WRA-YDV-3W&WRB-YDV-3W
Series
3W, WIDE INPUT, ISOLATED & REGULATED DUAL/SINGLE OUTPUT DIP DC-DC CONVERTER
Input
Part Number
Nominal
Voltage (VDC)
Range
4.5-9
4.5-9
4.5-9
4.5-9
4.5-9
4.5-9
4.5-9
9-18
9-18
9-18
9-18
9-18
9-18
9-18
9-18
18-36
18-36
18-36
18-36
18-36
18-36
18-36
18-36
18-36
36-72
36-72
36-72
36-72
36-72
36-72
36-72
36-72
36-72
Max.
Max.
11
11
11
11
11
11
11
22
22
22
22
22
22
22
22
40
40
40
40
40
40
40
40
40
80
80
80
80
80
80
80
80
80
Voltage
(VDC)
±5
±12
±15
5
9
12
15
±5
±12
±15
5
9
12
15
24
±5
±12
±15
3.3
5
9
12
15
24
±5
±12
±15
3.3
5
9
12
15
24
Output
Efficiency
Efficienc
Current (mA)
(%, Typ)
Max.
±300
±125
±100
600
333
250
200
±300
±125
±100
600
333
250
200
125
±300
±125
±100
909
600
333
250
200
125
±300
±125
±100
909
600
333
250
200
125
Min.
Min.
±30
±12
±10
60
33
25
20
±30
±12
±10
60
33
25
20
12
±30
±12
±10
90
60
33
25
20
12
±30
±12
±10
90
60
33
25
20
12
68
72
73
68
70
72
73
76
79
80
76
78
80
81
82
76
80
81
74
76
78
81
80
82
76
80
81
74
76
78
81
80
82
UL
UL
UL
UL
UL
Certificate
FEATURES
◆
Wide (2:1) input range
◆
Efficiency up to 82%
◆
Operating temperature: -40
℃
~ +85
℃
◆
1500VDC isolation
◆Short
circuit protection(Automatic recovery)
◆
Internal SMD construction
◆
No heat sink required
◆No
external component required
◆
UL94-V0 package
◆
Industry standard pinout
◆MTBF>1,000,000
hours
◆
RoHS Compliance
WRA0505YDV-3W
WRA0512YDV-3W
WRA0515YDV-3W
WRB0505YDV-3W
WRB0509YDV-3W
WRB0512YDV-3W
WRB0515YDV-3W
WRA1205YDV-3W
WRA1212YDV-3W
WRA1215YDV-3W
WRB1205YDV-3W
WRB1209YDV-3W
WRB1212YDV-3W
WRB1215YDV-3W
WRB1224YDV-3W
WRA2405YDV-3W
WRA2412YDV-3W
WRA2415YDV-3W
5
5
5
5
5
5
5
12
12
12
12
12
12
12
12
24
24
24
24
24
24
24
24
24
48
48
48
48
48
48
48
48
48
MODEL SELECTION
①
②
③ ④
⑤
⑥
WRA 24 05 Y DV -3W
WRB2403YDV-3W
WRB2405YDV-3W
WRB2409YDV-3W
①Product
Series
③Output
Voltage
⑤DIP24
V Layout
②Input
Voltage
④Wide
(2:1) Input Range
⑥Rated
Power
WRB2412YDV-3W
WRB2415YDV-3W
WRB2424YDV-3W
WRA4805YDV-3W
APPLICATIONS
The WRA(B)-YDV-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.
WRA4812YDV-3W
WRA4815YDV-3W
WRB4803YDV-3W
WRB4805YDV-3W
WRB4809YDV-3W
WRB4812YDV-3W
WRB4815YDV-3W
WRB4824YDV-3W
Note: Metal package style series is WRA_YDV-3W & WRB_YDV-3W.
Absolute Maximum Ratings
Item
Isolation voltage
Isolation resistance
Test conditions
Tested for 1 minute and 1mA max.
Test at 500VDC
Input/Output
Min.
1500
1000
80
Typ.
Max.
