Datasheet

LT4250L/LT4250H
4
4250lhfa
TYPICAL PERFORMANCE CHARACTERISTICS
Gate Voltage vs Temperature
Current Limit Trip Voltage
vs Temperature
Gate Pull-Up Current
vs Temperature
Gate Pull-Down Current
vs Temperature
PWRGD Output Low Voltage
vs Temperature (LT4250L)
PWRGD Output Impedance
vs Temperature (LT4250H)
Supply Current vs Supply Voltage Supply Current vs Temperature Gate Voltage vs Supply Voltage
SUPPLY VOLTAGE (V)
0
SUPPLY CURRENT (mA)
1.3
1.4
1.5
60
100
4250 G01
1.2
1.1
0
20 40 80
1.6
1.7
1.8
T
A
= 25°C
TEMPERATURE (°C)
–50 –25
1.0
SUPPLY CURRENT (mA)
1.1
1.2
1.3
1.4
1.6
0255075
4250 G02
100
1.5
V
DD
= 48V
SUPPLY VOLTAGE (V)
0
6
GATE VOLTAGE (V)
7
9
10
11
40
80
100
15
4250 G03
8
20 60
12
13
14
T
A
= 25°C
TEMPERATURE (°C)
12.0
GATE VOLTAGE (V)
13.0
14.0
15.0
12.5
13.5
14.5
–25 0 75
4250 G04
100–50 25 50
V
DD
= 48V
TEMPERATURE (°C)
–50
48
TRIP VOLTAGE (mV)
49
51
52
53
55
250
50
4250 G05
50
54
100
–25
75
TEMPERATURE (°C)
–50
GATE PULL-UP CURRENT (μA)
48
47
46
45
44
43
42
41
40
75
4250 G06
–25 10050250
V
GATE
= 0V
TEMPERATURE (°C)
–50
GATE PULL-DOWN CURRENT (mA)
49
52
55
75
4250 G07
46
43
40
–25 0
25
50
100
V
GATE
= 2V
TEMPERATURE (°C)
–50
PWRGD OUTPUT LOW VOLTAGE (V)
0.3
0.4
0.5
75
4250 G08
0.2
0.1
0
–25 25
0
50
100
I
OUT
= 1mA
TEMPERATURE (°C)
–50
2
OUTPUT IMPEDANCE (kΩ)
3
4
5
6
7
8
–25 2505075
4250 G09
100
V
DRAIN
– V
EE
> 2.4V