LTC4007EGN(RevA) 查看數據表（PDF） - Linear Technology

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LTC4007EGN
(Rev.:RevA)

4A, High Efficiency, Standalone Li-Ion Battery Charger

Linear Technology 

LTC4007

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

temperature range (Note 4), otherwise specifications are at TA = 25°C. VDCIN = 20V, VBAT = 12V unless otherwise noted.

SYMBOL PARAMETER

CONDITIONS

MIN TYP MAX

VOL

Low Logic Level of ACP, CHG, FLAG, LOBAT,

IOL = 100µA

ICL, FAULT

VOH

High Logic Level of CHG, LOBAT, ICL

IOH = –1µA

IOFF

Off State Leakage Current of ACP, FLAG, FAULT VOH = 3V

IPO

Pull-Up Current on CHG, LOBAT, ICL

V = 0V

Timer Defeat Threshold at CHG

●

0.5

● 2.7

–1

1

– 10

1

Programming Inputs (CHEM and 3C4C)

VIH

VIL

IPI

Oscillator

High Logic Level

Low Logic Level

Pull-Up Current

V = 0V

●

●1

3.3

– 14

fOSC

Regulator Switching Frequency

fMIN

Regulator Switching Frequency in Drop Out

DCMAX Regulator Maximum Duty Cycle

Gate Drivers (TGATE, BGATE)

Duty Cycle ≥ 98%

VCSP = VBAT

255

300

345

20

25

98

99

TGTR

TGTF

BGTR

BGTF

VTGATE High (VCLN – VTGATE)

VBGATE High

VTGATE Low (VCLN – VTGATE)

VBGATE Low

TGATE Transition Time

TGATE Rise Time

TGATE Fall Time

BGATE Transition Time

BGATE Rise Time

BGATE Fall Time

VTGATE at Shutdown (VCLN – VTGATE)

VBGATE at Shutdown

ITGATE = –1mA

CLOAD = 3000pF

CLOAD = 3000pF

IBGATE = 1mA

CLOAD = 3000pF, 10% to 90%

CLOAD = 3000pF, 10% to 90%

CLOAD = 3000pF, 10% to 90%

CLOAD = 3000pF, 10% to 90%

ITGATE = –1µA, DCIN = 0V, CLN = 12V

IBGATE = 1µA, DCIN = 0V, CLN = 12V

50

4.5

5.6

10

4.5

5.6

10

50

50

110

50

100

40

90

40

80

100

100

UNITS

V

V

µA

µA

V

V

V

µA

kHz

kHz

%

mV

V

V

mV

ns

ns

ns

ns

mV

mV

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: See Test Circuit.

Note 3: Does not include tolerance of current sense resistor or current

programming resistor.

Note 4: The LTC4007E is 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.

4007fa

4

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