®
®
INNOVATION and EXCELLENCE
Single Output
A-Series, UWR Models
A-SERIES
High-Reliability, 2" x 1"
6-10 Watt, DC/DC Converters
Features
s
s
s
Low Cost! Highly reliable!
Proven SMT-on-pcb construction
Designed to meet UL1950 and
EN60950
Qual tested; HALT tested; EMC tested
Small packages, 2" x 1" x 0.375"
Standard pinouts
5, 5.2, 12 or 15 Volt outputs
Choice of 3 wide-range inputs:
4.7-7.25 Volts
9-18 Volts
18-72 Volts
Fully isolated, 1500Vdc guaranteed
–40 to +100°C operation
5-side metal shielded cases with
non-conductive baseplates
Modifications and customs for OEM’s
s
s
s
s
s
s
s
s
s
Placing reliability and cost considerations above all others, DATEL’s new
A-Series DC/DC Converters combine straightforward circuit topologies, the newest
components, proven SMT-on-pcb construction, and highly repeatable automatic
assembly techniques. Considering the critical low-cost and long-term-reliability
requirements of today’s telecom, datacom and computer/networking applications, the
A-Series may well be the most cost-effective DC/DC’s available today.
The single-output, 6-10 Watt Models of the A-Series deliver both high power
densities and impressive MTBF’s. Their superior durability is substantiated by a
rigorous in-house qualification program including HALT (Highly Accelerated Life
Testing). The goal of HALT is not to simulate field conditions but to expose devices to
multiple excessive stresses with the intention of precipitating any potential electrical,
mechanical or process weaknesses.
Packaged in 2" x 1" x 0.375" shielded metal cases with non-conductive coatings,
these fully isolated (1500Vdc guaranteed) DC/DC’s offer excellent line/load regulation,
full I/O protection, thermal shutdown, and industry-standard pinouts.
Output voltages include 5, 5.2, 12 and 15 Volts. Input voltage ranges are either 4.7-
7.25V ("D5A" models), 9-18V ("D12A" models) or 18-72V ("D48A" models). All A-Series
UWR models are fully EMI characterized and UL1950, CSA950 and IEC950 safety
approved.
A-Series DC/DC’s are extremely reliable, easy-to-use, cost-effective power
converters. Use them to improve the reliability of existing equipment or to develop new
systems that exceed design objectives.
+V
IN
+V
OUT
COMMON
–V
IN
PWM
CONTROLLER
OPTO
ISOLATION
REFERENCE &
ERROR AMP
Figure 1. Simplified Schematic
DATEL, Inc., Mansfield, MA 02048 (USA)
•
Tel: (508)339-3000, (800)233-2765 Fax: (508)339-6356
•
Email: sales@datel.com
•
Internet: www.datel.com
A Series
6 - 1 0 W, S I N G L E O U T P U T D C / D C C O N V E R T E R S
Performance Specifications and Ordering Guide
Output
Model
UWR-5/1600-D5A
UWR-5/1800-D48A
UWR-5/2000-D12A
UWR-5/2000-D24E
UWR-5/2000-D48E
UWR-5.2/1500-D5A
UWR-12/665-D5A
UWR-12/750-D48A
UWR-12/830-D12A
UWR-15/530-D5A
UWR-15/600-D48A
UWR-15/665-D12A
Input
Regulation (Max.)
Load
Line
±0.2%
±0.2%
±0.2%
±0.2%
±0.2%
±0.2%
±0.2%
±0.2%
±0.2%
±0.2%
±0.2%
±0.2%
±0.5%
±0.5%
±0.5%
±0.5%
±0.5%
±0.5%
±0.5%
±0.5%
±0.5%
±0.5%
±0.5%
±0.5%
V
OUT
*
(Volts)
5
5
5
5
5
5.2
12
12
12
15
15
15
I
OUT
(mA)
1600
1800
2000
2000
2000
1500
665
750
830
530
600
665
R/N (mVp-p)
Typ.
Max.
50
75
50
50
50
50
75
75
75
50
75
75
100
100
75
75
75
100
100
100
100
100
100
100
V
IN
Nom.
