WRD_S-1W & WRD_S-2W Series
1W & 2W, WIDE INPUT, ISOLATED & REGULATED
TWIN OUTPUT SIP DC-DC CONVERTER
multi-country patent protection
RoHS
FEATURES
Wide (2:1) Input Range
Miniature SIP Package
I/0 Isolation 1000VDC
Short Circuit Protection(automatic recovery)
External On/Off control
Internal SMD construction
Operating Temperature: -40°C to +85°C
RoHS Compliance
PRODUCT PROGRAM
Input
Part
Number
WRD050505S-1W
WRD050909S-1W
WRD051212S-1W
WRD051515S-1W
WRD050505S-2W
WRD050909S-2W
WRD051212S-2W
WRD051515S-2W
WRD120505S-1W
WRD120909S-1W
WRD121212S-1W
WRD121515S-1W
WRD120505S-2W
WRD120909S-2W
WRD121212S-2W
WRD121515S-2W
WRD240505S-1W
WRD240909S-1W
WRD241212S-1W
WRD241515S-1W
WRD240505S-2W
WRD240909S-2W
WRD241212S-2W
WRD241515S-2W
WRD480505S-1W
WRD480909S-1W
24
18-36
40
10
12
9.0-18
22
20
5
4.5-9.0
11
40
Voltage (VDC)
Nominal Range
No-load Voltage
Max* (mA)(Typ) (VDC)
5
9
12
15
5
9
12
15
5
9
12
15
5
9
12
15
5
9
12
15
5
9
12
15
5
9
12
48
36-72
80
5
15
5
9
12
15
Output
Current (mA)
Max
100
55
42
33
200
111
83
67
100
55
42
33
200
111
83
67
100
55
42
33
200
111
83
67
100
55
42
33
200
111
83
67
Min
10
5
4
3
20
11
8
7
10
5
4
3
20
11
8
7
10
5
4
3
20
11
8
7
10
5
4
3
20
11
8
7
70
71
73
72
67
71
72
73
73
76
78
78
75
77
80
79
76
77
78
77
76
78
80
79
73
75
77
77
75
78
79
78
Efficiency
(%, Typ)
APPLICATIONS
The WRD_S-1W 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 & Vout1 and Vout2 (Isolation Voltage
≤1000VDC);
3) Where the regulation of the output voltage
and the output ripple noise are demanded.
MODEL SELECTION
WRD051212S-1W
Rated Power
Package Style
2nd Output Voltage
1st Output Voltage
Input Voltage
WRD481212S-1W
WRD481515S-1W
WRD480505S-2W
WRD480909S-2W
WRD481212S-2W
WRD481515S-2W
*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.
Operation under 10% load will not damage the converter; However, they may not meet all specification listed
.
OUTPUT SPECIFICATIONS
Item
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
Test Conditions
Refer to recommended circuit
10% to 100% load
Input voltage from low to high
Refer to recommended circuit
20MHz Bandwidth
Input voltage range 100% load
Min
Typ
±1
±3
±0.5
±0.2
50
300
Max
±3
±5
±1*
±0.5
±0.03
100
Units
Positive voltage accuracy
Load regulation
Line regulation
Temperature drift (Vout)
Ripple & Noise**
Switching frequency
Negative voltage accuracy Refer to recommended circuit
%
%/°C
mVp-p
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.
MORNSUN reserves the copyright
Specifications subject to change without notice.
WRD_S-1W & WRD_S-2W
A/1-2008
Page 1 of 2
COMMON SPECIFICATION
Item
Storage humidity
Operating temperature
Storage temperature
Temp. rise at full load
Lead temperature
Isolation voltage
Isolation resistance
Isolation Capacitance
No-load power consumption
Cooling
Short circuit protection
Case material
MTBF
Weight
1000
5.8
1.5mm from case for 10 seconds
Tested for 1 minute and 1mA max
Test at 500VDC
100KHz,1V
1000
1000
80
0.1
Free Air Convection
Continuous
Plastic(UL94-V0)
K hours
g
-40
-55
15
300
VDC
MΩ
pF
W
Test Conditions
Min
Typ.
Max
95
85
125
°C
Units
%
APPLICATION NOTE
CS Pin
By connecting a low ESR capacitor between
this terminal and the pin-7(Figure 1), the output
ripple and noise may be further improved.
Generally, the capacitance is no greater than
47uF.
Requirement on Output Load
To ensure this module can operate efficiently
and reliably, During operation, the minimum
output load is not less than 10% of the full load,
If the actual load is less than the specified
minimum load, the output ripple may increase
sharply. If the actual output power is very
small, please add an appropriate resistor as
extra loading, or contact our company for other
lower output power products.
Recommended Circuit
If you want to further
input/output
ripple,
you
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.
decrease
can
the
TYPICAL TEMPERATURE CURVE
increase
capacitance properly or choose capacitors with
low ESR (Figure 1).
Vin
Li
6
2
8
Ci
GND
1
CS
Co
Cs
7 4 .7 -1 2 uH
10 +Vo2
9
Co
0V2
0V1
+Vo2
+Vo1
100
Operating Temp.(
C
)
OUTLINE DIMENSIONS & FOOTPRINT DETAILS
Firs t Angle Projection
(1. 079)
RECOMMEN DED FOOTPR INT
Top
view,grid: 2.54 mm(0.1inch)
diameter:1.00mm(0.039inch)
(Bottom View)
1 2
6 7 8 9 10
9.50
(Figure 1)
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 sees (Table
1)Cin： 5V & 12V
100μF
24V & 48V
10μF-47μF
Lin： 10μH-120μH
Cout：100μF(TYP)
Extemal Capacitor Table(Table 1)
Vout(VDC) 2W:Cout(uF) 1W:Cout(uF)
5
680
470
9
470
330
12
330
220
15
220
100
Input current
While using unstable power source, please
ensure the output voltage and ripple voltage do
not excced indexes of the converter. The
preceding power source must be able to
2.30
±
0.50
(0.100)
1 2
6 7 8 9 10
12.00
(0.472)
provide for converter sufficient starting current
Input Current(A)
4.10
(Side View)
FOOTPR INT DETAILS
Pin
1
2
6
7
8
9
10
Function
GND
Vin
+Vo1
0V1
CS
0V2
+Vo2
Ip (Figure 2). General: Ip
≤1.4*Iin-max
Ip
0.50
(0.020)
Note:
Unit :mm(inch)
Pin sect ion:0. 50*0.30mm(0.020*0.012inch)
Pin sect ion tolerances:
±
0. 05mm(
±
0.002inch)
General tolerances:
±
0. 25mm(
±
0.010inch)
Input Voltage
Range
Input Voltage (V)
No parallel connection or plug and play.
MORNSUN reserves the copyright
Specifications subject to change without notice.
WRD_S-1W & WRD_S-2W
A/1-2008
Page 2 of 2
京公网安备 11010802033920号
EEWORLD
