Technical Specification
30
Input:
Output:
Current:
Package:
35-75 V
12 V
30 A
Half-brick
20
15
10
400 LFM (2.0 m/s)
300 LFM (1.5 m/s)
200 LFM (1.0 m/s)
100 LFM (0.5 m/s)
5
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 100 LFM through 400 LFM with air flow-
ing from input to output (nominal input voltage).
30
Figure 8:
Thermal plot of converter at 25 amp load current (300W)
with 55
°
C air flowing at the rate of 200 LFM. Air is flowing across the
converter from input to output (nominal input voltage).
20
15
10
400 LFM (2.0 m/s)
300 LFM (1.5 m/s)
200 LFM (1.0 m/s)
100 LFM (0.5 m/s)
5
0
0
25
40
55
70
85
Ambient Air Temperature (ºC)
Figure 9:
Maximum output power derating curves vs. ambient air tem-
perature for airflow rates of 100 LFM through 400 LFM with air flow-
ing from pin 1 to pin 4 (nominal input voltage).
Figure 10:
Thermal plot of converter at 24.5 amp load current (294W)
with 55
°
C air flowing at the rate of 200 LFM. Air is flowing across the
converter from pin 1 to pin 4 (nominal input voltage).
Figure 11:
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)
Product # BQ60120HEA30
Phone 1-888-567-9596
Figure 12:
Turn-on transient at zero load (10 ms/div). Top Trace: Vout
(5V/div). Bottom Trace: ON/OFF input (5V/div).
Doc.# 005-2BH612M Rev. B
09/02/05
Page 7
Semiconductor junction temperature is
within 1°C of surface temperature
25
Iout (A)
Semiconductor junction temperature is
within 1°C of surface temperature
25
Iout (A)
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