(Volts)
5
48
12
24
48
5
5
48
12
5
48
12
Range
(Volts)
4.7-7.25
18-72
9-18
18-36
36-72
4.7-7.25
4.7-7.25
18-72
9-18
4.7-7.25
18-72
9-18
I
IN
(mA)
20/2105
10/240
15/1029
10/490
10/248
20/2053
25/2046
10/230
35/988
40/2065
10/233
35/978
Efficiency
Min.
Typ.
74%
78%
79.5%
83%
82%
74%
75%
81.5%
81%
75%
81.5%
82%
76%
81%
81%
85%
84%
76%
78%
82.5%
84%
77%
84%
85%
Package
(Case,
Pinout)
C2, P11
C2, P11
C2, P11
C2, P11
C2, P11
C2, P11
C2, P11
C2, P11
C2, P11
C2, P11
C2, P11
C2, P11
Typical at T
A
= +25°C under nominal line voltage and full-load conditions unless otherwise noted.
Ripple/Noise (R/N) measured over a 20MHz bandwidth.
10% to 100% load.
Nominal line voltage, no-load/full-load conditions.
See Technical Notes for an explanation of trading off input voltage ranges for higher full-power operating temperature.
* Contact DATEL for availablility of 3.3V outputs.
PART NUMBER STRUCTURE
M E C H A N I C A L S P E C I F I C AT I O N S
U WR
-
5
/
1800
-
D48 A
Output Configuration:
U
= Unipolar
Wide Range Input
Nominal Output Voltage:
5, 5.2, 12 or 15 Volts
A-Series
High Reliability
Input Voltage Range:
D5
= 4.7-7.25 Volts (5V nominal)
D12
= 9-18 Volts (12V nominal)
D24 = 18-36 Volts (24V nominal)
D48
= 18/36-72 Volts (48V nominal)
Maximum Output Current
in mA
0.375
(9.53)
2.00
(50.80)
METAL CASE
Case C2
INSULATED BASE
0.20 MIN
(5.08)
0.040 ±0.002 DIA.
(1.016 ±0.051)
0.800
(20.32)
0.60
(15.24)
3
1
0.100
(2.54)
0.800
(20.32)
0.400
(10.16)
T E M P E R AT U R E D E R AT I N G
10
9
8
A, C
D, E
B
C
A
D
1.00
(25.40)
4
2
5
0.200
(5.08)
BOTTOM VIEW
0.10
(2.54)
Output Power (Watts)
7
6
5
4
3
2
1
0
–40
0
40
45
50
55
60
65
70
75
80
UWR-5/1600-D5A
UWR-5/1800-D48A
UWR-5/2000-D12A
UWR-5/2000-D24E
UWR-5/2000-D48E
UWR-5.2/1500-D5A
UWR-12/665-D5A
UWR-12/750-D48A
UWR-12/830-D12A
UWR-15/530-D5A
UWR-15/600-D48A
UWR-15/665-D12A
B
D
C
A
A
B
B
E
C
B
E
C
E
I/O Connections
Pin
1
2
3
4
5
Function P11
+Input
–Input
+Output
No Pin
Common
Notes:
For "D5A, D12A and D24E" models,
the case is connected to
pin 2 (–V
IN
).
For "D48A and D48E" models, the case
is connected to pin 1 (+V
IN
).
85
90
95
100
Ambient Temperature (°C)
2
6 - 1 0 W, S I N G L E O U T P U T D C / D C C O N V E R T E R S
UWR Models
Performance/Functional Specifications
Typical @ T
A
= +25°C under nominal line voltage and full-load conditions, unless noted.
