UB209B

Preliminary

CMOS IC

UNISONICTECHNOLOGIESCO.,LTD

2 of 10

www.unisonic.com.tw

QW-R502-943.c



SERIAL CODE LIST

Model

Code

Overcharge

Detection

Voltage

Overcharge

Release

Voltage

Cell-balance

Detection

Voltage

Cell-balance

Release

Voltage

Overdischarge

Detection

Voltage

Overdischarge

Release

Voltage

Discharge

Cell-balance

Function

AA

4.100

4.000

4.050

4.000

2.50

2.70

Yes

AB

3.800

3.750

3.650

3.600

2.00

2.50

Yes

AC

3.900

3.500

3.550

3.550

2.50

2.70

Yes

AD

4.250

4.100

4.200

4.100

2.50

3.00

Yes

AE

4.000

3.900

3.950

3.900

2.50

2.70

Yes

AF

4.250

4.100

4.100

4.000

2.75

3.05

Yes

AG

3.900

3.600

3.550

3.500

2.00

2.40

Yes

AH

3.900

3.700

3.600

3.600

2.50

2.80

No

AI

4.150

4.050

3.900

3.900

3.00

3.30

Yes

UB209B

AJ

4.250

4.150

4.100

4.050

2.50

2.80

Yes



MARKING

SOP-8

TSSOP-8



PIN CONFIGURATION

4

3

2

5

7

CTLD

CDT

CO

1

6

DO

8

CB

CTLC



PIN DESCRIPTION

PIN NO.

PIN NAME

DESCRIPTION

1

CTLC

Pin for charge control

2

CTLD

Pin for discharge control

3

Connection pin for input positive power supply, for battery’s positive voltage

4

CDT

Connection pin to capacitor for overcharge detection delay, for over discharge detection

delay

5

Input pin for negative power supply, Connection pin for battery’s negative voltage

6

DO

Output pin for discharge control (Pch open drain output)

7

CO

Output pin for charge control (Pch open drain output)

8

CB

Output pin for cell-balance control (CMOS output)