ELECTRONIC COMPONENTS
RSG
■
RSG Electronic Components GmbH Sprendlinger Landstr. 115 D-63069 Offenbach/Germany
Tel. +49 69 984047-0 Fax +49 69 984047-77 info@rsg-electronic.de
www.rsg-electronic.de
■
■
■
■
■
Änderungen vorbehalten / subject to change without notice
B_(X)T-1W
Series
1W,FIXED INPUT,
ISOLATED & UNREGULATED
single OUTPUT, SMD DC-DC CONVERTER
multi-country patent protection
RoHS
PRODUCT PROGRAM
FEATURES
Single Voltage Output
SMD Package Style
Industry Standard Pinout
No Heatsink Required
1KVDC Isolation
High Power Density
Temperature Range: -40
°C
~+85
°C
No External Component Required
RoHS
Compliance
Part
Number
B0303(X)T-1W
B0305(X)T-1W
B0503(X)T-1W
B0505(X)T-1W
B0509(X)T-1W
B0512(X)T-1W
B0515(X)T-1W
5
4.5-5.5
Nominal
3.3
Input
Voltage (VDC)
Range
3.0-3.6
Voltage
(VDC)
3.3
5
3.3
5
9
12
15
5
12
10.8-13.2
9
12
15
3.3
5
24
21.6-26.4
9
12
15
Output
Current (mA)
Max
303
200
303
200
111
84
67
200
111
84
67
300
200
110
83
67
Min
30
20
30
20
12
9
7
20
12
9
7
30
20
11
8
7
4
73
74
72
77
76
79
78
69
73
73
74
69
70
72
75
76
77
Efficiency
(%, Typ.)
UL CE
UL，
CE
UL，
CE
UL，
CE
UL，
CE
UL，
CE
UL，
CE
UL，
CE
UL，
CE
APPLICATIONS
The B_(X)T-1W Series are specially
designed for applications where a group of
polar power supplies are isolated from the
input power supply in a distributed power
supply system on a circuit board.
These products apply to:
1) Where the voltage of the input power
supply is fixed (voltage variation
≤
±10%);
2) Where isolation is necessary between
input and output (isolation voltage
≤1000VDC);
3) Where the regulation of the output voltage
and the output ripple noise are not
demanding.
Such as: purely digital circuits, ordinary low
frequency analog circuits, and IGBT power
device driving circuits.
B1205(X)T-1W
B1209(X)T-1W
B1212(X)T-1W
B1215(X)T-1W
B2403(X)T-1W
B2405(X)T-1W
B2409(X)T-1W
B2412(X)T-1W
B2415(X)T-1W
B2424(X)T-1W
24
42
Note :
1.the B_XT-1W series have no 3,6,7 pin. For example B0505XT-1W.
2. B_XT-1W :UL-60950-1 pending.
MODEL SELECTION
B0505(X )T-1W
Ra ted Po wer
P acka ge Styl e
Ou tpu t Vol tag e
In pu t Vol tag e
P ro du ct Se ri es
OUTPUT SPECIFICATIONS
Item
Output power
Line regulation
For Vin change of 1%(3.3V
t t)
For Vin change of 1%(Others)
10% to 100% load (3.3V output)
10% to 100% load (5V output)
Load regulation
10% to 100% load (9V output)
10% to 100% load (12V output)
10% to 100% load (15V output)
Output voltage accuracy
Temperature drift
Output ripple &Noise*
Switching frequency
100% full load
20MHz Bandwidth
Full load, nominal input(5/12V)
Full load, nominal input(24V)
50
100
500
15
12.8
8.3
6.8
6.3
Test Conditions
Min
Typ.
Max
1
±1.5
±1.2
20
15
15
15
15
0.03
75
%/°C
mVp-p
KHz
%
Units
W
%
See tolerance envelope graph
*test ripple and noise by “parallel cable” method. See detailed operation instructions at Testing of Power
Converter section, application notes.
