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BQ55120QZB67 Datasheet(PDF) 7 Page - SynQor Worldwide Headquarters |
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BQ55120QZB67 Datasheet(HTML) 7 Page - SynQor Worldwide Headquarters |
7 / 13 page Input: 35-55V Output: 12V Current: 67 A Package: Quarter-brick Product # BQ55120QZB67 Phone 1-888-567-9596 www.synqor.com Doc.# 005-0006255 Rev. C 02/10/16 Page 7 Input: 35-55V Output: 12V Current: 67 A Package: Quarter-brick 0 10 20 30 40 50 60 70 25 40 50 60 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) 0 100 200 300 400 500 600 700 800 25 40 50 60 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 7: Maximum output current derating curve vs. ambient air temperature (with both baseplate and 0.5” heat sink) at different airflow rates with air flowing from output to input (nominal input voltage). Figure 8: Maximum output power derating curve vs. ambient air temperature (with both baseplate and 0.5” heat sink) at different airflow rates with air flowing from output to input (nominal input voltage). Figure 9: Turn-on transient at half load (resistive load) (1 ms/div). Load cap: 15µF tantalum capacitor and 5mF ceramic capacitor bank. Input voltage pre- applied. Ch 1: Vout (2V/div). Ch 2: ON/OFF input (2 V/div). Figure 10: Turn-on transient at zero load (1 ms/div). Load cap: 15µF tantalum capacitor and 5mF ceramic capacitor bank. Ch 1: Vout (2V/div), Ch 2: ON/OFF input (2 V/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 tantalum cap and 1µF ceramic cap. Ch 1: Vout (1V/div), Ch 2: Iout (25A/div). Figure 12: Output voltage response to step-change in load current (50%-75%- 50% of Iout(max): dI/dt = 1A/µs). Load cap: 15µF, 30 mΩ ESR tantalum cap and 1µF ceramic cap. Ch 1: Vout (1V/div), Ch 2: Iout (25A/div). Technical Figures |
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