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PKM4510EPI Datasheet(PDF) 10 Page - Ericsson |
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PKM4510EPI Datasheet(HTML) 10 Page - Ericsson |
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10 / 37 page  10 EN/LZT 146 051 R7A © Ericsson Power Modules, February 2007 PKM 4000E PI Datasheet PKM 1LE PI Typical Characteristics Output Ripple Transient Output voltage ripple (5mV/div.) at TPcb=+25 °C, Vin=53 V, Io=20A resistive load with C=10 µF tantalum and 0 .1 µF ceramic capacitors . Band width=20MHz . Time scale: 2µs / div. Output voltage response to load current step-change (5-15-5 A) at TPcb=+25 °C, Vin=53 V. Top trace: load current (5 A/div.) . Bottom trace: output voltage (100mV/div.) Time scale: 0 .1 ms/div. Output Voltage Adjust (see operating information) Start-Up Turn-Off Start-up at Io=20A resistive load at TPcb=+25 °C, Vin=53 V. Start enabled by connecting Vin . Top trace: input voltage (20 V/div.) . Bottom trace: output voltage (0 .5 V/div.) . Time scale: 5 ms/div. Turn-off at Io=20A resistive load at TPcb=+25 °C, Vin=53 V. Turn-off enabled by disconnecting Vin . Top trace: input voltage (20mV/div.) . Bottom trace: Output voltage (0 .5 V/div.) . Time scale: 500 µs/div. The resistor value for an adjusted output voltage is calculated by using the following equations: Output Voltage Adjust Upwards, Increase: Eg Increase 4% =>Vout = 1 .248 Vdc 8.85x(100+Δ%)x9.1x1.2 21.1x Δ%x1.225 - 5.11 kOhm Radj = 8.85x(100+4)x9.1x1.2 21.1x 4x1.225 - 5.11 kOhm Radj = = 92 kOhm 1 1 12 9.1 + 100 100- % Δ -1 1 - 5.11 kOhm Radj = 1 1 12 9.1 + 100 100-4 -1 1 - 5.11 kOhm Radj = = 119.1 kOhm Output Voltage Adjust Downwards, Decrease: Eg Decrease 4% =>Vout = 1 .152 Vdc |
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