参数资料
型号: PKB4418PIOAPNBLA
厂商: ERICSSON POWER MODULES AB
元件分类: 电源模块
英文描述: 1-OUTPUT 45 W DC-DC REG PWR SUPPLY MODULE
封装: ROHS COMPLIANT, PACKAGE-8
文件页数: 4/42页
文件大小: 2514K
代理商: PKB4418PIOAPNBLA
Output Ripple
Transient
PKB 4418 PIOANB - Typical Characteristics
Output voltage ripple (20mV/div.) at TPcb = +25 °C, VI = 53 V,
IO = 30 A resistive load with C = 10 F tantalum and 0 .1 F
ceramic capacitor.
Band width = 20 MHz . Time scale: 2 s/div.
Output voltage response to load current step-change
(7 .5-22 .5-7 .5 A) at TPcb=+25 °C, Vin=53 V.
Top trace: output voltage (200 mV/div.) .
Bottom trace: load step (15 A/div.)
Time scale: 0 .1 ms/div.
Output Voltage Adjust
Output voltage adjust resistor value vs .
percentage change in output voltage .
0
1
2
3
4
5
Output Voltage Adjust
The resistor value for an adjusted output voltage is calculated by
using the following equations:
Output Voltage Adjust Upwards, Increase:
Radj= 5 .11((1 .5(100+Δ%))/1 .225Δ%-(100+2Δ%)/Δ%) kOhm
Output Voltage Adjust Downwards, Decrease:
Radj= 5 .11(100 /Δ%-2) kOhm
Eg Increase 4% =>Vout = 1 .56 Vdc
5 .11(1 .5(100+4)/1 .225x4-(100+2x4)/4) = 25 kOhm
Eg Decrease 2% =>Vout = 1 .47 Vdc
5 .11(100/2-2)= 245 kOhm
Start-Up
Turn-Off
Start-up at IO = 30 A resistive load at TPcb = +25 °C,
VI = 53 V. Start enabled by connecting VI .
Top trace: output voltage (0 .5 V/div.) .
Bottom trace: input voltage (20 V/div.) .
Time scale: 20 ms/div.
Turn-off at IO = 30 A resistive load at TPcb = +25 °C,
VI = 53 V. Turn-off enabled by disconnecting VI .
Top trace: output voltage (0 .5 V/div.) .
Bottom trace: input voltage (50 V/div) .
Time scale: 0 .2 ms/div
.
EN/LZT 146 033 R9A Ericsson Power Modules, March 2007
PKB 4000 Datasheet
12
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