WRB4812YMD-3W [MICRODC]
3W, WIDE INPUT, ISOLATED & REGULATED SINGLE OUTPUT DC-DC CONVERTER; 3W ，宽电压输入，隔离稳压单路输出DC -DC转换器
| 型号： | WRB4812YMD-3W |
| 厂家： | 
MICRODC POWER TECHNOLOGY CO., LTD |
| 描述： | 3W, WIDE INPUT, ISOLATED & REGULATED SINGLE OUTPUT DC-DC CONVERTER |
| 文件： | 总4页 (文件大小：878K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
WRA-YMD-3W＆WRB-YMD -3W Series
3W, WIDE INPUT, ISOLATED & REGULATED DUAL/SINGLE OUTPUT DC-DC CONVERTER
SELECTION GUIDE
Input
Output
Current(mA)
Efficiency
(%,Typ)
Voltage(VDC)
Voltage
(VDC)
±5
±12
±15
5
Order code
Nominal
Range
Max*
11
11
11
11
11
11
22
22
22
22
22
22
22
22
40
40
40
40
40
40
40
40
80
80
80
80
80
80
80
80
155
155
Max.
±300
±125
±100
600
Min.
±30
±12
±10
60
WRA0505YMD-3W
WRA0512YMD-3W
WRA0515YMD-3W
WRB0505YMD-3W
WRB0512YMD-3W
WRB0515YMD-3W
WRA1205YMD-3W
WRA1212YMD-3W
WRA1215YMD-3W
WRB1205YMD-3W
WRB1209YMD-3W
WRB1212YMD-3W
WRB1215YMD-3W
WRB1224YMD-3W
WRA2405YMD-3W
WRA2412YMD-3W
WRA2415YMD-3W
WRB2405YMD-3W
WRB2409YMD-3W
WRB2412YMD-3W
WRB2415YMD-3W
WRB2424YMD-3W
WRA4805YMD-3W
WRA4812YMD-3W
WRA4815YMD-3W
WRB4805YMD-3W
WRB4809YMD-3W
WRB4812YMD-3W
WRB4815YMD-3W
WRB4824YMD-3W
WRB11012YMD-3W
WRB11024YMD-3W
5
5
4.5-9
4.5-9
4.5-9
4.5-9
4.5-9
4.5-9
9-18
68
72
71
68
72
71
76
80
80
77
78
80
81
80
77
80
80
77
79
81
81
80
77
80
81
77
79
81
81
80
80
78
5
FEATURES
◆Wide (2:1) Input Range
5
5
12
250
25
◆Short Circuit Protection(automatic recovery)
◆1500VDC Isolation
5
15
200
20
12
12
12
12
12
12
12
12
24
24
24
24
24
24
24
24
48
48
48
48
48
48
48
48
110
110
±5
±12
±15
5
±300
±125
±100
600
±30
±12
±10
60
◆Operating Temperature: -40℃～﹢85℃
◆No heat sink required
9-18
9-18
9-18
◆No external component required
◆Internal SMD required
9-18
9
333
33
9-18
12
250
25
◆Five sided metal shielding
◆MTBF>1000Khours
9-18
15
200
20
9-18
24
125
12
18-36
18-36
18-36
18-36
18-36
18-36
18-36
18-36
36-72
36-72
36-72
36-72
36-72
36-72
36-72
36-72
72-144
72-144
±5
±12
±15
5
±300
±125
±100
600
±30
±12
±10
60
MODEL SELECTION
⑦
①
②
③
④
⑤
⑥
WRB 48 05 Y M D -3W
①Product Series
③Output Voltage
⑤Metal Shield
⑦Rated Power
②Input Voltage
④Wide (2:1) Input Range
⑥DIP Package Style
9
333
33
12
250
25
APPLICATIONS
15
200
20
The WRA_YMD-3W&WRB_YMD-3W Series are
specially designed for applications where a wide range
input voltage power supplies are isolated from the input
power supply in a distributed power supply system on a
circuit board.
24
125
12
±5
±12
±15
5
±300
±125
±100
600
±30
±12
±10
60
These products apply to:
1)
2)
3)
Where the voltage of the input power supply is
wide range (Voltage range≤2:1);
9
333
33
Where isolation is necessary between input and
output (Isolation voltage≤1500VDC);
12
250
25
Where the regulation of the Output voltage and
the output ripple noise are demanded.
15
200
20
24
125
12
12
250
25
24
125
12
MICRODC RESERVES THE COPYRIGHT
*Input voltage can’t exceed this value,or will cause the permanent damage.
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Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646
Page 1 / 4
WRA-YMD-3W＆WRB-YMD -3W Series
TEMPERATURE CHARACTERISTICS
TYPICAL CHARACTERISTICS
Parameter
Conditions
Min.
