VRA_LD-15WR2 & VRB_LD-15WR2 SERIES
15W,WIDE
INPUT, ISOLATED & REGULATED
DUAL/SINGLE OUTPUT DC-DC CONVERTER
Patent Protection RoHS
PART NUMBER SYSTEM
VRB2405LD-15WR2
Rated Power
Packag e Style
Output Voltag e
Inpu t Voltage
Product Serie s
FEATURES
●
Efficiency up to 90%
●
2:1 wide input voltage range
●
Low temperature rise
●
Short circuit protection
●
1.5KVDC isolation
●
Operating temperature range:
-40°C ~ +85°C
●
Six-sided metal shield
●
Industry standard pinout
●
Industrial level specifications
●
Meet CISPR22/EN55022 CLASS A
APPLICATION
VRA_LD-15WR2 & VRB_LD-15WR2 series are
applied to wide voltage range input situation such as
data transmission device
、
battery power supply
device、
telecommunication device、
distributed power
supply system
、remote
control system
、industrial
robot system etc.
SELECTION GUIDE
Input Voltage(VDC)
Model Number
*VRA1205LD-15WR2
*VRA1212LD-15WR2
*VRA1215LD-15WR2
*VRA1224LD-15WR2
VRB1203LD-15WR2
VRB1205LD-15WR2
VRB1212LD-15WR2
VRB1215LD-15WR2
VRB1224LD-15WR2
*VRA2405LD-15WR2
*VRA2412LD-15WR2
*VRA2415LD-15WR2
*VRA2424LD-15WR2
VRB2403LD-15WR2
VRB2405LD-15WR2
VRB2412LD-15WR2
VRB2415LD-15WR2
VRB2424LD-15WR2
*VRA4805LD-15WR2
*VRA4812LD-15WR2
*VRA4815LD-15WR2
*VRA4824LD-15WR2
VRB4803LD-15WR2
VRB4805LD-15WR2
VRB4812LD-15WR2
VRB4815LD-15WR2
*VRB4824LD-15WR2
48
(36-75)
80
24
(18-36)
40
12
(9-18)
20
Nominal
(Range)
Max**
Output
Voltage
(VDC)
±5
±12
±15
±24
3.3
5
12
15
24
±5
±12
±15
±24
3.3
5
12
15
24
±5
±12
±15
±24
3.3
5
12
15
24
Output Current (mA)
Max.
±1500
±625
±500
±313
4000
3000
1250
1000
625
±1500
±625
±500
±313
4000
3000
1250
1000
625
±1500
±625
±500
±313
4000
3000
1250
1000
625
Min.
±75
±32
±25
±16
200
150
63
50
32
±75
±32
±25
±16
200
150
63
50
32
±75
±32
±25
±16
200
150
63
50
32
Input Current (mA)(typ.)
@Max.
Load
1453
1420
1420
1420
1465
1405
1405
1405
1389
727
710
710
710
625
695
703
695
695
363
355
355
355
316
360
352
348
352
@No Load
30
25
25
20
65
60
25
25
30
25
20
20
20
35
35
20
20
25
20
15
15
15
35
35
25
15
15
30
Reflected
Ripple
Current
(mA,typ.)
Max.
Capacitive
#
Load (µF)
1020
495
165
200
10500
4020
1035
705
250
1020
495
165
200
10500
4020
1035
705
250
1020
495
165
200
10500
4020
1035
705
250
Efficiency
(%, typ.)
@Max.
Load
86
88
88
88
87
89
89
89
90
86
88
88
88
88
90
89
90
90
86
88
88
88
87
87
89
90
89
Note:1. *Designing. **Input voltage can’t exceed this value, or will cause the permanent damage.
#
2. For each output.
3. Add suffix
“H”
for heat sink mounted, for example VRA2405LD-15WHR2.
The copyright and authority for the interpretation of the products are reserved by MORNSUN VRA_LD-15W R2 & VRB_LD-15WR2
A/2-2012
Page 1of 7
INPUT SPECIFICATIONS
Item
Test Conditions
12VDC input
Input Surge Voltage (1sec.max.)
