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E48SD12025NKFC Datasheet(PDF) 7 Page - Delta Electronics, Inc. |
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E48SD12025NKFC Datasheet(HTML) 7 Page - Delta Electronics, Inc. |
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7 / 27 page  DS_E48SD12025_07042013 E-mail DCDC@delta.com.tw http://www.deltaww.com/dcdc P7 ELECTRICAL CHARACTERISTICS CURVES Figure 8: Output voltage response to step-change in load current (75%-50% of Io, max; di/dt = 0.1A/µs, Vin=48V). Load cap:220µF, electrolytic capacitor ; 10µF, tantalum capacitor and 1µF ceramic capacitor. Top Trace: Vout (200mV/div, 200us/div); Bottom Trace: Io (10A/div, 200us/div). Scope measurement should be made using a BNC cable (length shorter than 20 inches). Position the load between 51 mm to 76 mm (2 inches to 3 inches) from the module.. Figure 9: Output voltage response to step-change in load current (50%-75% of Io, max; di/dt = 0.1A/µs, Vin=48V). Load cap: 220µF, electrolytic capacitor ;10µF, tantalum capacitor and 1µF ceramic capacitor. Top Trace: Vout (200mV/div, 200us/div); Bottom Trace: Io (10A/div, 200us/div). Scope measurement should be made using a BNC cable (length shorter than 20 inches). Position the load between 51 mm to 76 mm (2 inches to 3 inches) from the module.. Figure 10: Test set-up diagram showing measurement points for Input Terminal Ripple Current and Input Reflected Ripple Current. Note: Measured input reflected-ripple current with a simulated source Inductance (LTEST) of 12 μH. Capacitor Cs offset possible battery impedance. Measure current as shown above. Figure 11: Input Terminal Ripple Current, ic, at full rated output current and nominal input voltage with 12µH source impedance and 100µF electrolytic capacitor (0.2A/div，2us/div). |
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