3
GLOBAL ENERGY EFFICIENCY SPECIALIST
GAQ40S3V3B
DC-DC Converter Technical Manual V1.4
Parameter
Min.
Typ.
Max.
Units
Notes & Conditions
Absolute maximum ratings
Input voltage
Continuous
Transient (100 ms)
-
-
-
-
80
100
V
V
-
-
Operating ambient
temperature
-40
-
85
ºC
See the thermal derating curve
Storage temperature
-55
-
125
ºC
-
Operating humidity
5
-
95
% RH
Non-condensing
Input characteristics
Operating input voltage
36
48
75
V
-
Maximum input current
-
-
4.5
A
V
in
= 36 V; I
out
= 40 A
No-load loss
-
3.6
-
W
V
in
= 48 V; I
out
= 0 A
Input capacitance
47
100
-
µF
Aluminum electrolytic capacitor
Inrush transient
-
-
1
A²s
-
Input reflected ripple current
(peak to peak)
-
-
20
mA
Oscilloscope bandwidth: 20 MHz
Output characteristics
Output voltage set point
3.25
3.3
3.35
V
V
in
= 36 - 75 V; I
out
= 40 A
Output power
0
-
132
W
-
Output line regulation
-
-
±
0.20
%
V
in
= 36 - 75 V; I
out
= 40 A
Output load regulation
-
-
±
0.30
%
V
in
= 48 V; I
out
= 0 - 40 A
Regulated voltage precision
-
-
±
3
%
V
in
= 36 - 75 V; I
out
= 0 - 40 A
Temperature coefficient
-
-
0.02
%V
out
/
°
C
T
A
= -40
°
C to +85
°
C (-40
°
F to +185
°
F )
External capacitance
470
-
10
4
µF
-
Output current
0
-
40
A
-
Output ripple and noise
(peak to peak)
-
80
120
mV
Oscilloscope bandwidth: 20 MHz
Output voltage Trim range
80
-
110
%
-
Output voltage overshoot
-
-
5
%
The whole range of V
in
, I
out
and T
A
Output voltage rise time
-
5
20
ms
The whole range of V
in
, I
out
and T
A
Switching frequency
-
310
-
kHz
-
Electrical Specifications
Conditions: T
A
= 25
°
C (77
°
F), Airflow = 1 m/s (200 LFM), V
in
= 48 V, unless otherwise notes.
