WRB2412YD-2W [MICRODC]
2W, WIDE INPUT, ISOLATED & REGULATED DUAL/SINGLE OUTPUT DC-DC CONVERTER; 2W ，宽电压输入，隔离稳压正负双路/单路输出DC -DC转换器
| 型号： | WRB2412YD-2W |
| 厂家： | 
MICRODC POWER TECHNOLOGY CO., LTD |
| 描述： | 2W, WIDE INPUT, ISOLATED & REGULATED DUAL/SINGLE OUTPUT DC-DC CONVERTER |
| 文件： | 总3页 (文件大小：484K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
WRA-YD-2W&WRB-YD-2W Series
2W, WIDE INPUT, ISOLATED & REGULATED DUAL/SINGLE OUTPUT DC-DC CONVERTER
SELECTION GUIDE
Input
Voltage(VDC)
Range
Output
Current(mA)
Efficiency
(%,Typ)
Order code
Voltage
(VDC)
Nominal
12
Max.*
22
Max.
Min.
WRA1205YD-2W
WRA1212YD-2W
WRA1215YD-2W
WRB1203YD-2W
WRB1205YD-2W
WRB1209YD-2W
WRB1212YD-2W
WRB1215YD-2W
WRA2405YD-2W
WRA2412YD-2W
WRA2415YD-2W
WRB2403YD-2W
WRB2405YD-2W
WRB2409YD-2W
WRB2412YD-2W
WRB2415YD-2W
9-18
9-18
±5
±12
±15
3.3
5
±200
±20
75
78
78
70
74
76
78
78
76
78
79
72
76
78
80
79
12
12
12
12
12
12
12
24
24
24
24
24
24
24
24
22
22
22
22
22
22
22
40
40
40
40
40
40
40
40
±83
±67
455
±8
±7
45
FEATURES
◆Miniature DIP package
9-18
9-18
9-18
400
40
◆2:1 wide input voltage range
◆Operating temperature: -40℃to +85℃
◆1500VDC isolation
9-18
9
222
22
9-18
12
167
16
9-18
15
133
13
◆No heat sink required
18-36
18-36
18-36
18-36
18-36
18-36
18-36
18-36
±5
±12
±15
3.3
5
±200
±83
±67
455
±20
±8
±7
45
◆No external component required
◆Industry standard pinout
◆Internal SMD construction
◆Short circuit protection(automatic recovery)
◆RoHS Compliance
400
40
9
222
22
12
167
16
15
133
13
*Input voltage can ' t exceed this value, or will cause the permanent damage.
MODEL SELECTION
⑥
①
②
③
④
⑤
WRB 24 05 Y D -2W
①Product Series
③Output Voltage
⑤DIP package style
②Input Voltage
④Wide (2:1) Input Range
⑥Rated Power
OUTPUT SPECIFICATIONS
Parameter
Storage humidity
Test conditions
Min.
Typ.
Max.
Units
95
85
%
℃
℃
℃
℃
W
Operating temperature
Storage temperature
Temp. rise at full load
Lead temperature
No-load power consumption
Cooling
-40
-55
125
APPLICATIONS
15
1.5mm from case for 10 seconds
300
The
WRA_YD-2W&WRB_YD-2W
series
are
0.2
specially designed for applications where
a
wide
Free air convection
range input voltage 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 wide
range (voltage range≤2:1);
Short circuit protection
Case material
Continuous, automatic recovery
Plastic(UL94-V0)
MTBF
1000
K hours
Weight
4.8
g
2) Where isolation is necessary between input and
output(isolation voltage≤1500VDC);
3) Where the regulation of the output voltage and the
output ripple noise are demanded.
ISOLATION SPECIFICATIONS
Parameter
Isolation voltage
Test conditions
Min.
Typ.
85
Max.
