MICRODC WRA-YMD-10W

WRA-YMD-10W＆WRB-YMD-10W Series
2:1 WIDE INPUT,ISOLATED&REGULATED Dual/Single Output DC/DC Converter
SELECTION GUIDE
Input
order code
Output
Current(MA)
Voltage(VDC)
Efficiency
Voltage
Nominal
Range
Max*
Max
Min
(VDC)
(%,Typ)
WRA0505YMD-10W
5
4.5-9.0
11
±1000
±100
±5
75
WRA0509YMD-10W
5
4.5-9.0
11
±556
±56
±9
76
WRA0512YMD-10W
5
4.5-9.0
11
±416
±42
±12
80
WRA0515YMD-10W
5
4.5-9.0
11
±333
±33
±15
82
WRB0505YMD-10W
5
4.5-9.0
11
2000
200
5
76
WRB0509YMD-10W
5
4.5-9.0
11
1111
111
9
78
WRB0512YMD-10W
5
4.5-9.0
11
833
83
12
80
WRB0515YMD-10W
5
4.5-9.0
11
666
66
15
82
WRA1205YMD-10W
12
9.0-18.0
20
±1000
±100
±5
79
WRA1209YMD-10W
12
9.0-18.0
20
±556
±56
±9
84
WRA1212YMD-10W
12
9.0-18.0
20
±416
±42
±12
82
WRA1215YMD-10W
12
9.0-18.0
20
±333
±33
±15
84
WRB1203YMD-10W
12
9.0-18.0
20
2500
250
3.3
79
WRB1205YMD-10W
12
9.0-18.0
20
2000
200
5
79
WRB1209YMD-10W
12
9.0-18.0
20
1111
111
9
81
WRB1212YMD-10W
12
9.0-18.0
20
833
83
12
82
WRB1215YMD-10W
12
9.0-18.0
20
666
66
15
84
WRB1224YMD-10W
12
9.0-18.0
20
416
42
24
82
WRA2405YMD-10W
24
18.0-36.0
40
±1000
±100
±5
81
WRA2409YMD-10W
24
18.0-36.0
40
±556
±56
±9
79
◆ Metal shielding package
WRA2412YMD-10W
24
18.0-36.0
40
±416
±42
±12
84
WRA2415YMD-10W
24
18.0-36.0
40
±333
±33
±15
86
◆ MTBF>1000000 hours
WRB2403YMD-10W
24
18.0-36.0
40
2500
250
3.3
78
WRB2405YMD-10W
24
18.0-36.0
40
2000
200
5
80
WRB2409YMD-10W
24
18.0-36.0
40
1111
111
9
78
WRB2412YMD-10W
24
18.0-36.0
40
833
83
12
84
WRB2415YMD-10W
24
18.0-36.0
40
666
66
15
86
WRA4805YMD-10W
48
36.0-72.0
80
±1000
±100
±5
80
WRA4809YMD-10W
48
36.0-72.0
80
±556
±56
±9
80
WRA4812YMD-10W
48
36.0-72.0
80
±416
±42
±12
84
WRA4815YMD-10W
48
36.0-72.0
80
±333
±33
±15
85
WRB4803YMD-10W
48
36.0-72.0
80
2500
250
3.3
78
WRB4805YMD-10W
48
36.0-72.0
80
2000
200
5
80
WRB4809YMD-10W
48
36.0-72.0
80
1111
111
9
80
WRB4812YMD-10W
48
36.0-72.0
80
833
83
12
84
WRB4815YMD-10W
48
36.0-72.0
80
666
66
15
86
FEATURES
◆RoHS compliant
◆Efficiency up to 86%
◆DIP Package
◆Wide temperature performance at full
10 Watt load,-40°C to 85°C
◆UL 94V-0 package material
◆No heatsink required
◆ Industry standard pinout
◆ I/O Isolation 1500VDC
◆ Short Circuit Protection(automatic recovery)
MODEL SELECTION
①
②
③ ④
⑤
⑥
⑦
WR
WRB
B 24 05 Y M D -10
10W
W
①Product Series
③Output Voltage
⑤Metal Shield
⑦Rated Power
②Input Voltage
④Wide (2:1) Input Range
⑥DIP Package Style
DESCRIPTION
The WRA_YMD-10W & WRB_YMD-10W 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.
