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5 page 
Product # PQ60033ETL30 Phone 1-888-567-9596 Doc.# 005-2ET633F Rev. A 06/01/06 Page 5 Input: Input: Output: Output: Current: Current: PPackage: ackage: 35-75 V 35-75 V 3.3 V 3.3 V 30 A 30 A Eighth-brick Eighth-brick T Technical S echnical Specification pecification 0 5 10 15 20 25 30 25 40 55 70 85 Ambient Air Temperature (ºC) 400 LFM (2.0 m/s) 300 LFM (1.5 m/s) 200 LFM (1.0 m/s) 100 LFM (0.5 m/s) Figure 5: 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 3 to pin 1(nominal input voltage). Figure 6: Thermal plot of converter at 28.5 amp load current (94.05W) with 70°C air flowing at the rate of 200 LFM. Air is flowing across the converter from 3 to pin 1 (nominal input voltage). 65 70 75 80 85 90 95 0 5 10 15 20 25 30 Load Current (A) 35 Vin 48 Vin 75 Vin Figure 1: Efficiency at nominal output voltage vs. load current for min- imum, nominal, and maximum input voltage at 25°C. 87 88 89 90 91 92 93 100 200 300 400 Airflow (LFM) 25 C 40 C 55 C Figure 2: Efficiency at nominal output voltage and 60% rated power vs. airflow rate for ambient air temperatures of 25°C, 40°C, and 55°C (nominal input voltage). 0 2 4 6 8 10 12 0 3 6 9 12151821242730 Load Current (A) 35 Vin 48 Vin 75 Vin Figure 3: Power dissipation at nominal output voltage vs. load current for minimum, nominal, and maximum input voltage at 25°C. 3 4 5 6 7 100 200 300 400 Airflow (LFM) 25 C 40 C 55 C Figure 4: Power dissipation at nominal output voltage and 60% rated power vs. airflow rate for ambient air temperatures of 25°C, 40°C, and 55°C (nominal input voltage). |
