pq30033qga25 SynQor Worldwide Headquarters, pq30033qga25 Datasheet - Page 5

• Manufacturer Part Number: pq30033qga25
• Description: Quarter-brick Dc/dc Converter
• Manufacturer: SynQor Worldwide Headquarters

Product # PQ30033QGA25
T
T
echnical S
echnical S
Figure 1: Efficiency at nominal output voltage vs. load current for min-
imum, nominal, and maximum input voltage at 25
Figure 3: Power dissipation at nominal output voltage vs. load current
for minimum, nominal, and maximum input voltage at 25
Figure 5: Maximum output power derating curves vs. ambient air tem-
perature for airflow rates of 100 LFM through 400 LFM with air flow-
ing across the converter from pin 3 to pin 1 (24V input).
25
20
15
10
95
90
85
80
75
70
65
60
12
11
10
5
0
9
8
7
6
5
4
3
2
1
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)
25
5
5
Ambient Air Temperature (
pecification
pecification
40
Load Current (A)
Load Current (A)
10
10
Phone [phone]
55
15
15
o
C)
°
C.
70
20
20
°
C.
18 Vin
48 Vin
60 Vin
18 Vin
48 Vin
60 Vin
www.synqor.com
85
25
25
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
sideways from pin 3 to pin 1 (24V input).
°
C (48V input).
92
91
90
89
88
87
86
8
7
6
5
4
3
100
100
Doc.# 005-2QG33LU Rev. B
200
200
P
P
Current:
Current:
ackage:
ackage:
Output:
Output:
Air Flow (LFM)
Air Flow (LFM)
Semiconductor junction temperature is
Input:
Input:
within 1 ° C of surface temperature
4/28/05
300
300
°
18-60 V
3.3 V
25 A
Quarter-brick
C, 40
18-60 V
3.3 V
25 A
Quarter-brick
°
C, and 55
°
C, 40
25 C
40 C
55 C
25 C
40 C
55 C
°
°
C, and
C (48V
400
400
°
Page 5
C