PQ40033QGA25NNS-G SYNQOR, PQ40033QGA25NNS-G Datasheet - Page 5

• Manufacturer Part Number: PQ40033QGA25NNS-G
• Description: PowerQor DC/DC Converters
• Manufacturer: SYNQOR

Specifications of PQ40033QGA25NNS-G

• Dc / Dc Converter O/p Type: Fixed
• No. Of Outputs: 1
• Input Voltage: 18V To 75V
• Power Rating: 82W
• Output Voltage: 3.3V
• Output Current: 25A
• Approval Bodies: CUL, TUV, UL
• Supply Voltage: 48V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Product # PQ40033QGA25
T
T
echnical S
echnical S
Figure 1: Efficiency at nominal output voltage vs. load current for 24V,
48V and 75V input at 25
Figure 3: Power dissipation at nominal output voltage vs. load current
for 24V, 48V and 75V input at 25
Figure 5: Maximum output power derating curves vs. ambient air tem-
perature for airflow rates of 50 LFM through 400 LFM with air flowing
across the converter from pin 3 to pin 1 (24V input).
95
90
85
80
75
70
65
60
14
12
10
25
20
15
10
8
6
4
2
0
5
0
0
0
0
400 LFM (2.0 m/s)
300 LFM (1.5 m/s)
200 LFM (1.0 m/s)
100 LFM (0.5 m/s)
50 LFM (0.25 m/s)
5
25
5
pecification
pecification
°
C.
Ambient Air Temperature (
Load Current (A)
Load Current (A)
10
10
40
Phone [phone]
°
C.
15
15
55
o
C)
20
20
70
24 Vin
48 Vin
75 Vin
24 Vin
48 Vin
75 Vin
www.synqor.com
25
25
85
Figure 2: Efficiency at nominal output voltage and 60% rated power vs.
airflow rate for ambient air temperatures of 25
input).
Figure 4: Power dissipation at nominal output voltage and 60% rated
power vs. airflow rate for ambient air temperatures of 25
55
Figure 6: Thermal plot of converter at 25 amp load current with 55
air flowing at the rate of 200 LFM. Air is flowing across the converter
from pin 3 to pin 1 (24V input).
°
C (48V input).
91
90
89
88
87
86
85
8
7
6
5
4
0
0
Doc.# 005-2QG333D Rev. B
100
100
P
P
Current:
Current:
ackage:
ackage:
Output:
Output:
200
200
Air Flow (LFM)
Air Flow
Semiconductor junction temperature is
Input:
Input:
within 1°C of surface temperature
(LFM)
300
300
05/05/06
°
18-75 V
3.3 V
25 A
Quarter-brick
C, 40
18-75 V
3.3 V
25 A
Quarter-brick
°
C, and 55
400
400
°
C, 40
25 C
40 C
55 C
25 C
40 C
55 C
°
°
C, and
C (48V
500
°
500
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C