24VDC input
48VDC input
12VDC input
Start-up Voltage
24VDC input
48VDC input
12VDC input
Under Voltage Shutdown
24VDC input
48VDC input
Start-up Time
Nominal input& constant resistance load
Models ON
Ctrl
*
Min.
--
--
--
--
--
--
7.5
16
32
--
Typ.
--
--
--
--
--
--
--
--
--
10
Max.
25
50
100
9
17.8
35.8
--
--
--
--
Unit
VDC
ms
Ctrl open or connect TTL high level (2.5-12VDC)
Ctrl connect GND or low level (0-1.2VDC)
--
1
π
Filter
--
mA
Models OFF
Input current (Models OFF)
Input Filter
Note: *The CTRL control pin voltage is refer to GND.
OUTPUT SPECIFICATIONS
Item
Output Power
Positive Voltage Accuracy
Negative Voltage Accuracy
Output Voltage Balance
Line Regulation
Load Regulation
Cross Regulation
Transient Recovery Time
Transient Response Deviation
Temperature Drift
Ripple & Noise*
Trim
3.3VDC output
5VDC output
Output Over Voltage Protection
12VDC output
15VDC output
24VDC output
Over Current Protection
Short Circuit Protection
Input voltage range
Dual output, balanced loads
Full load, input voltage from low to high
10% to 100% load
Dual output, main output 50% load,
Supplement output from 10% to 100% load
25% load step change
Full load
20MHz bandwidth
Refer to recommended circuit
Test Conditions
Min.
0.75
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
Typ.
--
±1
±0.5
±0.2
±0.5
--
300
±3
±0.02
70
±10%
3.9
6.2
15
18
30
150
Max.
15
±3
±1
±0.5
±1
±5
500
±5
--
100
--
--
--
--
--
--
--
%
VDC
µs
%
%/°C
mVp-p
%
Unit
W
Hiccup, Continuous, automatic recovery
Note: * Ripple and noise tested by
“parallel
cable” method. See detailed operation instructions at Testing of Power Converter section, application notes.
COMMON SPECIFICATIONS
Item
Isolation Voltage
Isolation Resistance
Isolation Capacitance
Switching Frequency
MTBF
Case Material
Weight
Without heatsink
With heatsink
--
--
MIL-HDBK-217F@25℃
Test Conditions
Tested for 1 minute and leakage current less than 1 mA
Test at 500VDC
Input/Output,100KHz/0.1V
24VDC output
Others
Min.
1500
1000
--
--
--
1000
Typ.
--
--
2000
1000
300
--
Max.
--
--
--
--
--
--
KHz
K hours
Unit
VDC
MΩ
pF
Aluminum Alloy
28
36
--
--
A/2-2012
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The copyright and authority for the interpretation of the products are reserved by MORNSUN VRA_LD-15W R2 & VRB_LD-15WR2
ENVIRONMENTAL SPECIFICATIONS
Item
Storage Humidity
Operating Temperature
Storage Temperature
The Max. Case Temperature
Lead Temperature
Cooling
Shake
Operating Temperature curve range
1.5mm from case for 10 seconds
Test Conditions
Non condensing
See Temperature Derating Curve
Min.
5
-40
-55
--
--
Typ.
--
--
--
--
--
Max.
95
85
125
105
300
°C
Unit
%
Free air convection
10-55Hz, 10G, 30 Min. along X, Y and Z
EMC SPECIFICATIONS
EMI
CE
RE
ESD
RS
EFT
EMS
Surge
CS
Voltage dips、short and
interruptions immunity
CISPR22/EN55022
CISPR22/EN55022
IEC/EN61000-4-2
IEC/EN61000-4-3
IEC/EN61000-4-4
IEC/EN61000-4-5
IEC/EN61000-4-6
CLASS A（Without External Circuit）/ CLASS B（External Circuit Refer to Figure1-②）
CLASS A（Without External Circuit）/ CLASS B（External Circuit Refer to Figure1-②）
Contact
10V/m
±2KV
±2KV
3 Vr.m.s
±4KV
perf. Criteria B
perf. Criteria A
perf. Criteria B（External Circuit Refer to Figure1-①）
perf. Criteria B（External Circuit Refer to Figure1-①）
perf. Criteria A
perf. Criteria B
IEC/EN61000-4-29 0%-70%
EMC RECOMMENDED CIRCUIT
Recommended external circuit parameters:
FU SE
V in
+
MOV
GND
TVS
C0
C1
LDM1
LDM2
C2
Vin
+Vo
EUT
GN D
-Vo
(0V)
LOAD
①
②
C3
(Figure1)
Note: 1. In Figure 1,part①is EMS Recommended external circuit, part②is
EMI recommended external circuit. Choose according to
requirements.
