TWR-5/1000-12/210-D48A-C - MURATA MANUFACTURING

FEATURES Among the three families of triple-output DC/DC converters in DATEL’s new

A-Series, the 8-11W, 2" x 1" devices stand out as the industry’s smallest

full-featured triples. Housed in miniature 2" x 1" x 0.375", 5-side shielded, metal

packages with electrically non-conductive coatings, these power converters offer

non-latching output current limiting, input overvoltage shutdown (except D5A

models), input reverse-polarity protection, and output overvoltage clamping to pro-

tect both the power converters and their loads.

As members of DATEL’s new A-Series, the 8-11W triples feature both low cost

and outstanding long-term reliability. Their design combines straightforward circuit

topologies, the newest components, proven SMT-on-pcb construction methods, and

highly repeatable automatic-assembly techniques. Their superior durability is sub-

stantiated by a rigorous in-house qualification program that includes HALT (Highly

Accelerated Life Testing).

Each of these fully line and load-regulated switching DC/DC converters has a

+5V primary output (with output current as high as 1A) and either ±12V or ±15V

auxiliary outputs (with currents as high as ±210mA). These devices were designed

to power small analog/digital partitions in equipment employing distributed-power

architectures with bus voltages between 4.7 and 72 Volts. Applications include

computer/networking, telecom/datacom equipment, industrial instrumentation and

automatic test equipment.

The smallest, full-featured triples

Low cost! Highly reliable!

Proven SMT-on-pcb construction

Qual tested; HALT tested; EMC tested

Output voltages: +5V/±12V or +5V/±15V

Four input voltage ranges:

4.7-7V, 9-18V, 18-36V or 36-72V

Small packages, 2" x 1" x 0.375"

–40 to +100°C operating temperature

Fully isolated, 1500Vdc guaranteed

Guaranteed efficiencies to 82%

Designed to meet UL1950 and EN60950

Modifications and customs for OEM’s

PWM

CONTROLLER

–

Typical topology is shown

SIMPLIFIED SCHEMATIC

PRODUCT OVERVIEW

TWR Models

High-Reliability, 2" x 1", 8-11 W, Triple Output DC/DC Converters

For full details go to

www.murata-ps.com/rohs

www.murata-ps.com Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000

MDC_TWR8-11W.B01 Page 1 of 5

TWR-5/1000-12/125-D5A

TWR-5/1000-12/210-D12A

TWR-5/1000-12/210-D24A

TWR-5/1000-12/210-D48A

TWR-5/800-15/150-D5A

TWR-5/1000-15/200-D12A

TWR-5/1000-15/200-D24A

TWR-5/1000-15/200-D48A

METAL CASE

INSULATED BASE

0.040 ±0.002 DIA.

(1.016 ±0.051)

2.00

(50.80)

0.375

(9.53)

0.20 MIN

(5.08)

0.10

(2.54)

1.800

(45.72)

BOTTOM VIEW

0.200

(5.08)

0.800

(20.32)

0.600

(15.24)

0.300

(7.62)

1.00

(25.40)

0.10

(2.54)

Case C3

Function P5

+Input

–Input

No Pin

+12V/15V Out

–12V/15V Out

Common

+5V Out

I/O Connections

Output

Configuration:

T = Triple

Nominal Auxiliary Output

Voltages (±12 or ±15 Volts)

Wide Range Input

Maximum Primary Output

Current in mA

Maximum Auxiliary Output

Currents in mA from each output

Input Voltage Range:

D5 = 4.7-7 Volts (5V nominal)

D12 = 9-18 Volts (12V nominal)

D24 =18-36 Volts (24V nominal)

D48 = 36-72 Volts (48V nominal)

Nominal Primary Output

Voltage (+5 Volts)

5T WR 1000 15 200

-/-/D12 A

A-Series

High Reliability

±12

±15

Performance Specifications and Ordering Guide

IOUT

(mA)

R/N (mVp-p) 

Load 

VOUT

(Volts)

Package

(Case,

Pinout)

Efficiency

Regulation (Max.)

Line

VIN Nom.

(Volts)

Range

(Volts)

Model

IIN 

(mA)

Max.

Typ. Typ. Min.

