Delay time control circuit in a battery protector to reduce delay time
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United States of America Patent
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Mar 16, 2010
Grant Date -
Dec 25, 2008
app pub date -
Jun 23, 2007
filing date -
Jun 23, 2007
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A battery protection IC using charging control pin, Cout, so as to reduce delay time during CP test or FT test for is disclosed. The battery protection IC has a delay time control circuit including a comparator and a delay signal selector. The comparator has a negative input terminal connected to VCC, a positive input terminal connected with the Cout pin and an output terminal connected to the delay signal selector. To perform foregoing test, a voltage source is added to activate the short delay time mode rather than a normal delay time one.
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