Note:
1.All specifications measured at T
A
=25°C, humidity<75%, nominal input voltage and rated output load
unless otherwise specified.
2.See below recommended circuits for more details.
Specifications subject to change without notice.
B_(X)T-1W
A/0-2007
Page 1 of 2
ELECTRONIC COMPONENTS
RSG
■
RSG Electronic Components GmbH Sprendlinger Landstr. 115 D-63069 Offenbach/Germany
Tel. +49 69 984047-0 Fax +49 69 984047-77 info@rsg-electronic.de
www.rsg-electronic.de
■
■
■
■
■
Änderungen vorbehalten / subject to change without notice
COMMON SPECIFICATION
Item
Test Conditions
Storage humidity
Operating temperature
Storage temperature
Temp. rise at full load
Lead temperature
1.5mm from case for 10 seconds
Cooling
Isolation voltage
Tested for 1 minute and 1mA max
Isolation resistance
Test at 500VDC
Short circuit protection
Case material
MTBF
Weigh
Min
-40
-55
Max
Units
95
%
85
125
°C
15
25
260
Free air convection
VDC
MΩ
1 second(Max)
Plastic(UL94-V0)
K Hours
1.41
g
Typ
APPLICATION NOTE
Requirement on output load
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.
Recommended testing circuit
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).
Single Output
Vin
L
Cin
L
1000
1000
3500
+Vo
Cout
TYPICAL CHARACTERISTICS
DC DC
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.(
o
C)
RECOMMENDED REFLOW SOLDERING PROFILE
250
Te mp eratur e (
o
C)
26 0
o
C
1 0 S ec M ax
200
150
100
50
0
2 2 0
o
C
90 Sec Max
( >220
o
C )
EXTERNAL CAPACITOR TABLE (Table 1)
Vin
Cin
Vout
Cout
(VDC)
(uF)
(VDC)
(uF)
3.3
3.3
4.7
10
/5
5
4.7
10
12
2.2
9
4.7
24
0.47
12
2.2
-
-
15
1
-
-
24
0.47
It’s not recommend to connect any external capacitor
in the application field with less than 0.5 watt output.
Time ( s ec .)
OUTLINE DIMENSIONS & FOOTPRINT DETAILS
4.13
(0.163)
Output Voltage Regulation and Over-voltage
Protection Circuit
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).
Vin
REG
+Vout
6.25
(0.246)
6.00
(0.236)
(Side view)
2.54
0.25
(0.100) (0.100)
First Angle Projection
DC DC
GND
0V
REG
REC OM MENDED FO OTPRIN T
Top
view,grid:2.54mm(0.1inch)
6.76
(0.266)
A
1.85MAX
(0.073)
7.19
(0.283)
0.3
(0.012)
Vin
GND
+Vout
12.70 (0.500)
7.62
(0.300)
11.2 MAX
(0.441)
7.50
(0.295)
DC DC
0V
(Top view)
B_T-1W
0.60
±
0.05
(0.024
±
0.002)
B_(X)T-1W
8
1 2
5
4
（Figure2）
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.
No parallel connection or plug and play.
2.54
±
0.1
(0.100
±
0.004)
8 7 6 5
1 2 3 4
0.50 (0.020)
FOO TPRINT DETAILS
1.35MAX
(0.053)
5.00
。
N ote:
U nit:mm (inch)
P in section:0.60*0.25mm(0.024*0.010inch)
P in tolerances:
+
0.10mm(
+
0.004inch)
G eneral tolerances:
+
0.15mm (
+
0.006inch)
S ingle
Pin
1
GND
2
Vin
0V
4
+V0
5
NC
3,6,7
NC
8
NC:No Connection
D uals
GND
Vin
0V
+Vo
NO Pin
NC
Specifications subject to change without notice.
B_(X)T-1W
A/0-2007
Page 2 of 2
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