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WRA_ZP- 3WR2&WRB_ZP- 3WR2 Series
3W
，
WIDE INPUT, ISOLATED & REGULATED
DUAL/SINGLE OUTPUT, DC-DC CONVERTER
Patent Protection RoHS
PART NUMBER SYSTEM
WRA0505ZP-3WR2
Product Series
Input Voltage
Output Voltage
Package Style
Rated Power
FEATURES
● 2:1 wide input voltage range
● DIP Package
● Efficiency up to 86%
● 1.5KVDC isolation
● Short Circuit Protection(automatic recovery)
● Operating Temperature Range:
-40°C ~ +85°C
● Meet CISPR22/EN55022 CLASS A
APPLICATION
The WRA_ZP-3WR2 & WRB_ZP-
3WR2 Series are
specially designed for applications where a wide range input
voltage power supplies are unregulated from the input power
supply in a distributed power supply system on a circuit
board.
These products apply to where:
1) Input voltage range ≤2:1;
2) 1.5KVDC input and output isolation;
3) Output regulated and low ripple noise is required.
SELECTION GUIDE
Input Voltage(VDC)
Output Current (mA)
Input Current (mA)(Typ.)
Model Number Nominal
(Range) Max**
Output
Voltage
(VDC)
Max. Min. @Max.
Load @No Load
Reflected
Ripple
Current
(mA,Typ.)
Max.
Capacitive
Load# (µF)
Efficiency
(%, Typ.)
@Max. Load
WRA0505ZP-3WR2
±5 ±300 ±15 800 2200 75
*WRA0512ZP-3WR2
±12 ±125 ±6 790 1800 76
*WRA0515ZP-3WR2
±15 ±100 ±5 790 1000 76
WRB0505ZP-3WR2
5 600 30 822 4700 73
*WRB0512ZP-3WR2
12 250 13 790 2700 76
*WRB0515ZP-3WR2
5
(4.5-9) 11
15 200 10 790
40 20
2200 76
*WRA1205ZP-3WR2
±5 ±300 ±15 313 2200 80
*WRA1212ZP-3WR2
±12 ±125 ±6 309 1800 81
*WRA1215ZP-3WR2
±15 ±100 ±5 305 1000 82
WRB1205ZP-3WR2
5 600 30 313 4700 80
WRB1212ZP-3WR2
12 250 13 309 2700 81
WRB1215ZP-3WR2
15 200 10 305 2200 82
WRB1224ZP-3WR2
12
(9-18) 20
24 125 7 302
30
1800 83
WRA2405ZP-3WR2
±5 ±300 ±15 155 2200 81
*WRA2412ZP-3WR2
±12 ±125 ±6 153 1800 82
WRA2415ZP-3WR2
±15 ±100 ±5 149 1000 84
WRB2405ZP-3WR2
5 600 30 155 4700 81
WRB2412ZP-3WR2
12 250 13 153 2700 82
WRB2415ZP-3WR2
24
(18-36) 40
15 200 10 149
15
2200 84
*WRA4805ZP-3WR2
±5 ±300 ±15 77 2200 82
*WRA4812ZP-3WR2
±12 ±125 ±6 75 1800 83
*WRA4815ZP-3WR2
±15 ±100 ±5 74 1000 84
WRB4805ZP-3WR2
5 600 30 77 4700 82
*WRB4812ZP-3WR2
12 250 13 75 2700 83
WRB4815ZP-3WR2
48
(36-75) 80
15 200 10 74
5
30
2200 86
Note:1. *Designing. **Input voltage can’t exceed this value, or will cause the permanent damage.
2. # For each output.
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INPUT SPECIFICATIONS
Item Test Conditions Min. Typ. Max. Unit
5VDC input -0.7 -- 12
12VDC input -0.7 -- 25
24VDC input -0.7 -- 50
Input Surge Voltage (1sec. max.)
48VDC input -0.7 -- 100
5VDC input 3.5 4 4.5
12VDC input 4.5 8 9
24VDC input 11 16 18
Start-up Voltage
48VDC input 24 33 36
VDC
Input Filter π Filter
OUTPUT SPECIFICATIONS
Item Test Conditions Min. Typ. Max. Unit
Output Power 0.15 -- 3 W
Output Voltage Accuracy 5% to 100% load -- ±1 ±3
No load output Voltage Accuracy Input voltage range -- ±1.5 ±5
Output Voltage Balance Dual output, balanced loads -- ±0.5 ±1
Line Regulation Full load, Input voltage from low to high -- ±0.2 ±0.5
Load Regulation 5% to 100% load -- ±0.2 ±0.5
%
Transient Recovery Time -- 0.5 2 ms
Transient Response Deviation 25% load step change -- ±2 ±5 %
Temperature Drift 100% load -- ±0.02 ±0.03 %/°C
Ripple* -- 30 45
Noise* 20MHz Bandwidth -- 45 60 mVp-p
Output Power Protection 120 -- -- %
Output Short Circuit Protection Input voltage range Continuous, automatic recovery
Note: 1.Dual output models unbalanced load: ±5%.
