max5938 Maxim Integrated Products, Inc., max5938 Datasheet - Page 5

• Manufacturer Part Number: max5938
• Description: Max5938 -48v Hot-swap Controller With Vin Step Immunity, No Rsense, And Overvoltage Protection
• Manufacturer: Maxim Integrated Products, Inc.

(V
unless otherwise noted.)
-48V Hot-Swap Controller with V
EE
R
C
LOAD
LOAD
= -48V, GND = 0V, V
= 48Ω
= 100µF
STARTUP WAVEFORM
40ms/div
_______________________________________________________________________________________
500
450
400
350
300
250
200
150
100
1.6
1.4
1.2
1.0
0.8
0.6
0.4
50
0
-40
0
IN
MAX5938 toc06
No R
= GND - V
NORMALIZED CIRCUIT-BREAKER
1
THRESHOLD vs. TEMPERATURE
GATE PULLDOWN CURRENT
-15
2
vs. GATE VOLTAGE
V
50V/div
V
10V/div
V
50V/div
V
50V/div
I
2A/div
3
IN
TEMPERATURE (°C)
IN
GATE
OUT
PGOOD
10
4
EE
V
GATE
SENSE
, POL_SEL = floating, all voltages are referenced to V
5
(V)
35
6
V
7
IN
Typical Operating Characteristics (continued)
= 48V
60
8
CIRCUIT-BREAKER EVENT
9
, and Overvoltage Protection
10
85
1ms/div
IRFR1310
R
POL_SEL = OPEN
10.0
CB_ADJ
9.5
9.0
8.5
8.0
7.5
7.0
6.5
6.0
5.5
5.0
4.0
3.9
3.8
3.7
3.6
3.5
3.4
3.3
3.2
3.1
3.0
-40
-40
C
MAX5938 toc07
C
= 2kΩ
GATE
GATE
= 0, C
-15
= 0, C
-15
V
vs. TEMPERATURE
vs. TEMPERATURE
IN
V
V
10V/div
V
50V/div
V
50V/div
I
2A/div
LOAD
V
LOAD
IN
IN
TEMPERATURE (°C)
GATE
OUT
PGOOD
TEMPERATURE (°C)
OUT
= 48V
V
RETRY TIME
= 72V
IN
10
10
= 100µF
= 100µF
= 12V
IN
SLEW RATE
35
35
Step Immunity,
EE
V
IN
, unless otherwise noted. T
= 48V
60
60
SHORT-CIRCUIT EVENT
85
85
400ns/div
IRFR1310
R
R
POL_SEL = OPEN
CB_ADJ
LOAD
= 48Ω
MAX5938 toc08
= 2kΩ
A
= +25°C,
V
10V/div
V
50V/div
V
50V/div
I
10A/div
IN
GATE
OUT
PGOOD
5