Datasheet

MAX5921/MAX5939
-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°C, 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 6085
GATE PULLUP CURRENT
vs. TEMPERATURE
MAX5921TOC04
TEMPERATURE (
°
C)
GATE PULLUP CURRENT (µA)
V
GATE
= 0V
25
30
45
40
35
65
55
50
60
70
-40 10-15 35 6085
GATE PULLDOWN CURRENT
vs. TEMPERATURE AFTER A FAULT
MAX5921TOC05
TEMPERATURE (
°
C)
GATE PULLDOWN CURRENT (mA)
V
GATE
= 2V
0
15
60
45
30
75
90
04020 60 80 100
GATE PULLDOWN CURRENT
vs. OVERDRIVE DURING A CURRENT FAULT
MAX5921TOC06
OVERDRIVE (mV)
GATE PULLDOWN CURRENT (mA)
V
GATE
= 2V
0
100
400
300
200
500
600 900750 1050 1200
GATE PULLDOWN CURRENT
vs. OVERDRIVE DURING A SHORT CIRCUIT
MAX5921TOC07
OVERDRIVE (mV)
GATE PULLDOWN CURRENT (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)
MAX5921TOC08
TEMPERATURE (°C)
PWRGD OUTPUT LOW VOLTAGE (mV)
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)
MAX5921TOC09
TEMPERATURE (°C)
PWRGD OUTPUT LEAKAGE CURRENT (nA)
V
DRAIN
- V
EE
> 2.4V
0
200
100
500
400
300
800
700
600
900
04020 60 80 100
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX5921TOC01
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (µA)
T
A
= +85
°
C
T
A
= +25
°
C
T
A
= -40
°
C
7
9
8
12
11
10
14
13
15
04020 60 80 100
GATE VOLTAGE
vs. SUPPLY VOLTAGE
MAX5921TOC02
SUPPLY VOLTAGE (V)
GATE VOLTAGE (V)
T
A
= +25
°
C
40
42
48
46
44
58
56
52
50
54
60
-40 10-15 35 6085
CURRENT-LIMIT TRIP VOLTAGE
vs. TEMPERATURE
MAX5921TOC03
TEMPERATURE (
°
C)
TRIP VOLTAGE (mV)