MICRODC reserves the copyright
*Input voltage can't exceed this value,or will cause the permanent damage.
OUTPUT SPECIFICATIONS
Parameter
Test conditions
Output power
Refer to products program
Positive voltage accuracy
Refer to recommended circuit
Negative voltage accuracy
Min.
Typ.
Max.
Units
10
W
±1.0
±3.0
%
Refer to recommended circuit
±3.0
±5.0
%
Load regulation
From 10% to 100% full load
±0.5
±1.0*
%
Line regulation(at full load)
Input voltage from low to high
±0.2
Temperature drift(Vout)
Refer to recommended circuit
Output Ripple**
20MHz Bandwidth
Output Noise**
20MHz Bandwidth
Switching frequency
100% Full load,input voltage range
300
1
±0.5
%
±0.03
%/°C
20
50
MV p-p
85
150
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.
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Technical Enquiries-Email:[email protected] Tel:0086-20-86000646
Page 1 of 3
WRA-YMD-10W＆WRB-YMD-10W Series
TYPICAL CHARACTERISTICS
TEMPERATURE CHARACTERISTICS
Parameter
Conditions
Min.
Typ.
Storage humidity range
Max.
95
NO-load power consumption
500
%
MW
Operating temperature
-40
85
°C
Storage temperature
-55
125
°C
300
°C
Lead temperature
1.5mm from case for 10 seconds
Temp.rise at full load
40
Cooling
Temperature Derating Graph
Units
°C
Free air convection
Case material
Plastic(UL94-V0)
Short circuit protection*
Continuous,automatic recovery
Case material
Aluminium alloy
MTBF
1000
Weight
K hours
23.5
g
*Supply voltage must be discontinued at the end of short circuit duration.
RECOMMENDED CIRCUIT
ISOLATION SPECIFICATIONS
Parameter
Test conditions
Min.
Isolation test voltage
Flash tested for 1 minute and 1mA max
1500
Isolation resistance
Test at Viso=500VDC
1000
Isolation capacitance
Input/Outpu
Typ.
Max.
OUTPUT Graph
Units
VDC
MΩ
100
pF
APPLICATION NOTE
1) 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.
2) Recommended Circuit
All the WRA_YMD-10W & WRB_YMD-10W 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).
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
10μF-47μF
Cout: 10PF/100mA
3) Input current
When it is used in unregulated power supply,be sure that the fluctuating range of the power supply
and the rippled voltage do not exceed the module standard.Input current of power supply should afford
the startup current of this kind of DC/DC module (Figure 2).
EXTERNAL CAPACITOR TABLE (TABLE 1)
General: Ip≤1.4*Iin-max
4) No parallel connection or plug and play
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Single Vout
Cout
Dual Vout
Cout
(VDC)
(μF)
(VDC)
(μF)
3.3
2200
±5
680
5
1000
±12
330
12
470
±15
220
15
330
_
_
24
220
_
_
Technical Enquiries-Email:[email protected] Tel:0086-20-86000646
Page 2 of 3
WRA-YMD-10W＆WRB-YMD-10W Series
OUTLINE DIMENSIONS ＆ FOOTPRINT DETAILS
MECHANICAL DIMENSIONS
RECOMMENDED FOOTPRINT
Note:
Unit:mm[inch]
Pin section tolerances:±0.10mm[±0.004inch]
General tolerances:±0.25mm[±0.010inch]
FOOTPRINT DETAILS
Pin
Single
Dual
1
GND
GND
2
Vin
Vin
3
+Vo
+Vo
4
NC
COM
5
0V
-Vo
RECOMMENDED FOOTPRINT
Top view,grid:2.54mm(0.1inch)
diameter:1.00mm(0.039inch)
TUBE OUTLINE DIMENSIONS
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:
Unit :mm[inch]
General tolerances:±0.50mm[±0.020inch]
L=230mm[9.055inch] Tube Quantity: 7pcs
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°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 of 3