VRA_D-5W & VRB_D-5W Series
5W, 2:1 WIDE INPUT, ISOLATED & REGULATED
DUAL/SINGLE OUTPUT DC-DC CONVERTER
multi-country patent protection
RoHS
FEATURES
1.5KVDC Input/Output Isolation
Operating Temperature: -40°C to +85°C
Efficiency up to 86%
Metal Shielding Package
No Heat Sink Required
Industry Standard Pinout
MTBF>1,000,000 hours
Continuous Short-Circuit Protection
RoHS Compliance
PRODUCT PROGRAM
Input
Part
Number
VRA1205D-5W
VRA1209D-5W
VRA1212D-5W
VRA1215D-5W
VRA1224D-5W
VRB1205D-5W
VRB1209D-5W
VRB1212D-5W
VRB1215D-5W
VRB1224D-5W
12
9-18
20
Voltage (VDC)
Nominal
Range
Max*
Voltage
(VDC)
±5
±9
±12
±15
±24
5
9
12
15
24
±5
±9
±12
±15
24
18-36
40
±24
5
9
12
15
24
±5
±9
±12
±15
48
36-75
80
±24
5
9
12
15
24
Output
Current (mA)
Max
±500
±278
±210
±166
±105
1000
556
420
330
200
±500
±278
±210
±166
±105
1000
556
420
330
200
±500
±278
±210
±166
±105
1000
556
420
330
200
Min
±50
±27
±21
±17
±10
100
55
42
33
20
±50
±27
±21
±17
±10
100
55
42
33
20
±50
±55
±21
±17
±10
100
55
42
33
20
77
80
82
80
81
78
80
82
82
83
80
82
83
83
84
80
82
84
84
85
82
81
85
85
86
82
81
85
85
86
Efficiency
(%, Typ)
APPLICATIONS
The VRA_D-5W & VRB_D-5W 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:
≤
2:1);
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.
VRA2405D-5W
VRA2405D-5W
VRA2412D-5W
VRA2415D-5W
VRA2424D-5W
VRB2405D-5W
VRB2409D-5W
VRB2412D-5W
VRB2415D-5W
VRB2424D-5W
VRA4805D-5W
VRA4809D-5W
VRA4812D-5W
VRA4815D-5W
VRA4824D-5W
VRB4805D-5W
VRB4809D-5W
VRB4812D-5W
VRB4815D-5W
Rated Power
Package Style
Output Voltage
Input Voltage
Product Series
MODEL SELECTION
VRA2405D-5W
VRB4824D-5W
*Input voltage can’t exceed this value, or will cause the permanent damage.
Note:The load shouldn't be less than 10%,otherwise ripple will increase dramatically.
COMMON SPECIFICATION
Item
Storage Humidity
Operating Temperature
Storage Temperature
-40
-55
1.5mm from case for 10 seconds
30
500
Free Air Convection
Aluminous alloy
Continuous, automatic recovery
1000
15
VRA_D-5W & VRA_D-5W
B/2-2008
Test conditions
Min
Typ
Max
95
85
125
300
Units
%
MORNSUN Science& Technology co.,Ltd.
Address: 2th floor 6th building, Huangzhou
Industrial District, Guangzhou, China
Tel: 86-20-38601850
Fax: 86-20-38601272
Http://www.mornsun-power.com
Lead Temperature
Temp. Rise at Full Load
No-load Power Consumption
Cooling
Case Material
Short Circuit Protection
MTBF
Weight
°C
mW
K hours
g
Page 1 of 2
MORNSUN reserves the copyright
Specifications subject to change without notice.
ISOLATION SPECIFICATIONS
Item
Isolation voltage
Isolation resistance
Isolation capacitance
Test conditions
Flash tested for 60 seconds
Test at 500VDC
Input/Output
Min
1500
1000
150
Typ
Max
Units
VDC
MΩ
pF
APPLICATION NOTE
Recommended Circuit
All the VRA_D-5W Series have been tested
according to the following recommended testing
circuit before leaving factory. This series should
be tested under load. Never be tested under no
load (see Figure 1 ).
Min
Typ
±1
±3
±0.5
±0.2
0.02
30
100
50
150
Max
5
±3
±5
±2*
±0.5
%/°C
mVp-p
GND
OUTPUT SPECIFICATIONS
Item
Output Power
Positive Voltage Accuracy
Load Regulation
Temperature Drift (Vout)
Ripple**
Noise**
Test Conditions
See products program
Refer to recommended circuit
From 10% To 100% load
Refer to recommended circuit
20MHz bandwidth
20MHz bandwidth
Units
W
Dual Output
Vin
Ci n
+Vout
DC
DC
0V
-Vout
Negative Voltage Accuracy Refer to recommended circuit
Line Regulation(at full load) Input voltage from low to high
%
GND
Single Output
Vin
Cin
+Vout
DC
DC
0V
(Figure 1)
If you want to further decrease the output ripple,
you can increase capacitance properly or choose
capacitors
with
low
ESR.
However,
the
capacitance should not be too high. (Table 1).
Extemal Capacitor Table(Table 1)
Vin
Cin
Vout
Cout
12V
100uF
±5V
100uF
24V
100uF
±12V
each 1A
48V
100uF
±15V
Current
--
--
±24V
Switching Frequency
100% load, nominal Input voltage
300
KHz
*
Dual output models unbalanced load:
±5%.
**
Test ripple and noise by
“parallel
cable” method. See detailed operation instructions at Testing of Power
Converter section, application notes.
Note:
1. All specifications measured at T
A
=25°C, humidity<75%, nominal input voltage and rated output load
unless otherwise specified.
2. See below recommended circuits for more details.
TYPICAL CHARECTERISTICS
Temperature Derating Graph
Operating Temp.(
C
)
OUTLINE DIMENSIONS & PIN CONNECTIONS
First Angle Projection
11.21
(0.441)
(0.400) (0.400)
10.16 10.16
27.50 (1.083)
RECOMMENDED FOOTPRINT
Top
view,grid:2.54mm(0.1inch),
diameter:1.20mm(0.047inch)
Single Output
Dual Output
5.08
(0.200)
20.32 (0.800)
27.50 (1.083)
0.50
9.70
(0.020) (0.382)
4.10
3.59
(0.141)
FOOTPRINT DETAILS
17.00
(0.699)
Pin
1
2
3
4
5
Single
GND
Vin
+Vo
NO Pin
0V
Dual
GND
Vin
+Vo
0V
-Vo
Note:
Unit:mm(inch)
Pin section:0.80mm(0.031inch)
Pin section tolerances:
+
0.05mm(
+
0.002inch)
General tolerances:
+
0.25mm(
+
0.010inch)
MORNSUN reserves the copyright
Specifications subject to change without notice.
VRA_D-5W & VRA_D-5W
B/2-2008
Page 2 of 2
PCB Design
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