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Overvoltage Protection Switch/Limiter
Controllers Operate Up to 72V
Typical Operating Characteristics
(V IN = 14V, C REG = 4.7μF, I REG = 0, unless otherwise noted.)
SUPPLY CURRENT
SUPPLY CURRENT
vs. INPUT VOLTAGE
SUPPLY CURRENT vs. TEMPERATURE
vs. INPUT VOLTAGE
160
140
120
MAX6397
GATE ON
180
170
160
150
140
MAX6397
V IN = 72V
120
110
100
90
MAX6398
GATE ON
100
130
80
80
60
40
120
110
100
90
80
V IN = 14V
70
60
50
40
0
10
20
30
40
50
60
70
80
-50
-25
0
25
50
75
100
125
0
20
40
60
80
INPUT VOLTAGE (V)
SUPPLY CURRENT
vs. TEMPERATURE
TEMPERATURE ( ° C)
SHUTDOWN SUPPLY CURRENT
vs. INPUT VOLTAGE (MAX6397)
INPUT VOLTAGE (V)
SHUTDOWN SUPPLY CURRENT
vs. INPUT VOLTAGE
140
130
120
MAX6398
GATE ON
V IN = 72V
50
45
40
REGULATOR ON
GATE OFF
20
18
16
14
12
MAX6398
GATE OFF
110
35
10
8
100
90
V IN = 14V
30
25
6
4
2
80
20
0
-50
-25
0
25
50
75
100
125
0
10
20
30
40
50
60
70
80
0
20
40
60
80
12
10
8
6
4
2
0
TEMPERATURE ( ° C)
GATE-DRIVE VOLTAGE
vs. INPUT VOLTAGE
V OUT = V IN
6.0
5.8
5.6
5.4
5.2
5.0
4.8
4.6
4.4
4.2
4.0
INPUT VOLTAGE (V)
UVLO THRESHOLD
vs. TEMPERATURE
1.240
1.236
1.232
1.228
1.224
1.220
1.216
1.212
1.208
1.204
1.200
INPUT VOLTAGE (V)
SET THRESHOLD vs. TEMPERATURE
4
6
8
10 12 14 16 18 20 22 24
-50
-25
0
25
50
75
100
125
-50
-25
0
25
50
75
100
125
INPUT VOLTAGE (V)
TEMPERATURE ( ° C)
TEMPERATURE ( ° C)
4
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MAX6397VATA 制造商:Maxim Integrated Products 功能描述:OVERVOLTAGE PROTECTION SWITCH/LIMIT - Rail/Tube
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