B0505T-3W Datasheet, PDF (2/3 Pages) MORNSUN Science& Technology Ltd. – DC/DC Converter

DC/DC Converter
B0505T-3W
Storage Humidity
Switching Frequency
MTBF
Non-condensing
100% load, nominal input voltage
MIL-HDFK-217F@25℃
--
--
3500
--
95
%
100
300
KHz
--
--
K hours
Physical Specifications
Casing Material
Package Dimensions
Weight
Cooling Method
Black flame-retardant heat-proof epoxy resin (UL94-V0)
19.00*10.46*6.60 mm
2.0g(Typ.)
Free air convection
EMC Specifications
EMI
EMS
Conducted disturbance
Electrostatic discharge
CISPR22/EN55022 CLASS B (see Fig. 5 for recommended circuit)
IEC/EN61000-4-2 Contact ±6KV perf. Criteria B
Product Characteristic Curve
Tolerance Envelope Graph
+10%
+5%
Rated
Output Voltage
Typical _{Load Curve}
+2.5%
-2.5%
-7.5%
Temperature Derating Graph
Safe Operating Area
50 70
100
Output Current Percentage(%)
(Nominal Input Voltage)
Fig. 1
Efficiency Vs Input Voltage (Full Load)
100
95
90
85
80
B0505T-3W
75
70
65
60
55
50
Input Voltage (V)
Ambient Temp.(℃)
Fig. 2
Efficiency Vs Output Load(Vin=Vin-nominal)
100
90
80
B0505T-3W
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
+Vo
C out
0V
Vin
REG
REG
+Vo
DC DC
GND
0V
Fig.3
Fig.4
Recommended capacitive load value table (Table 1)
Vin(VDC)
Cin(μF)
Vo (VDC)
Cout(μF)
5
4.7
5
10
It is not recommended to connect any external capacitor when output power is less than 0.5W.
2014.05.22-A/1
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