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+48V Quad Hot-Swap Controllers For
Power-Over-LAN
4  _______________________________________________________________________________________
Typical Operating Characteristics
(V
CSP
_ = V
CC
= +48V, V
DD
= +3.3V, V
RLY
= +12V, V
AGND
= V
DGND
= 0V, RTIM = open, T
A
= +25癈, unless otherwise specified.)
2.0
2.4
3.2
2.8
3.6
4.0
33
45 48
39 42
36
54 57
51
60 63 66 69 72
SUPPLY CURRENT
vs. INPUT VOLTAGE
INPUT VOLTAGE (V)
T
A
 = +85癈
T
A
 = +25癈
T
A
 = -40癈
3.8
3.4
3.0
2.6
2.2
3.5
3.4
3.3
3.2
3.1
3.0
2.9
2.8
2.7
2.6
2.5
-40
10
-15
35
60
85
SUPPLY CURRENT
vs. TEMPERATURE
TEMPERATURE (癈)
V
CC
 = +36V
V
CC
 = +48V
V
CC
 = +57V
V
CC
 = +72V
27
28
30
29
31
32
-40
10
-15
35
60
85
UNDERVOLTAGE LOCKOUT
vs. TEMPERATUREo
TEMPERATURE (癈)
V
CC
 RISING
V
CC
 FALLING
9.50
9.25
9.00
8.75
8.50
33 36 39
54 57 60
42 45 48 51
63    69
66
72
GATE OVERDRIVE VOLTAGE
vs. INPUT VOLTAGE
INPUT VOLTAGE (V)
T
A
 = -40癈
T
A
 = +85癈
T
A
 = +25癈
8.0
8.5
9.0
9.5
GATE OVERDRIVE VOLTAGE
vs. TEMPERATURE
TEMPERATURE (癈)
-40
35
60
-15
10
85
V
CC
 = +57V
V
CC
 = +72V
V
CC
 = +48V
V
CC
 = +36V
STARTUP WAVEFORMS
MAX5913A/14A toc06
0
A
B
C
D
0
0
0
4ms/div
A: V
ON
 = V
RLYON
, 5V/div
B: V
RLYD
, 20V/div
C: V
OUT
, 20V/div
D: V
GATE
, 20V/div
TURN-OFF WAVEFORMS
MAX5913A/14A toc07
0
A
B
C
D
0
0
0
4ms/div
A: V
ON
 = V
RLYON
, 5V/div
B: V
RLYD
, 20V/div
C: V
OUT
, 20V/div
D: V
GATE
, 20V/div
GATE TURN-OFF WAVEFORM
MAX5913A/14A toc08
0
A
B
0
C
0
D
0
10ms/div
A: V
RLYD
, 20V/div
B: V
RLYON
, 5V/div
C: V
ON
, 5V/div
D: V
GATE
, 20V/div
UVLO TURN-ON DELAY
MAX5913A/14A toc09
0
A
B
0
C
0
D
0
4ms/div
RLYON = V
DD
A: V
ON
, 5V/div
B: V
CC
, 10V/div
C: V
OUT
, 50V/div
D: V
GATE
, 50V/div
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