battery which I cannot get to charge beyond 1% in a Dell E6410 or E6400.
    The LED bar graph charge indicator on the battery shows one LED lighted when the info button is pressed.
    I have tried multiple different Dell power adapters. My Dell...
    06-11-2025, 10:13 AM
  • DynaxSC
    ASRock B650M PRO RS - BIOS CHIP 25Q256JW BLOCKED BY STATUS REGISTERS
    by DynaxSC
    Hi

    I have a very strange issue with the BIOS SPI chip of an ASRock B650M PRO RS motherboard.
    The SPI chip is an Winbond 25Q256JWEQ model (1V8).
    The motherbaord doas not POST - it lits only CPU and DRAM EZ Debug Leds, and stays that way forever.
    The Flashback function of the motherbaord is also not working, despite all instructions followed correctly - I'm 100% sure of this.

    I have then desoldered the chip, backupped the contents, and tried to earease the chip in order to program stock image, but the chip is locked by status registers SREG2 (TB) and SREG6...
    08-04-2025, 12:20 PM
  • mkdj
    ASUS X571 no power : battery issue?
    by mkdj
    Hello everyone,

    Mark and model: ASUS X571
    Symptoms: not turning on. There is only the LED battery indicator working. The owner of the laptop told me this problem arrived one week after having changed the battery. He then managed to power on the laptop only once, and then it never powered on again.

    Tests already made:
    - Battery is charging when laptop is plugged in. The LED battery indicator turns white after a couple of hours of charge, indicating that battery is fully charged. However, laptop won't turn on anyway, with or without AC plug.
    - I have removed...
    07-14-2025, 09:16 AM
  • techfreak9356
    Vostro 3400 (LA-K033P) won't charge battery, everything else ok
    by techfreak9356
    I bought a Vostro 3400 motherboard (LA-K033P) to upgrade over my damaged Inspiron 5593 (LA-J091P) board. Everything else is ok except for the battery. This battery I am using now is already a replacement one since I disposed of the bloated original one. Back in the Inspiron 5593 motherboard, the battery charges fine and is identified just fine. However, with the upgraded motherboard, suddenly the replacement battery is labeled as "Not a dell battery". When I borrow a similar battery from my colleague (which did not have replacements yet), it is identified and charges just fine.
    ...
    09-14-2023, 11:10 PM
  • Loki_Fido
    Requesting help identifying chip in Macbook Pro A2485
    by Loki_Fido
    Hi ya folks,

    I have this MacBook Pro A2485 (M1 Pro 2021) which came in for repair.

    It had a shorted SSD power supply chip. Therefore it was stuck at 5V.
    I replaced it and the SSD are fine. No more shorts.

    But The mac still pulls 5V and 200mA. If i leave it alone for 5 mins, the mac manages to receive 20V and 40mA. Of course, which doesnt mean the mac starts after power meter reading 20V.

    But while the mac is stuck at 5V, i checked the board with thermal and found this chip was trying to start. Chip picture is attached.
    Chip marking...
    08-07-2025, 10:17 PM
  • Loading...
  • No more items.
Working...