www.murata-ps.com
UWE-100-120W Series
Wide Input, Isolated Eighth-Brick DC-DC Converters
The UWE Series "Eighth-Brick" DC-DC Converters are high-current isolated
power modules designed for use in high-density system boards.
Typical units
FEATURES
Industry-standard through-hole eighth-brick
package
Wide input range of 18-75Vdc or
9-36Vdc (12Vout only)
Fixed outputs from 3.3, 5 and 12 Volts DC up to
120 Watts
Synchronous rectification yields very high ef-
ficiency and low power dissipation
Operating temperature range from -40°C to
+85˚C with derating
Up to 2250 Volt DC isolation
Outstanding thermal performance and derating
Extensive self-protection, over temperature and
overload features
On/Off control, trim and remote sense functions
Certified to UL/EN/IEC 60950-1, CAN/CSA-C22.2
No. 60950-1, 2nd Edition, safety approvals and
EN55022/CISPR22 standards
Pre-bias operation for startup protection
PRODUCT OVERVIEW
The UWE series open frame DC-DC converters
deliver up to 120 Watts in an industry-standard
“eighth-brick” through-hole package. This format
can plug directly into quarter-brick pin outs.
Several standard fixed-output voltages from 3.3
Vdc to 12 Vdc assure compatibility in embedded
equipment, CPU cards and instrument subsystems.
The extended 4-to-1 input voltage range is ideal for
battery-powered, telecom or portable applications.
Very high efficiency means no fans or tempera-
ture deratings in many applications. An optional
baseplate extends operation into most conceivable
environments.
The synchronous rectifier design uses the maxi-
mum available duty cycle for greatest efficiency
and low power dissipation. These devices deliver
low output noise, tight line/load regulation, stable
no-load operation and fast load step response. All
units are precision assembled in a highly auto-
mated facility with ISO-traceable manufacturing
quality standards. Isolation of 2250 Volts assures
safety and fully differential (floating) operation for
greatest application flexibility. On-board Sense
terminals compensate for load line voltage errors at
high output currents. Outputs are trimmable within
±10% of nominal voltage.
A wealth of protection features prevents damage
to both the converter and outside circuits. Inputs
are protected from under voltage and outputs fea-
ture short circuit protection, over current and over
temperature shut down. Overloads automatically
recover using the “hiccup” technique upon fault
removal. The UWE is certified to standard safety
and EMI/RFI approvals. All units meet RoHS-6
hazardous materials compliance.
+V
IN
SWITCH
DRIVE
+V
OUT
VOLTAGE
REGULATOR
+SENSE
–V
IN
SS
PWM
−V
OUT
−SENSE
ON/OFF
CONTROL
ISOLATION
REFERENCE
AMPLIFIER,
TRIM AND FEEDBACK
Typical topology is shown.
TRIM
Figure 1. Simplified Block Diagram
For full details go to
www.murata-ps.com/rohs
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MDC_UWE-100-120W.C05
Page 1 of 35
UWE-100-120W Series
Wide Input, Isolated Eighth-Brick DC-DC Converters
SPECIFICATION SUMMARY AND ORDERING GUIDE
➁➂
Output
V
out
(V)
➃
3.3
5
12
12
Input
Regulation (%)
Line
±0.2
±0.1
±0.15
±0.15
Load
±0.2
±0.2
±0.075
±0.075
Efficiency
Root Model
UWE-3.3/30-Q48-C
UWE-5/20-Q48-C
UWE-12/10-Q48-C
UWE-12/10-Q12-C
I
out
(A)
30
20
10
10
Power
(W)
99
100
120
120
R/N (mVp-p)
Typ.
90
75
115
115
Max.
125
110
200
200
I
in
,
min I
in
,
full
load
V
in
Nom. Range load
(mA)
(A)
Min.
(V)
(V)
48
48
48
12
18-75
18-75
18-75
9-36
90
100
110
260
2.30
2.30
2.732
Dimensions
Typ.
Case
(Inches)
Case (mm)
88% 89.5% 2.3x0.9x0.39 58.42x22.86x9.91
89% 90.5% 2.3x0.9x0.39 58.42x22.86x9.91
90% 91.5% 2.3x0.9x0.39 58.42x22.86x9.91
10.95 89.5% 91.3% 2.3x0.9x0.34 58.42x22.86x8.64
Please refer to the part number structure for additonal ordering model numbers and options.