Typ.
Max.
Units
Temperature Derating Graph
Output power
Refer to products program
0.3
3
W
Positive voltage accuracy
Negative voltage accuracy
Load regulation
Refer to recommended circuit
Refer to recommended circuit
Form 10% to 100% load
±1
±3
±3
±5
%
%
±0.5
±0.2
±1*
±0.5
±0.03
150
%
Line regulation
Input voltage from low to high
Refer to recommended circuit
20MHz Bandwidth
%
Temperature drift (Vout)
Ripple & Noise**
%/°C
mVp-p
KHz
75
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
Output Graph
Case material
COMMON SPECIFICATIONS
Parameter
Storage humidity
Operating temperature
Storage temperature
Temp. rise at full load
Lead temperature
Cooling
Conditions
Min.
Typ.
Max.
95
Units
%
-40
-55
±1
±3
15
85
℃
125
℃
℃
1.5mm from case for 10 seconds
300
℃
Free Air Convection
Short circuit protection
Case material
Continuous, Automatic recovery
Aluminium Alloy
No-load power consumption
Isolation voltage
Isolation resistance
Isolation Capacitance
MTBF
0.2
W
Tested for1 minute and 1mA max
Test at 500VDC
1500
1000
VDC
MΩ
Input/output
100
15
pF
1000
K hours
g
Weight
APPLICATION NOTE
Requirement on output load
Output External Capacitor Table(Table 1)
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
thespecifiedrangeofinputvoltageIsnotexceeded,theminimum
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.
Single Vout
Cout
(μF)
2200
1000
680
Dual Vout Cout
(VDC)
3.3
5
(VDC)
±5
(μF)
680
470
330
220
----
±9
9
±12
±15
----
12
470
15
330
24
220
----
----
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Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646
Page 2 / 4
WRA-YMD-3W＆WRB-YMD -3W Series
APPLICATION NOTE
Recommended Circuit
All the WRA_YMD-3W&WRB_YMD-3W Series have been tested according to the following recommended testing circuit before
leaving factory.This series should be tested under load(see Figure 1).
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:
5V&12V
100μF
24V&48V
10μF-47μF
Cout: 10μF/100mA
Input current
While using unstable power source,please ensure the output voltage and ripple voltage do not exceed indexes of the
converter.The preceding power source must be able to provide for converter sufficient starting current Ip(Figure
2).General:Ip≤1.4*Iin-max
No parallel connection or plug and play
OUTLINE DIMENSIONS ＆ FOOTPRINT DETAILS
MECHANICAL DIMENSIONS
RECOMMENDED FOOTPRINT
RECOMMENDED FOOTPRINT
Top view,grid:2.54mm(0.1inch)
diameter:1.00mm(0.039inch)
Note:
Unit:mm[inch]
Pin section tolerances:±0.10mm[±0.004inch]
General tolerances:±0.25mm[±0.010inch]
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Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646
Page 3 / 4
WRA-YMD-3W＆WRB-YMD -3W Series
OUTLINE DIMENSIONS ＆ FOOTPRINT DETAILS
FOOTPRINT DETAILS
TUBE OUTLINE DIMENSIONS
Pin
1
Single
GND
Vin
Dual
GND
Vin
2
3
+Vo
NC
+Vo
0V
4
5
0V
-Vo
NC:No connection
When the environment temperature is higher than 71℃, the
product output power should be less then 60% of the rated
power.
Note:
No parallel connection or plug and play.
Unit :mm[inch]
General tolerances:±0.50mm[±0.020inch]
Use dual output simultaneously,forbid opening output pin (0V) L=530mm[20.866inch] Tube Quantity: 19pcs
to use as single output.
L=220mm[8.661inch] Tube Quantity: 7pcs
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°C, 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
Microdc Professional Power Module,Inc.
for 10 seconds. The pin termination finish on the SIP package type is Tin Plate, Hot Dipped over Matte
Tel:0086-20-86000646 E-mail:tech@microdc.cn
Tin with Nickel Preplate. The DIP types are Matte Tin over Nickel Preplate. Both types in this series are
Website:http://www.microdc.cn
backward compatible with Sn/Pb soldering systems.
Microdc Professional Power module,Inc.makes no representation that
the use of its products in the circuits described herein, or the use of other
REACH COMPLIANT INFORMATION
technical information contained herein, will not infringe upon existing or
This series has proven that this product does not contain harmful chemicals, it also has harmful chemical
future patent rights. Specifications are subject to change without notice.
substances through the registration, inspection and approval.
©2010 Microdc Professional Power Module, Inc. Guangzhou
http://www.microdc.cn
Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646
Page 4 / 4
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