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LT1910

sn1910 1910fs

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Supply Current (OFF State)

V+ = 48V, VIN = 0.8V

1.2

1.9

2.5

∆IS(ON)

Delta Supply Current (ON State)

VIN = 2V, Measure Increase in IS

0.8

1.2

VINH

Input High Voltage

VINL

Input Low Voltage

0.8

IIN

Input Current

VIN = 2V

µA

VIN = 5V

110

185

µA

CIN

Input Capacitance (Note 3)

5pF

VT(TH)

Timer Threshold Voltage

VIN = 2V, Adjust VT

2.6

2.9

3.2

VT(CL)

Timer Clamp Voltage

VIN = 0.8V

3.2

3.5

3.8

Timer Charge Current

VIN = VT = 2V

µA

VSENSE

Drain Sense Threshold Voltage

Temperature Coefficient (Note 3)

0.33

°C

ISENSE

Drain Sense Input Current

V+ = 48V, VSENSE = 65mV

0.5

1.5

µA

VGATE – V

Gate Voltage Above Supply

V+ = 8V

4.5

V+ = 12V

8.5

V+ = 24V

V+ = 48V

VF(TH)

FAULT Output High Threshold Voltage

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

3.1

3.4

3.7

FAULT Output Low Threshold Voltage

3.0

3.3

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

(Note 1)

Supply Voltage (Pin 8) ............................... –15V to 60V

Input Voltage (Pin 4) .................... (GND – 0.3V) to 15V

GATE Voltage (Pin 5) .............................................. 75V

SENSE Voltage (Pin 6) ....................................... V+

±5V

FAULT Voltage (Pin 3) ............................................ 36V

Current (Pins 1, 2, 4, 5, 6, 8) ............................... 40mA

Operating Ambient Temperature Range

(Note 2) ...................................................–40

°C to 85°C

Junction Temperature Range ................ –40

°C to 125°C

Storage Temperature Range ................. – 65

°C to 150°C

Lead Temperature (Soldering, 10 sec).................. 300

°C

ABSOLUTE MAXIMUM RATINGS

PACKAGE/ORDER INFORMATION

ORDER PART

NUMBER

LT1910ES8

S8 PART MARKING

1910E

TJMAX = 125°C, θJA = 150°C/W

The q denotes specifications that apply over the full operating temperature

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

Consult LTC Marketing for parts specified with wider operating temperature ranges.

ELECTRICAL CHARACTERISTICS

TOP VIEW

V+

SENSE

GATE

GND

TIMER

FAULT

S8 PACKAGE

8-LEAD PLASTIC SO

Note 1: Absolute Maximum Ratings are those values beyond which the life

of a device may be impaired.

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

with statistical process controls.

Note 3: Guaranteed but not tested.

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