-48V Hot-Swap Controllers with External
R
SENSE
and High Gate Pulldown Current
4  _______________________________________________________________________________________
Typical Operating Characteristics
(V
DD
= +48V, V
EE
= 0V, T
A
= +25癈, unless otherwise noted.)
43.0
43.2
43.8
43.6
43.4
44.8
44.6
44.2
44.0
44.4
45.0
-40
10
-15
35
60
85
GATE PULLUP CURRENT
vs. TEMPERATURE
TEMPERATURE (癈)
V
GATE
 = 0V
25
30
45
40
35
65
55
50
60
70
-40
10
-15
35
60
85
GATE PULLDOWN CURRENT
vs. TEMPERATURE AFTER A FAULT
TEMPERATURE (癈)
V
GATE
 = 2V
0
15
60
45
30
75
90
0
40
20
60
80
100
GATE PULLDOWN CURRENT
vs. OVERDRIVE DURING A CURRENT FAULT
OVERDRIVE (mV)
V
GATE
 = 2V
0
100
400
300
200
500
600
900
750
1050
1200
GATE PULLDOWN CURRENT
vs. OVERDRIVE DURING A SHORT CIRCUIT
OVERDRIVE (mV)
V
GATE
 = 2V
0
40
160
120
80
20
140
100
60
180
-40
10
-15
35
60
85
PWRGD OUTPUT LOW VOLTAGE
vs. TEMPERATURE (MAX5921A)
TEMPERATURE (癈)
I
OUT
 = 5mA
0.001
0.01
10
1
0.1
100
-40
10
-15
35
60
85
PWRGD OUTPUT LEAKAGE CURRENT
vs. TEMPERATURE (MAX5921B)
TEMPERATURE (癈)
V
DRAIN
 - V
EE
 > 2.4V
0
200
100
500
400
300
800
700
600
900
0
40
20
60
80
100
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
SUPPLY VOLTAGE (V)
T
A
 = +85癈
T
A
 = +25癈
T
A
 = -40癈
7
9
8
12
11
10
14
13
15
0
40
20
60
80
100
GATE VOLTAGE
vs. SUPPLY VOLTAGE
SUPPLY VOLTAGE (V)
T
A
 = +25癈
40
42
48
46
44
58
56
52
50
54
60
-40
10
-15
35
60
85
CURRENT-LIMIT TRIP VOLTAGE
vs. TEMPERATURE
TEMPERATURE (癈)
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