VRB_LD-30WR2 SERIES
30W, WIDE INPUT, ISOLATED & REGULATED
SINGLE OUTPUT DC-DC CONVERTER
FEATURES
●
Efficiency up to 89%
●
2:1 wide input voltage range
●
1.5KVDC isolation
●
Operating temperature range: -40°C ~ +85°C
●
Output over current protection, output over
voltage protection, input under voltage
protection and output short circuit
protection(automatic recovery)
●
Six-sided metal shield, Industry standard
pinout
●
Inverse polarity protection for A2S（chassis
mounting）and A4S（DIN-Rail mounting）
●
Meet EN60950 and UL60950
Patent Protected
RoHS
PART NUMBER SYSTEM
VRB2405LD-30WR2
R ate d Po wer
Pa cka ge St yle
O ut pu t Vo lta ge
I np ut Vo ltag e
Pr od uc t Ser ies
APPLICATION
The VRB_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. It offers good EMC
performance,meet
EN60950
and
UL60950
standards.All
models are particularly suited to industrial control, electric
power, instrumentation, tele-communications etc.
SELECTION GUIDE
Input Voltage (VDC)
Approval
Model Number
①
VRB2403LD-30WR2
Nominal
(Range)
Max.
②
Output
Voltage
(VDC)
3.3
5
Output Current (mA)
Max.
6000
6000
3333
2500
2000
1250
6000
6000
2500
2000
1250
Min.
600
600
333
250
200
125
600
600
250
200
125
Input Current
(mA)(typ.)
@Max.
@ No
load
load
948
1420
1420
1420
1404
1404
474
710
702
702
710
120
120
20
20
20
20
80
80
20
20
20
reflection
ripple
Current
(mA,typ.)
48
73
72
72
72
72
25
36.5
36
36
36
Max.
Capacitor
Load
(max,µF)
6800
6800
680
680
680
470
6800
6800
680
680
470
Efficiency
③
(%, typ.)
@ Max.load
87
88
88
88
89
89
87
88
89
89
88
CE
VRB2405LD-30WR2
VRB2409LD-30WR2
24
(18-36)
40
9
12
15
24
3.3
5
UL/CE
VRB2412LD-30WR2
VRB2415LD-30WR2
VRB2424LD-30WR2
VRB4803LD-30WR2
CE
VRB4805LD-30WR2
VRB4812LD-30WR2
VRB4815LD-30WR2
VRB4824LD-30WR2
48
(36-75)
80
12
15
24
Note:
①
Series with suffix
“H”
are heat sink mounting, for example VRB2405LD-30WHR2. series with suffix "A2S" are chassis mounting, with suffix "A4S" are DIN-Rail
mounting, for example VRB2405LD-30WR2A2S is chassis mounting, VRB2405LD-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
48VDC Input Models
Min.
-0.7
-0.7
--
--
Typ.
--
--
17.8
35.8
Max.
50
100
VDC
Start-up Voltage
18
36
Unit
The copyright and authority for the interpretation of the products are reserved by
MORNSUN
VRB_LD-30WR2
2013.12.11-A/3
Page 1 of 8
24VDC Input Models
Under Voltage Shutdown
48VDC Input Models
Start-up Time
Ctrl
*
Input Filter
*The Ctrl control pin voltage is refer to GND.
16
32
--
--
--
10
--
VDC
--
--
ms
Nominal input & constant resistance load
Models ON
Models OFF
Input current at shutdown
Ctrl open or connect TTL high level (2.5-12VDC)
Ctrl connect GND or low level (0-1.2VDC)
--
1
Pi Filter
--
mA
OUTPUT SPECIFICATIONS
Item
Output Voltage Accuracy
Line Voltage Regulation
Load Regulation
Transient Recovery Time
Transient Response Deviation
Temperature Drift
Ripple & Noise *
Output Voltage Range (Trim)
3.3VDC output
5VDC output
Over Voltage Protection
Full input voltage
9VDC output
12VDC output
15VDC output
24VDC output
Over Current Protection
Short Circuit Protection
Full input voltage
Input voltage from low to high at 100% load
From 10% to 100% load Nominal input
25% load step change
100% load
20MHz bandwidth
Test conditions
Min.