4.7-7

9-18

18-36

36-72

4.7-7

9-18

18-36

36-72

100/2324

50/1087

50/534

50/267

100/2441

50/1187

50/572

50/286

74%

80.5%

82%

74%

79%

82%

C3, P5

1000

±125

1000

±210

1000

±210

1000

±210

800

±150

1000

±200

1000

±200

1000

±200

100

150

100

150

100

150

100

150

100

175

100

175

100

175

100

175

±1.0%

±5.0%

±1.0%

±5.0%

±1.0%

±5.0%

±1.0%

±5.0%

±1.0%

±5.0%

±1.0%

±5.0%

±1.0%

±5.0%

±1.0%

±5.0%

±2.0%

±5.0%

±2.0%

±5.0%

±2.0%

±5.0%

±2.0%

±5.0%

±2.0%

±5.0%

±2.0%

±5.0%

±2.0%

±5.0%

±2.0%

±5.0%

~ Typical @ TA = +25°C under nominal line voltage and full-load conditions unless otherwise noted.

 20MHz bandwidth. ±12/15V outputs are specified with 10μF, 25V output capacitors.

 5V output, 10% to 100% load. ±12/15V outputs, balanced loads, 20% to 100% load.

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

Output Power (Watts)

Ambient Temperature (°C)

–40 0 40 45 50 55 60 65 70 75 80 85 90 95 10

TWR-5/1000-12/125-D5A A

TWR-5/1000-12/210-D12A B

TWR-5/1000-12/210-D24A B

TWR-5/1000-12/210-D48A B

TWR-5/800-15/150-D5A C

TWR-5/1000-15/200-D12A D

TWR-5/1000-15/200-D24A D

TWR-5/1000-15/200-D48A D

100

125

76%

82%

84%

76%

82%

84%

PART NUMBER STRUCTURE MECHANICAL SPECIFICATIONS

TEMPERATURE DERATING

Notes:

For "D5A/D12A/D24A" models,

the case is connected to pin 2 (–VIN).

For "D48A" models, the case

is connected to pin 1 (+VIN).

RoHS-6

compliant*

* Contact Murata Power Solutions (Datel) for availability.

Output Input

TWR Models

High-Reliability, 2" x 1", 8-11 W, Triple Output DC/DC Converters

Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000www.murata-ps.com

MDC_TWR8-11W.B01 Page 2 of 5

Input

Input Voltage Ranges:

"D5A" Models 4.7-7 Volts (5V nominal)

"D12A" Models 9-18 Volts (12V nominal)

"D24A" Models 18-36 Volts (24V nominal)

"D48A" Models 36-72 Volts (48V nominal)

Input Current See Ordering Guide

Input Filter Type  Pi

Reverse-Polarity Protection Yes (Instantaneous, 6A maximum)

Output

VOUT Accuracy (50% loads):

+5V Output ±0.5%

±12V or ±15V Outputs ±3%

Temperature Coefficient ±0.02% per °C

Ripple/Noise (20MHz BW)  See Ordering Guide

Line/Load Regulation See Ordering Guide

Efficiency See Ordering Guide

Isolation Voltage  1500Vdc, minimum

Isolation Capacitance 300pF

Current Limiting Auto-recovery

Overvoltage Protection Zener/transorb clamps, magnetic feedback

Dynamic Characteristics

Transient Response (50% load step) 200μsec max. to ±2% of final value

Switching Frequency 175kHz

Environmental

Operating Temperature (Ambient):

Without Derating –40 to +60/70°C (Model dependent)

With Derating to +100°C (See Derating Curve)

Storage Temperature –40 to +105°C

Flammability UL94V-0

Physical

Dimensions 2" x 1" x 0.375" (51 x 25 x 9.5mm)

Shielding 5-sided

Case Connection Pin 2 (–VIN) 

Case Material Corrosion resistant steel with

non-conductive, epoxy-based, black

enamel finish and plastic baseplate

Pin Material Gold-plated copper alloy

Weight 1.3 ounces (37 grams)

Filtering and Noise Reduction

All A-Series TWR 8-11 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. Output capacitors should be

connected between their respective output pin (pin 4, 5 or 7) and

Common (pin 6) as shown in Figure 2. The caps 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

"D5A" Models 47μF, 10V

"D12A" Models 20μF, 25V

"D24A" Models 20μF, 50V

"D48A" Models 10μF, 100V

To Reduce Output Ripple

+5V Output 47μF, 10V, Low ESR

±12/15V Outputs 22μF, 20V, Low ESR

In critical, space-sensitive applications, DATEL may be able to tailor the in-

ternal input/output filtering of these units to meet your specific requirements.

Contact our Applications Engineering Group for additional details.

Performance/Functional Specifications

Typical @ TA = +25°C under nominal line voltage and full-load conditions, unless noted. ~

~ These power converters require a minimum 10% loading on their primary output and a

minimum 20% loading on their auxiliary outputs to maintain specified regulation. Operation

under no-load conditions will not damage these devices; however they may not meet all

listed specifications.

 Application-specific internal input/output filtering can be recommended or 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.

 On "D48A" models, the case is connected to pin 1 (+VIN).

