LTC4098EPDC-1-PBF(RevB) 查看數據表（PDF） - Linear Technology

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LTC4098EPDC-1-PBF
(Rev.:RevB)

USB Compatible Switching Power Managers/Li-Ion Chargers with Overvoltage Protection

Linear Technology 

LTC4098/LTC4098-1

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

temperature range, otherwise specifications are at TA = 25°C. VBUS = 5V, BAT = 3.8V, RCLPROG = 3.01k, unless otherwise noted.

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

VPROG

VPROG,TRKL

hPROG

VTRKL

ΔVTRKL

VRECHRG

tTERM

tBADBAT

hC/10

VCHRG

ICHRG

RON_CHG

TLIM

NTC

PROG Pin Servo Voltage

PROG Pin Servo Voltage in Trickle

Charge

BAT < VTRKL

Ratio of IBAT to PROG Pin Current

Trickle Charge Threshold Voltage

BAT Rising

Trickle Charge Hystersis Voltage

Recharge Battery Threshold Voltage

Safety Timer Termination Period

Bad Battery Termination Time

End of Charge Indication Current Ratio

CHRG Pin Output Low Voltage

CHRG Pin Input Current

Threshold Voltage Relative to VFLOAT

Timer Starts When BAT = VFLOAT

BAT < VTRKL

(Note 5)

ICHRG = 5mA

BAT = 4.5V, VCHRG = 5V

Battery Charger Power FET

On-Resistance (Between VOUT and BAT)

Junction Temperature in Constant-

Temperature Mode

IBAT = 200mA

1.000

V

0.100

V

1030

mA/mA

2.7

2.85

3

V

130

mV

–80

–100

–120

mV

3.4

4

4.6

Hour

0.43

0.5

0.58

Hour

0.09

0.1

0.11

mA/mA

65

100

mV

0

1

μA

0.18

Ω

110

°C

VCOLD

VHOT

VDIS

INTC

Ideal Diode

Cold Temperature Fault Threshold

Voltage

Hot Temperature Fault Threshold

Voltage

NTC Disable Threshold Voltage

NTC Leakage Current

Rising Threshold

Hysteresis

Falling Threshold

Hysteresis

Falling Threshold

Hysteresis

NTC = 5V

75.0

76.5

78.0 %NTCBIAS

1.5

%NTCBIAS

33.4

34.9

36.4 %NTCBIAS

1.5

%NTCBIAS

0.7

1.7

2.7 %NTCBIAS

50

mV

–50

50

nA

VFWD

Forward Voltage Detection

RDROPOUT

Internal Diode On-Resistance, Dropout

IMAX

Diode Current Limit

Logic (D0, D1, D2)

IVOUT = 10mA

IVOUT = 200mA

15

mV

0.18

Ω

2

A

VIL

Input Low Voltage

VIH

Input High Voltage

IPD

Static Pull-Down Current

VPIN = 1V

0.4

V

1.2

V

2

μA

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 LTC4098E/LTC4098E-1 are guaranteed to meet 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: The LTC4098E/LTC4098E-1 include overtemperature protection

that is intended to protect the device during momentary overload

conditions. Junction temperature will exceed 125°C when overtemperature

protection is active. Continuous operation above the specified maximum

operating junction temperature may impair device reliability.

Note 4: Total input current is the sum of quiescent current, IVBUSQ, and

measured current given by VCLPROG/RCLPROG • (hCLPROG + 1)

Note 5: hC/10 is expressed as a fraction of measured full charge current

with a 5k PROG resistor.

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