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PQ60050HPA45 Datasheet(PDF) 6 Page - SynQor Worldwide Headquarters |
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PQ60050HPA45 Datasheet(HTML) 6 Page - SynQor Worldwide Headquarters |
6 / 13 page 0 5 10 15 20 25 30 35 40 45 0 2540 5570 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) 50 LFM (0.25 m/s) Figure 7: Maximum output power derating curves vs. ambient air tem- perature for airflow rates of 50 LFM through 400 LFM with air flowing from output to input (nominal input voltage). Product # PQ60050HPA45 Phone 1-888-567-9596 Doc.# 005-2HP650K Rev. C 4/16/04 Page 6 Figure 8: Thermal plot of converter at 36 amp load current (180 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 (2V/div). Bottom Trace: ON/OFF input (5V/div) Figure 10: Turn-on transient at zero load (10 ms/div). Top Trace: Vout (2V/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 m Ω ESR tantalum cap and 1µF ceramic cap. Top trace: Vout (200mV/div), Bottom trace: Iout (20A/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, 15 m Ω ESR tantalum cap and 1µF ceramic cap. Top trace: Vout (200mV/div), Bottom trace: Iout (20A/div). Half Half Brick Brick Performance Curves 48Vin 5.0Vout 45A |
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