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DCMAW1 SERIES
1 Watt DC/DC Power Converters
Rev A
FEATURES
• RoHS Compliant
• Compact SIP-6 Package
• 1 Watt Output Power
• 2:1 Wide Input Voltage Ranges
• Fully Regulated Single & Dual
• -40°C to +85°C Operating Temperature Range
• Continuous Short Circuit Protection
Outputs
• 1500VDC I/O Isolation
• CSA/UL/IEC/EN 60950-1 Safety Approvals (Pending)
• High Efficiency up to 80%
• Input Filter Complies to EN55022, Class A & FCC, Level A
• Low Ripple & Noise
DESCRIPTION
Size:
0.67 x 0.30 x 0.43 inches
17.0 x 7.62 x 11.0 mm
The DCMAW1 series of DC/DC power converters consists of fully regulated single and dual output
models with 2:1 wide input voltage ranges of 4.5-9 VDC, 9-18 VDC, 18-36 VDC, and 36-75 VDC.
These converters provide 1 Watt of output power in a very small SIP-6 package occupying only 0.2
square inches on the PCB. A high efficiency allows these converters to operate at a wide
operating temperature range of -40°C to +85°C without derating. Further features include low ripple
& noise, 1500VDC I/O isolation, and short circuit protection. These converters are RoHS compliant
and have CSA/UL/IEC/EN 60950-1 safety approvals. These converters’ very compact dimensions
make them an ideal solution for many space critical applications in battery powered
instrumentations.
MODEL SELECTION TABLE
SINGLE OUTPUT MODELS
Model Number
DCMAW1-05S05
DCMAW1-05S12
DCMAW1-05S15
DCMAW1-05S24
DCMAW1-12S05
DCMAW1-12S12
DCMAW1-12S15
DCMAW1-12S24
DCMAW1-24S05
DCMAW1-24S12
DCMAW1-24S15
DCMAW1-24S24
DCMAW1-48S05
DCMAW1-48S12
DCMAW1-48S15
DCMAW1-48S24
Input Voltage
5 VDC
(4.5 - 9 VDC)
12 VDC
(9 - 18 VDC)
24 VDC
(18 - 36 VDC)
48 VDC
(36 - 75 VDC)
Min
Max
5 VDC
12 VDC
15 VDC
24 VDC
5 VDC
12 VDC
15 VDC
0mA
0mA
0mA
0mA
0mA
0mA
0mA
200mA
83mA
67mA
42mA
200mA
83mA
67mA
Input Current
Max
No Load
Load
263mA
259mA
40mA
254mA
265mA
108mA
108mA
20mA
105mA
24 VDC
5 VDC
12 VDC
15 VDC
24 VDC
0mA
0mA
0mA
0mA
0mA
42mA
200mA
83mA
67mA
42mA
109mA
54mA
52mA
52mA
55mA
5 VDC
12 VDC
15 VDC
24 VDC
0mA
0mA
0mA
0mA
200mA
83mA
67mA
42mA
Output
Voltage
Output Current
10mA
7mA
27mA
27mA
27mA
28mA
Output
Power
Efficiency
1W
1W
1W
1W
1W
1W
1W
76%
77%
79%
76%
77%
77%
80%
Maximum
Capacitive
Load
1680µF
820µF
680µF
470µF
1680µF
820µF
680µF
1W
1W
1W
1W
1W
77%
77%
80%
80%
77%
470µF
1680µF
820µF
680µF
470µF
20mA
1W
1W
1W
1W
77%
78%
78%
76%
1680µF
820µF
680µF
470µF
Reflected
Ripple Current
Output
Power
Efficiency
Maximum
Capacitive
Load
1W
77%
±470µF
1W
78%
±330µF
1W
79%
±470µF
1W
78%
±330µF
1W
80%
±470µF
1W
80%
±330µF
1W
79%
±470µF
1W
79%
±330µF
Reflected
Ripple Current
80mA
40mA
30mA
DUAL OUTPUT MODELS
±15 VDC
0mA
±33mA
Input Current
Max
No Load
Load
262mA
40mA
254mA
12 VDC
(9 - 18 VDC)
±12 VDC
0mA
±42mA
106mA
±15 VDC
0mA
±33mA
24 VDC
(18 - 36 VDC)
±12 VDC
0mA
±42mA
Model Number
Input Voltage
DCMAW1-05D12
5 VDC
(4.5 - 9 VDC)
DCMAW1-05D15
DCMAW1-12D12
DCMAW1-12D15
DCMAW1-24D12
DCMAW1-24D15
DCMAW1-48D12
DCMAW1-48D15
12/06/2013
48 VDC
(36 - 75 VDC)
Output
Voltage
±12 VDC
Output Current
Min
Max
0mA
±42mA
±15 VDC
0mA
±33mA
±12 VDC
0mA
±42mA
±15 VDC
0mA
±33mA
20mA
10mA
7mA
106mA
53mA
52mA
27mA
26mA
80mA
40mA
30mA
20mA
Wall Industries, Inc. • 37 Industrial Drive, Exeter, NH 03833 • Tel: 603-778-2300 • Toll Free: 888-597-9255 • Fax 603-7789797
website: www.wallindustries.com • e-mail: [email protected]
Page 1 of 6
DCMAW1 SERIES
1 Watt DC/DC Power Converters
Rev A
SPECIFICATIONS: DCMAW1 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
9
18
36
-0.7
-0.7
-0.7
-0.7
5
12
24
48
Max
Unit
INPUT SPECIFICATIONS
Input Voltage Range
Input Surge Voltage (1 sec. max.)
