PQ60525HTA04 Datasheet, PDF (6/14 Pages) SynQor Worldwide Headquarters – Half-brick DC/DC Converter

Technical Specification
Input: 35-75 V
Output: 52.5 V
Current: 3.8 A (200W)
Package: Half-brick
4.0
3.5
3.0
2.5
2.0
1.5
400 LFM (2.0 m/s)
1.0
300 LFM (1.5 m/s)
200 LFM (1.0 m/s)
0.5
100 LFM (0.5 m/s)
50 LFM (0.25 m/s)
0.0
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 50 LFM through 400 LFM with air flowing
from output to input (nominal input voltage).
Figure 8: Thermal plot of converter at 3.2 amp load current (168W)
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).
Input voltage pre-applied. Top Trace: Vout (20V/div). Bottom Trace:
ON/OFF input (5V/div)
Figure 10: Turn-on transient at zero load (10 ms/div). Top Trace: Vout
(20V/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: 330µF, electrolytic output
capacitance. Top trace: Vout (200mV/div), Bottom trace: Iout (1A/div).
Figure 12: Output voltage response to step-change in load current (50%-
75%-50% of Iout(max): dI/dt = 5A/µs). Load cap: 330µF, electrolytic output
capacitance. Top trace: Vout (200mV/div), Bottom trace: Iout (1A/div).
Product # PQ60525HTA04
Phone [phone]
www.synqor.com
Doc.# 005-2HT652F Rev. B
03/08/04
Page 6