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SQ60120QPA28NRS Datasheet(PDF) 6 Page - SynQor Worldwide Headquarters |
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SQ60120QPA28NRS Datasheet(HTML) 6 Page - SynQor Worldwide Headquarters |
6 / 12 page Product # SQ60120QPA28 Phone 1-888-567-9596 www.synqor.com Doc.# 005-2SQ612J Rev. B 06/17/09 Page 6 Input: Output: Current: Package: 36-75 V 12 V 28 A Quarter-brick Technical Specification 0 5 10 15 20 25 30 25 35 45 55 65 75 85 Ambient Air Temperature (oC) 400 300 200 100 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 output to input (nominal input voltage). Figure 8: Thermal plot of converter at 21.9 amp load current (262.8W) 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 half load (resistive load) and 3mF out- put capacitance (2.0 ms/div). Input voltage pre-applied. Channel 1: Vout (5V/div). Channel 2: ON/OFF input (2V/div). Figure 10: Turn-on transient at zero load and 3mF output capaci- tance (2.0ms/div). Input voltage pre-applied. Channel 1: Vout (5V/div). Channel 2: ON/OFF input (2V/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: 100µF, 100 m W ESR tantalum cap. Top trace: Vout (2V/div), Bottom trace: Iout (10A/div). Figure 12: Test set-up diagram showing measurement points for Input Terminal Ripple Current (Figure 13), Input Reflected Ripple Current (Figure 14) and Output Voltage Ripple (Figure 15). 10 µH source impedance DC-DC Converter See Fig. 14 See Fig. 13 See Fig. 15 1 µF ceramic capacitor 15µF, 450mW ESR tantalum capacitor 47µF, <1W ESR electrolytic capacitor VSOURCE iS iC VOUT |
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