UB244A

Preliminary

CMOS IC

UNISONICTECHNOLOGIESCO.,LTD

4 of 11

www.unisonic.com.tw

QW-R502-857.b



PARAMETER

SYMBOL

RATINGS

UNIT

V

V

CO Output Pin Voltage

V

Power Dissipation (Note 2)

500

mW

Operation Ambient Temperature

−40 ~ +85

°C

Storage Temperature

−40 ~ +125

°C

Notes: 1. Absolute maximum ratings are those values beyond which the device could be permanently damaged.

Absolute maximum ratings are stress ratings only and functional device operation is not implied.

2. When mounted on printed circuit board.



PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNIT

DETECTION VOLTAGE

Overcharge Detection Voltage n (n = 1,

2, 3, 4)

4.05V ~ 4.50V Adjustment

0.050

0.050

V

Overcharge Hysteresis

Voltage n (n = 1, 2, 3, 4)

(Note 1)

0.28

0.38

0.48

V

DELAY TIME

Overcharge Detection Delay

Time

C=0.1μF

1.0

1.5

2.0

S

OPERATING VOLTAGE

Operating Voltage Between

3.6

24

V

CURRENT CONSUMPTION

Current Consumption During

Operation

V1=V2=V3=V4=3.5V

1.5

6.0

μA

Current Consumption At Power Down

V1=V2=V3=V4=2.3V

1.2

6.0

μA

VC1 Pin Current

V1=V2=V3=V4=3.5V

-0.5

0

0.5

μA

VC2 Pin Current

V1=V2=V3=V4=3.5V

-0.5

0

0.5

μA

VC3 Pin Current

V1=V2=V3=V4=3.5V

-0.5

0

0.5

μA

OUTPUT VOLTAGE

CO “H” VOLTAGE

-0.05

V

CO “L” VOLTAGE

VSS

+0.05

V

Notes: 1. 0.25±0.07V, 0.13±0.04V, 0.045±0.02V except for 0.38V hysteresis models.

2. After detecting the overcharge, the delay circuit operates normally in the range of operating voltage.