VRA_LD-30WR2 SERIES
30W, WIDE INPUT, ISOLATED & REGULATED
DUAL OUTPUT DC-DC CONVERTER
FEATURES
●
Efficiency up to 89%
●
2:1 wide input voltage range
●
Operating temperature range:
-40°C ~ +85°C
●
1.5KVDC isolation
●
Output short circuit , over current and over voltage
protection
●
Meet CISPR22/EN55022 CLASS A
●
Industry standard pinout
●
Inverse polarity protection for A2S(chassis
mounting)and A4S(DIN-Rail mounting)
APPLICATION
Patent Protected
RoHS
The VRA_LD-30WR2 series offer 30W of output, with 2:1 wide input
voltage of 18-36VDC, 36-75VDC and features 1500VDC isolation, over
current and short-circuit protection etc, as well as six-sided metal
shielding. All models are particularly suited to industrial control, electric
power, instrumentation, tele-communications etc.
PART NUMBER SYSTEM
VRA2405LD-30WR2
Rated Power
Package Style
Output Voltage
Input Voltage
Product Series
SELECTION GUIDE
Input Voltage (VDC)
Model Number
①
Nominal
(Range)
Max
②
Output
Voltage
(VDC)
±5
±9
Output Current (mA) Input Current (mA)(typ.)
Max.
±3000
±1667
±1250
±1000
±625
±3000
±1250
±1000
±625
Min.
±150
±83
±63
±50
±32
±150
±63
±50
±32
@
Max.load
1460
1440
1440
1440
1440
730
720
720
720
reflection
Max.
ripple Current
Capacitor
@ No load
(mA,typ.)
Load (max,µF)
120
20
20
20
20
80
20
20
20
20
10
10
10
10
20
10
10
10
±3000
±470
±470
±470
±300
±3000
±470
±470
±300
Efficiency
(%, typ.)
@ Max. load
88
88
88
89
89
88
89
89
89
③
VRA2405LD-30WR2
VRA2409LD-30WR2
VRA2412LD-30WR2
VRA2415LD-30WR2
VRA2424LD-30WR2
VRA4805LD-30WR2
VRA4812LD-30WR2
VRA4815LD-30WR2
VRA4824LD-30WR2
48
(36-75)
80
24
(18-36)
40
±12
±15
±24
±5
±12
±15
±24
Note:
①
series with suffix
“H”
are heat sink mounting, for example VRA2405LD-30WHR2. series with suffix "A2S" are chassis mounting, with suffix "A4S" are DIN-Rail
mounting, for example VRA2405LD-30WR2A2S is chassis mounting, VRA2405LD-30WR2A4S is DIN-Rail mounting. If the application has a higher requirement for
heat dissipation, you can choose modules with heat sink.
②Absolute
maximum rating without damage on the converter, but it isn't recommended.
③The
efficiency of "A2S" and "A4S" is approx. 2% lower for the protection of inverse polarity.
INPUT SPECIFICATIONS
Item
Input Surge Voltage
(1sec. max.)
Test conditions
24VDC Input Models
48VDC Input Models
24VDC Input Models
Start-up Voltage
48VDC Input Models
Under Voltage Shutdown
Start-up Time
24VDC Input Models
48VDC Input Models
Nominal input & constant resistance load
Min.
-0.7
-0.7
--
--
16
32
--
Typ.
--
--
17.8
35.8
--
--
10
Max.
50
100
VDC
18
36
--
--
--
ms
VDC
Unit
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VRA_LD-30WR2
2013.09.24-A/0
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Models ON
Ctrl
*
Input Filter
*The Ctrl control pin voltage is refer to GND.
Ctrl open or connect TTL high level (2.5-12VDC)
Ctrl connect GND or low level (0-1.2VDC)
--
1
Pi Filter
--
mA
Models OFF
Input current at shutdown
OUTPUT SPECIFICATIONS
Item
Positive Output Voltage Accuracy
Negative Output Voltage Accuracy
Output Voltage Balance
Line Regulation
Cross Regulation
Load Regulation
Transient Recovery Time
Transient Response Deviation
Temperature Drift
Ripple & Noise *
Dual output，Balance load
Input voltage from low to high at 100% load
Dual output,main output 50% load,
Supplement output from 10% to 100% load
From 5% to 100% load Nominal input
25% load step change
100% load
20MHz bandwidth
5VDC output
9VDC output
Over Voltage Protection
Full input voltage
12VDC output
15VDC output
24VDC output
Over Current Protection
Short Circuit Protection
Full input voltage
--
--
--
--
--
--
--
--
--
--
--
--
--
--
110
Test conditions
Min.
Typ.
±1
±0.5
±0.2
±5
±0.5
300
±3
±0.02
50
6
10.8
15
18
28
130
Max.
±3
±1
±0.5
±7
±1
500
±5
--
100
--
--
--
--
--
160
%
VDC
µs
%
%/°C
mVp-p
%
Unit
Hiccup, automatic recovery
Note: *Ripple and noise tested by
“parallel
cable” method. See detailed operation instructions at
DC-DC Application Notes
.
