ACEDW01

One Cell Lithium-ion/Polymer Battery Protection IC

VER 1.2

12

Typical Application Circuit

ACEDW01

Symbol Device Name

Purpose

Min

Typ

Max

Remark

R1

Resistor

Limit current, stabilize VCC and

Strengthen ESD protection

100Ω

100Ω

100Ω

(1)

R2

Resistor

Limit current

1KΩ

1KΩ

1KΩ

(2)

C1

Capacitor

Stabilize VCC

0.01uF

0.01uF

0.01uF

(3)

M1

N-MOSFET

Discharge control

(4)

M2

N-MOSFET

Charge control

(5)

Note:

1.

R1 should be as small as possible to avoid lowering the overcharge detection accuracy due to current consumption. When a

charger is connected in reversed, the current flows from the charger to the IC. At this time, if R1 is connected to high

resistance, the voltage between VCC pin and VSS pin may exceed the absolute maximum rating.

2.

If R2 has a resistance higher than 2k

Ω, the charging current may not be cut when a high-voltage charger is connected.

Please select as large a resistance as possible to prevent current when a charger is connected in reversed.

3.

C1 will stabilize the supply voltage of VCC，the value of C1 should

be equal to or more than 0.01μF.

4.

If a NMOSFET with a threshold voltage equal to or higher than the overdischarge detection voltage is applied, discharging

may be stopped before overdischarge is detected.

5.

If the withstanding voltage between the gate and source is lower than the charger voltage, the FET may be destroyed.