WR-ZMD-10W

WRA_ZMD-10W&WRB_ZMD -10W Series
W, WIDE INPUT, ISOLATED & REGULATED DUAL/SINGLE OUTPUT DC
10
10W,
DC--DC CONVERTER
FEATURES
◆Wide (4:1) Input Range
SELECTION GUIDE
◆Short Circuit Protection(automatic recovery)
Input
◆1500VDC Isolation
Output
Efficiency
◆Operating Temperature: -40℃~﹢85℃
◆No heat sink required
Order code
Voltage(VDC)
Voltage
(%,Typ)
Nominal
Range
Max*
(VDC)
Max.
Min.
WRA2405ZMD-10W
24
9-36
40
±5
±1000
±100
84
WRA2412ZMD-10W
24
9-36
40
±12
±416
±42
81
WRA2415ZMD-10W
24
9-36
40
±15
±333
±33
83
WRB2405ZMD-10W
24
9-36
40
5
2000
200
79
WRB2412ZMD-10W
24
9-36
40
12
833
83
81
WRB2415ZMD-10W
24
9-36
40
15
666
67
81
WRA4812ZMD-10W
48
18-72
80
±12
±416
±42
85
WRA4815ZMD-10W
48
18-72
80
±15
±333
±33
83
WRB4812ZMD-10W
48
18-72
80
12
833
83
85
WRB4815ZMD-10W
48
18-72
80
15
666
67
83
◆No external component required
◆Internal SMD required
◆Metal shielding package
◆MTBF>1000Khours
MODEL SELECTION
WRB①24②05③Z④M⑤D⑥-10W⑦
①Product Series
③Output Voltage
⑤Metal Shield
⑦Rated Power
②Input Voltage
④Wide (4:1) Input Range
⑥DIP Package Style
Current(mA)
*Input voltage can’t exceed this value,or will cause the permanent damage.
APPLICATIONS
The WRA_ZMD-10W&WRB_ZMD-10W 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≤4:1);
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.
COMMON SPECIFICATIONS
Parameter
Conditions
Min.
Typ.
Storage humidity
Max.
Units
95
%
Operating temperature
-40
85
℃
Storage temperature
-55
125
℃
40
Temp. rise at full load
Lead temperature
℃
300
1.5mm from case for 10 seconds
℃
Cooling
Free Air Convection
Short circuit protection
Continuous, Automatic recovery
Case material
Aluminium Alloy
Isolation voltage
Tested for1 minute and 1mA max
1500
VDC
Isolation resistance
Test at 500VDC
1000
MΩ
Isolation Capacitance
Input/output
MTBF
Weight
1000
1000
pF
K hours
23.5
g
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Technical Enquiries-Email:[email protected] Tel:0086-20-86000646
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WRA_ZMD-10W&WRB_ZMD -10W Series
TEMPERATURE CHARACTERISTICS
Parameter
Conditions
Min.
Output power
See below products program
1.0
Positive voltage accuracy
Refer to recommended circuit
Negative voltage accuracy
TYPICAL CHARACTERISTICS
Typ.
Max.
Units
10
W
±1
±3
%
Refer to recommended circuit
±3
±5
%
Load regulation
Form 10% to 100% load
±0.5
±1*
%
Line regulation
Input voltage from low to high
±0.2
±0.5
%
Temperature drift (Vout)
Refer to recommended circuit
±0.03
%/°C
Ripple**
20MHz Bandwidth
20
50
mVp-p
Noise**
20MHz Bandwidth
75
150
mVp-p
Switching frequency
100% load, input voltage range
300
KHz
Temperature Derating Graph
RECOMMENDED CIRCUIT
* Dual output models unbalanced load: ±5%.
** Test ripple and noise by “parallel cable” method. See detailed
Output Graph
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_ZMD-10W&WRB_ZMD-10W Series have been tested ccording
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: 10μF-47μF
Cout: 10μF/100mA
CTRL Terminal
When open or high impedance,the converter work well; When this pin is
‘high’; the converter shutdown; It should be note that the input current (Ic)
should between 5-10mA, exceeding the maximum 20mA will cause
permanence damage to the converter.
The value of R Can be derived as follows :
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(Figure 2).
General:Ip≤1.6*Iin-max
No parallel connection or plug and play
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Output External Capacitor Table(Table 1)
Single Vout
Cout
Dual Vout
Cout
(VDC)
(μF)
(VDC)
(μF)
5
680
±5
680
12
470
±12
330
15
330
±15
220
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page 2/3
WRA_ZMD-10W&WRB_ZMD -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
0V
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.
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Technical Enquiries-Email:[email protected] Tel:0086-20-86000646
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