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GAQ37S12B-4
DC-DC Converter Technical Manual V1.0
Electrical Specifications
Conditions: T
= 25°C (77°F), Airflow = 1 m/s (200 LFM), V
A
Parameter
Protection characteristics
Input undervoltage protection
Startup threshold
Shutdown threshold
Hysteresis
Output overcurrent protection
Output short circuit protection
Output overvoltage protection
Overtemperature protection
Threshold
Hysteresis
Dynamic characteristics
Overshoot amplitude
Recovery time
Efficiency
100% load
50% load
20% load
Isolation characteristics
Input-to-output Isolation voltage
Other characteristics
Remote on/off voltage
Low level
High level
On/Off current
Low level
High level
Reliability characteristics
Mean time between failures
(MTBF)
GLOBAL ENERGY EFFICIENCY SPECIALIST
= 48 V, unless otherwise notes.
in
Min.
Typ.
Max.
32
34
36
30
32
34
1
2
3
40.7
-
51.8
-
-
-
13.8
-
16.8
105
115
125
5
-
-
-
-
600
-
-
500
94.0
95.0
-
94.5
95.5
-
92.0
93.0
-
-
-
1500
-0.7
-
1.2
3.5
-
12
-
-
1.0
-
-
-
-
2.5
-
Units
Notes & Conditions
V
-
V
-
-
V
A
Hiccup mode
-
Hiccup mode
V
Constant voltage
Self-recovery
°C
The values are obtained by measuring
the temperature of the PCB near the
°C
thermal resistor.
Current change rate: 0.1 A/µs
mV
load : 25% - 50% - 25%; 50% - 75% -
µs
50%
%
V
= 48 V; I
= 37 A
in
out
%
V
= 48 V; I
= 18.5 A
in
out
%
V
= 48 V; I
= 7.4 A
in
out
V DC
Basic Isolation
V
-
-
V
mA
-
-
µA
Million
Telcordia SR332; 80% load; Airflow =
1.5m/s (300LFM); T
hours
4
= 40°C (104°F)
A
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