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GDQ54S12B-4A DC-DC Converter
Technical Manual
4.5 Protection
Table 4-5 Input Protection
Parameter
Input undervoltage protection
Startup threshold
Shutdown threshold
Hysteresis
Auxiliary input undervoltage protection
Startup threshold
Shutdown threshold
Hysteresis
Table 4-6 Output Protection
Parameter
Output overcurrent
protection
Output short circuit
protection
Output overvoltage
protection
Overtemperature
protection threshold
Overtemperature
protection hysteresis
Issue 02 (2021-09-03)
Min.
-
32
30
1
-
25.5
22.5
0.7
Min.
Typ.
Max.
82.5
-
105
-
-
-
13.2
-
16
105
120
130
5
-
-
Copyright © Huawei Technologies Co., Ltd.
Typ.
Max.
Unit
-
-
-
34
36
V
32
34
V
2
3
V
-
-
-
28.0
31.5
V
26.0
29.5
V
1.9
3.0
V
Unit
Notes & Conditions
A
Hiccup mode
-
Hiccup mode, and system reports
OVP protection
Short circuit impedance is not less
than 100 milliohms.
V
Hiccup mode, and system reports
OVP protection
°C
Self-recovery; the overtemperature
protection hysteresis is obtained
by measuring the temperature of
°C
the PCB near the temperature
sensor.
4 Electrical Specifications
Notes &
Conditions
-
-
-
-
-
-
-
-
11
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