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参数资料
| 型号： | PKF4918CSI |
| 厂商： | ERICSSON POWER MODULES AB |
| 元件分类： | 电源模块 |
| 英文描述： | 1-OUTPUT 9 W DC-DC REG PWR SUPPLY MODULE |
| 封装： | 0.315 INCH HEIGHT, SMD-18 |
| 文件页数： | 6/8页 |
| 文件大小： | 222K |
| 代理商： | PKF4918CSI |
6
EN/LZT 146 024 R1A Ericsson Power Modules AB, March 2003
+
-
Supply
voltage
L1
C2
C3
C6
C5
C4
C1
L2
pin 18
pin 17
EMC Specifications
The PKF power module is measured directly.
The fundamental switching frequency is 305 kHz ±5% @
IO = (0.1…1.0) × IOmax.
Frequency range
Voltage level
30...300 MHz
1.0 Vrms
The signal is amplitude modulated with 1 kHz/80% and applied in
both differential and common mode.
Conducted EMS
Electro Magnetic Susceptibility is measured by injection of
electrical disturbances on the input terminals. No deviation
outside the VO tolerance band will occur under the following
conditions:
External Filter (class B)
Required external input lter in order to meet class B in EN 55022,
CISPR 22 and FCC part 15J.
EFT
Electrical Fast Transients on the input terminals could affect the
output voltage regulation causing functional errors on the Printed
Board Assembly (PBA). The PKF power modules withstand EFT
levels of 0.5 kV keeping VO within the tolerance band and
2.0 kV without destruction. Tested according to IEC publ. 801-4.
Output Ripple & Noise (VOac)
Output ripple is measured as the peak to peak voltage of the
fundamental switching frequency.
Radiated EMS (Electro-Magnetic Fields)
Radiated EMS is measured according to test methods in
IEC Standard publ. 801-3. No deviation outside the VO tolerance
band will occur under the following conditions:
Frequency range
Voltage level
0.01...200 MHz
3 Vrms/m
200...1,000 MHz
3 Vrms/m
1...12 GHz
10 Vrms/m
Test
Voltage level
Air discharge
±4 kV
Contact discharge
±2 kV
ESD
Electro Static Discharge is tested according to IEC publ. 801-2. No
destruction will occur if the following voltage levels are applied to
any of the terminal pins:
Test set up
Conducted EMI (input teminals)
L1 = 51H ( Recommended part: Siemens B82790-S0513 )
L2 = 10H
C1, C2, C3 = 0.68 F
C4 = 22F
C5, C6 = 10nF
50 H
50
Power
Module
Spectrum
Analyzer
Power
Supply
PKF 4918 C with 51H common mode series inductor
PKF 4918B without filter
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