UB10803

Preliminary

CMOS IC

UNISONICTECHNOLOGIESCO.,LTD

4 of 10

www.unisonic.com.tw

QW-R502-A26.a



ABSOLUTE MAXIMUM RATINGS

PARAMETER

SYMBOL

RATINGS

UNIT

Input Supply Voltage

-0.3 ~ +7.0

V

-0.3 ~ +7.0

V

-0.3 ~ +7.0

V

BAT Voltage

-0.3 ~ +7.0

V

EN Voltage

-0.3 ~ +7.0

V

CHG Voltage

-0.3 ~ +7.0

V

PPR Voltage

-0.3 ~ +7.0

V

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. Pulse (μsec) noise exceeding the above input voltage (GND+7.0V) may cause damage to the IC.



THERMAL DATA

PARAMETER

SYMBOL

RATINGS

UNIT

Junction to Ambient

59

°C/W

Junction to Case

4.5

C/W



RECOMMENDED OPERATING CONDITIONS

PARAMETER

SYMBOL

MIN

TYP

MAX

UNIT

Operating Voltage

4.5

6.0

V

Programmable Current

50

500

mA

Operating Temperature

-40

85

C



PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX UNIT

90

150

mV

10

50

Rising Power On Reset Threshold

3.4

3.9

4.3

V

Falling Power On Reset Threshold

3.1

3.6

4.1

DC Supply Current

Charge enabled

500

1000

μA

Charge disabled

300

500

BAT Pin Sink Current

Charge disabled or the input

is floating

1

μA

Output Voltage

Charge Current=20mA

4.15

4.20

4.25

V

Power FET “ON” Resistance

Charge Current=0.5A

0.6

Ω

Constant Charge Current for Adaptor Mode

120

135

150

mA

Precharge Charge Current

17

27

37

mA

End of Charge Current

17

27

37

mA

EOC Rising Threshold

70

100

130

mA

Precharge Threshold Voltage

2.65

2.75

2.85

V

Precharge Voltage Hysteresis

40

100

160

mV

Thermal Regulation Threshold

115

C

EN Pin Logic Input High

1.3

V

EN Pin Logic Input Low

0.5

EN Pin Internal pull Down Resistance

100

200

300

kΩ

CHG Pin Sink Current When Low

5

mA

CHG Pin Leakage Current When High

1

μA

PPR Pin Sink Current When Low

5

mA

PPR Pin Leakage Current When High

1

μA