LTC4053-4.2

3

4053fa

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

of a device may be impaired.

Note 2: The Absolute Maximum BAT Current Rating of 1.3A is guaranteed

by design and current density calculations. The Absolute Maximum PROG

Current Rating is guaranteed to be 1/1000 of BAT current rating by design.

Note 3: The LTC4053E is guaranteed to meet performance specifications

from 0

°C to 70°C. Specifications over the –40°C to 85°C operating

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

PROG Pin Voltage

1.5

V

CHRG Pin Weak Pulldown Current

15

30

50

µA

CHRG Pin Output Low Voltage

0.35

0.6

V

ACPR Pin Output Low Voltage

0.35

0.6

V

FAULT Pin Output Low Voltage

0.35

0.6

V

End of Charge Indication Current Level

44

50

56

mA

TIMER Accuracy

%

Recharge Battery Voltage Threshold

Battery Voltage Falling

4.035

V

NTC Pin Hot Threshold Voltage

2.5

V

NTC Pin Hot Hysteresis Voltage

80

mV

NTC Pin Cold Threshold Voltage

4.375

V

NTC Pin Cold Hystersis Voltage

80

mV

NTC Pin Disable Threshold Voltage

100

mV

NTC Pin Disable Hystersis Voltage

10

mV

Junction Temperature in

105

°C

Constant-Temperature Mode

Power MOSFET “ON” Resistance

375

m

Ω

temperature range are assured by design, characterization and correlation

with statistical process controls.

Note 4: Failure to solder the exposed backside of the package to the PC

board will result in a thermal resistance much higher than 40

°C/W.

Note 5: Supply current includes PROG pin current (approximately 50

µA)

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

pin (approximately 50mA).