Input
Input Voltage Range:
"D5A" Models
"D12A" Models
"D24E" Models
"D48A" Models
"D48E" Models
Input Current
Input Filter Type
Overvoltage Shutdown:
"D5A" Models
"D12A" Models
"D24E" Models
"D48A and D48E" Models
Reverse-Polarity Protection
V
OUT
Accuracy
(50% load)
Temperature Coefficient
Ripple/Noise
(20MHz BW)
Line/Load Regulation
Efficiency
Isolation Voltage
Isolation Capacitance
Current Limiting
Overvoltage Protection
Transient Response
(50% load step)
Switching Frequency
Operating Temperature
(Ambient):
Without Derating
With Derating
Storage Temperature
Dimensions
Shielding
Case Connection:
"D5A, D12A and D24E" Models
"D48A and D48E" Models
Case Material
4.7-7.25 Volts (5V nominal)
9-18 Volts (12V nominal)
18-36Volts (24V nominal
18-72 Volts (48V nominal)
36-72 Volts (48V nominal)
See Ordering Guide
Pi
None
20 Volts
40 Volts
76 Volts
Yes (Instantaneous, 6A maximum)
Absolute Maximum Ratings
Input Voltage:
"D5A" Models
"D12A" Models
"D24E" Models
"D48A and D48E" Models
Input Reverse-Polarity Protection
Output Overvoltage Protection
5/5.2V Outputs
12V Outputs
15V Outputs
Output Current
10 Volts
22 Volts
44 Volts
80 Volts
Current must be <6A. Brief
duration only. Fusing recommended.
6.8 Volts, limited duration
15 Volts, limited duration
18 Volts, limited duration
Current limited.
Max. current and
short-circuit duration model
dependent.
–40 to +105°C
+300°C
Storage Temperature
Lead Temperature
(soldering, 10 sec.)
Output
±1%, maximum
±0.02% per °C
See Ordering Guide
See Ordering Guide
See Ordering Guide
1500Vdc, guaranteed
250pF
Auto-recovery
Zener/transorb clamp, magnetic feedback
These are stress ratings. Exposure of devices to any of these conditions may adversely
affect long-term reliability. Proper operation under conditions other than those listed in the
Performance/Functional Specifications Table is not implied.
TECHNICAL NOTES
Floating Outputs
Since these are isolated DC/DC converters, their outputs are "floating."
Designers will usually use the output Common (pin 5) as the ground/return of
the load circuit. You can, however, use the +Output (pin 3) as ground/return to
effectively reverse the output polarity.
Filtering and Noise Reduction
All A-Series UWR 6-10 Watt DC/DC Converters achieve their rated ripple and
noise specifications without the use of external input/output capacitors. In
critical applications, input/output ripple and noise may be further reduced by
installing electrolytic capacitors across the input terminals and/or low-ESR
tantalum or electrolytic capacitors across the output terminals. The caps should
be located as close to the power converters as possible. Typical values are
listed in the tables below. In many applications, using values greater than those
listed will yield better results.
To Reduce Input Ripple
"D5A" Models
47µF, 10V
"D12A and D24E" Models 20µF, 50V
"D48A and D48E" Models 10µF, 100V
To Reduce Output Ripple
5/5.2V Outputs
12/15V Outputs
47µF, 10V, Low ESR
22µF, 20V, Low ESR
Dynamic Characteristics
200µsec max. to ±1.5% of final value
165kHz (±15kHz)
Environmental
–40 to +60/65/70°C (Model dependent)
to +100°C (See Derating Curves)
–40 to +105°C
Physical
2" x 1" x 0.375" (51 x 25 x 9.5mm)
5-sided
Pin 2 (–V
IN
)
Pin 1 (+V
IN
)
Corrosion resistant steel with
non-conductive, epoxy-based, black
enamel finish and plastic baseplate
Brass, solder coated
1.3 ounces (37 grams)
Pin Material
Weight
These power converters require a minimum 10% loading to maintain specified regulation.
Operation under no-load conditions will not damage these devices; however they may not
meet all listed specifications.
Application-specific input/output filtering can be recommended and perhaps added
internally upon request. Contact DATEL Applications Engineering for details.
Devices can be screened or modified for higher guaranteed isolation voltages.
Contact DATEL Applications Engineering for details.
Except for 3.3V devices which have no protection.
In critical, space-sensitive applications, DATEL may be able to tailor the internal
input/output filtering of these units to meet your specific requirements. Contact
our Applications Engineering Group for additional details.