Units
VDC
MΩ
pF
MICRODC reserves the copyright
Isolation capacitance
http://www.microdc.cn
Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646
Page 1 of 3
WRA-YDV-3W&WRB-YDV-3W
Series
OUTPUT SPECIFICATIONS
Item
Output power
Positive voltage accuracy
Negative voltage accuracy
Load regulation
Line regulation
Temperature drift(Vout)
Ripple & Noise**
Switching frequency
Test conditions
See below products program
Refer to recommended circuit
Refer to recommended circuit
From 10% to 100% load
Input voltage from low to high
Refer to recommended circuit
20MHz Bandwidth
100% load, nominal input voltage
50
300
Min.
0.3
±1
±3
±0.45
±0.2
Typ.
Max.
O3
±3
±5
±1*
±0.5
±0.03
100
Units
W
%
%
%
%
%/℃
mVp-p
KHz
TYPICAL CHARACTERISTICS
*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
COMMON SPECIFICATIONS
Item
Storage humidity
Operating temperature
Storage temperature
Temp. rise at full load
Lead temperature
No-load Power consumption
Cooling
Short circuit protection
Case material
MTBF
Weight
Free air convection
Continuous, Automatic Recovery
D: Plastic (UL94-V0);
MD: Steel, Nickel Coated
1000
15
K hours
g
1.5mm from case for 10 seconds
0.2
-40
-55
15
300
Test conditions
Min.
Typ.
Max.
95
85
125
Units
%
℃
℃
℃
℃
W
APPLICATION NOTE
Requirement On Output Load
In
order
to
ensure
the
product
operate
efficiently
and
reliably,
in
addition
to
a max
of
load(namely full
is not
load), a minimum load is specified for this kind of DC/DC converter. Make sure the specified
exceeded,
the minimum output
load no
less
than
10% load. If the actual load
is
range
less
input voltage
than the specified minimum
If
the actual output power
for
other lower
load, the output ripple may increase sharply while
is very small, please
output power products.
Recommended Circuit
add
an
appropriate
its efficiency and reliability will reduce greatly.
as
extra
loading,
or contact
resistor
our company
All the WRA_YDV-3W & WRB_YDV-3W Series have been tested according to the following recommended testing circuit
before leaving factory. This series should
be tested
under load. Never be tested under no load (see Figure 1).
Output External Capacitor Table(Table 1)
big,
a
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
startup
problem might
arise. For
every
channel
proper.
If
the
capacitance
is
too
Single Vout
(VDC)
5
9
12
15
Cout
(uF)
1000
680
470
330
220
Dual Vout
(VDC)
±5
±9
±12
±15
±24
Cout
(uF)
680
470
330
220
100
of output, provided the safe and reliable operation is ensured, the
greatest capacitance of its filter capacitor sees (Table 1). Generally: If you want to use the products in high EMI, please choose
our metal packaged products (WRA_YDV-3W & WRB_YDV-3W). General:
Cin:
5V&12V
24V&48V
Cout: 10µF/100mA
100µF
10µF-47µF
Input Current
When it is used in unregulated power supply, be sure that the fluctuating range of the power supply
voltage
do
not
exceed
the module
standard.
Input
current
of
and
the
rippled
24
power supply should afford the startup current of
this kind of DC/DC module (See figure 2), General:
Ip ≤ 1.4*Iin-max
No parallel connection or plug and play
http://www.microdc.cn
Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646
Page 2 of 3
WRA-YDV-3W&WRB-YDV-3W
Series
OUTLINE DIMENSIONS
＆
FOOTPRINT DETAILS
MECHANICAL DIMENSIONS
RECOMMENDED FOOTPRINT
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 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.
RoHS COMPLIANT INFORMATION
Microdc Professional Power Module,Inc.
Tel:0086-20-86000646 E-mail:tech@microdc.cn
Website:http://www.microdc.cn
Microdc Professional Power module,Inc.makes no representation that
the use of its products in the circuits described herein, or the use of other
technical information contained herein, will not infringe upon existing or
future patent rights. Specifications are subject to change without notice.
©2010
Microdc Professional Power Module, Inc. Guangzhou
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.
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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