A1209XS-W25 [MICRODC]
0.25W, FIXED INPUT, ISOLATED&UNREGULATED DUAL/SINGLE OUTPUT DC-DC CONVERTER; 0.25W ，定电压输入，隔离稳压正负双路/单路输出DC -DC转换器
| 型号： | A1209XS-W25 |
| 厂家： | 
MICRODC POWER TECHNOLOGY CO., LTD |
| 描述： | 0.25W, FIXED INPUT, ISOLATED&UNREGULATED DUAL/SINGLE OUTPUT DC-DC CONVERTER |
| 文件： | 总2页 (文件大小：670K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
A-XS-W25&B-XLS-W25 Series
0.25W, FIXED INPUT, ISOLATED&UNREGULATED DUAL/SINGLE OUTPUT DC-DC CONVERTER
PRODUCT PROGRAM
Input
Output
Current (mA)
Part
Efficiency
(%, Typ)
Voltage (VDC)
Voltage
(VDC)
Number
Nominal
Nominal
Max
75.8
50
B0303XLS-W25
B0305XLS-W25
A0505XS- W25
A0509XS- W25
A0512XS- W25
A0515XS- W25
B0505XLS- W25
B0509XLS- W25
B0512 XLS- W25
B0515X LS- W25
A1205XS- W25
A1209XS- W25
A1212XS- W25
A1215XS- W25
B1203X LS- W25
B1205 XLS- W25
B1209 XLS- W25
B1212X LS- W25
B1215X LS- W25
A2405XS- W25
A2409XS- W25
A2412XS- W25
A2415XS- W25
B2405 XLS- W25
B2409X LS- W25
B2412 XLS- W25
B2415 XLS- W25
B2424XLS- W25
3.3
5
62
65
62
64
66
65
64
65
67
65
62
63
64
65
62
65
66
67
66
63
64
65
65
63
63
65
65
64
3.3
3.0-3.6
FEATURES
◆Small Footprint
±5
±9
±12
±15
5
±25
±13.8
±10.4
±8.3
50
◆1KVDC Isolation
◆SIP Package
5
4.5-5.5
◆Internal SMD Construction
◆Temperature Range: -40℃to +85℃
◆No Heat sink Required
◆No External Component Required
◆Industry Standard Pinout
9
27.8
20.8
16.7
±25
±13.8
±10.4
±8.3
75.8
50
12
15
±5
±9
±12
±15
3.3
5
MODEL SELECTION
⑥
12
10.8-13.2
①
②
③
④
⑤
B 05 05 X LS -W25
9
27.8
20.8
16.7
±25
±13.8
±10.4
±8.3
50
①Product Series
③Output Voltage
⑤Lenthened SIP Pacage Style ⑥Rated Power
②Input Voltage
④Fixed Input
12
15
±5
±9
±12
±15
5
APPLICATIONS
The A-XS-W25&B-XLS-W25 Series are specially
designed for applications where a group of polar
power supplies are isolated from the input power
24
21.6-26.4
9
27.8
20.8
16.7
10.4
12
supply in
a
distributed power supply system on
15
a circuit board.
24
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);
COMMON SPECIFICATIONS
Item
Test conditions
Min
Typ
Max
Units
%
Storage humidity
Operating Temperature
Storage Temperature
Temp. rise at full load
Lead temperature
Short circuit protection*
Cooling
95
85
-40
-55
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.
125
25
℃
15
1.5mm from case for 10 seconds
300
1
s
Free air convection
Plastic (UL94-V0)
Case material
MTBF
3500
K hours
g
Weight
2.1
MICRODC reserves the copyright
*Supply voltage must be discontinued at the end of short circuit duration.
http://www.microdc.cn
Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646
Page 1 of 2
A-XS-W25&B-XLS-W25 Series
ISOLATION SPECIFICATIONS
APPLICATION NOTE
Requirement on output load
Item
Test conditions
Tested for 1 minute and 1 mA max
Test at 500VDC
Min
Typ
Typ
Max
Units
VDC
M
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.
Isolation voltage
Isolation resistance
1000
1000
OUTPUT SPECIFICATIONS
Item
Test conditions
Min
Max
0.25
±1.5
±1.2
20
Units
W
Output power
(3.3V input)
(Others input)
(3.3V output)
(5V output)
(9V output)
(12V output)
(15V output)
For Vin change
Line regulation
Load regulation
of ±1%
Overload Protection
Under
normal
operating
conditions,
the
12
10.5
8.3
6.8
6.3
output circuit of these products has no protection
against overload. The simplest method is to
connect a self-recovery fuse in series at the input
end or add a circuit breaker to the circuit.
%
15
10% to 100%
load
15
15
15
Recommended circuit
Output voltage accuracy
Temperature drift
Ripple & Noise*
See tolerance envelope graph
0.03
If
you want
to
further
decrease
the
100% full load
%/℃
mVp-p
KHz
input/output ripple, an "LC" filtering network may be
connected to the input and output ends of
the DC/DC converter, see (Figure 1).
20MHz Bandwidth
50
75
Switching frequency
Full load, nominal input
100
*Test ripple and noise by "parallel cable" method. See detailed operation instructions at Testing .
Note:
1. All specifications measured at T A =25℃, humidity<75%, nominal input voltage and rated output load unless otherwise
specified.
2. See below recommended circuits for more details.
3. Dual output models unbalanced load: ±5%.
TYPICAL CHARACTERISTICS
It should
also
be noted
frequency
that
the
inductance
and the
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.
It's not recommended to connect any external
capacitor in the application field.
OUTLINE DIMENSIONS & PIN CONNECTIONS
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 (Figure 2).
No parallel connection or plug and play.
http://www.microdc.cn
Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646
Page 2 of 2
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