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INNOVATION and EXCELLENCE
Single Output
A-Series, UWR Models
A-SERIES
High-Reliability, 2" x 1" 6-10 Watt, DC/DC Converters
Features

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 18-75 Volts Fully isolated, 1500Vdc guaranteed -40 to +100C operation 5-side metal shielded cases with non-conductive baseplates Modifications and customs for OEM's

+VIN (1)
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-VIN (2)
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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-termreliability 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 18-75V ("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.
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+VOUT (3)
COMMON (5)
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
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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 RT 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 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
VOUT * (Volts)
5 5 5 5 5 5.2 12 12 12 15 15 15
IOUT (mA)
1600 1800 2000 2000 2000 1500 665 750 830 530 600 665
R/N (mVp-p) Typ.
50 75 50 50 50 50 75 75 75 50 75 75
Max.
100 100 75 75 75 100 100 100 100 100 100 100
Regulation (Max.) Line Load
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%
VIN Nom. (Volts)
5 48 12 24 48 5 5 48 12 5 48 12
Range (Volts)
4.7-7.25 18-75 9-18 18-36 36-72 4.7-7.25 4.7-7.25 18-75 9-18 4.7-7.25 18-75 9-18
IIN (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%
Typical at TA = +25C 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.
PA R T N U M B E R S T R U C T U R E
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 = 18-75/36-72 Volts (48V nominal) Maximum Output Current in mA
1
1.00 (25.40) 0.375 (9.53)
2.00 (50.80) METAL CASE
Case C2
INSULATED BASE 0.20 MIN (5.08) 0.800 (20.32)
0.040 0.002 DIA. (1.016 0.051) 0.60 (15.24)
3 4
0.100 (2.54)
0.800 (20.32) 0.400 (10.16)
2 5 0.200 (5.08) BOTTOM VIEW 0.10 (2.54)
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
DIMENSIONS ARE IN INCHES (MM)
D
Output Power (Watts)
7 6
E
I/O Connections
5 4 3 2 1 0 -40 0 40 45 50 55 60 65 70 75 80 85 90 95 100 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
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 (-VIN). For "D48A and D48E" models, the case is connected to pin 1 (+VIN).
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 RT E R S
UWR Models
Performance/Functional Specifications
Typical @ TA = +25C 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 VOUT 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 18-75 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 +105C +300C
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
Storage Temperature Lead Temperature (soldering, 10 sec.)
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 D12A and D24E Models D48A and D48E Models To Reduce Output Ripple 5/5.2V Outputs 12/15V Outputs 47F, 10V 20F, 50V 10F, 100V 47F, 10V, Low ESR 22F, 20V, Low ESR
Dynamic Characteristics
200sec max. to 1.5% of final value 165kHz (15kHz)
Environmental
-40 to +60/65/70C (Model dependent) to +100C (See Derating Curves) -40 to +105C
Physical
2" x 1" x 0.375" (51 x 25 x 9.5mm) 5-sided Pin 2 (-VIN) Pin 1 (+VIN) 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.
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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 RT E R S
Typical Performance Curves (TA = +25C)
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 VOUT (Volts) 5.010 5.008 IOUT = 0.9A 5.006 5.004 IOUT = 1.8A 5.002 5.000 18 24 30 36 42 48 54 60 66 72 VIN (Volts) 5.002 5.000 0.18 VOUT (Volts) IOUT = 0.18A 5.016
Output Voltage vs. Output Current and Input Voltage
VIN = 18V 5.014 5.012 5.010 5.008 5.006 VIN = 72V 5.004 VIN = 48V
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 VIN = 18V 72 VIN = 48V 69 VIN = 72V 66 63 60 0.18 0.3 0.6 0.9 1.2 1.5 1.8 Output Current (Amps)
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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 RT 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: VIN 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 specifications 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 qualitycontrol 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 (dBV/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 (dBV/M)
50
EN 55022 Class B Limit
40 30 20 10 0
Radiated Emissions
-10 -20 100 1000
Frequency (MHz)
5
A Series Quality and Reliability
