Battery Protection ICs
BP IC
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.
FEATURES
･High accuracy detection voltage
 Over-charge detection

Over-charge hysteresis
Over-discharge detection
Charge over-current detection
Discharge over-current detection		 ±25mV (Topr = 25ﾟC)
±30mV (Topr = –5ﾟC ~ +55ﾟC)
±25mV
±2.5%
±30mV
±20mV
･Selectable detection voltage
 Over-charge detection
Over-charge hysteresis
Over-discharge detection
Charge over-current detection
Discharge over-current detection
 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)
･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
 Typ. 1.0s
Typ. 31.0ms
Typ. 8.0ms
Typ. 8.0ms
Typ. 370μs
Typ. 2.0ms
Typ. 16.0ms
･High withstand voltage Absolute maximum rating 28V (VM & CO terminals)
･Low current consumption Operation
Over-discharge condition
 Typ. 3.0μA
Max. 0.1μA
･Wide operating temperature range –40ﾟC ~ +85ﾟC
･Selectable 0V battery charging function or 0V battery charge inhibiting function
APPLICATIONS
･Li-ion rechargeable battery pack
･Li-polymer rechargeable battery pack
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