URA2405YMD-6WR3_15 Datasheet, PDF (4/6 Pages) MORNSUN Science& Technology Ltd. – DC/DC Power Supply Module

DC/DC Power Supply Module
URA_YMD-6WR3 & URB_YMD-6WR3 Series
Design Reference
1. Typical application
All the DC/DC converters of this series are tested according to the recommended circuit (see Fig. 2) before delivery.
If it is required to further reduce input and output ripple, properly increase the input & output of additional capacitors Cin and Cout or
select capacitors of low equivalent impedance provided that the capacitance is no larger than the max. capacitive load of the product.
Dual
Vin
Cin
GND
Single
Vin
Cin
GND
Cout
DC DC
Cout
DC DC Cout
Fig. 2
+Vo
0V
-Vo
+Vo
0V
2. EMC solution-recommended circuit
Vin(VDC)
24
48
Cin(uF)
100
10~47
Cout(uF)
10
10
V in
GND
FUSE
MOV
+
C0
①
LDM1
C1
②
C Y1
Vin
+Vo
DC/DC
GND
0V
C Y2
LOAD
C2
Fig. 3
Notes: Part ① in the Fig. 3 is used for EMS test and part ② for EMI filtering;
selected based on needs.
EMC solution-recommended circuit PCB layout
Parameter description
Model
FUSE
MOV
C0
C1
C2
LDM1
CY1/CY2
Vin:24V
Vin:48V
Choose according to actual input current
S14K35
S14K60
330µF/50V
330µF/100V
1µF/50V
1µF/100V
Refer to the Cout in Fig.2
4.7µH
1nF/2KV
Fig. 4
Note: the min. distance of the bonding pads between input & output isolation capacitors (CY1/CY2) shall be ≥ 2mm.
2015.09.28-A/3
Page 4 of 6
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