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RSG Electronic Components GmbH Sprendlinger Landstr. 115 D-63069 Offenbach/Germany
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RSG
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Tel. +49 69 984047-0 Fax +49 69 984047-77 info@rsg-electronic.de www.rsg-electronic.de
ELECTRONIC COMPONENTS
Änderungen vorbehalten / subject to change without notice
APPLICATION NOTE
COMMON SPECIFICATION
Item
Test Conditions
Min
Typ
Max
95
Units
%
Requirement on output load
Storage humidity
Operating temperature
Storage temperature
Temp. rise at full load
Lead temperature
Cooling
To ensure this module can operate efficiently and
reliably, During operation, the minimum output load
is not less than 10% of the full load, and that this
product should never be operated under no
load! If the actual output power is very small,
please connect a resistor with proper resistance at
the output end in parallel to increase the load.
-40
-55
85
125
25
°C
15
1.5mm from case for 10 seconds
260
Free air convection
Isolation voltage
Isolation resistance
Short circuit protection
Case material
MTBF
Tested for 1 minute and 1mA max 1000
VDC
Recommended testing circuit
Test at 500VDC
1000
MΩ
If you want to further decrease the input/output
ripple, an “LC” filtering network may be connected
to the input and output ends of the DC/DC
converter, see (Figure 1).
1 second(Max)
Plastic(UL94-V0)
3500
K Hours
g
Weigh
1.41
Single Output
L
L
+Vo
Vin
Cout
Cin
DC
DC
TYPICAL CHARACTERISTICS
GND
0V
(Figure 1)
It should also be noted that the inductance and the
frequency of the “LC” filtering network should be
staggered with the DC/DC frequency to avoid
mutual interference. However, the capacitance of
the output filter capacitor must be proper. If the
capacitance is too big, a startup problem might
arise. For every channel of output, provided the
safe and reliable operation is ensured, the greatest
capacitance of its filter capacitor sees (Table 1).
Operating Temp.(oC)
EXTERNAL CAPACITOR TABLE (Table 1)
Vin
(VDC)
3.3
5
Cin
(uF)
Vout
(VDC)
3.3
Cout
(uF)
10
10
RECOMMENDED REFLOW SOLDERING PROFILE
4.7
4.7
2.2
0.47
-
260oC
/
250
200
150
100
5
10 Sec Max
220o C
12
24
-
9
4.7
2.2
1
12
15
24
-
-
0.47
90 Sec Max
(>220oC)
It’s not recommend to connect any external capacitor
in the application field with less than 0.5 watt output.
Output Voltage Regulation and Over-voltage
Protection Circuit
50
0
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
(Figure2).
Time (sec.)
OUTLINE DIMENSIONS & FOOTPRINT DETAILS
+Vout
Vin
REG
First Angle Projection
DC DC
(Side view)
GND
RECOMMENDED FOOTPRINT
Top view,grid:2.54mm(0.1inch)
0V
2.54
0.25
(0.100)
(0.100)
6.76
+Vout
REG
(0.266)
Vin
(0.500)
7.62
(0.300)
12.70
DC DC
A
GND
0V
1.85MAX
(0.073)
7.19
(0.283)
0.3
(0.012)
（Figure2）
(Top view)
B_T-1W
B_(X)T-1W
2.54
(0.100
±
0.1
0.004)
0.60
(0.024
±
±
0.05
0.002)
8
1
7
2
6
3
8
1
5
4
5
4
Overload Protection
±
Under normal operating conditions, the output
circuit of these products has no protection against
over-current and short-circuits. The simplest
method is to connect a self-recovery fuse in series
at the input end or add a circuit breaker to the
circuit.
2
(0.020)
0.50
FOOTPRINT DETAILS
1.35MAX
(0.053)
Single
Duals
Pin
1
2
4
5
。
5.00
GND
Vin
0V
+V0
NC
GND
Vin
0V
No parallel connection or plug and play.
Note:
+Vo
NO Pin
NC
Unit:mm(inch)
Pin section:0.60*0.25mm(0.024*0.010inch)
Pin tolerances: 0.10mm( 0.004inch)
General tolerances: 0.15mm( 0.006inch)
3,6,7
8
NC
+
+
NC:No Connection
+
+
Specifications subject to change without notice.
B_(X)T-1W
A/0-2007
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