AnaSem Inc.

1

Rev. E09-06

Products Data Sheet

AnaSem

Analog Semiconductor IC

.......... Future of the analog world

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.

FEATURES

High accuracy detection voltage ······

Selectable detection voltage ·············

Delay time (internal adjustment) ······

High withstand voltage ····················· Absolute maximum rating

28V (VM & CO terminals)

Low current consumption ·················

Wide operating temperature range ··············································································· –40°C ~ +85°C

Selectable 0V battery charging function or 0V battery charge inhibiting function

HALOGEN

RoHS

COMPLIANCE

Typ. 1.0s

Typ. 31.0ms

Typ. 8.0ms

Typ. 8.0ms

Typ. 370μs

Typ. 2.0ms

Typ. 16.0ms

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. 3.0μA

Max. 0.1μA

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

Operation

Over-discharge condition

Over-charge detection

Over-charge hysteresis

Over-discharge detection

Charge over-current detection

Discharge over-current detection

±25mV (Topr = 25°C)

±30mV (Topr = –5°C ~ +55°C)

±25mV

±2.5%

±30mV

±20mV

Over-charge detection

Over-charge hysteresis

Over-discharge detection

Charge over-current detection

Discharge over-current detection