WR-YD-3W

WRA-YD-3W&WRB-YD -3W Series
3W, WIDE INPUT, ISOLATED & REGULATED DUAL/SINGLE OUTPUT DC
DC--DC CONVERTER
SELECTION GUIDE
Input
Output
Efficiency
Order code
Voltage(VDC)
Current(mA)
Voltage
(%.Typ.)
FEATURES
◆Wide (2:1) Input Range
◆Short Circuit Protection(automatic recovery)
◆1500VDC Isolation
◆Operating Temperature: -40℃~﹢85℃
◆Five sided metal shielding
◆No external component required
◆Internal SMD construction
◆RoHS Compliance
◆MTBF>1000Khours
MODEL SELECTION
①
②
③
④
⑤
⑥
WRB 24 15 Y D -3W
①Product Series
②Input Voltage
③Output Voltage
④Wide (2:1) Input Range
⑤DIP24 Package Style ⑥ Rated Power
APPLICATIONS
The WRA_YD-3W&WRB_YD-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.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.
(VDC)
Max.
Min.
11
±5
±300
±30
76
11
±12
±125
±12
81
4.5-9
11
±15
±100
±10
83
5
4.5-9
11
5
600
60
76
WRB0512YD-3W
5
4.5-9
11
12
250
25
81
WRB0515YD-3W
5
4.5-9
11
15
200
20
81
WRA1205YD-3W
12
9-18
22
±5
±300
±30
76
WRA1212YD-3W
12
9-18
22
±12
±125
±12
81
WRA1215YD-3W
12
9-18
22
±15
±100
±10
83
WRB1203YD-3W
12
9-18
22
3.3
909
91
74
WRB1205YD-3W
12
9-18
22
5
600
60
76
WRB1212YD-3W
12
9-18
22
12
250
25
81
WRB1215YD-3W
12
9-18
22
15
200
20
81
WRA2405YD-3W
24
18-36
40
±5
±300
±30
76
WRA2412YD-3W
24
18-36
40
±12
±125
±12
81
WRA2415YD-3W
24
18-36
40
±15
±100
±10
83
WRB2403YD-3W
24
18-36
40
3.3
909
91
74
WRB2405YD-3W
24
18-36
40
5
600
60
76
WRB2412YD-3W
24
18-36
40
12
250
25
81
WRB2415YD-3W
24
18-36
40
15
200
20
81
WRA4805YD-3W
48
36-72
80
±5
±300
±30
85
WRA4812YD-3W
48
36-72
80
±12
±125
±12
83
WRA4815YD-3W
48
36-72
80
±15
±100
±10
85
WRB4803YD-3W
48
36-72
80
3.3
909
91
74
WRB4805YD-3W
48
36-72
80
5
600
60
78
WRB4812YD-3W
48
36-72
80
12
250
25
80
WRB4815YD-3W
48
36-72
80
15
200
20
80
WRB11012YD-3W
110
72-144
155
12
250
25
80
WRB11024YD-3W
110
72-144
155
24
125
12
78
Nominal
Range
Max*
WRA0505YD-3W
5
4.5-9
WRA0512YD-3W
5
4.5-9
WRA0515YD-3W
5
WRB0505YD-3W
*Input voltage can’t exceed this value,or will cause the permanent damage.
COMMON SPECIFICATIONS
Parameter
Min.
-40
Storage temperature
-55
Temp. rise at full load
Lead temperature
Max.
Units
95
%
85
℃
125
℃
℃
15
℃
300
1.5mm from case for 10 seconds
No-load power
0.2
W
Cooling
Free Air Convection
Short circuit protection
Continuous,automatic recovery
Steel,nickel coated, copper
Isolation voltage
Tested for1 minute and 1mA
1500
Isolation resistance
Test at 500VDC
1000
Isolation Capacitance
Input/Output
MTBF
VDC
MΩ
85
1000
Weight
http://www.microdc.cn
Typ.
Storage humidity
Operating temperature
Case material
MICRODC reserves the copyright
Conditions
Technical Enquiries-Email:[email protected] Tel:0086-20-86000646
pF
K hours
15
g
page 1/3
WRA-YD-3W&WRB-YD -3W Series
TEMPERATURE CHARACTERISTICS
Parameter
Conditions
Min.
Output power
See below products program
0.3
Positive voltage accuracy
Refer to recommended circuit
Negative voltage accuracy
TYPICAL CHARACTERISTICS
Typ.
Max.
Units
3
W
±1
±3
%
Refer to recommended circuit
±3
±5
%
Load regulation
10% to 100% load WRB-YD-3W
±0.5
±1
%
Load regulation
10% to 100% load WRA-YD-3W*
±0.5
±0.5
%
Temperature drift (Vout)
Refer to recommended circuit
±0.03
%/℃
Line regulation
Input voltage from low to high
±0.2
±0.5
%
Ripple&Noise**
20MHz Bandwidth
50
100
mVp-p
Switching frequency
100% load, input voltage range
300
KHz
Temperature Derating Graph
RECOMMENDED CIRCUIT
* Dual output models unbalanced load: ±5%.
Output Graph
** Test ripple and noise by “parallel cable” method. See detailed operation instructions at Testing of Power Converter section,
application notes.
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_YD-3W&WRB_YD-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 100μF-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. Input current of
power supply should afford the startup current of this kind of DC/DC module
(See figure 2).
General:Ip≤1.4*Iin-max
Output External Capacitor Table(Table 1)
Single Vout
Cout
Dual Vout
Cout
(VDC)
(μF)
(VDC)
(μF)
3.3
2200
±5
680
5
1000
±9
470
12
470
±12
330
15
330
±15
220
No parallel connection or plug and play
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Technical Enquiries-Email:[email protected] Tel:0086-20-86000646
page 2/3
WRA-YD-3W&WRB-YD -3W Series
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]
TUBE OUTLINE DIMENSIONS
FOOTPRINT DETAILS
Pin
Single
Dual
2、3
GND
GND
9
NC
0V
11
NC
-Vo
14
+Vo
+Vo
16
0V
0V
22、23
Vin
Vin
NC:No connection
When the environment temperature is higher than
71
71℃,, the product output power should be less
then 60% of the rated power.
No parallel connection or plug and play.
Use dual output simultaneously,forbid pening
output pin (0V) to use as single output.
Note:
Note:
Unit :mm[inch]
General tolerances:±0.50mm[±0.020inch]
L=530mm[20.866inch] Tube Quantity: 15pcs
L=220mm[8.661inch] Tube Quantity: 6pcs
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.
http://www.microdc.cn
Technical Enquiries-Email:[email protected] Tel:0086-20-86000646
page 3/3