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參數資料
| 型號： | PKD4218SIOA |
| 廠商： | ERICSSON POWER MODULES AB |
| 元件分類： | 電源模塊 |
| 英文描述： | 1-OUTPUT 21 W DC-DC REG PWR SUPPLY MODULE |
| 文件頁數： | 8/20頁 |
| 文件大?。?/td> | 338K |
| 代理商： | PKD4218SIOA |
16
EN/LZT 146 120 R2B Ericsson Power Modules AB, March 2003
EMC Specifications
The conducted EMI measurement was performed using a mod-
ule placed directly on the test bench.
The fundamental switching frequency is 200kHz ±5% for
PKD 4210 SI @ VI = 53V, IO = (0.1...1.0) × IOmax.
Radiated susceptibility (EMS)
(Electro-MagneticFields)
Radiated EMS is measured according to test methods in
EN/IEC Standard 61000-4-3. No deviation outside the VO
tolerance band will occur under the following conditions:
Frequency rangeVoltage level
30...990 MHz 10V /m
ESD
Electro Static Discharge is tested according to
EN 61000-4-2.
No destruction will occur if the following voltage levels are ap-
plied to any of the terminal pins:
Direct discharge of max 8kV.
EFT
According to EN 61000-4-4.
Test signal: 1-2-3-4kV
The module will work properly after the transients.
A voltage dip up to 250mV may occur during transients.
Output ripple & noise (VOac)
Output ripple is measured as the peak to peak voltage of the
fundamental switching frequency
Operating information
Maximum capacitive load
The PKD series of converters has no limitation of maximum
connected capacitance on the output. Capacitance on the output
will affect the ramp-up and the start-up time.
Parallel operation
For safe parallel operation a low voltage drop diode must be
connected in series with each output.
Series operation
If sense pins are directly connected to output on each mo-dule
it is possible to connect modules in series.
External filter (class B)
Required external input lter in order to meet class B in
EN 55022, CISPR 22 and FCC part 15J.
The capacitors are ceramic type. Low ESR is critical for
achieveing these results.
Test set-up.
PKD 4210 with filter.
DC
Power
Source
+
-
5H 50
5H 50
LISN
in
out
rcvr
50 ohm input
1 m Twisted Pair
50 ohm temination
Optional Connection
to Earth Ground
Filter
(if used)
Power Module
Resistive
Load
Printed Circuit Board
EMC
Reciver
Computer
C1,2,3: 0.68uF
C4: 47uF
C5,C6: 3.9nF
L1: Pulse common mode inductor PO473 on 884 uH
L2: DC choke: 5.6uH
Case connected to plus input
Conducted EMI Input terminal value (typ)
PKD 4210 without filter.
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