Datasheet UWR-5-1000-D48, UWR-5-1000-D24, UWR-15-335-D48, UWR-15-335-D24, UWR-12-420-D48 Datasheet (DATEL)

* "D24" models only

Single Output

UWR Models

Features

Figure 1. Simplified Schematic

+V

IN

–V

IN

+V

OUT

PWM

*

COMMON

The migration to distributed power is accelerating. The critical need f or accurate
voltages, tight regulation and rapid transient response is propelling the move to power
processing at the "point-of-use" with low-power DC/DC converters physically located
right at their loads.

DATEL’s miniature, full f eatured, 5 W att UWR Models were specifically designed for
today’s demanding distributed po wer architectures in aerospace, marine, telecom and
computer applications. The conv erters' low cost, small size (1" x 1" x 0.45") and full 5
Watt output capability give system architects unprecedented design and la yout flexibility.

Occupying less than 0.5in

3

total volume, these extremely compact, fully regulated
and isolated (1000Vdc guaranteed) modules are available with either 5, 12 or 15 V olt
outputs. Input voltage ranges are either 18-36 Volts ("D24" models) or 36-72 V olts ("D48"
models).

Although their overall size is 50-75% smaller than many similarly rated power
modules, these 1" x 1" UWR Models are exact, drop-in, pin-for-pin replacements for
many standard 2" x 1" and 2" x 2", 5 W att modules. They achiev e their small size and low
cost by exploiting a novel feedback approach that does not depend upon traditional
optocoupler techniques.

All models are 5-side shielded and have a non-conductive baseplate that permits pc­card runs to be placed beneath the package. Units are assembled using high-speed
automated SMT techniques and are fully encapsulated with thermally conductive potting
compound. Every unit is electrically tested before and after encapsulation, 100% burned­in under full load, hi-pot tested, and final-electrical tested prior to shipment. Every unit
meets DATEL’s traditional high standards f or quality and long-term reliability .

Miniature, 1" x 1"

5 Watt, DC/DC Converters

DATEL, Inc., Mansfield, MA 02048 (USA) • Tel: [phone] Fax: [phone] • Email: [e-mail] • Internet: www.datel.com

INNOVATION and EX C ELL E N C E

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Small size, 1" x 1" x 0.45"
Full 5 Watts output power
No external components required
Drop-in replacements for many

standard, 2" x 1" DC/DC’s
Wide input voltage ranges:

18-36V or 36-72V
5, 12, or 15V outputs
Guaranteed efficiencies to 80%
Fully regulated and isolated

(1000Vdc guaranteed)
Output overvoltage protection and

current limiting
–25 to +95

o

C operating temperature
Shielded cases (5 sides)
UL 1950, CSA 22.2 No. 234, IEC 950
Modifications and customs for OEM's

MINIATURE, 5 WATT DC/DC CONVERTERS

XWR Series

2

Output Power (Watts)

Ambient Temperature (°C)

–25 0 35 40 45 50 55 60 6 5 70 75 80 85 90 9

5

5

4.5

4

3.5

3

2.5

2

1.5

1

0.5

0

I/O Connections

Function P3

+Input
–Input

+Output

No Pin
No Pin

Common

Notes:

For "D24" models, the case
is connected to pin 2 (–V

IN).

For "D48" models, the case
is connected to pin 1 (+V

IN).

Pin

1
2
3
4
5
6

15U WR 335 D24-

/

-

Input V oltage Range:

D24 = 18-36 Volts (24V nominal)
D48 = 36-72 Volts (48V nominal)

Maximum Output Current

in mA

Nominal Output Voltage

5, 12 or 15 Volts

Wide Range Input

Output Configuration:

U = Unipolar

PART NUMBER STRUCTURE

TEMPERATURE DERATING

MECHANICAL SPECIFICATIONS

METAL CASE

INSULATED BASE

0.040 ±0.002 DIA.
(1.016 ±0.051)

1.00

(25.40)

0.45

(11.43)

0.20 MIN.
(5.08)

0.200
(5.08)

0.10

(2.54)

1.00

(25.40)

0.800

(20.32)

0.100
(2.54)

0.800

(20.32)

0.200
(5.08)

0.400

(10.16)

0.10

(2.54)

