www.murata-ps.com
UWR-96/100-D48A
9.6 Watt, Single Output, DC/DC Converters
PRODUCT OVERVIEW
In Murata Power Solutions’ flagship 7-15
Watt 1” x 2” high reliability A-series, the new
UWR-96/100-D48A DC/DC power converter offers
a 96Vdc output from 48V input with very high effi-
ciency (to 89%) and thermal performance. Natural
convection operation is available up to +60°C and
only a moderate forced 200 LFM airflow will deliver
full rated power of 9.6 Watts up to +100°C.
Input voltages may be accepted from +36 to
+75 Volts DC using +48 Volts DC as nominal. The
output is +96 Volts DC at 100mA max. regulated
to within ±0.5%. The UWR-96/100-D48A includes
functional isolation between input and output of
1500 Volts DC, minimum, continuous rating.
Other outstanding features include 350mV
peak-to-peak wideband output noise and only
15mA no-load input current. The design includes
extensive self protection and protection for external
circuits. Electromagnetic interference compliance
is achieved with an efficient, low-noise design
rather than through expensive metal shielding.
The UWR-96/100-D48A combines a high-
frequency, high efficiency synchronous-rectifier
topology with advanced components and fully-
automated surface mount construction. Contem-
porary engineering design and state-of-the art
manufacturing are complemented by Murata Power
Solutions’ extensive computer-aided automatic
test, vendor quality programs, life and stress certi-
fication and component screening systems.
FEATURES
■
■
■
■
■
■
■
Wide 36-75V input range
Fixed 96V, 100mA output
Synchronous rectifier topology
Efficiency to 89%
–40 to +60°C ambient with no Derating
Isolated to 1500 Volts
Extensive current, voltage and temperature self-
protection
Standard 1” x 2” x 0.4” package and pinouts
■
Figure 1. Simplified Schematic
Typical topology is shown
For full details go to
www.murata-ps.com/rohs
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MDC_UWR9.6W.B07
Page 1 of 4
UWR-96/100-D48A
9.6 Watt, Single Output, DC/DC Converters
Performance Specifications and Ordering Guide
V
OUT
(Volts)
96
➀
Input
Regulation
➉
Line
±0.5%
Output
Model
UWR-96/100-D48A
I
OUT
(mA)
100
Power
(Watts)
9.6
R/N (mVp-p)
➁
Typ.
350
Max.
700
Load
±0.5%
V
IN
Nom.
(Volts)
48
Range
(Volts)
36-75
I
IN
*
(mA)
15/220
Efficiency
Min.
85%
Typ.
88%
Package
(Case/
Pinout)
C65, P88
* Nominal line voltage, no load/full load conditions.
P A R T
N U M B E R
S T R U C T U R E
U WR
-
96
/
100
-
D48 A
-
C
RoHS-6 hazardous substance compliant*
(does not claim EU RoHS exemption 7B–lead in solder)
Output configuration:
U = Unipolar
A Series:
High Reliability
Input Voltage Range:
D48
= 36-75 Volts (48V nominal)
Maximum Rated Output
Current in mA
Wide Range Input
Nominal Output Voltage:
96 Volts
*
Contact Murata Power Solutions (Datel) for availability.
M E C H A N I C A L
S P E C I F I C A T I O N S
Dimensions are in inches (mm shown for ref. only).
Third Angle Projection
Case C65
Tolerances (unless otherwise specified):
.XX ± 0.02 (0.5)
.XXX ± 0.010 (0.25)
Angles ± 2˚
Components are shown for reference only.
I/O Connections
Pin Function P88
1
2
3
4
5
6
+Vin
–Vin
No Pin
+Vout
No Pin
–Vout
The pin length of standard units is shown.
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MDC_UWR9.6W.B07
Page 2 of 4
UWR-96/100-D48A
Performance/Functional Specifications
Input
Input Voltage Range
Nominal Input Voltage
Start-Up Threshold
Undervoltage Shutdown
Overvoltage Shutdown
Internal Input Filter Type
Reverse Polarity Protection
Input Current:
Full Load Conditions
Inrush Transient
Shutdown Mode (Off, UV, OT)
Output Short Circuit
No Load
Low Line (Vin=Vmin.)
Reflected (Back) Ripple Current
(2)
Output Voltage
Output Power
Minimum Loading
(8)
Resistive
Capacitive
Maximum Capacitive Loading
Accuracy
(50% load)
Output Trim
Temperature Coefficient
Ripple/Noise
(20 MHz bandwidth)
Line/Load Regulation
Efficiency
Isolation
Isolation Voltage, Input to Output
Safety Rating
Isolation Resistance
Isolation Capacitance
Current Limit Inception
(98% of V
OUT
)
Cold start
After warm up
Short Circuit Mode
(6)
Short Circuit Current Output
Protection Method
Short Circuit Duration
36 to 75 Volts
48 Volts
34.5 Volts
34 Volts
None
L-C
None, install external fuse
220mA
50A
2
sec
TBD
40mA
15mA
300mA
TBD
Pin Diameter
Pin Material
Weight
Electromagnetic Interference
Outline Dimensions
Case Material
(1)
9.6 Watt, Single Output, DC/DC Converters
Physical
See Mechanical Specifications
Black diallyl phthalate plastic,
UL94V-0 rated
0.04 inches (1.01 mm)
Gold-plated copper alloy
0.7 ounces (20 grams)
EN55022/CISPR22 (requires external filter)
Performance/Functional Specification Notes:
(1) Specifications are typical at +25°C, V
IN
= nominal, V
OUT
= nominal, full load, external cap and
natural convection unless otherwise indicated. “Nominal” input voltage is +48V.
