Please can anyone help with identification of a sot 23-5 package marked GCLK in a single channel of a rechargeable lipo balance circuit part on circuit board

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    \$\begingroup\$ Do you have a picture? \$\endgroup\$
    – Voltage Spike
    Commented Aug 1, 2022 at 6:14
  • \$\begingroup\$ It might help if you could supply specs for the balance device and perhaps a picture of the entire board and connections to the cells. Also, why do you need to identify the device? If there is a problem you might do better by asking for troubleshooting advice, which might also provide clues about the IC. \$\endgroup\$
    – PStechPaul
    Commented Aug 1, 2022 at 7:24
  • \$\begingroup\$ More information would be helpful. \$\endgroup\$
    – PStechPaul
    Commented Aug 1, 2022 at 7:26
  • \$\begingroup\$ Another board with simlar IC marking electronics.stackexchange.com/questions/235446/… \$\endgroup\$ Commented Aug 1, 2022 at 8:46
  • \$\begingroup\$ Thank you for the responses, I don't have any specs as trying to repair, top ic on pic is blown which is why I need to identify the device, the Bruce Abbot link seems most helpful so far, the Seiko S8241A seems plausible but can't locate identical code in datasheet list. \$\endgroup\$ Commented Aug 2, 2022 at 17:00

1 Answer 1


Doing a similar search, on a different board. The SOT23-5 LiPo cell balancing IC in my situation is a ABLIC S-8241 €0,76 https://www.digikey.nl/en/products/detail/ablic-inc/S-8241ABPMC-GBPT2G/1628409. The datasheet calls it a "Battery protection IC for 1-cell pack". Wiring matches the IC description. The IC print in my case is "R2RL", though.


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