WRA-YS-2W&WRB-YS -2W Series
WIDE INPUT,ISOLATED & REGULATED Dual/Single Output SIP DC/DC Converter
SELECTION GUIDE
Input
Output
Current(MA)
Efficiency
(%,Typ)
order code
Voltage
(VDC)
Voltage(VDC)
Range
Nominal
Max*
Max
Min
WRA0505YS-2W
WRA0512YS-2W
WRA0515YS-2W
WRB0505YS-2W
WRB0509YS-2W
WRB0512YS-2W
WRB0515YS-2W
WRA1205YS-2W
WRA1209YS-2W
WRA1212YS-2W
WRA1215YS-2W
WRB1205YS-2W
WRB1209YS-2W
WRB1212YS-2W
WRB1215YS-2W
WRA2405YS-2W
WRA2412YS-2W
WRA2415YS-2W
WRB2403YS-2W
WRB2405YS-2W
WRB2409YS-2W
WRB2412YS-2W
WRB2415YS-2W
WRA4805YS-2W
WRA4812YS-2W
WRA4815YS-2W
WRB4805YS-2W
WRB4809YS-2W
WRB4812YS-2W
WRB4815YS-2W
5
4.5-9.0
4.5-9.0
11
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
±200
±83
±67
400
222
167
133
±200
±111
±83
±67
400
222
167
133
±200
±83
±67
500
400
222
167
133
±200
±83
±67
400
222
167
133
±20
±8
±7
40
22
16
13
±20
±11
±8
±7
40
22
16
13
±20
±8
±7
50
40
22
16
13
±20
±8
±7
40
22
16
13
±5
±12
±15
5
67
72
73
67
72
73
72
73
78
78
77
75
77
79
80
76
79
78
67
77
79
80
80
75
79
79
75
76
78
78
5
FEATURES
◆RoHS compliant
5
4.5-9.0
5
4.5-9.0
5
4.5-9.0
9
◆Efficiency up to 86%
5
4.5-9.0
12
15
±5
±09
±12
±15
5
5
4.5-9.0
◆SIP8 Package
12
12
12
12
12
12
12
12
24
24
24
24
24
24
24
24
48
48
48
48
48
48
48
9.0-18.0
9.0-18.0
9.0-18.0
9.0-18.0
9.0-18.0
9.0-18.0
9.0-18.0
9.0-18.0
18.0-36.0
18.0-36.0
18.0-36.0
18.0-36.0
18.0-36.0
18.0-36.0
18.0-36.0
18.0-36.0
36.0-72.0
36.0-72.0
36.0-72.0
36.0-72.0
36.0-72.0
36.0-72.0
36.0-72.0
◆Wide temperature performance at full 2 Watt
load,-40°C to 85°C
◆UL 94V-0 package material
◆No heat sink required
9
12
15
±5
±12
±15
3.3
5
◆ Low ripple and good EMC Features
◆ Industry standard pin out
◆ Power sharing on output
◆ I/O Isolation 1500VDC
9
◆ Short Circuit Protection(automatic recovery)
◆ Internal SMD construction
◆ External On/Off control
◆ 2:1 wide input voltage range
12
15
±5
±12
±15
5
9
MODEL SELECTION
12
15
①
②
③
④
⑤
⑥
WRA 05 05 Y S -2W
①Product Series
③Output Voltage
②Input Voltage
④Wide (2:1) Input Range
*Input voltage can't exceed this value,or will cause the permanent damage.
⑤SIP8 Package Style ⑥Rated Power
DESCRIPTION
The WRA_YS-2W&WRB_YS-2W 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.
These products apply to:
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);
3) where the regulation of the output voltage and
the output ripple noise are demanded.
OUTPUT SPECIFICATIONS
Parameter
Test conditions
Min.
0.2
Typ.
Max.
2
Units
W
Output power
Line regulation
Refer to product program
Input voltage from low to high
10% to 100% full load(WRB_YS-2W)
10% to 100% full load(WRA_YS-2W)*
Refer to recommended circuit
Refer to recommended circuit
20MHz Bandwidth
±0.2
±0.5
±0.5
±1
±0.5
±0.7
±1.0
±3.0
±0.0
75
%
%
Load regulation
%
Output voltage accuracy
Temperature drift(Vout)
Output Ripple**
%
%/°C
MV p-p
MV p-p
Khz
25
25
Output Noise**
20MHz Bandwidth
75
Switching frequency
100% Full load,input voltage range
300
*
Dual output models unbalanced load (25/100%):±5%Max
* *Test ripple and noise by "parallel cable" method. See detailed operation instructions at Testing of Power
Converter section, application notes.
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http://www.microdc.cn
Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646
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