Input Voltage:

"D5A" Models 10 Volts

"D12A" Models 22 Volts

"D24A" Models 44 Volts

"D48A" Models 80 Volts

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

duration only. Fusing recommended.

Output Overvoltage Protection

+5V Output 6.8 Volts, limited duration

±12V Outputs ±13 Volts, limited duration

±15V Outputs ±16 Volts, limited duration

Output Current Current limited. Max. current and

short-circuit duration model

dependent.

Storage Temperature –40 to +105°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.

Absolute Maximum Ratings

TECHNICAL NOTES

TWR Models

High-Reliability, 2" x 1", 8-11 W, Triple Output DC/DC Converters

Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000www.murata-ps.com

MDC_TWR8-11W.B01 Page 3 of 5

If you’re designing with EMC in mind, please note that all of

DATEL’s TWR 8-11 Watt A-Series 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 emis-

sions are tested to the limits of FCC Part 15, Class B and CISPR 22

(EN 55022), Class B. Correlation to other specifications can be sup-

plied upon request. Radiated emissions plots to FCC and CISPR 22

for model TWR-5/1000-12/125-D5A appear below. Published EMC

test reports are available for each model number. Contact DATEL’s

Applications Engineering Department for more details.

+INPUT

–INPUT

+12/15V

COMMON

OUT

+5V

–12/15V

Figure 2. Using External Capacitors

to Reduce Input/Output Ripple/Noise

Input Fusing

Certain applications and/or safety agencies may require the instal-

lation of fuses at the inputs of power conversion components. For

DATEL A-Series TWR 8-11 Watt DC/DC Converters, you should use

slow-blow type fuses with values no greater than 3A.

–10

–20

Frequency (MHz)

100 1000

FCC Class B Limit

TWR-5/1000-12/125-D5A Radiated Emissions

FCC Part 15 Class B, 3 Meters

Converter Output = +5Vdc @ 950mA and ±12Vdc @ ±114mA

Radiated Emissions (dBμV/M)

Radiated Emissions

TWR-5/1000-12/125-D5A Radiated Emissions

EN 55022 Class B, 10 Meters

Converter Output = +5Vdc @ 950mA and ±12Vdc @ ±114mA

–10

–20

Frequency (MHz)

100 1000

Radiated Emissions

EN 55022 Class B Limit

Radiated Emissions (dBμV/M)

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 cur-

rently used in a variety of telecom, medical, computer, railway,

aerospace and industrial applications. We may already have the

converter you need.

effective power converters available.

EMI RADIATED EMISSIONS

CUSTOM CAPABILITIES

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.

TWR Models

High-Reliability, 2" x 1", 8-11 W, Triple Output DC/DC Converters

Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000www.murata-ps.com

MDC_TWR8-11W.B01 Page 4 of 5

Design for Reliability

Design for Reliability is woven throughout our multi-phased, new-product-

development 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 Acceler-

ated 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

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 +125°C, 30°C/minute) and simultaneous, gradually increas-

ing, 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.

Typical HALT Profile

Qualification Test Method/Comments

HALT DATEL in-house procedure

High Temperature Storage Max. rated temp., 1,000 hours

Thermal Shock 10 cycles, –55 to +125°C

Temperature/Humidity +85°C, 85% humidity, 48 hours

Lead Integrity DATEL in-house procedure

Life Test +70°C, 500 hours*

Marking Permanency DATEL in-house procedure

End Point Electrical Tests Per product specification

Qualification Testing

* Interim electrical test at 200 hours.

10 20 30 40 50 60 70 80 90

Random Vibration (G's)

Temperature (°C)

Test Time (minutes)

100

–20

–40

03/06/08

TWR Models

High-Reliability, 2" x 1", 8-11 W, Triple Output DC/DC Converters

Murata Power Solutions, Inc. 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

USA: Tucson (Az), Tel: (800) 547 2537, email: sales@murata-ps.com

Canada: Toronto, Tel: (866) 740 1232, email: toronto@murata-ps.com

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Osaka, Tel: 6-6354-2025, email: sales_osaka@murata-ps.com

Website: www.murata-ps.jp

China: Shanghai, Tel: +86 215 027 3678, email: shanghai@murata-ps.com

Guangzhou, Tel: +86 208 221 8066, email: guangzhou@murata-ps.com

Murata Power Solutions, Inc.

11 Cabot Boulevard, Mansﬁeld, MA 02048-1151 U.S.A.

Tel: (508) 339-3000 (800) 233-2765 Fax: (508) 339-6356

www.murata-ps.com email: sales@murata-ps.com ISO 9001 REGISTERED

Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000www.murata-ps.com

MDC_TWR8-11W.B01 Page 5 of 5