D_S-2W/ D_D-2W Series
FIXED INPUT ISOLATED & UNREGULATED
2W OUTPUT TWIN INDEPENDENT OUTPUT
MINIATURE SIP/DIP PACKAGE
FEATURES
●
Efficiency up to 87%
●
Small Footprint
●
Super miniature SIP/DIP Package
●
Twin Output Voltage
●
1KVDC Isolation
●
Temperature Range:
-40
°
C
~
+85
°
C
●
Industry Standard Pinout
●
UL94-V0 Package
●
No Heat sink Required
●
No External Component Required
●
PCB Mounting
●
Custom Service Available
●
RoHS
Compliance
RoHS
multi-country patent protection
Output
Vo1, Vo2 Io1, Io2 (mA)
(VDC)
Max
Min
5
9
12
15
5
9
12
15
5
9
12
15
24
200
112
84
67
200
112
84
67
200
112
84
67
83
20
12
9
7
20
12
9
7
20
12
9
7
8
PRODUCT PROGRAM
Part
Number
D050505S/D-2W
D050909S/D-2W
D051212S/D-2W
D051515S/D-2W
D120505S/D-2W
D120909S/D-2W
D121212S/D-2W
D121515S/D-2W
D240505S/D-2W
D240909S/D-2W
D241212S/D-2W
D241515S/D-2W
D242424S/D-2W
Input
Voltage (VDC)
Nominal
Range
5
5
5
5
12
12
12
12
24
24
24
24
24
4.5~5.5
4.5~5.5
4.5~5.5
4.5~5.5
10.8~13.2
10.8~13.2
10.8~13.2
10.8~13.2
21.6~26.4
21.6~26.4
21.6~26.4
21.6~26.4
21.6~26.4
Efficiency
(%, Typ)
82
83
85
85
83
84
86
86
84
85
87
87
87
Package
Style
SIP/DIP
SIP/DIP
SIP/DIP
SIP/DIP
SIP/DIP
SIP/DIP
SIP/DIP
SIP/DIP
SIP/DIP
SIP/DIP
SIP/DIP
SIP/DIP
SIP/DIP
APPLICATIONS
The D_S/D-2W Series are specially designed
for applications where a group of polar 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 fixed (voltage variation
≤±
10%);
2) Where isolation is necessary between input
and output (isolation voltage =1000VDC);
3) Where the regulation of the output voltage
and the output ripple and noise are not
demanding.
Such as: purely digital circuits, ordinary low
frequency analog circuits and IGBT power
device driven circuits, etc.
These products don’t apply to:
1) Where the input supply voltage is varied
(variation
≥±
10%), otherwise our company’s
WRA series is recommended;
2) Where the isolation voltage between input
and output is required to be
>
1000VDC,
otherwise our company’s ED Series of products
are recommended;
3) Circuits in which the output voltage regulation
is demanding, otherwise our company’s IF
Series or WRF Series are recommended;
4) The output load’s actual power consumption
is less than 0.25W, otherwise our company’s
D_S/D-1W Series are recommended.
Note: here
Io1and Io2 are corresponded with Vo1and Vo2
.
COMMON SPECIFICATION
Short circuit protection
Temperature rise at full load
Cooling
No load power consumption
Operation temperature range
Storage temperature range
Lead temperature*
Storage humidity range
Case material
MTBF
1 second
25
°
C MAX, 15
°
C TYP
Free air convection
10% nominal power (typical)
-40
°
C
~
+85
°
C
-55
°
C
~
+125
°
C
300
°
C (1.5mm from case for 10 seconds)
≤
95%
Plastic(UL94-V0)
>3,500,000 hours
ISOLATION SPECIFICATIONS
Item
Isolation voltage
Isolation resistance (Vin/Vout)
Isolation resistance (Vo1/Vo2)
Test condition
Tested for 1 minute
Test at 500VDC
Test at 500VDC
Min Typ
1000
1000
1000
Max
Units
VDC
MΩ
MΩ
MODEL SELECTION
OUTPUT SPECIFICATIONS
Item
Output power
Line regulation
Load regulation
Output voltage accuracy
Temperature drift
Output ripple
Switching frequency
Test condition
Min
0.2
Typ
For Vin change of 1%
10% to 100% full load
See tolerance envelope graph
100% full load
20MHz Bandwidth
Full load, nominal input
Max
2
1.2
15
Units
W
%
%
D050505S/D-2W
Rated Power
Package Style
The 2nd Output Voltage
The 1st Output Voltage
Input Voltage
Product Series
100
75
0.03 %/
°
C
200 mVp-p
KHz
MORNSUN Science& Technology Ltd.