2.* Ripple and noise tested by “parallel cable” method. See detailed operation instructions at Testing of Power Converter section, application notes.
COMMON SPECIFICATIONS
Item Test Conditions Min. Typ. Max. Unit
Isolation Voltage Tested for 1 minute and leakage current less than 1 mA
1500 -- -- VDC
Isolation Resistance Test at 500VDC 1000 -- -- MΩ
Isolation Capacitance Input/Output,100KHz/1V -- 120 -- pF
Switching Frequency(PFM mode) 100% load, stand Input voltage -- 200 -- KHz
MTBF MIL-HDBK-217F@25℃ 1000 -- -- K hours
Case Material Aluminum Alloy
Weight -- 14 -- g
ENVIRONMENTAL SPECIFICATIONS
Item Test Conditions Min. Typ. Max. Unit
Storage Humidity Non condensing -- -- 95 %
Operating Temperature Power derating (above85)℃ -40 -- 85
Storage Temperature -55 -- 125
Temp. rise at full load Ta=25°C -- 25 --
Lead Temperature 1.5mm from case for 10 seconds -- -- 300
°C
Cooling Free air convection
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EMC SPECIFICATIONS
CE CISPR22/EN55022 CLASS A(Without External Circuit)/ CLASS B（External Circuit Refer to Figure1- or Figure 3②）
EMI RE CISPR22/EN55022 CLASS A(Without External Circuit)/ CLASS B（External Circuit Refer to Figure1- or Figure 3②）
ESD IEC/EN61000-4-2 Contact ±4KV/ Air ±8KV perf. Criteria B
RS IEC/EN61000-4-3 10V/m perf. Criteria A
IEC/EN61000-4-4 ±2KV perf. Criteria B（External Circuit Refer to Figure1-①）
EFT IEC/EN61000-4-4 ±4KV perf. Criteria B（External Circuit Refer to Figure 3）
Surge IEC/EN61000-4-5 ±2KV perf. Criteria B（External Circuit Refer to Figure1- or Figure ②3）
CS IEC/EN61000-4-6 3 Vr.m.s perf. Criteria A
EMS
Voltage dips、short and
interruptions immunity
IEC/EN61000-4-29 0%-70% perf. Criteria B
EMC RECOMMENDED CIRCUIT
Vin
GND
+Vo
-Vo
(0V)
EUT
LOAD
C2
LDM2
②
C0
TVS
LDM1
MOV
FUSE
①
C1
C3
Vin
GND
+
(Figure1)
参数说明 Vin:5V Vin:12V Vin:24V Vin:48V
FUSE Choose according to practical input current
MOV -- -- 10D560K 10D101K
LDM1 -- -- 56μH
TVS SMCJ13A SMCJ28A SMCJ48A SMCJ90A
C0 680μF/16V 680μF/25V 120μF/50V 120μF/100V
C1 4.7μF /50V 4.7μF /100V
LDM2 12μH
C2 4.7μF /50V 4.7μF /100V
C3 1μF
Note: 1.In Figure 1,part is EMS Rec①ommended external circuit, part is EMI recommended external circuit. Choose according to requirements.②
2. If there is no recommended parameters, the model no require the external component.
EMC RECOMMENDED CIRCUIT PCB LAYOUT DUAL
SINGLE
(Figure 2)
Note: The space between input and output GND (C3) must≥2mm.
