B0503T-2W Datasheet, PDF (3/4 Pages) MORNSUN Science& Technology Ltd. – 2W, Fixed input voltage , isolated unregulated single output

DC/DC Converter
B_(X)T-2W series
Product Characteristic Curve
Tolerance Envelope Graph
+10%
+5%
Rated
Output Vo ltage
Typical _{Load Curve}
+2.5%
-2.5%
-7.5%
50 70
100
Output Current Percentage(%)
( Nominal Input Voltage)
Fig. 1
Efficiency Vs Input Voltage (Full Load)
100
95
90
85
B0505(X)T-2W
80
75
70
65
60
55
50
Input Voltage (V)
Efficiency Vs Input Voltage (Full Load)
100
95
90
85
B2405(X)T-2W
80
75
70
65
60
55
50
Input Voltage (V)
Tem pe ratu re De rating Graph
120
100
80
60
Safe Operating Area
40
20
0
- 40
0
40
85 105 120
Ambi ent Temperature(℃)
Fig. 2
Efficiency Vs Output Load(Vin=5V)
100
90
80
B0505(X)T-2W
70
60
50
40
30
20
10
0
10 20 30 40 50 60 70 80 90 100
Output Current Percentage(%)
Efficiency Vs Output Load(Vin=24V)
100
90
80
B2405(X)T-2W
70
60
50
40
30
20
10
0
10 20 30 40 50 60 70 80 90 100
Output Current Percentage(%)
Design Reference
1. Typical application
If it is required to further reduce input and output ripple, a filter capacitor can be connected to the input and output terminals, see Fig.3.
Moreover, choosing suitable filter capacitor is very important, start-up problems may be caused by too large capacitance. To ensured the
modules running well, the recommended capacitive load values as shown in Table 1.
The simplest device for output voltage regulation, over-voltage and over-current protection is a linear voltage regulator with overheat
protection that is connected to the input or output end in series (see Fig. 4).
Vin
C in
GND
DC DC
Fig.3
+Vo
C out
0V
Vin
REG
REG
+Vo
DC DC
GND
0V
Fig.4
Recommended capacitive load value table (Table 1)
Vin(VDC)
Cin(µF)
Vo (VDC) Cout(µF)
3.3
4.7
3.3
10
5
4.7
5
10
12
2.2
9
2.2
15
1
12
2.2
24
0.47
15
1
--
--
24
0.47
It is not recommended to connect any external capacitor when output power is less than 0.5W.
2014.05.22-B/1
Page 3 of 4
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