The A-Series are the first DC/DC Converters to emerge from DATEL's new, company-wide approach to designing and manufacturing the most reliable power converters available. The five-pronged program draws our Quality Assurance function into all aspects of new-product design, development, characterization, qualification and manufacturing. Design for Reliability Design for Reliability is woven throughout our multi-phased, new-productdevelopment process. Design-for-reliability practices are fully documented and begin early in the new-product development cycle with the following goals: 1. To work from an approved components/vendors list ensuring the use of reliable components and the rigorous qualification of new components. 2. To design with safety margins by adhering to a strict set of derating guidelines and performing theoretical worst-case analyses. 3. To locate potential design weaknesses early in the product-development cycle by using extensive HALT (Highly Accelerated Life Testing). 4. To prove that early design improvements are effective by employing a thorough FRACA (Failure Reporting Analysis and Corrective Action) system. HALT Testing The goal of the accelerated-stress techniques used by DATEL is to force device maturity, in a short period of time, by exposing devices to excessive levels of "every stimulus of potential value." We use HALT (Highly Accelerated Life Testing) repeatedly during the design and early manufacturing phases to detect potential electrical and mechanical design weaknesses that could result in possible future field failures. During HALT, prototype and pre-production DC/DC converters are subjected to progressively higher stress levels induced by thermal cycling, rate of temperature change, vibration, power cycling, product-specific stresses (such as dc voltage variation) and combined environments. The stresses are not meant to simulate field environments but to expose any weaknesses in a product's electro/mechanical design and/or assembly processes. The goal of HALT is to make products fail so that device weaknesses can be analyzed and strengthened as appropriate. Applied stresses are continually stepped
Typical HALT Profile
100 80 60 Temperature (C) 40 20 0 -20 -40 10 20 30 40 50 60 70 80 90 0 20 Random Vibration (G's) 40
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 RT E R S
up until products eventually fail. After corrective actions and/or design changes, stresses are stepped up again and the cycle is repeated until the "fundamental limit of the technology" is determined. DATEL has invested in a Qualmark OVS-1 HALT tester capable of applying voltage and temperature extremes as well as 6-axis, linear and rotational, random vibration. A typical HALT profile (shown above) consists of thermal cycling (-55 to +125C, 30C/minute) and simultaneous, gradually increasing, random longitudinal and rotational vibration up to 20G's with load cycling and applied-voltage extremes added as desired. Many devices in DATEL's new A-Series could not be made to fail prior to reaching either the limits of the HALT chamber or some previously known physical limit of the device. We also use the HALT chamber and its ability to rapidly cool devices to verify their "cold-start" capabilities. Qualification For each new product, electrical performance is verified via a comprehensive characterization process and long-term reliability is confirmed via a rigorous qualification procedure. The qual procedure includes such strenuous tests as thermal shock and 500 hour life. Qual testing is summarized below.
Qualification Testing
Qualification Test HALT High Temperature Storage Thermal Shock Temperature/Humidity Lead Integrity Life Test Marking Permanency End Point Electrical Tests
* Interim electrical test at 200 hours.
Method/Comments DATEL in-house procedure Max. rated temp., 1,000 hours 10 cycles, -55 to +125C +85C, 85% humidity, 48 hours DATEL in-house procedure +70C, 500 hours* DATEL in-house procedure Per product specification
In-Line Process Controls and Screening A combination of statistical sampling and 100% inspection techniques keeps our assembly line under constant control. Parameters such as solder-paste thickness, component placement, cleanliness, etc. are statistically sampled, charted and fine tuned as necessary. Visual inspections are performed by trained operators after pick-and-place, soldering and cleaning operations. Units are 100% electrically tested prior to potting. All devices are temperature cycled, burned-in, hi-pot tested and final-electrical tested prior to external visual examination, packing and shipping. Rapid Response to Problems DATEL employs an outstanding corrective-action system to immediately address any detected shortcomings in either products or processes. Whenever our assembly, quality or engineering personnel spot a product/process problem, or if a product is returned with a potential defect, we immediately perform a detailed failure analysis and, if necessary, undertake corrective actions. Over time, this system has helped refine our assembly operation to yield one of the lowest product defect rates in the industry.
Test Time (minutes)
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INNOVATION and EXCELLENCE
ISO 9001 REGISTERED
DS-0360A
8/02
DATEL, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 Tel: (508) 339-3000 (800) 233-2765 Fax: (508) 339-6356 Internet: www.datel.com Email: sales@datel.com
DATEL (UK) LTD. Tadley, England Tel: (01256)-880444 DATEL S.A.R.L. Montigny Le Bretonneux, France Tel: 01-34-60-01-01 DATEL GmbH Munchen, Germany Tel: 89-544334-0 DATEL KK Tokyo, Japan Tel: 3-3779-1031, Osaka Tel: 6-6354-2025
DATEL makes no representation that the use of its products in the circuits described herein, or the use of other technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change without notice. The DATEL logo is a registered DATEL, Inc. trademark.

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