3
A Series
6 - 1 0 W, S I N G L E O U T P U T D C / D C C O N V E R T E R S
Typical Performance Curves
(T
A
= +25°C)
The performance curves below were derived from actual test data for a single model number (UWR-5/1800-D48A).
Since all devices in the 6-10W UWR A-Series have the same circuit topology, the performance curves are representative of all devices.
L I N E R E G U L AT I O N
L OA D R E G U L AT I O N
Output Voltage vs. Input Voltage and Output Current
5.016
5.014
5.012
I
OUT
= 0.18A
5.010
5.008
I
OUT
= 0.9A
5.006
5.004
I
OUT
= 1.8A
5.002
5.000
18
24
30
36
42
48
54
60
66
72
V
IN
(Volts)
Output Voltage vs. Output Current and Input Voltage
5.016
V
IN
= 18V
5.014
5.012
V
OUT
(Volts)
V
OUT
(Volts)
5.010
5.008
5.006
V
IN
= 72V
5.004
V
IN
= 48V
5.002
5.000
0.18
0.3
0.6
0.9
1.2
1.5
1.8
Output Current (Amps)
EFFICIENCY
Efficiency vs. Output Current and Input Voltage
84
81
78
Efficiency (%)
75
V
IN
= 18V
72
V
IN
= 48V
69
V
IN
= 72V
66
63
60
0.18
0.3
0.6
0.9
1.2
1.5
1.8
Output Current (Amps)
4
6 - 1 0 W, S I N G L E O U T P U T D C / D C C O N V E R T E R S
UWR Models
Input Fusing
Certain applications and/or safety agencies may require the installation of fuses
at the inputs of power conversion components. For DATEL A-Series UWR 6-10
Watt DC/DC Converters, you should use slow-blow type fuses with values no
greater than the following:
V
IN
Range
"D5A"
"D12A and D24E"
"D48A and D48E"
Fuse Value
3A
2A
1A
E M I R A D I AT E D E M I S S I O N S
If you’re designing with EMC in mind, please note that all of DATEL’s
A-Series UWR 6-10 Watt DC/DC Converters have been characterized for
radiated and conducted emissions in our new EMI/EMC laboratory. Testing is
conducted in an EMCO 5305 GTEM test cell utilizing EMCO automated EMC
test software. Radiated emissions are tested to the limits of FCC Part 15,
Class B and CISPR 22 (EN 55022), Class B. Correlation to other specifica-
tions can be supplied upon request. Radiated emissions plots to FCC and
CISPR 22 for model UWR-12/665-D5A appear below. Published EMC test
reports are available for each model number. Contact DATEL’s Applications
Engineering Department for more details.
UWR-12/665-D5A Radiated Emissions
FCC Part 15 Class B, 3 Meters
Converter Output = 12Vdc @ 620mA
80
70
60
C U S TO M C A PA B I L I T I E S
DATEL’s world-class design, development and manufacturing team stands
ready to work with you to deliver the exact power converter you need for your
demanding, large volume, OEM applications. And ... we’ll do it on time and
within budget!
Our experienced applications and design staffs; quick-turn prototype capability;
highly automated, SMT assembly facilities; and in-line SPC quality-control
techniques combine to give us the unique ability to design and deliver any
quantity of power converters to the highest standards of quality and reliability.
We have compiled a large library of DC/DC designs that are currently used in a
variety of telecom, medical, computer, railway, aerospace and industrial
applications. We may already have the converter you need.
Contact us. Our goal is to provide you the highest-quality, most cost-effective
power converters available.
Radiated Emissions (dBµV/M)
FCC Class B Limit
50
40
30
20
10
0
Radiated Emissions
–10
–20
100
1000
Frequency (MHz)
UWR-12/665-D5A Radiated Emissions
EN 55022 Class B, 10 Meters
Converter Output = 12Vdc @ 620mA
80
70
60
Radiated Emissions (dBµV/M)
50
EN 55022 Class B Limit
40
30
20
10
0
Radiated Emissions
–10
–20
100
1000
Frequency (MHz)
5
DSP 与 ARM 处理器
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