Start-up Threshold Voltage
5VDC nominal input models
12VDC nominal input models
24VDC nominal input models
48VDC nominal input models
5VDC nominal input models
12VDC nominal input models
24VDC nominal input models
48VDC nominal input models
5VDC nominal input models
12VDC nominal input models
24VDC nominal input models
48VDC nominal input models
Input Current
Reflected Ripple Current
Input Fuse
Internal Filter Type
OUTPUT SPECIFICATIONS
Output Voltage
5VDC nominal input models
12VDC nominal input models
24VDC nominal input models
48VDC nominal input models
All models
VDC
VDC
VDC
See Table
Output Voltage Setting Accuracy
At 50% load and nominal Vin
Line Regulation
Low line to high line
No load to full load
Load Regulation
10% load to 90% load
±1.0
Single Output Models
Dual Output Models
Single Output Models
Dual Output Models
Minimum Load
Output Power
Output Current
Ripple & Noise
20MHz bandwidth
Transient Recovery Time
25% load step change
Temperature Coefficient
PROTECTION
Short Circuit Protection
GENERAL
Efficiency
Switching Frequency
Isolation Voltage (Input to Output)
60 seconds
Isolation Resistance
500VDC
Isolation Capacitance
100kHz, 1V
Maximum Capacitive Load
ENVIRONMENTAL SPECIFICATIONS
Operating Temperature Range
Natural convection
Case Temperature
Storage Temperature
Humidity
Non-condensing
Cooling
Lead Temperature
1.5mm from case for 10 seconds
MTBF (calculated)
MIL-HDBK-217F at 25°C, Ground Benign
PHYSICAL SPECIFICATIONS
Weight
Dimensions (L x W x H)
Case Material
Pin Material
SAFETY & EMC
Safety Approvals (pending)
9
18
36
75
15
25
50
100
4.5
9
18
36
See Table
See Table
500mA slow-blow type
250mA slow-blow type
120mA slow-blow type
60mA slow-blow type
capacitor
Flammability to UL 94V-0 rated
%Vnom
.
%
±0.2
±1.0
%
±1.0
±0.5
%
±0.8
No minimum load requirements
1
W
See Table
50
mVp-p
250
µs
±0.02
%/°C
Continuous
See Table
220
KHz
VDC
MΩ
pF
1500
1000
50
See Table
-40
-55
+85
+105
+125
95
natural convection
260
2,800,000
°C
°C
°C
% RH
°C
hours
0.46oz (12.9g)
0.67 x 0.30 x 0.43 inch
(17.0 x 7.62 x 11.0 mm)
Non-conductive black plastic
Alloy 42
CSA 60950-1 recognition, IEC/EN 60950-1 (CB-scheme)
*Due to advances in technology, specifications are subject to change without notice.
12/06/2013
Wall Industries, Inc. • 37 Industrial Drive, Exeter, NH 03833 • Tel: 603-778-2300 • Toll Free: 888-597-9255 • Fax 603-7789797
website: www.wallindustries.com • e-mail: [email protected]
Page 2 of 6
Rev A
DCMAW1 SERIES
1 Watt DC/DC Power Converters
DERATING CURVE
MECHANICAL
DRAWINGS
12/06/2013
Wall Industries, Inc. • 37 Industrial Drive, Exeter, NH 03833 • Tel: 603-778-2300 • Toll Free: 888-597-9255 • Fax 603-7789797
website: www.wallindustries.com • e-mail: [email protected]
Page 3 of 6
Rev A
DCMAW1 SERIES
1 Watt DC/DC Power Converters
TEST
CONFIGURATIONS
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 0.47µF 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.
DESIGN & FEATURE
CONSIDERATIONS
Maximum Capacitive Load
The DCMAW1 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.
Over Current Protection
To provide protection in a fault (output overload) condition, the unit is equipped with internal current limiting circuitry and can
endure overload for an unlimited duration. At the point of current-limit inception, the unit shifts from voltage control to current
control. The unit operates normally once the output current is brought back into its specified range.
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.
A 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 100KHz) capacitor of 8.2µF for 5VDC nominal input models, a 3.3µF for
12VDC input models, and a 1.5µF for 24VDC and 48VDC input models.
12/06/2013
Wall Industries, Inc. • 37 Industrial Drive, Exeter, NH 03833 • Tel: 603-778-2300 • Toll Free: 888-597-9255 • Fax 603-7789797
website: www.wallindustries.com • e-mail: [email protected]
Page 4 of 6
DCMAW1 SERIES
1 Watt DC/DC Power Converters
Rev A
DESIGN & FEATURE
CONSIDERATIONS
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 3.3µF capacitors at the output.
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 105°C. The derating curves are determined from measurements obtained in a test setup.
MODEL NUMBER
SETUP
DCMAW
1
Series Name
Output Power
1: 1 Watt
-
12
S
12
Input Voltage
No. of Outputs
Output Voltage
05: 4.5 – 9 VDC
S: Single Output
05: 5 VDC
12: 9 – 18 VDC
12: 12 VDC
24: 18 – 36 VDC
15: 15 VDC
48: 36 – 75 VDC
24: 24 VDC
D: Dual Output
12: ±12 VDC
15: ±15 VDC
COMPANY
INFORMATION
12/06/2013
Wall Industries, Inc. • 37 Industrial Drive, Exeter, NH 03833 • Tel: 603-778-2300 • Toll Free: 888-597-9255 • Fax 603-7789797
website: www.wallindustries.com • e-mail: [email protected]
Page 5 of 6
Rev A
DCMAW1 SERIES
1 Watt DC/DC Power Converters
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:
12/06/2013
(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 603-7789797
website: www.wallindustries.com • e-mail: [email protected]
Page 6 of 6