DATASHEET
Rev. B
DCNSR SERIES
1.5 to 15 Watts
1A Output Current, 3-Pin SIP Package
Wide Input Voltage Range: 4.6 to 36VDC
Non-Isolated DC/DC Converters
FEATURES
•
1A Output Current
•
Single Outputs
•
1.5 to 15 Watts Output Power
•
Wide Input Voltage Range: 4.6 to 36VDC
•
High Efficiency up to 95.5%
Standard Type
•
Small SIP Package: 0.46” x 0.40” x 0.30”
•
Fixed Switching Frequency
Suffix “A”
•
Short Circuit, Over Current, and Over Temperature Protection
•
Low Standby Current
•
Low Output Ripple and Noise
•
Negative Output Application
•
Pin-out compatible with LM78xx Linear Regulators
•
Compliant to RoHS EU Directive 2002/95/EC
•
Design Meets UL60950-1, EN60950-1, and IEC60950-1
APPLICATIONS
•
•
•
•
•
•
Wireless Networks
Telecom / Datacom
Industry Control Systems
Semiconductor Equipment
Distributed Power Architectures
Microprocessor Power Applications
DESCRIPTION
The DCNSR series consists of high performance non-isolated DC/DC converters that can deliver 1A of output current in a
small 0.46” x 0.40” x 0.30” 3-Pin SIP package. This series features a wide operating temperature range of -40°C to +85°C,
efficiency up to 95.5%, and low ripple and noise. These converters are also protected against over current, over temperature,
and short circuit conditions. These converters are suited to replace 78xx linear regulators and can be used to convert a
positive voltage into a negative voltage. The DCNSR series is RoHS compliant and has UL60950-1, EN60950-1, and
IEC60950-1 safety approvals. These converters are suitable for use in wireless networks, telecom/datacom, industry control
systems, semiconductor equipment, distributed power architectures, and microprocessor power applications. The DCNSR
series also has two pin types available.
09/18/2013
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833
603-778-2300 www.wallindustries.com Fax 603-778-9797
Page 1 of 5
Rev. B
DCNSR Series
1.5 to 15 Watts
1A Output Current
Non-Isolated DC/DC Converters
SPECIFICATIONS:
DCNSR 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
Max
Unit
INPUT SPECIFICATIONS
Input Voltage Range
(See Note 1)
See Table
No Load Input Current
See Table
Maximum Input Current
Vin=Vin(min); Io=Io(max)
1
A
Input Filter
C filter
Input Reflected Ripple Current
100
mA
OUTPUT SPECIFICATIONS
Output Voltage
See Table
Voltage Accuracy
Full load
-2.0
+2.0
% Vo
Line Regulation
-0.2
+0.2
% Vo
1.5V (standard)
-0.6
+0.6
% Vo
Others (Standard)
-0.4
+0.4
% Vo
Load Regulation
10% to 100% of full load
1.5V & 1.8V (suffix “A”)
-1.2
+1.2
% Vo
Others (suffix “A”)
-0.4
+0.4
% Vo
Output Power
1.5 – 15 Watts
Output Current
1
A
1.5V to 6.5VDC output models
50
mVp-p
Ripple & Noise