Units
Tested for 1 minute and 1 mA max
Test at 500VDC
1500
1000
VDC
MΩ
pF
Isolation resistance
Isolation Capacitance
Input/Output, 100KHz/1V
MICRODC reserves the copyright
http://www.microdc.cn Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646
Page 1 of 3
WRA-YD-2W&WRB-YD-2W Series
TYPICAL CHARECTERISTICS
COMMON SPECIFICATIONS
Parameter
Output power
Test conditions
Min.
0.2
Typ.
Max
Units
See above products program
Refer to recommended circuit
Refer to recommended circuit
From 10% to 100% load
2
W
%
Positive voltage accuracy
Negative voltage accuracy
Load regulation
±1
±3
±3
±5
%
±0.5
±0.2
±1*
±0.5
±0.03
100
%
Line regulation
Input voltage from low to high
Refer to recommended circuit
20MHz Bandwidth
%
Temperature drift
%/℃
mVp-p
KHz
Ripple & Noise**
50
Switching frequency
100% load, input voltage range
300
*Dual output models unbalanced load: ±5%.
**Test ripple and noise by “parallel cable”method. See detailed operation instructions at Testing of Power
Converter section, application notes.
RECOMMENDED CIRCUIT
APPLICATION NOTE
1) Requirement on output load
In order to ensure the product operate efficiently and reliably, in addition to a max load (namely full
load), a minimum load is specified for this kind of DC/DC converter. Make sure the specified range of input
voltage is not exceeded, the minimum output load no less than 10% load. If the actual load is less than the
specified minimum load, the output ripple may increase sharply while its efficiency and reliability will
reduce greatly. If the actual output power is very small, please add an appropriate resistor as extra
loading, or contact our company for other lower output power products.
2) Recommended Circuit
All the WRA_YD-2W
& WRB_YD-2W series have been tested according to the following
recommended testing circuit before leaving factory (Figure 1). This series should be tested under load.
If you want to further decrease the input/output ripple, you can increase capacitance properly or choose
capacitors with low ESR. 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).General:
Cin:
12V
24V
100µF
10µF~47µF
Cout: 10µF/100mA
3) Input Current
When it is used in unregulated power supply, be sure that the fluctuating range of the power supply and
the rippled voltage do not exceed the module standard. Input current of power supply should afford the
startup current of this kind of DC/DC module (Figure 2)
General: Ip ≤1.4*Iin-max:
4) No parallel connection or plug and play
http://www.microdc.cn Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646
Page 2 of 3
WRA-YD-2W&WRB-YD-2W Series
OUTLINE DIMENSIONS ＆ FOOTPRINT DETAILS
MECHANICAL DIMENSIONS
RECOMMENDED FOOTPRINT(TOP VIEW)
TUBE OUTLINE DIMENSIONS
Note:
1. The load shouldn't be less than 10%, otherwise ripple will increase dramatically.
2. Operation under 10% load will not damage the converter; However, they may not meet all specification listed.
3. All specifications measured at Ta=25℃, humidity<75%, nominal input voltage and rated output load unless otherwise specified.
4. In this datasheet, all the test methods of indications are based on corporate standards.
5. Only typical models listed, other models may be different, please contact our technical person for more details.
RoHS COMPLIANT INFORMATION
This series is compatible with RoHS soldering systems with a peak wave solder temperature of 300°C
for 10 seconds. The pin termination finish on the SIP package type is Tin Plate, Hot Dipped over Matte
Tin with Nickel Preplate. The DIP types are Matte Tin over Nickel Preplate. Both types in this series are
backward compatible with Sn/Pb soldering systems.
Microdc Professional Power Module,Inc.
Tel:0086-20-86000646 E-mail:tech@microdc.cn
Website:http://www.microdc.cn
Microdc Professional Power module,Inc.makes no representation that
the use of its products in the circuits described herein, or the use of other
technical information contained herein, will not infringe upon existing or
future patent rights. Specifications are subject to change without notice.
©2010 Microdc Professional Power Module, Inc. Guangzhou
REACH COMPLIANT INFORMATION
This series has proven that this product does not contain harmful chemicals, it also has harmful chemical
substances through the registration, inspection and approval.
http://www.microdc.cn Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646
Page 3 of 3
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