All specifications are typical at nominal line voltage, nominal output voltage and full load, +25°C
unless otherwise noted. See detailed specifications.
External capacitors used for testing: with appropriate voltage and current ratings, output
capacitors are 1 µF in parallel with 10 µF. Input cap is 33 µF. All caps are low ESR types. Contact
Murata Power Solutions for details.
I/O caps are necessary for our test equipment. The values and number of capacitors may be
modified depending on the application.
PART NUMBER STRUCTURE
U W E
-
12
/
10
-
Q48 N B H LX
-
C
Unipolar, Single-Output
RoHS Hazardous Materials Compliance
C=RoHS-6, standard (does not claim EU RoHS exemption 7b–lead in solder)
Pin Length Option
Blank = Standard pin length 0.19 inches (4.8mm)
L1 = Pin length 0.110 inches (2.79mm)*
L2 = Pin length 0.145 inches (3.68mm)*
Conformal Coating Option
*Minimum
order quantity is required.
Blank = No coating, standard
Samples available with standard pin length only.
H = Coating added, optional*
(built to order; contact Murata Power Solutions for MOQ and lead times.)
Baseplate (optional)
Blank = No baseplate
B = Baseplate installed
On/Off Control Logic Option
N = Negative logic
P = Positive logic
Note:
Some model number combinations may
not be available.
See website or contact your local Murata
sales representative.
Wide Input Range
Eighth-Brick Package
Nominal Output Voltage
Maximum Rated Output
Current in Amps
Input Voltage Range
Q48 = 18-75 Volts
Q12 = 9-36 Volts (12Vout only)
Customer Configured Part Numbers:
1. UWE-31311-C (special version of the UWE-12/10-Q48NB-C)
a. Includes conformal coating
b. Isolation tested to 2,828Vdc Input-to-Output per IEEE 1613
c. Pin length of 0.180 inches ±0.02 (4.6mm ±0.508)
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MDC_UWE-100-120W.C05
Page 2 of 35
UWE-100-120W Series
Wide Input, Isolated Eighth-Brick DC-DC Converters
FUNCTIONAL SPECIFICATIONS, UWE-3.3/30-Q48
ABSOLUTE MAXIMUM RATINGS
Input Voltage, Continuous
Input Voltage, Transient
Isolation Voltage
Input Reverse Polarity
On/Off Remote Control
Output Power
Output Current
CONDITIONS AND COMMENTS
➀
Full power operation
Operating or non-operating,
100 mS max. duration
Input to output
None, install external fuse
Power on or off, referred to -Vin
MINIMUM
TYPICAL/NOMINAL
MAXIMUM
80
100
2250
None
0
0
15
99.99
UNITS
Vdc
Vdc
Vdc
Vdc
Vdc
W
Current-limited, no damage,
0
30
A
short-circuit protected
Storage Temperature Range
Vin = Zero (no power)
-55
125
°C
Absolute maximums are stress ratings. Exposure of devices to greater than 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 or recommended.
INPUT
CONDITIONS AND COMMENTS
➀ ➂
Operating voltage range
18
48
75
Vdc
Recommended External Fuse
Fast blow
12
A
Start-up threshold, Turn On
Rising input voltage
16.5
17
17.9
Vdc
Undervoltage shutdown, Turn Off
Falling input voltage
15.5
16.5
17.5
Vdc
Turn-On/Turn-Off Hysteresis
0.86
1.05
1.25
Vdc
Overvoltage shutdown
NA
Vdc
Reverse Polarity Protection
None, install external fuse
None
Vdc
Internal Filter Type
Pi-type
Input current
Full Load Conditions
Vin = nominal
2.304
2.367
A
Low Line
Vin = minimum
6.145
6.349
A
Inrush Transient
0.1
A
2
-Sec.
Short Circuit Input Current
150
200
mA
No Load Input Current
Iout = minimum, unit=ON
90
125
mA
Standby Mode Input Current (Off, UV, OT)
4
8
mA
no filtering
500
700
mA, P-P
Reflected (back) ripple current
➁
Measured at input with specified filter
50
70
mA, P-P
Reflected (back) ripple current
➁
Pre-biased startup
Monotonic
GENERAL AND SAFETY
Vin=24V, full load
89
90
%
Efficiency
Vin=min. to max.
