UNISONIC TECHNOLOGIES CO., LTD

UB209B

Preliminary

CMOS IC

www.unisonic.com.tw

1 of 9

Copyright © 2013 Unisonic Technologies Co., Ltd

QW-R502-943.a

BATTERY PROTECTION IC

WITH CELL-BALANCE

FUNCTION



DESCRIPTION

The

UTC

UB209B

Series

is

a

protection

IC

for

lithium-ion/lithium polymer rechargeable batteries, including a

high precision voltage detection circuit and a delay circuit.

The UTC UB209B Series has a transmission function and two

types of cell-balance function so that users are also able to

configure a protection circuit with series multi-cell.



FEATURES

* Settable delay time by external capacitor for output pin

* High-accuracy voltage detection circuit

* Two types of cell-balance function: charge/discharge

* Control charging, discharging, cell-balance by CTLC, CTLD pins

* Low current consumption: 8.0µA max

* Wide range of operation temperature (-40°C~+85°C)

TSSOP-8



ORDERING INFORMATION

Ordering Number

Package

Packing

Lead Free

Halogen Free

UB209BL-P08-R

UB209BG-P08-R

TSSOP-8

Tape Reel

Note: xx: Output Voltage, refer to Marking Information.

UB209BG-xx-P08-R

(1)Packing Type

(2)Package Type

(3)Output Voltage Code

(1) R: Tape Reel

(2) P08: TSSOP-8

(3) xx: Refer to Marking Information

(4) Halogen Free, L: Lead Free

(4)Halogen Free



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

UB209B

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