20MHz Bandwidth
9V to 15VDC output models
75
mVp-p
Output Voltage Overshoot -Startup
full load
1
% Vo
Minimum Load
0
%
Capacitive Load (max)
Tested at minimum input voltage and constant resistive load
470
µF
Output Current Limit
2.0
A
Rise Time
Time for Vo to rise from 10% to 90% of Vo
3.5
ms
Start-up Time
Nominal Vin and constant resistive load
power up
5
ms
Temperature Coefficient
-0.015
+0.015
%/°C
DYNAMIC RESPONSE
Peak Deviation
50% to 100% load step change
150
mV
Recovery Time
50% to 100% load step change
250
µs
PROTECTION
Short Circuit Protection
Continuous, automatic recovery
Over Current Protection
yes
Over Temperature Protection
Internal IC Junction
170
°C
GENERAL SPECIFICATIONS
Efficiency
Typical value at min or max input voltage and full load
See Table
1.5V to 3.3VDC output models
300
KHz
Switching Frequency
5V to 15VDC output models
580
KHz
Isolation Voltage
none
ENVIRONMENTAL SPECIFICATIONS
Operating Temperature
With derating (see derating curves)
-40
+85
°C
Storage Temperature
-55
+125
°C
Thermal Shock
MIL-STD-810F
Vibration
MIL-STD-810F
Relative Humidity
Non-condensing
0
90
% RH
BELLCORE TR-NWT-000332
26,130,000 hours
MTBF
(See Note 2)
MIL-HDBK-217F
6,004,000 hours
PHYSICAL SPECIFICATIONS
Case Material
Non-conductive black plastic
Base Material
none
Potting Material
Silicon (UL94-V0)
Weight
0.07oz (1.9g)
Dimensions (L x W x H)
0.46 x 0.40 x 0.30 inches (11.7 x 10.1 x 7.5 mm)
SAFETY
Safety Approvals
UL60950-1, IEC60950-1, EN60950-1
09/18/2013
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833
603-778-2300 www.wallindustries.com Fax 603-778-9797
Page 2 of 5
Rev. B
DCNSR Series
1.5 to 15 Watts
1A Output Current
Non-Isolated DC/DC Converters
POSITIVE OUTPUT APPLICATION
Model Number
DCNSR-12S1.5
DCNSR-12S1.8
DCNSR-12S2.5
DCNSR-12S3.0
DCNSR-12S3.3
DCNSR-12S05
DCNSR-12S6.5
DCNSR-12S09
DCNSR-24S12
DCNSR-24S15
Input Voltage
Nominal
Range
Input Voltage
4.6 – 36 VDC
4.6 – 36 VDC
4.6 – 36 VDC
4.6 – 36 VDC
4.6 – 36 VDC
6.5 – 36 VDC
8 – 36 VDC
10.5 – 36 VDC
13.5 – 36 VDC
16.5 – 36 VDC
12 VDC
12 VDC
12 VDC
12 VDC
12 VDC
12 VDC
12 VDC
12 VDC
24 VDC
24 VDC
Output
Voltage
1.5 VDC
1.8 VDC
2.5 VDC
3.0 VDC
3.3 VDC
5 VDC
6.5 VDC
9 VDC
12 VDC
15 VDC
Output Current
Min Load Max Load
0A
0A
0A
0A
0A
0A
0A
0A
0A
0A
1A
1A
1A
1A
1A
1A
1A
1A
1A
1A
Switching
Frequency
300KHz
300KHz
300KHz
300KHz
300KHz
580KHz
580KHz
580KHz
580KHz
580KHz
No Load
Current
1mA
1mA
1mA
1.5mA
1.5mA
2.5mA
3mA
3.5mA
2.5mA
3.5mA
Output
Power
1.5W
1.8W
2.5W
3W
3.3W
5W
6.5W
9W
12W
15W
Efficiency
Min Vin
Max Vin
77.0%
80.5%
83.5%
86.5%
87.5%
91.5%
93.0%
94.5%
95.0%
95.5%
66.5%
70.0%
75.5%
78.5%
79.5%
83.0%
86.0%
88.5%
91.5%
92.5%
NEGATIVE OUTPUT APPLICATION
(See Note 1)
