PQ60120HPA20 Datasheet, PDF (6/13 Pages) SynQor Worldwide Headquarters – Half-brick DC/DC Converter

Technical Specification
Input: 35-75 V
Output: 12 V
Current: 20 A
Package: Half-brick
20
18
16
14
12
10
8
400 LFM (2.0 m/s)
6
300 LFM (1.5 m/s)
4
200 LFM (1.0 m/s)
2
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).
Figure 8: Thermal plot of converter at 17 amp load current (204 Watts)
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 (5V/div). Bottom Trace:
ON/OFF input (5V/div)
Figure 10: Turn-on transient at zero load (10 ms/div).
Top Trace: Vout (5V/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 and
1µF ceramic. Top trace: Vout (1V/div), Bottom trace: Iout (5A/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 and
1µF ceramic. Top trace: Vout (1V/div), Bottom trace: Iout (5A/div).
Product # PQ60120HPA20
Phone [phone]
www.synqor.com
Doc.# 005-2HP612K Rev. E
3/08/05
Page 6