87.5
89
%
Vin=48V, full load
88
89.5
%
Isolation
Isolation Voltage, input to output
No baseplate
2250
Vdc
Isolation Voltage, input to output
With baseplate
2250
Vdc
Isolation Voltage, input to baseplate
With baseplate
1500
Vdc
Isolation Voltage, output to baseplate
With baseplate
750
Vdc
Insulation Safety Rating
basic
Isolation Resistance
100
MΩ
Isolation Capacitance
1000
pF
Certified to UL-60950-1, CSA-C22.2 No.60950-1,
Yes
Safety
IEC/EN60950-1, 2nd edition (pending)
Per Telcordia SR332, issue 1, class 3, ground
TBD
Hours x 10
3
Calculated MTBF
fixed, Tambient=+40C
DYNAMIC CHARACTERISTICS
Fixed Switching Frequency
195
215
235
KHz
Startup Time
Power on, Vout regulated
20
30
mS
Startup Time
Remote ON to Vout regulated
10
20
mS
50-75-50% load step, settling time to within
Dynamic Load Response
50
200
µSec
2% of Vout.
Dynamic Load Peak Deviation
same as above
±500
mV
FEATURES AND OPTIONS
Remote On/Off Control
➃
“N” suffix:
Negative Logic, ON state
ON = Pin grounded or external voltage
0
1
V
Negative Logic, OFF state
OFF = Pin open or external voltage
3.5
15
V
Control Current
open collector/drain
1
2
mA
“P” suffix:
Positive Logic, ON state
ON = Pin open or external voltage
3.5
15
V
Positive Logic, OFF state
OFF = Ground pin or external voltage
0
0.8
V
Control Current
open collector/drain
1
2
mA
Base Plate
"B" suffix
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MDC_UWE-100-120W.C05
Page 3 of 35
UWE-100-120W Series
Wide Input, Isolated Eighth-Brick DC-DC Converters
FUNCTIONAL SPECIFICATIONS, UWE-3.3/30-Q48 (CONT.)
OUTPUT
Total Output Power
Voltage
Nominal Output Voltage
Settling Accuracy
Output Voltage Range
Overvoltage Protection
Current
Output Current Range
Minimum Load
Current Limit Inception
Short Circuit
Short Circuit Current
Short Circuit Duration
(remove short for recovery)
Short circuit protection method
Regulation
Line Regulation
Load Regulation
Ripple and Noise
➁
Temperature Coefficient
Maximum Capacitive Loading
MECHANICAL (THROUGH HOLE MODELS)
Outline Dimensions
(Please refer to outline drawing)
Weight (without baseplate)
Weight (with baseplate)
Through Hole Pin Diameter
Through Hole Pin Material
TH Pin Plating Metal and Thickness
Baseplate Material
ENVIRONMENTAL
Operating Ambient Temperature Range
Storage Temperature
Operating Base Plate Temp
Thermal Protection/Shutdown
Electromagnetic Interference
Conducted, EN55022/CISPR22
Radiated, EN55022/CISPR22
RoHS rating
Diameter of pins standard
0
No trim
At 50% load
User-adjustable (see trim formulas)
Via magnetic feedback
3.267
-1
-10
99
3.3
99.99
3.333
1
10
4.5
30
44
10
W
Vdc
% of Vset.
% of Vnom.
Vdc
A
A
A
3.8
0
30
35
5
Continuous
No minimum load
98% of Vnom., after warmup
Hiccup technique, autorecovery
within ±1% of Vout
Output shorted to ground, no damage
Hiccup current limiting
Vin=min. to max., Vout=nom., nom load
Iout=min. to max
5 Hz- 20 MHz BW
At all outputs
Low ESR
33
0
±0.2
±0.2
90
0.02
4700
2.3x.9x.39
58.42x22.86x9.91
0.7
20
1.29
36.5
0.062 & 0.04
1.575 & 1.016
Copper alloy
50
5
Aluminum
125
10,000
% of Vout
% of Vout
mV pk-pk
% of Vout./°C
μF
Inches
mm
Ounces
Grams
Ounces
Grams
Inches
mm
µ-inches
µ-inches
LxWxH
Nickel subplate
Gold overplate
See derating
Vin = Zero (no power)
No derating required
Measured at hotspot
External filter is required
-40
-55
-40
135
140
B
B
RoHS-6
85
125
100
150
°C
°C
°C
Class
Class
Notes
➀
Unless otherwise noted, all specifications are at nominal input voltage, nominal output voltage and
full load.
General conditions are +25˚ Celsius ambient temperature, near sea level altitude, airflow of
300lfm for extended operation time.
