Performance Curves
Quarter
Brick
7
6
5
24Vin 15Vout 6.7A
Semiconductor junction temperature is
within 1°C of surface temperature
I
out
(A)
4
3
400 LFM (2.0 m/s)
2
1
0
0
300 LFM (1.5 m/s)
200 LFM (1.0 m/s)
100 LFM (0.5 m/s)
0 LFM (0 m/s)
25
40
55
o
70
85
Vin = 24V
Ambient Air Temperature ( C)
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 pin 1 to pin 3 (nominal input voltage).
Figure 8:
Thermal plot of converter at 4.4 amp load current with 55
°
C
air flowing at the rate of 200 LFM. Air is flowing across the converter
from pin 1 to pin 3 (nominal input voltage).
Figure 9:
Turn-on transient at full load (resistive load) (2 ms/div).
Ch1: Vout (5V/div)
Ch2: ON/OFF input (5V/div)
Figure 10:
Turn-on transient at zero load (2 ms/div).
Ch1: Vout (5V/div)
Ch2: 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 m
Ω
ESR tantalum capacitor
and 1µF ceramic capacitor. Ch1: Vout (500mV/div), Ch2: Iout (5A/div).
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50% of Iout(max): dI/dt = 5A/µs). Load cap: 470µF, 30 m
Ω
ESR tantalum capaci-
tor and 1µF ceramic capacitor. Ch1: Vout (500mV/div), Ch2: Iout (5A/div).
Doc.# 005-2QG215D_A
3/1/02
Page 5
Figure 12
:
Output voltage response to step-change in load current (50%-75%-
Product # PQ24150QGA07
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