B1205XT-1W [MORNSUN]
SINGLE OUTPUT, SMD DC-DC CONVERTER; 单路输出，SMD型DC-DC转换器
| 型号： | B1205XT-1W |
| 厂家： | 
MORNSUN SCIENCE& TECHNOLOGY LTD. |
| 描述： | SINGLE OUTPUT, SMD DC-DC CONVERTER |
| 文件： | 总2页 (文件大小：110K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
B_(X)T-1W Series
1W,FIXED INPUT, ISOLATED & UNREGULATED
SINGLE OUTPUT, SMD DC-DC CONVERTER
multi-country patent protection
FEATURES
SMD Package Style
Industry Standard Pinout
No Heat sink Required
1KVDC Isolation
PRODUCT PROGRAM
Input
Output
Part
Number
Efficiency
(%, Typ.)
UL CE
Voltage (VDC)
Current (mA)
Max
Voltage
(VDC)
Nominal
3.3
Range
3.0-3.6
Min
30
20
30
20
12
9
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
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
3.3
5
303
200
303
200
111
84
73
74
72
77
76
79
78
69
73
73
74
69
70
72
75
76
77
UL
UL
High Power Density
Internal SMD construction
Temperature Range: -40°C to +85°C
No External Component Required
RoHS Compliance
3.3
5
UL，CE
UL，CE
UL，CE
UL，CE
UL，CE
UL，CE
UL，CE
UL，CE
5
4.5-5.5
9
12
15
5
67
7
200
111
84
20
12
9
9
12
10.8-13.2
APPLICATIONS
12
15
3.3
5
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.
67
7
300
200
110
83
30
20
11
8
9
24
21.6-26.4
12
15
24
These products apply to:
67
7
1) Where the voltage of the input power
supply is fixed (voltage variation ≤ ±10%);
2) Where isolation is necessary between
42
4
Note: 1.the B_XT-1W series have no 3,6,7 pin. For example B0505XT-1W.
2. B_XT-1W series : UL-60950-1 pending.
input
and
output
(isolation
voltage
≤1000VDC);
ISOLATION SPECIFICATIONS
3) Where the regulation of the output voltage
and the output ripple noise are not
demanding.
Item
Test Conditions
Min
Typ.
Max
Units
VDC
MΩ
Isolation voltage
Isolation resistance
Tested for 1 minute and 1mA max
Test at 500VDC
1000
1000
Such as: purely digital circuits, ordinary low
frequency analog circuits, and IGBT power
device driving circuits.
OUTPUT SPECIFICATIONS
Item
Test Conditions
Min
0.1
Typ.
Max
1
Units
W
Output power
For Vin change of 1%(3.3V output)
For Vin change of 1%(Others output)
10% to 100% load (3.3V output)
10% to 100% load (5V output)
10% to 100% load (9V output)
10% to 100% load (12V output)
10% to 100% load (15V output)
10% to 100% load (24V output)
±1.5
±1.2
20
Line regulation
MODEL SELECTION
15
12.8
8.3
6.8
6.3
5
B0505(X)T-1W
15
Rated Power
Pac kage Style
Output Voltage
Inp ut Voltage
Product Series
%
10
Load regulation
10
10
10
Output voltage accuracy
Temperature drift
See tolerance envelope graph
100% full load
0.03
100
%/°C
Output ripple &Noise* 20MHz Bandwidth
Full load, nominal input(5/12V)
Full load, nominal input(24V)
50
mVp-p
MORNSUN Science& Technology co.,Ltd.
Address: 2th floor 6th building, Huangzhou Industrial
District, Guangzhou, China
100
Switching frequency
KHz
500
Tel: 86-20-38601850
*Test ripple and noise by “parallel cable” method. See detailed operation instructions at Testing of Power
Fax:86-20-38601272
Converter section, application notes.
Http://www.mornsun-power.com
Note:
1. All specifications measured at TA=25°C, humidity<75%, nominal input voltage and rated output load unless
otherwise specified.
2. See below recommended circuits for more details.
MORNSUN reserves the copyright
Specifications subject to change without notice.
B_(X)T-1W
A/2-2008
Page 1 of 2
COMMON SPECIFICATION
APPLICATION NOTE
Item
Test Conditions
Min
Typ
15
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
1.5mm from case for 10 seconds
260
Free air convection
Package material
Short circuit protection*
MTBF
Epoxy Resin(UL94V-0)
1
s
Recommended testing circuit
3500
K Hours
g
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).
Weight
1.41
*Supply voltage must be discontinued at the end of short circuit duration.
Single Output
TYPICAL CHARACTERISTICS
L
L
+Vo
Vin
Cout
Cin
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.(oC)
RECOMMENDED REFLOW SOLDERING PROFILE
260oC
250
200
150
100
10 Sec Max
220o C
EXTERNAL CAPACITOR TABLE (Table 1)
Vin
Cin
Vout
Cout
(VDC)
(uF)
(VDC)
(uF)
3.3/5
4.7
2.2
0.47
-
3.3/5
9
10
4.7
2.2
1
12
24
-
90 Sec Max
(>220oC)
12
15
50
0
-
-
24
0.47
It’s not recommend to connect any external capacitor in the
application field with less than 0.5 watt output.
Time (sec.)
Output Voltage Regulation and Over-voltage
Protection Circuit
OUTLINE DIMENSIONS & FOOTPRINT DETAILS
First Angle Projection
The simplest device for output voltage
regulation,
over-voltage
and
over-current
RECOMMENDED FOOTPRINT
Top view,grid:2.54*2.54mm(0.1*0.1inch)
(Side view)
protection is a
linear voltage regulator with
overheat protection that is connected to the input
or output end in series (Figure2).
2.54
(0.100)
0.25
(0.100)
B_(X)T-1W
B_T-1W
8 7 6
8
5
5
+Vout
Vin
REG
(0.500)
12.70
2.00
(0.079)
DC DC
7.62
(0.300)
1 2
4
1 2 3 4
GND
0V
REG
+Vout
0V
(0.039)
Vin
(Top view)
DC
DC
GND
FOOTPRINT DETAILS
2.54±0.1
(0.100±0.004)
0.60±0.05
(0.024±0.002)
Pin
Function(T) Function(XT)
（Figure2）
Overload Protection
GND
Vin
0V
+Vo
No Pin
NC
1
2
4
5
GND
Vin
0V
+Vo
NC
6.76
(0.266)
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.
A
3,6,7
8
NC:No Connection
NC
1.85MAX
(0.073)
7.19
(0.283)
0.30
(0.012)
Note:
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)
(0.020)
0.50
1.35MAX
(0.053)
。
5.00
No parallel connection or plug and play.
MORNSUN reserves the copyright
Specifications subject to change without notice.
B_(X)T-1W
A/2-2008
Page 2 of 2
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