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PQ48150QGA07PYS Datasheet(PDF) 6 Page - SynQor Worldwide Headquarters |
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PQ48150QGA07PYS Datasheet(HTML) 6 Page - SynQor Worldwide Headquarters |
6 / 13 page Product # PQ48150QGA07 Phone 1-888-567-9596 Doc.# 005-2QG415D Rev. D 8/16/02 Page 6 Performance Curves 48Vin 15Vout 6.7A 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 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) 0 LFM (0 m/s) Quarter Quarter Brick Brick Figure 7: Maximum output power-derating curves vs. ambient air tem- perature for airflow rates of 0 LFM through 400 LFM with air flowing lengthwise from input to output (nominal input voltage). Figure 8: Thermal plot of converter at 5.4 amp load current (81W) with 55°C air flowing at the rate of 200 LFM. Air is flowing across the con- verter from input to output (nominal input voltage). Figure 9: Turn-on transient at full load (resistive load) (2 ms/div). Ch 1: Vout (5V/div) Ch 2: ON/OFF input (5V/div) Figure 10: Turn-on transient at zero load (2 ms/div). Ch 1: Vout (5V/div) Ch 2: 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. Ch 1: Vout (500mV/div), Ch 2: Iout (2A/div). Figure 12: Output voltage response to step-change in load current (50%-75%- 50% of Iout(max): dI/dt = 5A/µs). Load cap: 100µF, 30 m Ω ESR tantalum capacitor and 1µF ceramic cap. Ch 1: Vout (500mV/div), Ch 2: Iout (2A/div). Semiconductor junction temperature is within 1 °C of surface temperature |
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