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1/60 • f/5.6 • 10.2 mm • ISO 80 •

PENTAX Corporation PENTAX Optio S5z

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electronics •
PCB •
teardown •
lipo •


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Old lipo

Old lipo
The top chip is a dual N-channel mosfet (TPCS8205), the bottom is the management chip (SC451). Which is supposed to do over-current and over-charge protection.

From what I gather from the datasheet, over-current condition is detected by a voltage drop of the cell.

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