PQ60050HGA30 Datasheet, PDF (6/14 Pages) SynQor Worldwide Headquarters – 30 Amp, No Heatsink, Isolated DC/DC Converter

30
25
20
15
10
400 LFM (2.0 m/s)
300 LFM (1.5 m/s)
5
200 LFM (1.0 m/s)
100 LFM (0.5 m/s)
0 LFM (0 m/s)
0
0
25
40
55
70
85
Ambient Air Temperature (^oC)
Figure 7: Maximum output power derating curves vs. ambient air tem-
perature for airflow rates of 0 LFM through 400 LFM with air flowing
from output to input (nominal input voltage).
Performance Curves
Half
Brick
48Vin 5.0Vout 30A
Figure 8: Thermal plot of converter at 24.5 amp load current with 55°C
air flowing at the rate of 200 LFM. Air is flowing across the converter
from output to input (nominal input voltage).
Figure 9: Turn-on transient at full load (resistive load) (10 ms/div).
Top Trace: Vout (2V/div)
Bottom Trace: ON/OFF input (5V/div)
Figure 10: Turn-on transient at zero load (10 ms/div).
Top Trace: Vout (2V/div)
Bottom Trace: ON/OFF input (5V/div)
Figure 11: Output voltage response to step-change in load current (50%-75%-50%
of Iout(max); dI/dt = 0.1A/µs). Load cap: 15µF, 450 mΩ ESR tantalum capacitor and
1µF ceramic capacitor. Top trace: Vout (200mV/div), Bottom trace: Iout (10A/div).
Figure 12: Output voltage response to step-change in load current (50%-75%-50%
of Iout(max): dI/dt = 5A/µs). Load cap: 480µF, 15 mΩ ESR tantalum capacitor and
1µF ceramic capacitor. Top trace: Vout (200mV/div), Bottom trace: Iout (10A/div).
Product # PQ60050HGA30
Phone [phone]
Doc.# 005-2HG650C Rev. E
9/30/08
Page 6