3

Note 1: Absolute Maximum Ratings are those values beyond which the life

of the device may be impaired.

Note 2: The KB4540E-4.2 and the KB4540XE-4.2 are guaranteed to meet

performance specifications from 0

°C to 70°C. Specifications over the

–40

°C to 85°C operating temperature range are assured by design,

characterization and correlation with statistical process controls.

Note 3: See Thermal Considerations.

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Junction Temperature in Constant

120

°C

Temperature Mode

Power FET “ON” Resistance

600

m

Ω

Soft-Start Time

100

µs

Recharge Comparator Filter Time

0.75

2

4.5

ms

Termination Comparator Filter Time

400

1000

2500

µs

PROG Pin Pull-Up Current

3

µA

The

Note 4: Supply current includes PROG pin current (approximately 100

µA)

but does not include any current delivered to the battery through the BAT

pin (approximately 100mA).

Note 5: This parameter is not applicable to the KB4540X.

with indicated PROG resistor.

PROG Pin Voltage vs Supply

Voltage(Constant Current Mode)

PROG Pin Voltage vs

Temperature

Charge Current vs

PROG Pin Voltage

4.0

1.015

1.010

1.005

1.000

0.995

0.990

0.985

4.5

5.0

5.5

6.0

6.5

7.0

TEMPERATURE (

°C)

–50

–25

0

50

25

75

100

1.0100

1.0075

1.0050

1.0025

1.0000

0.9975

0.9950

0.9925

0.9900

0

600

500

400

300

200

100

0

0.25

0.50

0.75

1.00

1.25

KB4540

Kingbor Technology Co.,Ltd

TEL:(86)0755-26508846 FAX:(86)0755-26509052

ELECTRICAL CHARACTERISTICS

TYPICAL PERFORMANCE CHARACTERISTICS