COMMON SPECIFICATIONS
Item
Isolation Voltage
Isolation Resistance
Isolation Capacitance
Switching Frequency
MTBF
Case Material
PCB mounting（Without heat sink）
PCB mounting（With heat sink）
Size
A2S chassis mounting（Without heat sink）
A4S DIN-Rail mounting（Without heat sink）
A2S chassis mounting（With heat sink）
A4S DIN-Rail mounting（With heat sink）
PCB mounting（Without heat sink）
PCB mounting（With heat sink）
Weight
A2S chassis mounting（Without heat sink）
A4S DIN-Rail mounting（Without heat sink）
A2S chassis mounting（With heat sink）
A4S DIN-Rail mounting（With heat sink）
--
--
--
--
--
--
Test conditions
Input -Output ,tested for 1 minute, leakage current less than 1 mA
Input -Output, test at 500VDC
Input -Output,100KHz/0.1V
PWM mode
MIL-HDBK-217F@25℃
Min.
1500
1000
--
--
1000
Typ.
--
--
2000
400
--
50.8x25.4x11.8
50.8x25.4x16.3
76.0x31.5x21.2
76.0x31.5x25.8
76.0x31.5x25.1
76.0x31.5x29.7
24
37
46
66
59
79
--
--
--
--
--
--
g
mm
Max.
--
--
--
--
--
Unit
VDC
MΩ
pF
KHz
K hours
Aluminum Alloy
ENVIRONMENTAL SPECIFICATIONS
Item
Storage Humidity
Operating Temperature
Storage Temperature
The Max. Case Temperature
Soldering Temperature
Cooling
Shake
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VRA_LD-30WR2
2013.09.24-A/0
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Test conditions
Non condensing
See Temperature Derating Curve（see Figure 3）
Min.
5
-40
-55
--
--
Typ.
--
--
--
--
--
Max.
95
85
125
105
300
Unit
%
Operating Temperature curve range
1.5mm from case for 10 seconds
°C
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
IEC/EN61000-4-29
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
±4KV
10V/m
±2KV
±2KV
3Vr.m.s
0%-70%
（External
Circuit Refer to Figure1-①）
（External
Circuit Refer to Figure1-①）
perf. Criteria B
perf. Criteria A
perf. Criteria B
perf. Criteria B
perf. Criteria A
perf. Criteria B
EMC RECOMMENDED CIRCUIT
Recommended external circuit parameters:
Model
VRA24_LD-30WR2
VRA48_LD-30WR2
FUSE
MOV
LDM1
TVS
C0
(Figure 1)
Note: 1. In Figure 1, part① is EMS recommended external circuit, part② is EMI recommended
external circuit. Choose according to requirements.
2. FL2D-30-102 is the EMC auxiliary component of our company.
Choose according to practical input current
S14K35
56μH
SMCJ48A
330μF/50V
4.7uF/50V
1nF/2KV
S14K60
56μH
SMCJ90A
330μF/100V
2.2uF/100V
1nF/2KV
C1,C2
LCM1
CY1,CY2
1mH (FL2D-30-102)
EMC RECOMMENDED CIRCUIT PCB LAYOUT
(Figure 2)
EMI TEST WAVEFORM (CLASS B APPLICATION CIRCUIT)
VRA2405LD-30WR2
CE（Positive line）
VRA2405LD-30WR2
CE（Negative line）
VRA2405LD-30WR2
RE（Horizontal）
VRA2405LD-30WR2
RE（Vertical）
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VRA_LD-30WR2
2013.09.24-A/0
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PRODUCT TYPICAL PERFORMANCE CURVE
Temperature derating curve
(Output Voltage≤5V)
120
Output Power Perent (%)
(Output Voltage＞5V)
120
Output Power Perent (%)
100
80
W ithout he atsink
W ith heatsink
100
80
W ithout heatsink
W ith heatsink
60
S afe O pe ra ting A rea
60
Safe Operating Area
40
20
0
-40
0
40 5060
85
120
40
20
0
-40
0
40 5565
85
120
Ope ra ting Tem p( C )
Operating Temp( C )
(Figure 3)
PCB MOUNTING(WITHOUT HEATSINK) OUTLINE DIMENSIONS,RECOMMENDED FOOTPRINT
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VRA_LD-30WR2
2013.09.24-A/0
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PCB MOUNTING (With heatsink)OUTLINE DIMENSIONS
VRA_LD-30WR2A2S CHASSIS MOUNTING OUTLINE DIMENSIONS
Footprint Details
Pin
Function
1
Ctrl
2
GND
3
Vin
4
-Vo
5
0V
6
+Vo
VRA_LD-30WR2A4S DIN-RAIL MOUNTING OUTLINE DIMENSIONS
DIN-rail modules are fitting to TS35 rails
Footprint Details
Pin
Function
1
Ctrl
2
GND
3
Vin
4
-Vo
5
0V
6
+Vo
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MORNSUN
VRA_LD-30WR2
2013.09.24-A/0
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