All models are tested and specified with an external 47µF low ESR electrolytic output
capacitor. This capacitor is necessary to accommodate our test equipment and may not be
required to achieve specified performance in your applications. All models are stable and
regulate within spec with no resistive loads.
(2) Input Back Ripple Current is tested and specified over a 5Hz to 20MHz bandwidth. Input
filtering is C
BUS
(source) = 220µF tantalum (100V), L
BUS IN
= 12µH, C
IN
(at converter) = 22µF
electrolytic.
(3) Note that Maximum Power Derating curves indicate an average current at nominal input volt-
age. At higher temperatures and/or lower airflow, the DC/DC converter will tolerate brief full
current outputs if the total RMS current over time does not exceed the Derating curve.
(4) Mean Time Before Failure is calculated using the Telcordia (Belcore) SR-332 Method 1, Case
3, ground fixed conditions, T
PCBOARD
= +25°C, full output load, natural air convection.
(5) After short circuit shutdown, if the load is partially removed such that the load still exceeds the
overcurrent (OC) detection, the converter will remain in hiccup restart mode.
(6) Short circuit shutdown begins when the output voltage degrades approximately 2% from the
selected setting.
(7) Maximum PC board temperature is measured with the sensor in the center.
(8) A minimum 2.2µF external capacitive load is REQUIRED for stable operation. Use low-ESR
aluminum electrolytic capacitors with 150 Volt or greater rating. Use short leads and mount
the capacitor close to the converter. Murata Power Solutions uses a 47µF cap for some test-
ing. Greater capacitance reduces noise but also slows dynamic response time.
(9) All models are fully operational and meet published specifications, including “cold start” at
–40°C.
(10) Regulation specifications describe the deviation as the line input voltage or output load cur-
rent is varied from a nominal midpoint value to either extreme.
(11) Other input or output voltage ranges are available under scheduled quantity special order.
(12) The Isolation voltage rating is a “minimum maximum.” Murata Power Solutions guarantees
performance up to 1500Vdc (minimum) continuous rating with no damage. However, this is
the maximum isolation voltage which should be applied.
Output
96 Volts DC
9.7 Watts max.
No minimum resistive load
2.2µF min., 150 Volts
47µF, 150 Volts
±1 % of Vnominal
None. Unit is pre-trimmed.
±0.02% of V
OUT
range per °C
See Ordering Guide
See Ordering Guide
(10)
See Ordering Guide
1500Vdc, min., continuous
Functional isolation
100MΩ
1000 pF
145mA
135mA
150mA
Hiccup autorecovery upon overload
removal
(5)
Continuous, no damage
(output shorted to ground)
Absolute Maximum Ratings
Input Voltage
(Continuous
Transient (100 mSec.)
Input Reverse Polarity Protection
Isolation Voltage
Output Overvoltage
Output Current
+75 Volts
+100 Volts
None, install external fuse
1500Vdc, continuous min.
(12)
Do not apply reverse output current
Current-limited. Devices can
withstand sustained short circuit
without damage.
–55 to +125°C
+280°C
Dynamic Characteristics
Dynamic Load Response
(50-75-50% load step)
Start-Up Time
(V
IN
on to V
OUT
regulated)
Switching Frequency
(4)
250µsec to ±2% of final value
20msec for V
OUT
= nominal
280 ±20kHz
Environmental
Calculated MTBF
TBD
Operating Temperature Range
(Ambient)
No derating, natural convection,
vertical mount
–40 to +60°C
(9)
With derating
See Derating Curves
Operating Case Temperature
Storage Temperature Range
Thermal Protection/Shutdown
Relative Humidity
–40 to +100°C max.
(7)
–55 to +125°C
NA
To 85% / 85°C
Storage Temperature
Lead Temperature
(soldering 10sec max.)
Absolute maximums are stress ratings. Exposure of devices to greater than any of these condi-
tions may adversely affect long-term reliability. Proper operation under conditions other than
those listed in the Performance/Functional Specifications Table is not implied nor recommended.
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MDC_UWR9.6W.B07
Page 3 of 4
UWR-96/100-D48A
9.6 Watt, Single Output, DC/DC Converters
Product Adaptations
Murata Power Solutions offers variations of our core product family. These
products are available under scheduled quantity orders and may also include
separate manufacturing documentation from a mutually-agreeable Product
Specification. Since these product adaptations largely share a common parts
list, similar specifications and test methods with their root products, they are
provided at excellent costs and delivery. Please contact MPS for details.
As of this date, the following product is available:
UWR-96/100-D48AHL2-Y
This model includes conformal coating added, 3.68mm pin length, and RoHS-5
hazardous substance compliance (with lead).
Murata Power Solutions, Inc.
11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A.
ISO 9001 and 14001 REGISTERED
This product is subject to the following
operating requirements
and the
Life and Safety Critical Application Sales Policy:
Refer to:
http://www.murata-ps.com/requirements/
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.
© 2013 Murata Power Solutions, Inc.
www.murata-ps.com/support
MDC_UWR9.6W.B07
Page 4 of 4
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