PQ60240HZX25 Datasheet, PDF (8/16 Pages) SynQor Worldwide Headquarters – No minimum load requirement means no preload resistors required

Technical Figures
Input: 35-75V
Output: 24V
Current: 25A
Package: Half-brick
30
25
20
15
10
400LFM(2.0m /s)
300LFM(1.5m /s)
5
200LFM(1.0m /s)
100LFM(0.5 m/S)
0
25
40
55
70
85
Ambient Air Temperature(°C)
Figure 7: Thermal Derating (max output current vs. ambient air temperature)
for airflow rates of 100 LFM through 400 LFM with air flowing lenghtwise from
input to output (nominal input voltage).
Figure 8: Thermal Image of converter at 13.5 amp load current (324W) with
55°C air flowing at the rate of 200 LFM. Air is flowing across the converter
from input to output (nominal input voltage).
Figure 9: Turn-on Transient at full load (resistive load) (20 ms/div). Input
voltage pre-applied. Top Trace: Vout (10V/div). Bottom Trace: ON/OFF
input(10V/div)
Figure 10: Turn-on Transient at zero load (20 ms/div). Top Trace: Vout (10V/
div). Bottom Trace: ON/OFF input (10V/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: 1µF ceramic and 15µF
tantalum output capacitors. Top trace: Vout (1V/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 = 2A/µs). Load cap: 1µF ceramic and 15µF
tantalum output capacitors. Top trace: Vout (2V/div). Bottom trace: Iout (10A/
div).
Product # PQ60240HZx25
Phone [phone]
www.synqor.com
Doc.# 005-0005987 Rev. D
03/04/14
Page 8