PQ60050QTA30 Datasheet, PDF (6/13 Pages) SynQor Worldwide Headquarters – Quarter-brick DC/DC Converter

Technical Specification
Input: 35-75 V
Output: 5.0 V
Current: 30 A
Package: Quarter-brick
30
25
20
15
10
400 LFM (2.0 m/s)
300 LFM (1.5 m/s)
200 LFM (1.0 m/s)
5
100 LFM (0.5 m/s)
50 LFM (0.25 m/s)
0
0
25
40
55
70
85
Ambient Air Temperature (oC)
Figure 7: Maximum output power derating curves vs. ambient air
temperature for airflow rates of 50 LFM through 400 LFM with air flowing
across the converter from input to output (nominal input voltage).
Semiconductor junction temperature
is within 1°C of surface temperature
Figure 8: Thermal plot of converter at 26.5 amp load current (133W)
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 rated load (resistive load) (2 ms/div) Input
voltage pre-applied. Ch 1: Vout (2V/div). Ch 2: ON/OFF input (5V/div)
Figure 10: Turn-on transient at zero load current (2 ms/div).
Ch 1: Vout (2V/div)
Ch 2: 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: 10µF, 100 mW ESR tantalum
cap and 1µF ceramic capacitor. Ch 1: Vout (500mV/div), Ch 2: 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: 470µF, 30 mW ESR tantalum
capacitor and 1µF ceramic cap. Ch 1: Vout (500mV/div), Ch 2: Iout (10A/div).
Product # PQ60050QTA30
Phone [phone]
www.synqor.com
Doc.# 005-2QT650C Rev. E
05/20/09
Page 6