LTC4097EDDB datasheet(3/20 Pages) LINER

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LTC4097

4097f

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: The LTC4097 is guaranteed to meet the performance speciﬁcations

from 0°C to 85°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: Failure to correctly solder the Exposed Pad of the package to the

PC board will result in a thermal resistance much higher than 60°C/W. See

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

VTRIKL

Trickle Charge Threshold Voltage

VBAT Rising

Hysteresis

●

2.8

2.9

135

VUVDC

DCIN Undervoltage Lockout

Voltage

From Low to High

Hysteresis

4.22

200

4.4

VUVUSB

USBIN Undervoltage Lockout

Voltage

From Low to High

Hysteresis

3.8

200

4.2

VASD-DC

VDCIN – VBAT Lockout Threshold

Voltage

VDCIN from High to Low, VBAT = 4.3V

VDCIN from Low to High, VBAT = 4.3V

530

100

VASD-USB

VUSBIN – VBAT Lockout Threshold

Voltage

VUSBIN from High to Low, VBAT = 4.3V

VUSBIN from Low to High, VBAT = 4.3V

530

150

VSUSP, VHPWR

VIL, Logic Low Voltage

0.5

VIH, Logic High Voltage

1.2

RSUSP

SUSP Pulldown Resistance

●

3.4

MΩ

RHPWR

HPWR Pulldown Resistance

●

3.4

MΩ

V⎯C⎯H⎯R⎯G

⎯C⎯H⎯R⎯G Output Low Voltage

I⎯C⎯H⎯R⎯G = 5mA

●

150

ΔVRECHRG

Recharge Battery Threshold

Voltage

VFLOAT – VRECHRG

100

130

tRECHRG

Recharge Comparator Filter Time VBAT from High to Low

1.6

tITERM

Termination Comparator Filter Time IBAT Drops Below Termination Threshold

RON-DC

Power FET “ON” Resistance

(Between DCIN and BAT)

420

mΩ

RON-USB

Power FET “ON” Resistance

(Between USBIN and BAT)

470

mΩ

TLIM

Junction Temperature in

Constant-Temperature Mode

115

°C

IVNTC

VNTC Pin Current

VVNTC = 4.55V DCIN Powered

VVNTC = 4.8V USBIN Powered

VVNTC

VNTC Bias Voltage

IVNTC = 250µA

4.25

5.5

INTC

NTC Input Leakage Current

VNTC = 1V

±1

µA

VNTC-COLD

Cold Temperature Fault

Threshold Voltage

Rising Threshold

Hysteresis

0.765 • VVNTC

0.016 • VVNTC

VNTC-HOT

Hot Temperature Fault Threshold

Voltage

Falling Threshold

Hysteresis

0.349 • VVNTC

0.016 • VVNTC

VNTC-DIS

NTC Disable Threshold Voltage

NTC Input Voltage to GND (Falling)

Hysteresis

0.017 • VVNTC

0.01 • VVNTC

ELECTRICAL CHARACTERISTICS The ● denotes the speciﬁcations which apply over the full operating

temperature range, otherwise speciﬁcations are at TA = 25°C. VDCIN = 5V, VUSBIN = 5V, HPWR = 5V, NTC = 0V, RIDC = 1kΩ, RIUSB = 2kΩ,

RITERM = 2kΩ unless otherwise noted.

Thermal Considerations.

Note 4: Supply current includes IDC and ITERM pin current (approximately

100µA each) but does not include any current delivered to the battery

through the BAT pin.

Note 5: Supply current includes IUSB and ITERM pin current

(approximately 100µA each) but does not include any current delivered to

the battery through the BAT pin.

Note 6: Guaranteed by long term current density limitations.

Note 7: VCC is greater of DCIN or USBIN

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