LTC4120 datasheet(4/24 Pages) AD

4 / 24 page

LTC4126-ADJ

Rev. 0

For more information www.analog.com

The l denotes the specifications which apply over the specified operating

junction temperature range, otherwise specifications are at TA = 25°C (Notes 2, 3). VACIN = VCC = 5V, VBAT = 3.8V, unless otherwise noted.

Note 1: Stresses beyond those listed under Absolute Maximum Ratings

may cause permanent damage to the device. Exposure to any Absolute

Maximum Rating condition for extended periods may affect device

reliability and lifetime.

Note 2: All currents into pins are positive; all voltages are referenced to

GND unless otherwise noted.

Note 3: The LTC4126EV-ADJ is tested under conditions such that TJ ≈ TA.

The LTC4126EV-ADJ is guaranteed to meet performance specifications

from 0°C to 85°C junction temperature. Specifications over the –20°C

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

characterization and correlation with statistical process controls. The

junction temperature (TJ in °C) is calculated from the ambient temperature

(TA, in °C) and power dissipation (PD, in watts) according to the formula:

TJ = TA + (PD • θJA),

where the package thermal impedance

θJA = 92°C/W).

Note that the maximum ambient temperature consistent with these

specifications is determined by specific operating conditions in

conjunction with board layout, the rated package thermal resistance, and

other environmental factors.

Note 4: See DC/DC Converter in Operation section.

ELECTRICAL CHARACTERISTICS

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

ILIM

OUT Current Limit

VOUT = 0V

Pushbutton Pin (PBEN)

VIL

Logic Low Input Voltage

0.4

VIH

Logic High Input Voltage

1.1

RPU

Pull-up Resistance to BAT

VPBEN < VIL

MΩ

IIH

Logic High Input Leakage

VPBEN = VBAT

0.1

μA

tDBL

Debounce Time Low

348

425

503

tDBH

Debounce Time High

EN Pin

VIL

Logic Low Input Voltage

0.4

VIH

Logic High Input Voltage

1.1

IIL

Logic Low Input Leakage

μA

IIH

Logic High Input Leakage

μA

Logic Output Pins (STAT1, STAT2, ACPR)

VOL

Logic Low Output Voltage

100μA into Pin

0.2

VOH

Logic High Output Voltage

25μA out of Pin

VOUT – 0.2

Open-Drain Output (CHRG)

Pin Leakage Current

VCHRG = 5V

0.5

μA

Pin Pull-Down Current

VCHRG = 400mV

200

300

450

μA

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