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参数资料
| 型号： | PKM2513EPI |
| 厂商： | ERICSSON POWER MODULES AB |
| 元件分类： | 电源模块 |
| 英文描述： | 1-OUTPUT 50 W DC-DC REG PWR SUPPLY MODULE |
| 封装： | ROHS COMPLIANT, PACKAGE-8 |
| 文件页数： | 13/25页 |
| 文件大小： | 1408K |
| 代理商： | PKM2513EPI |
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EN/LZT 146 050 R4A Ericsson Power Modules, March 2007
PKM 2000E PI Datasheet
EMC Specification
The conducted EMI measurement was performed using a
module placed directly on the test bench .
The fundamental switching frequency is 180 kHz for
PKM2510E PI @ VI = 27V, IO = (0 .1 . . .1 .0) x IOmax .
External filter (class B)
Required external input filter in order to meet class B in
EN 55022, CISPR 22 and FCC part 15J .
Test set-up.
Layout Recommendation
The radiated EMI performance of the DC/DC converter
will be optimised by including a ground plane in the PCB
area under the DC/DC converter. This approach will re-
turn switching noise to ground as directly as possible, with
improvements to both emissions and susceptibility. It is also
important to consider the stand-off of the PKM 2000E series
DC/DC converter. If one ground trace is used, it should be
connected to the input return . Alternatively, two ground
traces may be used, with the trace under the input side of
the DC/DC converter connected to the input return and the
trace under the output side of the DC/DC converter con-
nected to the output return . Make sure to use appropriate
safety isolation spacing between these two return traces .
The use of two traces as described will provide the capabil-
ity of routing the input noise and output noise back to their
respective returns .
Conducted EMI Input terminal value (typ)
Output ripple and noise test setup
Output ripple and noise
The circuit below has been used for the ripple and noise
measurements on the PKM 2000E Series DC/DC converters .
PKM 2510 E PI without filter
PKM 2510 E PI with filter
0.68uF
3.9nF
768uH
PO422(Pulse)
0.68uF
3.9nF
47uH
220uF
+
-
DC/DC
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
BNC
Connector
to Scope
Ceramic
Capacitor
+Vout
+Sense
Trim
-Sense
-Vout
Load
Tantalum
Capacitor
* Conductor from Vout to capacitors = 50mm [1.97in]
+
0.1uF
10uF
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