Model Number
DCNSR-12S1.5
DCNSR-12S1.8
DCNSR-12S2.5
DCNSR-12S3.0
DCNSR-12S3.3
DCNSR-12S05
DCNSR-12S6.5
DCNSR-12S09
DCNSR-24S12
DCNSR-24S15
Input Voltage
Nominal
Range
Input Voltage
4.6 – 32 VDC
4.6 – 32 VDC
4.6 – 32 VDC
4.6 – 32 VDC
4.6 – 32 VDC
4.6 – 31 VDC
7 – 29 VDC
7 – 27 VDC
7 – 24 VDC
7 – 21 VDC
12 VDC
12 VDC
12 VDC
12 VDC
12 VDC
12 VDC
12 VDC
12 VDC
12 VDC
12 VDC
Output
Voltage
-1.5 VDC
-1.8 VDC
-2.5 VDC
-3.0 VDC
-3.3 VDC
-5 VDC
-6.5 VDC
-9 VDC
-12 VDC
-15 VDC
Output Current
Min Load Max Load
0A
0A
0A
0A
0A
0A
0A
0A
0A
0A
-0.6A
-0.6A
-0.6A
-0.6A
-0.6A
-0.4A
-0.3A
-0.3A
-0.3A
-0.2A
Switching
Frequency
300KHz
300KHz
300KHz
300KHz
300KHz
580KHz
580KHz
580KHz
580KHz
580KHz
No Load
Current
1mA
1mA
1mA
2mA
2mA
3mA
4mA
7mA
8mA
10mA
Output
Power
0.9W
1.1W
1.5W
1.8W
2W
2W
1.95W
2.7W
3.6W
3W
Efficiency
Min Vin
Max Vin
69.5%
72.0%
72.0%
73.0%
74.0%
79.5%
84.5%
85.0%
85.0%
85.5%
64.5%
67.5%
74.0%
76.5%
77.5%
78.5%
80.0%
82.0%
85.5%
84.5%
NOTES
1. The DCNSR series converters can be used to convert a positive voltage into a negative voltage.
2. BELLCORE TR-NWT-000332. Case 1: 50% Stress, Temperature at 40°C. (Ground, Benign, controlled environment)
MIL-HDBK-217F Notice2 @Ta=25°C, Full load. (Ground, Benign, controlled environment)
CAUTION: This power module is not internally fused. An input line fuse must always be used.
Figure 1
C1 and C2 are required and should be positioned close to the converter pins. Maximum capacitive load including C2 is 470µF.
C1
C2
09/18/2013
10µF/50V
10µF/25V
1210 X5R MLCC
1206 X5R MLCC
Page 3 of 5
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833
603-778-2300 www.wallindustries.com Fax 603-778-9797
Rev. B
DCNSR Series
1.5 to 15 Watts
1A Output Current
Non-Isolated DC/DC Converters
CHARACTERISTICS (POSITIVE OUTPUT)
DCNSR-12S05 Derating Curve
OUTPUT POWER (%)
AMBIENT TEMPERATURE (°
C)
DCNSR-12S05 Efficiency vs Input Voltage
DCNSR-12S05 Efficiency vs Output Load
CHARACTERISTICS (NEGATIVE OUTPUT)
DCNSR-12S05 Derating Curve
OUTPUT POWER (%)
AMBIENT TEMPERATURE (°
C)
DCNSR-12S05 Efficiency vs Input Voltage
DCNSR-12S05 Efficiency vs Output Load
09/18/2013
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833
603-778-2300 www.wallindustries.com Fax 603-778-9797
Page 4 of 5
Rev. B
DCNSR Series
1.5 to 15 Watts
1A Output Current
Non-Isolated DC/DC Converters
MECHANICAL DRAWINGS
STANDARD MODELS
Unit: inches (mm)
0.46 (11.7)
FRONT VIEW
0.30 (7.5)
0.200
(5.08)
0.100 (2.54)
0.40 (10.1)
0.02 (0.5)
1
2
3
0.094 (2.4)
BOTTOM VIEW
PIN CONNECTIONS
Pin
1
2
3
Assignment
+Vin
GND
+Vout
0.16
(4.1)
0.01x0.02 (0.3x0.5)
Rectangular Pin
SUFFIX “A” MODELS
Unit: inches (mm)
0.46 (11.7)
FRONT VIEW
0.30 (7.5)
Tolerance: X.XX±0.02 (X.X±0.5)
X.XXX±0.01 (X.XX±0.25)
Pin Pitch Tolerance: ±0.01 (0.25)
Pin Dimensions Tolerance: ±0.004 (0.1)
0.40 (10.1)
0.02 (0.5)
BOTTOM VIEW
All dimensions are for reference only
1
2
3
0.094 (2.4)
0.06 (1.5)
0.01x0.02 (0.3x0.5)
Rectangular Pin
0.100 (2.54)
0.200 (5.08)
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 :
(603)778-2300
(888)597-9255
(603)778-9797
sales@wallindustries.com
www.wallindustries.com
5 Watson Brook Rd.
Exeter, NH 03833
Page 5 of 5
09/18/2013
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833
603-778-2300 www.wallindustries.com Fax 603-778-9797
0.16
(4.1)
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