WRA-YS-1W
＆
WRB-YS -1W
Series
WIDE INPUT,ISOLATED & REGULATED Dual/Single Output SIP DC/DC Converter
SELECTION GUIDE
Input
order code
Nominal
Voltage(VDC)
Range
Max*
Output
Current(MA)
Max
Min
Voltage
(VDC)
(%,Typ)
Efficiency
WRA0505YS-1W
5
5
5
5
5
5
5
12
12
12
12
12
12
12
24
24
24
24
24
24
24
48
48
48
48
48
48
48
4.5-9.0
4.5-9.0
4.5-9.0
4.5-9.0
4.5-9.0
4.5-9.0
4.5-9.0
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
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
11
11
11
11
11
11
11
22
22
22
22
22
22
22
40
40
40
40
40
40
40
80
80
80
80
80
80
80
±100
±42
±33
200
111
83
67
±100
±42
±33
200
111
83
67
±100
±42
±33
200
111
83
67
±100
±42
±33
200
111
83
67
±10
±4
±3
20
11
8
7
±10
±4
±3
20
11
8
7
±10
±4
±3
20
11
8
7
±10
±4
±3
20
11
8
7
±5
±12
±15
5
9
12
15
±5
±12
±15
5
9
12
15
±5
±12
±15
5
9
12
15
±5
±12
±15
5
9
12
15
72
76
75
72
74
76
75
76
80
80
76
78
80
80
78
81
81
76
78
81
81
76
80
80
76
78
80
80
FEATURES
◆
RoHS compliant
◆
Efficiency up to 86%
◆
SIP Package
◆
Wide temperature performance at full
WRA0512YS-1W
WRA0515YS-1W
WRB0505YS-1W
WRB0509YS-1W
WRB0512YS-1W
WRB0515YS-1W
WRA1205YS-1W
WRA1212YS-1W
WRA1215YS-1W
WRB1205YS-1W
WRB1209YS-1W
WRB1212YS-1W
WRB1215YS-1W
WRA2405YS-1W
WRA2412YS-1W
1 Watt load,-40°C to 85°C
◆
UL 94V-0 package material
◆
No heatsink required
◆
Low ripple and good EMC Features
◆
Industry standard pinout
◆
Power sharing on output
◆
I/O Isolation 1500VDC
◆
Short Circuit Protection(
automatic recovery
)
◆
Internal SMD construction
◆
External On/Off control
◆
2:1 wide input voltage range
WRA2415YS-1W
WRB2405YS-1W
WRB2409YS-1W
WRB2412YS-1W
WRB2415YS-1W
WRA4805YS-1W
WRA4812YS-1W
WRA4815YS-1W
WRB4805YS-1W
WRB4809YS-1W
WRB4812YS-1W
MODEL SELECTION
WRA
①
05
②
05
③
Y
④
S
⑤
-1W
⑥
①Product
Series
②Input
Voltage
③Output
Voltage
④Wide
(2:1) Input Range
⑤SIP
Package Style
⑥
Rated Power
WRB4815YS-1W
*Input voltage can't exceed this value,or will cause the permanent damage.
DESCRIPTION
The WRA_YS-1W & WRB_YS-1W 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.
Typ.
Max.
Units
Output power
Line regulation
Load regulation
Output voltage accuracy
Temperature drift(Vout)
Output Ripple**
Output Noise**
Switching frequency
Refer to product program
Input voltage from low to high
10% to 100% full load(WRB_CKS-1W)
10% to 100% full load(WRA_CKS-1W)*
Refer to recommended circuit
Refer to recommended circuit
20MHz Bandwidth
20MHz Bandwidth
100% Full load,input voltage range
0.1
±0.2
±0.5
±0.5
±1
1
±0.5
±0.75
±1.0
±3.0
±0.03
25
25
300
75
75
W
%
%
%
%
%/°C
MV p-p
MV p-p
Khz
* 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.
MICRODC reserves the copyright
Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646
Page 1 of 3
MICRODC [ MICRODC POWER TECHNOLOGY CO., LTD ]
