US209BL-AH-P08-R datasheet(5/10 Pages) UTC

5 / 10 page

UB209B

Preliminary

CMOS IC

UNISONICTECHNOLOGIESCO.,LTD

5 of 10

www.unisonic.com.tw

QW-R502-943.c



ELECTRICAL CHARACTERISTICS (TA=25°C unless otherwise specified)

PARAMETER

SYMBOL TEST CONDITIONS

MIN

TYP

MAX

UNIT

Test

circuit

Overcharge Detection Voltage

VCU

VCU -0.05

VCU

VCU +0.05

Overcharge Release Voltage

VCL

VCL-0.05

VCL

VCL+0.05

Cell-balance Detection Voltage

VBU

VBU-0.05

VBU

VBU+0.05

Cell-balance Release Voltage

VBL

VBL-0.05

VBL

VBL+0.05

Over Discharge Detection Voltage

VDL

VDL-0.10

VDL

VDL+0.10

Over Discharge Release Voltage

VDU

VDU-0.10

VDU

VDU+0.10

Detection Delay Time (Note 1)

tDET

CCDT=0.01µF

100

150

Release Delay Time

tREL

CCDT=0.01µF

CDT Pin Detection Voltage

(Note 1)

VCDET

VDS=3.5V

VDS×0.65 VDS×0.70 VDS×0.75

Operating Voltage Between VDD and

VSS

VDSOP

Output Voltage of

CO, DO, CB Fixed

1.5

8.0

CTLC Pin H Voltage

VCTLCH VDS=3.5V

VDS×0.55

VDS×0.90

CTLD Pin H Voltage

VCTLDH VDS=3.5V

VDS×0.55

VDS×0.90

CTLC Pin L Voltage

VCTLCL VDS=3.5V

VDS×0.10

VDS×0.45

CTLD Pin L Voltage

VCTLDL VDS=3.5V

VDS×0.10

VDS×0.45

Current Consumption During

Operation (Note 2)

IOPE

VDS=3.5V

3.5

8.0

µA

Sink Current CTLC (Note 2)

ICTLCL

VDS=3.5V,

VCTLC=3.5V

200

400

600

Sink Current CTLD (Note 2)

ICTLDL

VDS=3.5V,

VCTLD=3.5V

200

400

600

Source Current CB

ICBH

VCB=4.0V, VDS=4.5V

µA

Sink Current CB

ICBL

VCB=0.5V, VDS=3.5V

µA

Source Current CO

ICOH

VCO=3.0V, VDS=3.5V

µA

Leakage Current CO

ICOL

VCO=18V, VDS=4.5V

0.2

µA

Source Current DO

IDOH

VDO=3.0V, VDS=3.5V

µA

Leakage Current DO

IDOL

VDO=18V, VDS=1.8V

0.2

µA

Notes: 1. In the UTC UB209B Series, users are able to set delay time for the output pins. By using the following

formula, delay time is calculated with the value of CDT pin’s resistance in the IC (RCDT) and the value of

capacitor set externally at the CDT pin (CCDT).

tD [s]=-ln(1-VCDET /VDS)×CCDT [µF]×RCDT [MΩ]

=-ln (1-0.7(Typ.) )×CCDT [µF]×8.31MΩ(Typ.)

=10.0MΩ(Typ.)×CCDT [µF]

In case of the capacitance of CDT pin CCDT=0.01µF, the output pin delay time tD is calculated by using the

above formula and as follows.

tD [s]=10.0MΩ (Typ.)×0.01µF=0.1s (Typ.)

Test the CDT pin detection voltage (VCDET) by test circuits shown in this datasheet after applying the power

supply while pulling-up the CTLC, CTLD pins to the level of VDD pin outside the IC.

2. In case of using CTLC, CTLD pins pulled-up to the level of VDD pin externally, the current flows into the VSS

pin (ISS) is calculated by the following formula.

ISS=IOPE+ICTLCL+ICTLDL

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