LT1910E Ver la hoja de datos (PDF) - Linear Technology
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LT1910E Datasheet PDF : 14 Pages
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LT1910
Electrical Characteristics 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
ISENSE
Drain Sense Input Current
VGATE – V+ Gate Voltage Above Supply
V+ = 48V, VSENSE = 65mV
V+ = 8V
V+ = 12V
0.5
1.5
4
4.5
6
l7
8.5
10
V+ = 24V
E-Grade
I-Grade
l 10
12
14
l 10
12
15
V+ = 48V
E-Grade
I-Grade
l 10
12
14
l 10
12
15
VF(TH)
FAULT Output High Threshold Voltage
FAULT Output Low Threshold Voltage
VIN = 2V, IF = 1mA, Adjust VT
3.1
3.4
3.7
3.0
3.3
3.6
VFOL
tON
tOFF
tOFF(CL)
FAULT Output Low Voltage
Turn-On Time
Turn-Off Time
Current Limit Turn-Off Time
IF = 1mA
l
0.07
0.4
V+ = 24V, VGATE = 32V, CGATE = 1nF
100
220
400
V+ = 24V, VGATE = 2V, CGATE = 1nF
25
100
V+ = 24V, (V+ – VSENSE)→0.1V, CGATE = 1nF
20
50
UNITS
µA
V
V
V
V
V
V
V
V
V
µs
µs
µs
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
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
3.6
3.4 TA = 25°C
3.2
3.0
2.8
ON STATE
2.6
2.4
2.2
2.0
OFF STATE
1.8
1.6
1.4
1.2
0
10
20
30
40
50
SUPPLY VOLTAGE (V)
1910 G01
Supply Current vs Temperature
5.0 V+ = 48V
4.5
4.0
3.5
3.0
ON STATE
2.5
2.0
OFF STATE
1.5
1.0
0.5
0
–50 –25
0 25 50 75 100 125
TEMPERATURE (°C)
1910 G02
Input Voltage vs Temperature
2.0
1.8
1.6
VINH
1.4
VINL
1.2
1.0
0.8
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
1910 G03
For more information www.linear.com/LT1910
1910fb
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