All models are tested and specified with external parallel 1 µF and 10 µF output capacitors.
A 33µF external input capacitor with appropriate voltage and current rating is used. All capacitors
are low-ESR types wired close to the converter. The values and number of capacitors may be
modified depending on the application.
➁
Input (back) ripple current is tested and specified over 5 Hz to 20 MHz bandwidth. Input filtering is
Cbus=220 µF, Cin=33 µF and Lbus=12 µH.
➂
All models are stable and regulate to specification under no load.
➃
The Remote On/Off Control is referred to -Vin. For external transistor control, use open collector
logic or equivalent.
➄
NOTICE—Please use only this customer data sheet as product documentation when laying out your
printed circuit boards and applying this product into your application. Do NOT use other materials as
official documentation such as advertisements, product announcements, or website graphics.
We strive to have all technical data in this customer data sheet highly accurate and complete. This cus-
tomer data sheet is revision-controlled and dated. The latest customer data sheet revision is normally
on our website (www.murata-ps.com) for products which are fully released to Manufacturing. Please be
especially careful using any data sheets labeled “Preliminary” since data may change without notice.
Please be aware of small details that may affect your application and PC board layouts. Study the
Mechanical Outline drawings, Input/Output Connection table and all footnotes very carefully. Please
contact Murata Power Solutions if you have any questions.
➅
If reverse polarity is accidentally applied to the input, to ensure reverse input protection, always
connect an external input fuse in series with the +V
IN
input. Use approximately twice the full input
current rating with nominal input voltage.
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MDC_UWE-100-120W.C05
Page 4 of 35
UWE-100-120W Series
Wide Input, Isolated Eighth-Brick DC-DC Converters
PERFORMANCE DATA, UWE-3.3/30-Q48
Efficiency vs. Line Voltage and Load Current @ 25°C
95
91
87
13
Power Dissipation vs. Line and Load
11
Dissipation (Watts)
83
Efficiency (%)
79
75
71
67
63
59
55
1
2
3
4
5
9
7
Vin = 18V
Vin = 24V
Vin = 36V
Vin = 48V
Vin = 60V
Vin = 75V
5
3
1
Vin = 18V
Vin = 24V
Vin = 36V
Vin = 48V
Vin = 60V
Vin = 75V
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
6
7
8
9
10
Load Current (Amps)
Load Current (Amps)
Maximum Current Temperature Derating @ sea level
(V
in
= 24V, air flow from Pin 3 to Pin 1, no baseplate)
31
30
29
28
27
Output Current (Amps)
26
25
24
23
22
21
20
19
18
17
16
30
35
40
45
50
55
60
65
70
75
80
85
Ambient Temperature (°C)
0.33 m/s (65 LFM)
0.5 m/s (100 LFM)
1.0 m/s (200 LFM)
1.5 m/s (300 LFM)
2.0 m/s (400 LFM)
Maximum Current Temperature Derating @sea level
(V
in
= 24V, air flow from Pin 3 to Pin 1, with baseplate)
31
30
29
28
27
Output Current (Amps)
26
25
24
23
22
21
20
19
18
17
16
30
35
40
45
50
55
60
65
70
75
80
85
Ambient Temperature (°C)
0.33 m/s (65 LFM)
0.5 m/s (100 LFM)
1.0 m/s (200 LFM)
1.5 m/s (300 LFM)
2.0 m/s (400 LFM)
Maximum Current Temperature Derating @sea level
(V
in
= 48V, air flow from Pin 3 to Pin 1, no baseplate)
31
30
29
28
27
Output Current (Amps)
25
24
23
22
21
20
19
18
17
16
30
35
40
45
50
55
60
65
70
75
80
85
Ambient Temperature (°C)
0.33 m/s (65 LFM)
0.5 m/s (100 LFM)
1.0 m/s (200 LFM)
1.5 m/s (300 LFM)
2.0 m/s (400 LFM)
Output Current (Amps)
26
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
30
Maximum Current Temperature Derating @sea level
(V
in
= 48V, air flow from Pin 3 to Pin 1, with baseplate)
0.33 m/s (65 LFM)
0.5 m/s (100 LFM)
1.0 m/s (200 LFM)
1.5 m/s (300 LFM)
2.0 m/s (400 LFM)
35
40
45
50
55
60
65
70
75
80
85
Ambient Temperature (°C)
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MDC_UWE-100-120W.C05
Page 5 of 35
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