BOTTOM VIEW

3

1
2

4

6

5

UWR-5/1000-D24 5 1000 120 ±2% ±2% 24 18-36 25/282 75% C7, P3
UWR-5/1000-D48 5 1000 120 ±2 % ±2% 48 36-72 25/141 75% C7, P3
UWR-12/420-D24 12 420 150 ±2% ±2% 24 18-36 25/265 80% C7, P3
UWR-12/420-D48 12 420 150 ±2% ±2% 48 36-72 25/133 80% C7, P3
UWR-15/335-D24 15 335 150 ±2% ±2% 24 18-36 25/264 80% C7, P3
UWR-15/335-D48 15 335 150 ±2% ±2% 48 36-72 25/132 80% C7, P3

➀

T ypical at TA = +25°C under nominal line voltage and full-load conditions unless otherwise noted.

➁

Ripple/Noise (R/N) measured over a 20MHz bandwidth.

➂

20% to 100% load.

➃

Nominal line voltage, no-load/full-load conditions.

Performance Specifications and Ordering Guide

➀

Ripple/Noise

➁

(mVp-p, Max.)

VOUT

(Volts)

Output

Package

(Case,

Pinout)

Efficiency

(Min.)

Regulation (Max.)
Line

VIN Nom.

(Volts)

Range
(Volts)Model

Input

IOUT

(mA, Max.)

IIN ➃

(mA, Max.)

Load

➂

Case C7

MINIATURE, 5 WATT DC/DC CONVERTERS

UWR Models

3

Floating Outputs

Since these are isolated DC/DC converters, their outputs are "floating."
Users may ground either the Common (pin 6) for normal usage or the
positive side (+Output, pin 3) to effectively reverse the output polarity.

Filtering and Noise Reduction

All UWR 5 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 low-ESR, tantalum or electrolytic capacitors across the input
and/or output terminals. The capacitors should be located as close to the
power converters as possible. Typical values are listed below. In many
applications, using values greater than those listed will yield better results.

To Reduce Input Ripple

"D24" Models 20µF, 50V
"D48" Models 10µF, 100V

To Reduce Output Ripple

5V Outputs 47µF, 10V, Low ESR

12/15V Outputs 33µF, 20V, Low ESR

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.

Input Fusing

Certain applications and/or safety agencies may require the installation of
fuses at the inputs of power conversion components. For DATEL UWR
5 Watt DC/DC Converters, you should use slow-blow type fuses with values
no greater than 0.5A.

Absolute Maximum Ratings

TECHNICAL NOTES

Input V oltage:

"D24" Models 40 Volts
"D48" Models 80 Volts

Input Reverse-Polarity Protection Current must be < 6A. Brief

duration only. Fusing recommended.

Output Overvoltage Protection:

5V Outputs 6.8 Volts, limited duration
12V Outputs 15 Volts, limited duration
15V Outputs 18 Volts, limited duration

Output Current Current limited. Max. current and

short-circuit duration are model
dependent.

Storage Temperature –55 to +125°C
Lead Temperature (soldering, 10 sec.) +300°C

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.

Performance/Functional Specifications

T ypical @ T A = +25°C under nominal line voltage and full-load conditions, unless noted.

➀

➀

These power converters require a minimum 20% loading to maintain specified regulation.
Operation under no-load conditions will not damage these devices; however
they may not meet all listed specifications.

➁

Application-specific input/output filtering can be recommended and perhaps added
internally upon request. Contact DA TEL Applications Engineering for details.

➂

Units can be screened or modified for higher guaranteed isolation voltages.
Contact DA TEL Applications Engineering for details .

➃

Units can be warranted or screened for lower-temperature operation.
Contact DA TEL Applications Engineering for details .

Input

Input V oltage Range:

"D24" Models 18-36 Volts (24V nominal)
"D48" Models 36-72 Volts (48V nominal)

Input Current See Ordering Guide
Input Filter T ype

➁

LC on "D24" models
C on "D48" models

Reverse-Polarity Protection Y es (Instantaneous , 6A maximum)

Output

VOUT Accuracy (50% load):

5V Outputs ±1.5%, maximum
12/15V Outputs ±1%, maximum

Temperature Coefficient ±0.02% per °C
Ripple/Noise (20MHz BW)

➁

See Ordering Guide

Line Regulation See Ordering Guide
Load Regulation See Ordering Guide
Efficiency See Ordering Guide
Isolation V oltage

