ACEDW01

One Cell Lithium-ion/Polymer Battery Protection IC

VER 1.2

3

Ordering Information

ACEDW01XX +

H

Model list

Over charge

detection

voltage

Over

charge

release

voltage

Over discharge

detection

voltage

Over

discharge

release

voltage

OV battery

charge

function

Other function

VOCP

VOCR

VODP

VODR

V0V

-

4.30V

4.10V

2.40V

3.00V

Available

Auto overdischarge

recovery function

Function

Normal Status

This IC monitors the voltage of the battery connected between the VCC pin and GND pin and the voltage

difference between the CS pin and GND pin to control charging and discharging.

When the battery voltage is in the range from overdischarge detection voltage (VODP) to overcharge

detection voltage (VOCP), and the CS pin voltage is in the range from the charger detection voltage (VCH)

to discharge overcurrent detection voltage (VOI1), the IC turns both the charging and discharging control

MOSFET on. This condition is called the normal status.

Under this condition, charging and discharging can both be carried out freely.

Caution: Discharging may not be enacted when the battery is first time connected. To regain normal

status, CS and GND pin must be shorted or the charger must be connected.

Overcharge Protection

When the voltage of the battery cell exceeds the overcharge protection voltage (VOCP) beyond the

overcharge delay time (TOC) period, charging is inhibited by turning off of the charge control MOSFET.

The overcharge condition is released in two cases:

1. The voltage of the battery cell becomes lower than the overcharge release voltage (VOCR) through

self-discharge.

2. The voltage of the battery cell falls below the overcharge protection voltage (VOCP) and a load is

connected.

When the battery voltage is above VOCP, the overcharge condition will not release even a load is

connected to the pack.

Halogen - free

GM : SOT-23-6

Pb - free