B0512RN-1W Datasheet, PDF (2/4 Pages) MORNSUN Science& Technology Ltd. – DC/DC Converter

DC/DC Converter
B_RN-1W & B_RT-1W Series
Operating Temperature
Storage Temperature
Casing Temperature Rise
Pin Welding Resistance Temperature
Derating if the temperature ≥85°C,
(see Fig. 2)
Ta=25°C
Welding spot is 1.5mm away from the casing,
10 seconds
Reflow Soldering Temperature
Storage Humidity
Switching Frequency
MTBF
Non-condensing
100% load, nominal input voltage
MIL-HDFK-217F@25°C
-40
--
85
-55
--
125
°C
--
15
25
--
--
300
Peak temp.≤245℃, maximum duration time≤60s
at 217℃. For actual application, please refer to
IPC/JEDEC J-STD-020D.1.
--
--
95
%
--
100
--
KHz
3500
--
--
K hours
Physical Specifications
Casing Material
Package Dimensions
Weight
Cooling Method
Black flame-retardant heat-proof epoxy resin (UL94-V0)
B_RN-1WR2
B_RT-1WR2
19.50*9.50*4.68mm
19.50*10.53*5.00mm
1.4g (Typ.)
Free air convection
Product Characteristic Curve
Tolerance Envelope Graph
+10%
+5%
Rated
Output Voltage
Typical _{Load Curve}
+2.5%
-2.5%
-7.5%
50 70
100
Output Current Percentage(%)
(Nominal Input Voltage)
Fig. 1
Temperatu re Derating Graph
120
1 00
80
60
Safe Operati ng Area
40
20
0
- 40
0
40
85 105 120
Ambi ent Temperature(℃)
Fig. 2
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).
L
Vin
L
+Vo
Cin
GND
DC DC
Cout
0V
Fig.3
Vin
REG
REG
+Vo
DC DC
GND
0V
Fig.4
Recommended capacitive load value table (Table 1)
Vin
Cin
Vout
Cout
(VDC)
(μF)
(VDC)
(μF)
5
4.7
5
10
12
2.2
12
2.2
--
--
15
1
It is not recommended to connect any external capacitor when output power is less than 0.5W.
2. Output load requirements
To ensure the module work efficiently and reliably, during the operation, the min. output load should be no less than 10% of the full load. If
the actual output power is low, please connect a resister to the output terminal in parallel, with a recommenced resistance which is 10% of
the rated power, and derating is required during operation.
3. For more information Please find the application notes on www.mornsun-power.com
2014.05.22-C/0
Page 2 of 4
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