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LT1910

1910fb

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elecTrical characTerisTics

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 LT1910E 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

The l denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C. V+ = 12V to 48V unless otherwise noted.

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

ISENSE

Drain Sense Input Current

V+ = 48V, VSENSE = 65mV

0.5

1.5

µA

VGATE – V+ Gate Voltage Above Supply

V+ = 8V

V+ = 12V

4.5

8.5

V+ = 24V

E-Grade

I-Grade

V+ = 48V

E-Grade

I-Grade

VF(TH)

FAULT Output High Threshold Voltage

FAULT Output Low Threshold Voltage

VIN = 2V, IF = 1mA, Adjust VT

3.1

3.0

3.4

3.3

3.7

3.6

VFOL

FAULT Output Low Voltage

IF = 1mA

0.07

0.4

tON

Turn-On Time

V+ = 24V, VGATE = 32V, CGATE = 1nF

100

220

400

µs

tOFF

Turn-Off Time

V+ = 24V, VGATE = 2V, CGATE = 1nF

100

µs

tOFF(CL)

Current Limit Turn-Off Time

V+ = 24V, (V+ – VSENSE)→0.1V, CGATE = 1nF

µs

with statistical process controls. The LT1910I is guaranteed to meet

performance specifications over the full –40°C to 125°C operating

temperature range.

Note 3: Guaranteed but not tested.

Typical perFormance characTerisTics

Supply Current vs Supply Voltage

Supply Current vs Temperature

Input Voltage vs Temperature

SUPPLY VOLTAGE (V)

2.4

2.8

3.2

3.6

1910 G01

2.0

1.6

2.2

2.6

3.0

3.4

1.8

1.4

1.2

ON STATE

OFF STATE

TA = 25°C

TEMPERATURE (°C)

–50

1.0

2.0

3.0

2.5

–25

1910 G02

4.0

5.0

0.5

1.5

3.5

4.5

125

100

V+ = 48V

ON STATE

OFF STATE

TEMPERATURE (°C)

–50

1.0

1.2

1.4

1.6

2.0

–25

1910 G03

125

100

1.8

0.8

VINH

VINL

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