2. If there is no recommended parameters, the model no require the
external component.
Model
FUSE
MOV
LDM1
TVS
C0
C1
LDM2
C2、
C3
Vin:12V
Vin:24V
Vin:48V
Choose according to practical input current
--
10D560
10D101
--
56μH
SMCJ28A
SMCJ48A
SMCJ90A
680μF/25V
120μF/50V
120μF/100V
1μF /50V
1μF /50V
1μF /100V
4.7μH
1000pF/2KV
EMC RECOMMENDED CIRCUIT PCB LAYOUT
(Figure 2)
EMC TEST WAVEFORM(CLASS B TEST CIRCUIT)
VRA2405LD-15WR2
CE (Positive line)
VRA2405LD-15WR2
CE (Negative line)
A/2-2012
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The copyright and authority for the interpretation of the products are reserved by MORNSUN VRA_LD-15W R2 & VRB_LD-15WR2
VRA4815LD-15WR2
CE (Positive line)
VRA4815LD-15WR2
CE (Negative line)
VRA2405LD-15WR2
RE(Horizontal)
VRA2405LD-15WR2
RE(Vertical)
VRA4815LD-15WR2
RE(Horizontal)
VRA4815LD-15WR2
RE(Vertical)
VRB2405LD-15WR2
CE (Positive line)
VRB2405LD-15WR2
CE (Negative line)
VRB4815LD-15WR2
CE (Positive line)
VRB4815LD-15WR2
CE (Negative line)
VRB2405LD-15WR2
RE(Horizontal)
VRB2405LD-15WR2
RE(Vertical)
A/2-2012
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The copyright and authority for the interpretation of the products are reserved by MORNSUN VRA_LD-15W R2 & VRB_LD-15WR2
VRB4815LD-15WR2
RE(Horizontal)
VRB4815LD-15WR2
RE(Vertical)
PRODUCT TYPICAL CURVE
(Output Voltage≤5V)
120
Output Power Percent (%)
(Output Voltage >5V)
120
Output Power Percent (%)
With heatsink
100
80
60
Safe Operating Area
Without heatsink
100
80
60
40
20
0
-40
0
40
71 81 85
Without heatsink
Safe Operating Area
With heatsink
40
20
0
-40
0
40
65 75 85
120
Operating Temp(°C)
120
Operating Temp(°C)
Efficiency VS Input Voltage curve
VRA1205LD-15WR2
(Full Load)
VRB1205LD-15WR2
100
90
80
Efficiency VS Output Load curve
VRA1205LD-15WR2
(Vin=Vin-nominal)
VRB1205LD-15WR2
100
90
80
Efficiency(%)
Efficiency(%)
9
10
11
12
13
14
15
16
17
18
70
60
50
40
30
20
10
0
70
60
50
40
30
20
10
0
10
20
30
40
50
60
70
80
90
100
Input Voltage(V)
Total Output Current (% )
Efficiency VS Input Voltage curve
VRA2405LD-15WR2
(Full Load)
VRB2405LD-15WR2
100
90
80
Efficiency VS Output Load curve
VRA2405LD-15WR2
(Vin=Vin-nominal)
VRB2405LD-15WR2
100
90
80
Efficiency(%)
70
60
50
40
30
20
10
0
18
20
22
24
26
28
30
32
34
36
Efficiency(%)
70
60
50
40
30
20
10
0
10
20
30
40
50
60
70
80
90
100
Input Voltage(V)
Total Output Current (% )
The copyright and authority for the interpretation of the products are reserved by MORNSUN VRA_LD-15W R2 & VRB_LD-15WR2
A/2-2012
Page 5of 7
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