URA2405YMD-10WR3_15 Datasheet, PDF (4/6 Pages) MORNSUN Science& Technology Ltd. – DC/DC Converter

DC/DC Converter
URA_YMD-10WR3 & URB_YMD-10WR3 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 Output
Vin
Cin
GND
DC DC
+Vo
Cout
0V
Cout
-Vo
Single Output
Vin
+Vo
Cin
GND
DC DC
Cout
0V
Fig. 2
2. EMC solution-recommended circuit
Vin
Cin1
Cout
24V
100µF
48V
10µF ~47µF
10µF
V in
GND
F US E
MOV
+
C0
①
LDM1
C1
②
CY1
Vin
+Vo
DC /D C
GND
CY2
-Vo
(0 V)
LO A D
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
Vin:24V
Vin:48V
FUSE
Choose according to actual input current
MOV
S14K35
S14K60
C0
330µF/50V
330µF/100V
C1
1µF/50V
1µF/100V
C2
Refer to the Cout in Fig.2
LDM1
4.7µH
CY1/CY2
1nF/2KV
Fig. 4
Note: the min. distance of the bonding pads between input & output isolation capacitors (CY1/CY2) shall be ≥ 2mm.
3. It is not allowed to connect modules output in parallel to enlarge the power
4. For more information please find DC-DC converter application notes on www.mornsun-power.com
2015.09.28-A/3
Page 4 of 6
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