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PQ48018HTA60PKS Datasheet(PDF) 6 Page - SynQor Worldwide Headquarters |
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PQ48018HTA60PKS Datasheet(HTML) 6 Page - SynQor Worldwide Headquarters |
6 / 14 page 0 10 20 30 40 50 60 025 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) 0 LFM (0 m/s) 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 input to output (nominal input voltage). Product # PQ48018HTA60 Phone 1-888-567-9596 Doc.# 005-2HT418F Rev. O 11/20/02 Page 6 Figure 8: Thermal plot of converter at 52 amp load current 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 load (resistive load) (10 ms/div). Top Trace: Vout (0.5V/div) Bottom Trace: ON/OFF input (5V/div) Figure 10: Turn-on transient at zero load (10 ms/div). Top Trace: Vout (0.5V/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 capacitor and 1µF ceramic capacitor. Top trace: Vout (100mV/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: 480µF, 15 m Ω ESR tantalum capacitor and 1µF ceramic capacitor. Top trace: Vout (200mV/div), Bottom trace: Iout (20A/div). Half Half Brick Brick Performance Curves 48Vin 1.8Vout 60A |
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