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DCMSAU2 SERIES
2 Watt DC/DC Power Converters
Rev B
Single Output Models
FEATURES
• Up to 2 Watts Output Power
• -40°C to +85°C Operating Temperature
• Single & Dual Outputs
• SMT Package with Industry Standard Pin-out
• 1000VDC I/O Isolation
• Qualified for Lead-free Reflow Solder Processes
• High Accuracy of Pin Planarity
• MTBF > 2,000,000 Hours
Size: 0.50 x 0.37 x 0.35 inches (12.7 x 9.3 x 8.9 mm)
Dual Output Models
Size: 0.60 x 0.37 x 0.35 inches (15.3 x 9.3 x 8.9 mm)
According to IPC/JEDEC J-STD-020D
• Tape & Reel Packaging Available
DESCRIPTION
The DCMSAU2 series of DC/DC converters provides 2 Watts of output power in a
miniature SMT package. These converters operate over input voltage ranges of
4.5~5.5VDC, 10.8~13.2VDC, and 21.6~26.4VDC. This series also has single and dual
output voltages of 5V, 12V, ±5V, ±12V, and ±15VDC. The DCMSAU2 series’ impressive
efficiencies enable these modules to deliver their fully rated output power from –40°C to
+80°C without a heatsink or forced-air cooling. The very small footprint of these
converters makes them an ideal solution for many applications where a voltage has to be
isolated such as for noise reduction, ground loop elimination in digital interfaces, or
where a converted voltage is required. These converters are also fully qualified for the
higher temperature profile used in lead-free reflow solder processes. These converters
can also be supplied in tape&reel packaging for use in automated SMD production lines.
MODEL SELECTION TABLE
SINGLE OUTPUT MODELS
Model Number
DCMSAU505-2
DCMSAU512-2
DCMSAU1205-2
DCMSAU1212-2
DCMSAU2405-2
DCMSAU2412-2
Input Voltage
5 VDC
(4.5 – 5.5
VDC)
12 VDC
(10.8 – 13.2
VDC)
24 VDC
(21.6 – 26.4
VDC)
Output Current
Output
Voltage
Min
Max
5 VDC
8mA
400mA
Input Current
Max
No Load
Load
Load
Regulation
Output
Power
Efficiency
Maximum
Capacitive
Load
519mA
11%
2W
77%
47µF
488mA
11%
2W
81%
10µF
213mA
8%
2W
78%
47µF
201mA
6%
2W
82%
10µF
106mA
8%
2W
78%
47µF
101mA
5%
2W
81%
10µF
Load
Regulation
Output
Power
Efficiency
Maximum
Capacitive
Load
519mA
12%
2W
77%
±10µF
504mA
7%
2W
79%
±4.7µF
501mA
7%
2W
79%
±4.7µF
202mA
5%
2W
82%
±4.7µF
201mA
5%
2W
82%
±4.7µF
102mA
5%
2W
81%
±4.7µF
100mA
5%
2W
82%
±4.7µF
60mA
12 VDC
3mA
165mA
5 VDC
8mA
400mA
30mA
12 VDC
3mA
165mA
5 VDC
8mA
400mA
15mA
12 VDC
3mA
165mA
DUAL OUTPUT MODELS
Model Number
DCMSAU505D-2
DCMSAU512D-2
DCMSAU515D-2
DCMSAU1212D-2
DCMSAU1215D-2
DCMSAU2412D-2
DCMSAU2415D-2
Output Current
Output
Voltage
Min
Max
±5 VDC
±4mA
±200mA
±12 VDC
±1.5mA
±83mA
±15 VDC
±1mA
±66mA
12 VDC
(10.8 – 13.2
VDC)
±12 VDC
±1.5mA
±83mA
±15 VDC
±1mA
±66mA
24 VDC
(21.6 – 26.4
VDC)
±12 VDC
±1.5mA
±83mA
Input Voltage
5 VDC
(4.5 – 5.5
VDC)
Input Current
Max
No Load
Load
60mA
30mA
15mA
±15 VDC
±1mA
±66mA
NOTES
1. The DCMSAU2 series requires a minimum output loading to maintain specified regulations. Operation under no-load conditions will not
damage these devices; however they may not meet all listed specifications.
