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Zetex Products For Mobile Phon
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2009-09-29
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Zetex Products For Mobile Phones
A common mobile phone battery gas gauge uses VBATT and TBATT
VBATT changes due to many factors
QBATT, TBATT, IDSCH, IDSCH profile IDSCH > I(C)
Sensing IDSCH improves accuracy
ZXCT1012 Micro-power Current Monitor Provides Simple Solution
IDSCH is measured & can be used:
Calculate charge remaining
To protect battery
To change capacity profile
QBATT can be measured
From assumption of charging level
System performance and user interface greatly improved
ZXCT1012 key features
3.5µA IQ
Thin small footprint packages
TSOT23-5 or TDFN3x3-5
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