TWR-5/1200-12/250-D48A Murata Power Solutions Inc, TWR-5/1200-12/250-D48A Datasheet - Page 5

• Manufacturer Part Number: TWR-5/1200-12/250-D48A
• Description: DC/DC Converters & Regulators 12W +/-5/+/-12V
• Manufacturer: Murata Power Solutions Inc
• Series: TWRr

Specifications of TWR-5/1200-12/250-D48A

• Product: Isolated
• Output Power: 6 W
• Input Voltage Range: 18 V to 72 V
• Input Voltage (nominal): 48 V
• Number Of Outputs: 3
• Output Voltage (channel 1): 5 V
• Output Current (channel 1): 1.2 A
• Output Voltage (channel 2): 12 V
• Output Current (channel 2): +/- 250 mA
• Output Voltage (channel 3): +/- 12 V
• Isolation Voltage: 1.5 KV
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

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 increasing, random longitudinal and rotational vibration up to 20G’s
with load cycling and applied-voltage extremes added as desired. Many
devices in Murata Power Solutions’ A-Series could not be made to fail prior
to reaching either the limits of the HALT chamber or some previously known
Murata Power Solutions, Inc.
11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A.
Tel: [phone] [phone] Fax: [phone]
www.murata-ps.com email: [e-mail]
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
notice.
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 Murata Power Solu-
tions 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
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.
Murata Power Solutions has invested in a Qualmark OVS-1 HALT tester
100
–20
–40
80
60
40
20
0
10
20
30
Typical HALT Profile
40
Test Time (minutes)
50
60
www.murata-ps.com
70
© 2008 Murata Power Solutions, Inc.
ISO 9001 REGISTERED
80
90
04/07/08
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20
0
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 quali-
fication procedure. The qual procedure includes such strenuous tests as thermal
shock and 500 hour life. Qual testing is summarized below.
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
Murata Power Solutions 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, under-
take corrective actions. Over time, this system has helped refine our assembly
operation to yield one of the lowest product defect rates in the industry.
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.
USA:
Canada: Toronto, Tel: [phone], email: [e-mail]
UK:
France:
Germany: München, Tel: [phone], email: [e-mail]
Japan:
China:
Mansfield (MA), Tel: [phone], email: [e-mail]
Milton Keynes, Tel: [phone], email: [e-mail]
Montigny Le Bretonneux, Tel: [phone], email: [e-mail]
Tokyo, Tel: [phone], email: [e-mail]
Osaka, Tel: [phone], email: [e-mail]
Website: www.murata-ps.jp
Shanghai, Tel: [phone], email: [e-mail]
Guangzhou, Tel: [phone], email: [e-mail]
Technical enquiries email: [e-mail], tel:
Qualification Testing
12-15W, Triple Output DC/DC Converters
Method/Comments
Murata Power Solutions in-house procedure
Max. rated temp., 1,000 hours
10 cycles, –55 to +125°C
+85°C, 85% humidity, 48 hours
Murata Power Solutions in-house procedure
+70°C, 500 hours*
Murata Power Solutions in-house procedure
Per product specification
TWR A-Series
MDC_TWR12-15.B01 Page 5 of 5
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