WRA2405YMT-2W [MICRODC]
2W, WIDE INPUT, ISOLATED & REGULATED DUAL OUTPUT DC/DC CONVERTER; 2W ，宽电压输入，隔离稳压双输出DC / DC转换器
| 型号： | WRA2405YMT-2W |
| 厂家： | 
MICRODC POWER TECHNOLOGY CO., LTD |
| 描述： | 2W, WIDE INPUT, ISOLATED & REGULATED DUAL OUTPUT DC/DC CONVERTER |
| 文件： | 总3页 (文件大小：448K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
WRA-YMT-2W&WRB-YMT-2W Series
2W, WIDE INPUT, ISOLATED & REGULATED SINGLE/DUAL OUTPUT DC/DC CONVERTER
SELECTION GUIDE
Input
Output
Efficiency
(%,Typ.)
Voltage
(VDC)
Current(MA)
order code
Voltage(VDC)
Range
Nominal
Max*
Max.
Min.
±5
±12
±15
3.3
5
±200
±83
±67
500
FEATURES
◆Wide (2:1) input range
WRA1205YMT-2W
WRA1212YMT-2W
WRA1215YMT-2W
WRB1203YMT-1W6
WRB1205YMT-2W
WRB1209YMT-2W
WRB1212YMT-2W
WRB1215YMT-2W
WRA2405YMT-2W
WRA2412YMT-2W
WRA2415YMT-2W
WRB2403YMT-1W6
WRB2405YMT-2W
WRB2409YMT-2W
WRB2412YMT-2W
WRB2415YMT-2W
12
12
12
12
12
12
12
12
24
24
24
24
24
24
24
24
9-18
9-18
22
22
22
22
22
22
22
22
40
40
40
40
40
40
40
40
±20
±8
±7
50
74
78
78
70
74
76
78
79
74
78
78
72
76
78
80
80
9-18
◆Operating temperature: -40°C ~ +85 °C
◆1500VDC isolation
9-18
400
9-18
40
◆No heat sink required
9
222
9-18
22
◆Internal SMD construction
◆MTBF>1,000,000 hours
◆Short circuit protection(Automatic recovery)
◆Industry standard pinout
◆RoHS Compliance
12
167
9-18
16
15
133
9-18
13
±5
±12
±15
3.3
5
±200
±83
±67
500
18-36
18-36
18-36
18-36
18-36
18-36
18-36
18-36
±20
±8
±7
50
400
40
9
222
22
MODEL SELECTION
⑥
①
②
③
④
⑤
WRB 24 12 Y MT -2W
12
167
16
15
133
13
①Product Series
③Output Voltage
②Input Voltage
④Wide (2:1) Input Range
⑤Mini package style ⑥Rated Power
*Input voltage can't exceed this value, or will cause the permanent damage.
COMMON SPECIFICATIONS
Item
Test conditions
Min.
Typ.
Max.
Units
%
Storage humidity range
Operating temperature
95
85
-40
-55
℃
DESCRIPTION
125
℃
Storage temperature
Temp. rise at full load
The WRA_YMT-2W & WRB_YMT-2W Series are specially
designed for applications where
a wide range input
15
℃
voltage power supplies are isolated from the input power
supply in a distributed power supply system on a circuit
board.
1.5mm from case for 10 seconds
300
℃
Lead temperature
Short circuit protection
Cooling
These products apply to:
Continuous, automatic recovery
Free air convection
1) Where the voltage of the input power supply is wide
range ( voltage range ≤2:1 ) ;
2) Where isolation is necessary between input and output
(Isolation Voltage ≤1500VDC);
Epoxy Resin (UL94-V0)
Package material
MTBF
3) Where the regulation of the output voltage and the
output ripple noise are demanded.
1000
K hours
5.2
g
Weight
MICRODC reserves the copyright
http://www.microdc.cn
Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646
Page 1 of 3
WRA-YMT-2W&WRB-YMT-2W Series
TYPICAL CHARACTERISTICS
ISOLATION SPECIFICATIONS
Item
Test Conditions
Min.
Typ.
Max.
Units
Isolation voltage
Tested for 1 minute and 1mA max.
Test at 500VDC
1500
1000
VDC
MΩ
pF
Isolation resistance
Isolation capacitance
Input/Output, 100KHz/1V
85
*Supply voltage must be discontinued at the end of short circuit duration.
OUTPUT SPECIFICATIONS
Item
Output power
Test Conditions
Min.
Typ.
Max.
Units
See above products program
Refer to recommended circuit
Refer to recommended circuit
From 10% to 100% load
0.2
2
W
%
Positive voltage accuracy
Negative voltage accuracy
Load regulation
±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)
Output ripple& noise**
Switching frequency
%/℃
mVp-p
KHz
35
100% load, nominal input voltage
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
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.
Recommended Circuit
All the WRA_YMT-2W
& WRB_YMT-2W 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:
12V
100µF
24V&48V
10µF-47µF
Cout: 10µF/100mA
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 flash startup current of this kind of DC/DC module. (Figure 2)
Output External Capacitor Table (Table 1)
Single
Cout
Dual Vout
Cout
Vout
(VDC)
(μF)
(VDC)
(μF)
General: Ip ≤1..4*Iin-max
3.3
5
2200
1000
680
±5
±9
±12
±15
-
680
470
330
220
-
No parallel connection or plug and play
9
12
15
470
330
http://www.microdc.cn
Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646
Page 2 of 3
WRA-YMT-2W&WRB-YMT-2W Series
OUTLINE DIMENSIONS & PIN CONNECTIONS
MECHANICAL DIMENSIONS
RECOMMENDED FOOTPRINT(TOP VIEW)
DUAL/SINGLE OUTPUT
TUBE OUTLINE DIMENSIONS
Note:
Unit:mm[ inch]
Pin section tolerances:±0.10mm[±0.004inch]
General tolerances:±0.25mm[±0.010inch]
FOOTPRINT DETAILS
Pin
Single
Dual
1
GND
NC
GND
NC
7
Note:
8
NC
0V
Unit :mm[inch]
9
+Vo
0V
+Vo
-Vo
Vin
General tolerances: ±0.50mm[±0.020inch]
L=530mm[20.866inch] Tube Quantity: 21pcs
10
16
Vin
L=220mm[8.661inch]
Tube Quantity: 8pcs
NC: No connection
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. Capacitor MAX load tested at input voltage range and full load.
4. All specifications measured at Ta=25℃, humidity<75%, nominal input voltage and rated output load unless otherwise specified.
5. In this datasheet, all the test methods of indications are based on corporate standards.
6. 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
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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