➂

1000Vdc, minimum

Current Limiting Auto-recovery
Overvoltage Protection Zener/transorb clamp

Dynamic Characteristics

Transient Response (50% load step) 500µsec max. to ±2% of final value
Switching Frequency 170kHz (±10kHz)

Environmental

Operating Temperature (Ambient):

➃

Without Derating –25 to +60°C
With Derating to +95°C (See Derating Curve)

Storage Temperature –55 to +125°C

Physical

Dimensions 1" x 1" x 0.45" (25.4 x 25.4 x 11.4mm)
Shielding 5-sided
Case Connection:

"D24" Models Pin 2 (–V

IN)

"D48" Models Pin 1 (+VIN)

Case Material Corrosion resistant steel with

non-conductive,epoxy-based, black
enamel finish and plastic baseplate

Pin Material Brass, solder coated

81
80
79
78
77
76
75

Efficiency (%)

Input Voltage (Volts)

Efficiency vs. Input Voltage

(Full-load conditions. Guaranteed efficiency = 75% at V

IN

= 24V )

18 21 24 27 30 33 36

4

The performance curves below were derived from actual test data for a single model number (UWR-5/1000-D24).
Since all devices in this Series have the same circuit topology, the performance curves are representative of all devices.

Typical P erformance Curves (TA = +25°C)

EFFICIENCY VS. INPUT VOLTAGE AND OUTPUT LOAD

LINE REGULATION LOAD REGULATION

82
80
78
76
74
72
70

Efficiency (%)

Output Current (Amps)

Efficiency vs. Output Load

(V

IN

= nominal = 24V. Guaranteed efficiency at full load = 75%)

0.2 0.4 0.6 0.8 1.0

5.15

5.10

5.05

5.00

4.95

4.90

4.85

Output Voltage (Volts)

Input Voltage (Volts)

Output Voltage vs.Input Voltage

(Full-load con d itio ns. Nominal

V

OUT

= 5V)

18 21 24 27 30 33 36

5.06

5.04

5.02

5.00

4.98

4.96

4.94

Output Voltage (Volts)

Output Current (Amps)

Output Voltage vs. Output Load

(V

IN

= nominal = 24V. Nominal V

OUT

= 5V)

0.2 0.4 0.6 0.8 1.0

MINIATURE, 5 WATT DC/DC CONVERTERS

XWR Series

5

If you’re designing with EMC in mind, please note that all of DATEL’s UWR
5 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-5/1000-D24 appear below. Its performance is typical of
all models in the Family. Published EMC test reports are available for each
model number. Contact DATEL’s Applications Engineering Department for
details.

EMI RADIATED EMISSIONS

MINIATURE, 5 WATT DC/DC CONVERTERS

UWR Models

DATEL ’s world-class design, de velopment 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 conv erters 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, r ailway , 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.

CUSTOM CAPABILITIES

UWR-5/1000-D24 Radiated Emissions

FCC Part 15 Class B, 3 Meters

Converter Output = 5Vdc @ 800mA

80

70

60

50

40

30

20

10

0

–10

–20

Frequency (MHz)

100

100

0

Radiated Emissions

FCC Class B Limit

Radiated Emissions (dBµV/M)

UWR-5/1000-D24 Radiated Emissions

EN 55022 Class B, 10 Meters

Converter Output = 5Vdc @ 800mA

80

70

60

50

40

30

20

10

0

–10

–20

Frequency (MHz)

100

100

0

Radiated Emissions

EN 55022 Class B Limit

Radiated Emissions (dBµV/M)

6

DS-0316 9/98

INNOVATION and EX C ELL E N C

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®

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ISO 9001

I

SO 9001

REGISTERED

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.

DATEL (UK) LTD. Tadley, England Tel: [phone]
DATEL S.A.R.L. Montigny Le Bretonneux, F rance T el: 01-34-60-01-01
DATEL GmbH München, Germany Tel: [phone]
DATEL KK Tokyo, Japan Tel: [phone], Osaka Tel: [phone]

DATEL, Inc. 11 Cabot Boule vard, Mansfield, MA 02048-1151
Tel: [phone] [phone] Fax: [phone]
Internet: www.datel.com Email: [e-mail]
Data Sheet Fax Back:[phone]

MINIATURE, 5 WATT DC/DC CONVERTERS

XWR Series