Voltage monitor semiconductor device, battery pack, and electronic device employing battery pack
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United States of America Patent
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Aug 11, 2015
Grant Date -
Sep 13, 2012
app pub date -
Mar 8, 2012
filing date -
Mar 11, 2011
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Abstract
A voltage monitor semiconductor device to monitor voltages of multiple rechargeable devices to output a detection result signal to indicate overcharge, over-discharge, or excess-current, the voltage monitor semiconductor device including multiple voltage input terminals, corresponding to the multiple rechargeable devices, to monitor the voltages of the corresponding rechargeable devices as monitor voltages; and a test signal generation circuit to generate a first test signal that inverts when at least one of the monitor voltages falls below a predetermined first threshold voltage that is not used normally as an abnormal state.
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