URF2405LP-20W Datasheet, PDF (3/6 Pages) MORNSUN Science& Technology Ltd. – REGULATED SINGLE OUTPUT DC-DC CONVERTER

EMC RECOMMENDED CIRCUIT
V in
GND
FUSE
MOV
LDM1
TV S
+
C0
CY2
LDM2
C1
①
② CY1
Vi n
+Vo
EUT LOAD
GND
-Vo
(0V)
(Figure1)
Note: In Figure 1,part①is EMS recommended external circuit, part② is EMI
recommended external circuit. Choose according to requirements.
Recommended external circuit parameters:
Model
Vin:24V
Vin:48V
FUSE
Choose according to actual input current
MOV
LDM1
S14K35
56μH
S14K60
TVS
SMCJ48A
C0
330μF/50V
SMCJ90A
330μF/100V
C1
1μF /50V
1μF /100V
LDM2
4.7μH
CY1,CY2
1nF/5KV
EMC RECOMMENDED CIRCUIT PCB LAYOUT
(Figure 2)
Note: The pad space between input and output (CY1/CY2) must≥2mm.
EMI TEST WAVEFORM(RECOMMENDED CIRCUIT 1-②)
URF2405LP-20W CE (Class B, Positive line)
URF2405LP-20W CE (Class B, Negative line)
URF4815LP-20W CE (Class B, Positive line)
URF4815LP-20W CE (Class B, Negative line)
URF2405LP-20W RE(Class B, Horizontal)
URF2405LP-20W RE(Class B, Vertical)
URF4815LP-20W RE(Class B, Horizontal)
URF4815LP-20W RE(Class B, Vertical)
The copyright and authority for the interpretation of the products are reserved by MORNSUN
URF_LP-20W
2013.05.24-A/1
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