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EMC MODULE RECOMMENDED CIRCUIT
EUT
GND-Vo
+Vo
NC
-Vin
NC
+Vin
FT-A/BX1D
Load
-Vo
(0V)
+Vo
Vin
C
+
-Vin
+Vin FUSE
Nominal Voltage=5V/12V/24V, C≥330uF/50V
Nominal Voltage=48V, C≥330uF/100V
(Figure 3)
EMC MODULE RECOMMENDED CIRCUIT PCB LAYOUT
DUAL
SINGLE
(Figure 4)
PRODUCT TYPICAL CURVE
120
100
80
60
40
20
0
-40 0 40 85 105120
O
u
t
p
u
t
P
o
w
e
r
P
e
r
c
e
n
t
(
%
)
Ambient Temp.()℃
Temperature Derating Curve
Safe Operating Area
Efficiency VS Input Voltage curve
(Full Load)
0
10
20
30
40
50
60
70
80
90
100
18 21 24 27 30 33 36
Input Voltage(V)
Efficiency(%)
WRA2415ZP-3WR2
Efficiency VS Input Voltage curve
(Full Load)
0
10
20
30
40
50
60
70
80
90
100
18 21 24 27 30 33 36
Input Voltage(V)
Efficiency(%)
WRB2405ZP-3WR2
Efficiency VS Output Load curve
(Vin=Vin-nominal)
0
10
20
30
40
50
60
70
80
90
100
102030405060708090100
Total Output Current (%)
Efficiency(%)
WRA2415ZP-3WR2
Efficiency VS Output Load curve
(Vin=Vin-nominal)
0
10
20
30
40
50
60
70
80
90
100
102030405060708090100
Total Output Current (%)
Efficiency(%)
WRB2405ZP-3WR2
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OUTLINE DIMENSIONS，RECOMMENDED FOOTPRINT & PACKAGING
2,3
9
11
14
16
NC
GND
+Vo
22,23 Vin
0V
No Pin
10.80
[ 0 . 4 2 5 ]
32.00 [1.260]
20.00 [ 0 . 7 8 7 ]
22.86 [0.900]
15.24 [ 0 . 6 0 0 ]
2.54 [0.100] 5.08 [0.200]
∅0.50 [0.020] ∅1.00 [0.039]
23.50 [0.925]
19.00 [0.748]
10.50 [0.413]
13.00 [0.512]
23 9 11
14162223
23 11
14162223
4.10
[ 0 . 1 6 1 ]
-Vo
GND
+Vo
Vin
0V
0V
∅1.00 [0.039]
23 11
14162223
DUAL
119
FOOTPRINT DETAILS
Note:
Unit:mm[inch]
Pin diameter tolerances: ± 0.10mm[ ± 0.004inch]
General tolerances: ± 0.25mm[ ± 0.010inch]
Note:
Unit :mm[inch]
General tolerances: ± 0.50mm[ ± 0.020inch]
(Bottom View)
(Front View)
NC: No connection
Pin Single Dual
L=530mm[20.866inch] Devices per tube quantity: 15pcs
L=220mm[8.661inch] Devices per tube quantity: 6pcs
Short tube inner package dimensions: L*W*H= 255*170*80mm
Short tube outer package dimensions:
L*W*H= 375*280*270mm
Long tube inner package dimensions: L*W*H= 580*200*100mm
Long tube outer package dimensions(with two inner package boxes):
L*W*H= 600*215*220mm
Long tube outer package dimensions(with three inner package boxes):
L*W*H= 600*215*325mm
(with six inner package boxes)
Note: grid mm
2.54*2.54.
MECHANICAL DIMENSIONS RECOMMENDED FOOTPRINT
TUBE OUTLINE DIMENSIONS
SINGLE
TEST CONFIGURATIONS
Input Reflected-Ripple Current Test Setup
Input reflected-ripple current is measured with an inductor Lin and Capacitor Cin to simulate source impedance.
DC
Cin
Lin
DC
Load
Oscilloscope
Current
Probe
Lin(4.7µH) Cin(220µF, ESR < 1.0Ω at 100 KHz)
DESIGN CONSIDERATIONS
1) Requirement on output load
To ensure this module can operate efficiently and reliably, During operation, the minimum output load could not be less than 5% of the full load.
otherwise ripple maybe increase dramatically. If the actual output power is very small, please c
onnect a resistor with proper resistance at the output end
in parallel to increase the load, suppose to use the resistance of 5% rated power, or use our company’s products with a lower rated output power.
2) Recommended circuit
All the WRA_ZP-3WR2 & WRB_ZP-3WR2 Series have been tested according to the following recommended testing circuit before leaving factory
(see Figure 5).
If you want to further decrease the input/output ripple, you can increase a 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 must less than the Max. Capacitive Load.
General: Cin: 5V&12V 100μF
24V&48V 10μF~47μF
Cout: 10μF/100mA
DC DC
Vin
GND
+Vo
0V
Cin Cout
Vin
GND
+Vo
0V
Cin Cout
DC DC
-Vo
Cout
Dual Output
Single Output
(Figure 5)
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3) Input current
When it is used in unregulated power supply, be sure that the fluctuat
ing range of the power supply and the rippled voltage do not exceed the
module standard. Input current of power supply should afford the flash startup current of this kind of DC/DC module (Figure 6).
General: Vin:5V Ip =1400mA
Vin:12V Ip =620mA
Vin:24V Ip =300mA
Vin:48V Ip =150mA
I
n
p
u
t
C
u
r
r
e
n
t
(
A
)
Input Voltage (V)
Input Voltage
Range
Ip
(Figure 6)
4) Cannot use in parallel and hot swap
Note:
1. Min. load shouldn't be less than 5%, otherwise ripple maybe increase dramatically. Operation under minimum load will not damage the converter,
however, they may not meet all specification listed.
2. Max. Capacitive Load tested at input voltage range and full load.
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 our corporate standards.
5. All characteristics are for listed model, non-standard models may perform differently, please contact our technical person for more detail.
6. Contact us for your specific requirement.
7. Specifications subject to change without prior notice.
MORNSUN Science & Technology Co.,Ltd.
Address: No. 5, Kehui St. 1, Kehui development center, Science Ave., Guangzhou Science City, Luogang district, Guangzhou,P.R.China.
Tel: 86-20-28203030
Fax:86-20-38601272
Http://www.mornsun-power.com