Address: 8th floor 8th building Huangzhou
Industrial District, Guangzhou, China
Tel: 86-20-38601850
Fax: 86-20-38601272
Http: //www.mornsun-power.com
Note:
1.All specifications measured at TA=25
°C
, humidity
<
75%, nominal input voltage and rated output load unless
otherwise specified.
2.See below recommended circuits for more details.
MORNSUN reserves the copyright
Edition: A
NOV-2005
Page 1 of 2
TYPICAL CHARECTERISTICS
Vin
C
L
L
C
+Vo1
0V1
+Vo2
0V2
Vo1
GND
DC DC
(Figure 1)
L
C
Vin
REG
DC DC
GND
0V1
Vo2
0V2
Ambient Temperature
(
C
)
REG
Vin
+Vout
0V
FOOTPRINT DETAILS
Pin
1
2
4
5
6
7
Vin
GND
0V1
+Vo1
0V2
+V02
DC DC
Pin
1
7
8
9
10
11
14
GND
NC
+V02
0V2
+Vo1
0V1
Vin
14
1
11 10 9 8
7
GND
REG
+Vout
0V
(Figure 2)
Overload Protection
Under normal operating conditions, the
output circuit of these products has no
protection against over-current and
short-circuits. The simplest method is to
connect a self-recovery fuse in series at
the input end or add a circuit breaker to
the circuit.
1 2
4 5 6 7
OUTLINE DIMENSIONS& RECOMMENDED FOOTPRINT
DXXXXXXS-2W Package
19.60
DXXXXXXD-2W Package
20.4 0
8.20
4.1 0
Output Voltage Regulation and
Over-voltage Protection Circuit
The simplest device for output voltage
regulation, over-voltage and over-current
protection is a linear voltage regulator with
overheat protection that is connected to
the input or output end in series (see
Figure 2).
10.00
1 0. 00
4.10
DXX XX XXS -2 W
RoHS
YYWW
15.24
1.25
1
2
4 5 6
7
7.00
7.62
1
14
7
11 10
9 8
2.0 0
12. 70
External Capacitor Table
DXXXXXXS-2W Footprint
2.54
2.54
1. 00 + 0 5
.1 /-0
DXXXXXXD-2W Footprint
2.54
2.54
14
1
V
in
5VDC
12VDC
24VDC
--
External
capacitor
4.7uF
2.2uF
1uF
--
V
out
5VDC
9VDC
12VDC
15VDC
External
capacitor
4.7uF
2.2uF
1uF
0.47uF
1.00 +0.15/-0
1
2
4 5 6 7
11 1 0 9 8
7
Note: All Pins on a 2.54mm pitch; All Pin diameters are 0.50 mm; all dimensions in mm.
APPLICATION NOTE
Filtering
In some circuits which are sensitive to noise and ripple, a filtering capacitor may
be added to the DC/DC output end and input end to reduce the noise and ripple.
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 the external capacitor table. To get an
extremely low ripple, an “LC” filtering network may be connected to the input and
output ends of the DC/DC converter, which may produce a more significant
filtering effect. It should also be noted that the inductance and the frequency of
the “LC” filtering network should be staggered with the DC/DC frequency to
avoid mutual interference (see figure 1).
Requirement On Output Load
To ensure this module can operate efficiently and reliably, a minimum load is
specified for this kind of DC/DC converter in addition to a maximum load (namely
full load). During operation, make sure the specified range of input voltage is not
exceeded, the minimum output load is
not less than 10%
of the full load, and
that this product should never be operated under no load! If the actual output
power is very small, please connect a resistor with proper resistance at the
output end in parallel to increase the load, or use our company’s products with a
lower rated output power (D_S(D) –1W Series).
MORNSUN Science& Technology Ltd.
Address: 8th floor 8th building, Huangzhou
Industrial District, Guangzhou, China
Tel: 86-20-38601850
Fax: 86-20-38601272
Http: //www.mornsun-power.com
MORNSUN reserves the copyright
Edition: A
NOV-2005
Page 2 of 2
Programming Basics
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