2. All DC/DC converters should be externally fused at the front end for protection.
3. Other input and output voltages may be available, please contact factory.
*Due to advances in technology, specifications are subject to change without notice.
10/23/2013
Wall Industries, Inc. • 37 Industrial Drive, Exeter, NH 03833 • Tel: 603-778-2300 • Toll Free: 888-597-9255 •
Fax 603-778-9797
website: www.wallindustries.com • e-mail: [email protected]
Page 1 of 5
Rev B
DCMSAU2 SERIES
2 Watt DC/DC Power Converters
SPECIFICATIONS: DCMSAU2 SERIES
All specifications are based on 25°C, Nominal Input Voltage, and Maximum Output Current unless otherwise noted.
We reserve the right to change specifications based on technological advances.
SPECIFICATION
TEST CONDITIONS
Min
Typ
4.5
10.8
21.6
-0.7
-0.7
-0.7
5
12
24
Max
Unit
INPUT SPECIFICATIONS
Input Voltage Range
Input Surge Voltage (1sec, max.)
5VDC nominal input models
12VDC nominal input models
24 VDC nominal input models
5VDC nominal input models
12VDC nominal input models
24 VDC nominal input models
Reverse Polarity Input Current
Input Current
Internal Power Dissipation
Input Filter
5VDC nominal input models
12VDC nominal input models
24 VDC nominal input models
Input Fuse
5.5
13.2
VDC
26.4
9
18
VDC
30
0.3
A
See Table
650
mW
Internal capacitor
1000mA slow-blow type
500mA slow-blow type
200mA slow-blow type
OUTPUT SPECIFICATIONS
Output Voltage
Output Voltage Accuracy
Output Voltage Balance (Dual Outputs)
Line Regulation
Load Regulation
Output Power
Output Current
Minimum Load
Maximum Capacitive Load
Ripple & Noise (20MHz)
See Table
±1.5
±4.0
±0.1
±1.0
±1.2
±1.5
See Table
2
See Table
See Table
See Table
100
120
200
15
±0.01
±0.02
Balanced loads
For Vin change of 1%
20% load to 100% load
See Note 1
Over line, over load, and over temperature
Temperature Coefficient
%
%
%
W
mVp-p
mVp-p
mV rms
%/°C
PROTECTION
Short Circuit Protection
0.5
s
GENERAL SPECIFICATIONS
Efficiency
Switching Frequency
Isolation Voltage (I/P to O/P)
Isolation Resistance (I/P to O/P)
Isolation Capacitance (I/P to O/P)
Nominal input voltage and full load
60 seconds
500VDC
100KHz, 1V
50
1000
1000
See Table
100
120
60
KHz
VDC
MΩ
pF
100
ENVIRONMENTAL SPECIFICATIONS
Operating Ambient Temperature
Case Temperature
Storage Temperature
Relative Humidity
Cooling
Lead Temperature
Moisture Sensitivity Level (MSL)
MTBF
See derating curve
-40
-50
Non-condensing
1.5mm from case for 10 sec.