--
--
--
--
--
--
--
--
--
--
--
--
--
--
120
Typ.
±1
±0.2
±0.5
300
±3
±0.02
50
±10%Vo
3.96
6
10.8
15
18
28
130
Max.
±3
±0.5
±1
500
±5
--
120
--
--
--
--
--
--
--
150
%
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
Safety approvals
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℃
VRB2412LD-30WR2
Others
Min.
1500
1000
--
--
1000
Typ.
--
--
2000
300
--
EN60950
Aluminum Alloy
50.8x25.4x11.8
50.8x25.4x16.3
76.0x31.5x21.2
76.0x31.5x25.8
76.0x31.5x25.1
76.0x31.5x29.7
22
35
44
64
57
77
--
--
--
--
--
--
g
mm
Max.
--
--
--
--
--
Unit
VDC
MΩ
pF
KHz
K hours
UL60950, EN60950
ENVIRONMENTAL SPECIFICATIONS
Item
Storage Humidity
Operating Temperature
Storage Temperature
Test conditions
Non condensing
See Temperature Derating Curve（see Figure 3）
Min.
5
-40
-55
Typ.
--
--
--
2013.12.11-A/3
Max.
95
85
125
Unit
%
°C
The copyright and authority for the interpretation of the products are reserved by
MORNSUN
VRB_LD-30WR2
Page 2 of 8
The Max. Case Temperature
Soldering Temperature
Cooling
Shake
Operating Temperature curve range
1.5mm from case for 10 seconds
--
--
--
--
105
300
°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
L DM1
L CM1
C Y1
V IN
+ Vo
Recommended external circuit parameters:
Model
VRB24_LD-30WR2
VRB48_LD-30WR2
FUSE
MOV
LO AD
0V
FU SE
Vi n
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
MO V
G ND
TVS
C1
C0
C2
EUT
GND
LDM1
TVS
C0
C1,C2
LCM1
CY1,CY2
①
②
C Y2
(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.
1mH (FL2D-30-102)
EMC RECOMMENDED CIRCUIT PCB LAYOUT
(Figure 2)
EMI TEST WAVEFORM (CLASS B APPLICATION CIRCUIT)
VRB2405LD-30WR2
CE（Positive line）
VRB2405LD-30WR2
CE（Negative line）
The copyright and authority for the interpretation of the products are reserved by
MORNSUN
VRB_LD-30WR2
2013.12.11-A/3
Page 3 of 8
VRB4815LD-30WR2
CE（Positive line）
VRB4815LD-30WR2
CE（Negative line）
VRB2405LD-30WR2
RE（Horizontal）
VRB2405LD-30WR2
RE（Vertical）
VRB4815LD-30WR2
RE（Horizontal）
VRB4815LD-30WR2
RE（Vertical）
PRODUCT TYPICAL PERFORMANCE CURVE
Temperature derating curve
(Output Voltage≤5V)
(Output Voltage＞5V)
120
O utpu t P ow e r P eren t (% )
O u tp u t Po w er P erent (% )
100
80
Without heatsink
With heatsink
60
Safe Operating Area
40
20
0
-40
0
40 55 65
85
120
Operating Temp( C)
Operating Temp( C )
(Figure 3)
The copyright and authority for the interpretation of the products are reserved by
MORNSUN
VRB_LD-30WR2
2013.12.11-A/3
Page 4 of 8
Efficiency VS Input Voltage curve
(Full Load)
VRB2405LD-30WR2
100
95
90
85
80
75
70
65
60
55
50
18 20 22 24 26 28 30 32 34 36
Input Voltage(V)
Efficiency VS Output Load curve
(Vin=Vin-nominal)
VRB2405LD-30WR2
100
90
80
70
60
50
40
30
20
10
0
10 20 30 40 50 60 70 80 90 100
Total Output Current (%)
Efficiency(%)
PCB MOUNTING(WITHOUT HEATSINK) OUTLINE DIMENSIONS,RECOMMENDED FOOTPRINT
PCB MOUNTING (WITH HEATSINK)OUTLINE DIMENSIONS
The copyright and authority for the interpretation of the products are reserved by
MORNSUN
VRB_LD-30WR2
Efficiency(%)
2013.12.11-A/3
Page 5 of 8
DSP 与 ARM 处理器
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
