Rev. E09-06
AnaSem
Products Data Sheet
Analog Semiconductor IC
Single-cell Li-ion / Li-polymer Battery Protection IC
A7B Series
GENERAL DESCRIPTIONS
The A7B series are protection ICs for rechargeable Li-ion / Li-polymer battery by
high withstand voltage CMOS process. These series protect single-cell Li-ion /
Li-polymer battery from over-charge, over-discharge, charge over-current and
discharge over-current.
HALOGEN
RoHS
COMPLIANCE
FEATURES
High accuracy detection voltage ······ Over-charge detection
Over-charge hysteresis
Over-discharge detection
Charge over-current detection
Discharge over-current detection
Selectable detection voltage ·············Over-charge detection
Over-charge hysteresis
Over-discharge detection
Charge over-current detection
Discharge over-current detection
Delay time (internal adjustment) ······ Over-charge detection delay time
Over-discharge detection delay time
Charge over-current detection delay time
Discharge over-current detection delay time
Load short-circuiting detection delay time
Release delay time 1
Release delay time 2
High withstand voltage ····················· Absolute maximum rating
Low current consumption ················· Operation
Over-discharge condition
±25mV (Topr = 25°C)
±30mV (Topr = –5°C ~ +55°C)
±25mV
±2.5%
±30mV
±20mV
4.0V ~ 4.5V (5mV step)
0.0V ~ 0.4V (50mV step)
2.0V ~ 3.0V (5mV step)
–0.25V ~ –0.05V (5mV step)
0.05V ~ 0.40V (5mV step)
Typ. 1.0s
Typ. 31.0ms
Typ. 8.0ms
Typ. 8.0ms
Typ. 370μs
Typ. 2.0ms
Typ. 16.0ms
28V (VM & CO terminals)
Typ. 3.0μA
Max. 0.1μA
Wide operating temperature range ··············································································· –40°C ~ +85°C
Selectable 0V battery charging function or 0V battery charge inhibiting function
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