IPC/JEDEC J-STD-020D
MIL-HDBK-217F at 25°C, ground benign
+85
+90
+125
95
Free air convection
300
Level 3
2,000,000 hours
°C
°C
°C
% RH
°C
PHYSICAL SPECIFICATIONS
Single Output Models
Dual Output Models
Weight
Single Output Models
Dimensions (L x W x H)
Dual Output Models
Case Material
10/23/2013
Flammability to UL 94V-0 rated
0.05oz (1.5g)
0.08oz (2.2g)
0.50 x 0.37 x 0.34 inch
(12.7 x 9.3 x 8.65 mm)
0.60 x 0.37 x 0.34 inch
(15.3 x 9.3 x 8.65 mm)
Molding
Wall Industries, Inc. • 37 Industrial Drive, Exeter, NH 03833 • Tel: 603-778-2300 • Toll Free: 888-597-9255 •
Fax 603-778-9797
website: www.wallindustries.com • e-mail: [email protected]
Page 2 of 5
Rev B
DCMSAU2 SERIES
2 Watt DC/DC Power Converters
DERATING CURVE
MECHANICAL DRAWINGS
Single Output Models
Dual Output Models
10/23/2013
Wall Industries, Inc. • 37 Industrial Drive, Exeter, NH 03833 • Tel: 603-778-2300 • Toll Free: 888-597-9255 •
Fax 603-778-9797
website: www.wallindustries.com • e-mail: [email protected]
Page 3 of 5
Rev B
DCMSAU2 SERIES
2 Watt DC/DC Power Converters
DESIGN CONSIDERATIONS
Input Reflected-Ripple Current Test Setup
Input reflected-ripple current is measured with an inductor Lin (4.7µH) and Cin (220µF, ESR < 1.0Ω at 100 KHz) to simulate
source impedance. Capacitor Cin offsets possible battery impedance. Current ripple is measured at the input terminals of the
module. Measurement bandwidth is 0-500 KHz.
Peak-to-Peak Output Noise Measurement Test
Use a 0.33µF ceramic capacitor. Scope measurement should be made by using a BNC socket, measurement bandwidth is 020MHz. Position the load between 50mm and 75mm from the DC/DC converter.
TEST SETUP
Maximum Capacitive Load
The DCMSAU2 series has a limitation of maximum connected capacitance on the output. The power module may be
operated in current limiting mode during start-up, affecting the ramp-up and the start-up time. The maximum capacitance can
be found in the Model Selection Table.
Input Source Impedance
The power module should be connected to a low ac-impedance input source. Highly inductive source impedances can affect
the stability of the power module. In applications where power is supplied over long lines and output loading is high, it may be
necessary to use a capacitor at the input to ensure startup. Capacitor mounted close to the power module helps ensure
stability of the unit, it is recommended to use a good quality low Equivalent Series Resistance (ESR < 1.0Ω at 100 KHz)
capacitor of 2.2µF for 5VDC input models, 1.0µF for 12VDC input models, and 0.47µF for 24VDC input models.
10/23/2013
Wall Industries, Inc. • 37 Industrial Drive, Exeter, NH 03833 • Tel: 603-778-2300 • Toll Free: 888-597-9255 •
Fax 603-778-9797
website: www.wallindustries.com • e-mail: [email protected]
Page 4 of 5
Rev B
DCMSAU2 SERIES
2 Watt DC/DC Power Converters
Output Ripple Reduction
A good quality low ESR capacitor placed as close as possible across the load will give the best ripple and noise performance.
To reduce output ripple, it is recommended to use 1.5µF capacitors at the output.
TEST SETUP
Thermal Considerations
Many conditions affect the thermal performance of the power module, such as orientation, airflow over the module, and board
spacing. To avoid exceeding the maximum temperature rating of the components inside the power module, the case
temperature must be kept below 90°C. The derating curves are determined from measurements obtained in a test setup.
COMPANY INFORMATION
Wall Industries, Inc. has created custom and modified units for over 50 years. Our in-house research and development
engineers will provide a solution that exceeds your performance requirements on-time and on budget. Our ISO9001-2008
certification is just one example of our commitment to producing a high quality, well-documented product for our customers.
Our past projects demonstrate our commitment to you, our customer. Wall Industries, Inc. has a reputation for working closely
with its customers to ensure each solution meets or exceeds form, fit and function requirements. We will continue to provide
ongoing support for your project above and beyond the design and production phases. Give us a call today to discuss your
future projects.
Contact Wall Industries for further information:
Phone:
Toll Free:
Fax:
E-mail:
Web:
Address:
10/23/2013
(603)778-2300
(888)597-9255
(603)778-9797
[email protected]
www.wallindustries.com
37 Industrial Drive
Exeter, NH 03833
Wall Industries, Inc. • 37 Industrial Drive, Exeter, NH 03833 • Tel: 603-778-2300 • Toll Free: 888-597-9255 •
Fax 603-778-9797
website: www.wallindustries.com • e-mail: [email protected]
Page 5 of 5