WRB-YES-1W
＆
WRB-YES-2W
Wide Input,Isolated&Regulated Single Output SIP12 DC-DC Converter
SELECTION GUIDE
Input
order code
Nominal
WRB0505YES-1W
Voltage(VDC)
Range
Max*
Output
Current(MA)
Max
Min
Voltage
(VDC)
(%,Typ)
Efficiency
5
5
5
5
12
12
12
12
24
24
24
24
48
48
48
48
5
5
5
5
12
12
12
12
24
24
24
24
48
48
48
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
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
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
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
11
11
11
11
22
22
22
22
40
40
40
40
80
80
80
80
11
11
11
11
22
22
22
22
40
40
40
40
80
80
80
200
111
83
67
200
111
83
67
200
111
83
67
200
111
83
67
400
222
168
133
400
222
168
133
400
222
168
133
400
222
168
20
11
8
7
20
11
8
7
20
11
8
7
20
11
8
7
40
22
16
13
40
22
16
13
40
22
16
13
40
22
16
13
5
9
12
15
5
9
12
15
5
9
12
15
5
9
12
15
5
9
12
15
5
9
12
15
5
9
12
15
5
9
12
15
72
74
76
75
76
78
80
80
76
78
81
81
76
78
80
80
72
74
76
75
76
78
80
80
76
78
81
81
76
78
80
80
FEATURES
◆
◆
◆
◆
WRB0509YES-1W
WRB0512YES-1W
WRB0515YES-1W
WRB1205YES-1W
RoHS compliant
Efficiency up to 86%
SIP12 Package
Wide temperature performance at full 1-2 Watt
WRB1209YES-1W
WRB1212YES-1W
WRB1215YES-1W
WRB2405YES-1W
WRB2409YES-1W
WRB2412YES-1W
WRB2415YES-1W
WRB4805YES-1W
load,-40°C to 85°C
◆
◆
◆
◆
◆
◆
◆
◆
◆
◆
UL 94V-0 package material
Internal filtering
Low noise and good EMC Features
Industry standard pinout
100% burned in
I/O Isolation 1500VDC
Short Circuit Protection(automatic recovery)
Internal SMD construction
No external components required
2:1 wide input voltage range
WRB4809YES-1W
WRB4812YES-1W
WRB4815YES-1W
WRB0505YES-2W
WRB0509YES-2W
WRB0512YES-2W
WRB0515YES-2W
WRB1205YES-2W
WRB1209YES-2W
WRB1212YES-2W
WRB1215YES-2W
WRB2405YES-2W
WRB2409YES-2W
WRB2412YES-2W
WRB2415YES-2W
⑥
MODEL SELECTION
WRB 05 05 Y ES -1W
①
②
③
④
⑤
WRB4805YES-2W
WRB4809YES-2W
WRB4812YES-2W
①Product
Series
②Input
Voltage
③Output
Voltage
④Wide
(2:1) Input Range
⑤Lengthen
SIP12 Package
⑥
Rated Power
WRB4815YES-2W
48
36.0-72.0
80
133
*Input voltage can't exceed this value,or will cause the permanent damage.
s
DESCRIPTION
The WRB-YES-1W&WRB-YES-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.
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
Refer to product program
Input voltage from low to high
10% to 100% full load(WRB_YES-1W)
10% to 100% full load(WRB_YES-2W)
Refer to recommended circuit
Refer to recommended circuit
20MHz Bandwidth
20MHz Bandwidth
100% Full load,input voltage range
0.1
0.2
1
2
±0.2
±0.2
±0.2
±1
±3.0
±0.03
W
W
%
%
%
%
%/°C
MV p-p
100
25
75
300
75
MV p-p
Khz
* *Test ripple and noise by "parallel cable" method.
All specifications typical at nominal line,full load,and 25℃ unless otherwise noted.
MICRODC R ESERVES THE COPYRIGHT
http://www.microdc.cn
Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646
Page 1 of 3
WRB-YES-1W
＆
WRB-YES-2W
TEMPERATURE CHARACTERISTICS
Parameter
Storage humidity range
NO-load power consumption
Operating temperature
Storage temperature
Lead temperature
Temp.rise at full load
Cooling
Case material
Short circuit protection
*
MTBF
Weight
1000
6.6
1.5mm from case for 10 seconds
15
-25
-55
120
71
125
300
35
TYPICAL CHARACTERISTICS
Min.
Typ.
Max.
95
Conditions
Units
%
°C
°C
°C
°C
°C
Temperature Derating Graph
Free air convection
Non-Conductive Plastic(UL94-V0)
Continuous,automatic recovery
K hours
g
*Supply voltage must be discontinued at the end of short circuit duration.
INPUT SPECIFICATIONS
Parameter
Input voltage
Input filter
conditions
2:1 input range
Pi network
RECOMMENDED CIRCUIT
OUTPUT GRAPH
SIMPLIFIED SCHEMATIC
ISOLATION SPECIFICATIONS
Parameter
Isolation test voltage
Isolation resistance
Isolation capacitance
Test conditions
Flash tested for 1 minute and 1mA max
Test at Viso=500VDC
100KHz,1v
Min.
1500
1000
Typ.
Max.
Units
VDC
MΩ
35
80
pF
APPLICATION NOTE
SIZE Graph
1) Recommended circuit
If you want to further decrease the input/output ripple, an ”LC” filtering network may be connected to the input and output
ends of the DC/DC converter, see (Figure 1). Lin 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
24V,48V
Cout:
Lin:
Lout:
47PF(typ.)
4.7PH ~120PH
2.2PH ~10PH
100PF
10uF
TYPICAL APPLICATIONS
2) 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.
General: Ip≤1.4*Iin-max
3) No parallel connection or plug and play
EXTERNAL CAPACITOR TABLE (TABLE 1)
Single Vout
Cout
(VDC)
5
9
12
15
(μF)
680
560
470
330
http://www.microdc.cn
Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646
Page 2 of 3
WRB-YES-1W
＆
WRB-YES-2W
OUTLINE DIMENSIONS
＆
FOOTPRINT DETAILS
MECHANICAL DIMENSIONS
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]
FOOTPRINT DETAILS
TUBE OUTLINE DIMENSIONS
Pin
1
3
6
8
10
12
Single
+Vin
-Vin
NC
NC
+Vo
-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.
No parallel connection or plug and play.
Note:
Unit :mm[inch]
General tolerances:±0.50mm[±0.020inch]
L=530mm[20.866inch]
Tube Quantity: 16pcs
L=220mm[8.661inch]
Tube Quantity: 6pcs
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 data sheet, 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℃ 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.
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.
Microdc Professional Power Module,Inc.
Tel:0086-20-86000646
E-mail:tech@microdc.cn
Website:http://www.microdc.cn
http://www.microdc.cn
Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646
Page 3 of 3
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