Datasheet

LT1910
3
1910fa
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 specifi cations
from 0°C to 70°C. Specifi cations over the –40°C to 85°C operating
temperature range are assured by design, characterization and correlation
The l denotes the specifi cations which apply over the full operating
temperature range, otherwise specifi cations are at T
A
= 25°C. V
+
= 12V to 48V unless otherwise noted.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
I
SENSE
Drain Sense Input Current V
+
= 48V, V
SENSE
= 65mV 0.5 1.5 μA
V
GATE
– V
+
Gate Voltage Above Supply V
+
= 8V
V
+
= 12V
l
4
7
4.5
8.5
6
10
V
V
V
+
= 24V
E-Grade
I-Grade
l
l
10
10
12
12
14
15
V
V
V
+
= 48V
E-Grade
I-Grade
l
l
10
10
12
12
14
15
V
V
V
F(TH)
FAULT Output High Threshold Voltage
FAULT Output Low Threshold Voltage
V
IN
= 2V, I
F
= 1mA, Adjust V
T
3.1
3.0
3.4
3.3
3.7
3.6
V
V
V
FOL
FAULT Output Low Voltage I
F
= 1mA
l
0.07 0.4 V
t
ON
Turn-On Time V
+
= 24V, V
GATE
= 32V, C
GATE
= 1nF 100 220 400 μs
t
OFF
Turn-Off Time V
+
= 24V, V
GATE
= 2V, C
GATE
= 1nF 25 100 μs
t
OFF(CL)
Current Limit Turn-Off Time
V
+
= 24V, (V
+
– V
SENSE
)0.1V, C
GATE
= 1nF
20 50 μs
with statistical process controls. The LT1910I is guaranteed to meet
performance specifi cations 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)
0
SUPPLY CURRENT (mA)
2.4
2.8
3.2
3.6
40
1910 G01
2.0
1.6
2.2
2.6
3.0
3.4
1.8
1.4
1.2
10
20
30
50
ON STATE
OFF STATE
T
A
= 25°C
TEMPERATURE (°C)
–50
0
SUPPLY CURRENT (mA)
1.0
2.0
3.0
2.5
–25
0
25 50
1910 G02
75
4.0
5.0
0.5
1.5
3.5
4.5
125100
V
+
= 48V
ON STATE
OFF STATE
TEMPERATURE (°C)
–50
INPUT VOLTAGE (V)
1.0
1.2
1.4
1.6
2.0
–25
02550
1910 G03
75 125100
1.8
0.8
V
INH
V
INL