This data sheet contains core information only. Please click here for the full data sheet.
www.murata-ps.com
PRODUCT OVERVIEW
For efficient, fully isolated DC power in the small-
est space, Murata Power Solutions' UVQ series
quarter bricks offer output voltages from 1.5
to 48 Volts with currents up to 40 Amps. UVQs
operate over a wide temperature range (up to
+70°C at 200 lfm airflow) at full-rated power. The
optional mounting baseplate extends this to all
practical temperature ranges at full power.
UVQ’s achieve these impressive specifications
while delivering excellent electrical performance.
Overall noise is 35mVp-p (3.3V models) with fast
step response (down to 50μsec). These convert-
ers offer high stability even with no load and
tight output regulation. The unit is fully protected
against input over and undervoltage, output over-
current and short circuit. An on-board temperature
sensor shuts down the converter if thermal limits
are reached. Protection uses the “hiccup” (auto
restart) method.
UVQ Series
Low Profile, Isolated Quarter Brick
2.5–40 Amp DC/DC Converters
A convenient remote On/Off control input oper-
ates by external digital logic, relay or transistor
input. To compensate for longer wiring and to
retain output voltage accuracy at the load, UVQ’s
include a Sense input to dynamically correct for
ohmic losses. A trim input may be connected to a
user’s adjustment potentiometer or trim resis-
tors for output voltage calibration closer than the
standard accuracy.
UVQ’s include industry-standard safety
certifications and BASIC I/O insulation provides
2250 Volt input/output isolation. Radiation emis-
sion testing is performed to widely-accepted
EMC standards. The UVQ’s may be considered
as higher performance replacements for some
Murata Power Solutions USQ models.
Typical unit
FEATURES
■
■
■
■
■
■
■
■
■
■
■
Standard quarter-brick package/pinout
Outputs from 1.5 to 48V up to 125W
Low profile 0.42" height
24 and 48Vdc nominal inputs
Fully isolated, 2250Vdc (BASIC) insulation
Designed for RoHS-6 compliance
Output overvoltage/short-circuit protected
On/Off control, trim and sense functions
High efficiency to 92%
Protected against temp. and voltage limits
Designed to meet UL/IEC/EN60950-1 safety
approvals
Contents of full data sheet
Description, Photograph, Connection Diagram
Performance Specs and Ordering Guide, Pin 9 Option
Model Numbering, Ordering Guide Summary
Mechanical Specs, Input/Output Pinout
Detailed Electrical Specifications
Technical Notes
Soldering Guidelines
Performance Data
Page
1
2
3
4
5
11
13
17
+SENSE
(7)
+V
OUT
(8)
+V
IN
(3)
Baseplate
(9)
Optional
SWITCH
CONTROL
–V
OUT
(4)
–V
IN
(1)
–SENSE
(5)
PWM
CONTROLLER
OPTO
ISOLATION
REFERENCE &
ERROR AMP
V
OUT
TRIM
(6)
INPUT UNDERVOLTAGE, INPUT
OVERVOLTAGE, AND OUTPUT
OVERVOLTAGE COMPARATORS
REMOTE
ON/OFF
CONTROL*
(2)
* Can be ordered with positive (standard) or negative (optional) polarity.
Typical configuration — some models use a different topology
Figure 1. Simplified Schematic
For full details go to
www.murata-ps.com/rohs
www.murata-ps.com
email: sales@murata-ps.com
18 Sep 2009 MDC_UVQ Models.B15_short
Page 1 of 4
This data sheet contains core information only. Please click here for the full data sheet.
UVQ Series
Low Profile, Isolated Quarter Brick
2.5–40 Amp DC/DC Converters
Performance Specifications and Ordering Guide
➀
ORDERING GUIDE
Output
V
OUT
(Volts)
1.5
2.5
3.3
5
12
15
18
24
48
I
OUT
Power
(Amps) (Watts)
40
35
40
30
35
20
8
10
7
5.6
6
4.5
2.5
60
87.5
100
99
115.5
100
96
120
105
100.8
108
R/N (mVp-p)
Typ.
30
Max.
60
60
60
65
40
50
25
130
160
150
150
185
185
100
130
200
375
Regulation (Max.)
➂
Line
±0.075%
±0.05%
±0.05%
±0.1%
±0.05%
±0.05%
±0.05%
±0.1%
±0.075%
±0.05%
±0.05%
±0.05%
±0.05%
±0.075%
±0.075%
±0.1%
±0.175%
Load
±0.05%
±0.05%
±0.05%
±0.25%
±0.25%
±0.05%
±0.05%
±0.1%
±0.05%
±0.05%
±0.02%
±0.075%
±0.075%
±0.15%
±0.25%
±0.2%
±0.2%
V
IN
Nom.
(Volts)
24
24
48
24
48
24
48
24
48
24
48
24
48
24
48
24
48
Input
Range I
IN
, No Load I
IN
, Full Load
(Volts)
(mA)
(Amps)
18-36
18-36
36-75
18-36
36-75
18-36
36-75
18-36
36-75
18-36
36-75
18-36
36-75
18-36
36-75
18-36
36-75
80
100
100
180
130
180
80
90
60
103
60
140
80
45
45
45
30
2.84
4.14
2.37
4.58
2.7
4.53
2.31
4.4
2.78
4.85
2.39
4.69
2.5
5.03
2.49
4.4
2.71
Efficiency)
Min.
86.5%
86%
87%
88.5%
87%
91%
88.5%
89%
88.5%
88.5%
90%
88%
88.3%
88%
89%
89%
91%
Typ.
88%
88%
88%
90%
89%
92%
90%
91%
90%
90.3%
91.5%
89.5%
90%
89.5%
90.5%
91%
92.3%
Package
(Case,
Pinout)
Root Models
UVQ-1.5/40-D24P-C
UVQ-2.5/35-D24P-C
UVQ-2.5/40-D48N-C
UVQ-3.3/30-D24P-C
➁
UVQ-3.3/35-D48N-C
➁
UVQ-5/20-D24P-C
UVQ-5/20-D48N-C
UVQ-12/8-D24P-C
UVQ-12/10-D48N-C
UVQ-15/7-D24P-C
UVQ-15/7-D48N-C
UVQ-18/5.6-D24P-C
UVQ-18/6-D48N-C
UVQ-24/4.5-D24P-C
UVQ-24/4.5-D48N-C
UVQ-48/2.5-D24P-C
UVQ-48/2.5-D48N-C
35
120
30
20
95
110
85
120
125
125
60
75
100
250
C59, P32
c
These are partial model numbers. Please refer to the full model number struc-
ture for complete ordering part numbers.
d
Min. I
OUT
= 3 Amps for UVQ-3.3 Vout models.
e
All specifications are at nominal line voltage and full load, +25°C unless other-
wise noted. See detailed specifications.
Output capacitors are 1uF ceramic || 10 uF electrolytic. Input cap is 22 uF, low
ESR, except UVQ-24/4.5 is 33uF and UVQ-48/2.5 uses no input cap. I/O caps are
necessary for our test equipment and may not be needed for your application.
f
I
OUT
= 14 Amps max. with V
IN
= 18-19.5 Volts.
UVQ Pin 9 Baseplate Connection
The UVQ series may include an optional installed baseplate for extended
thermal management. Various UVQ models (see list below) are also available
with an additional pin 9 on special order which connects to the baseplate but is
electrically isolated from the rest of the converter. Please refer to the mechani-
cal drawings.
Pin 9 offers a positive method of controlling the electrical potential of the
baseplate, independent of the converter. Some baseplate models cannot
include pin 9 and in such cases, the baseplate is grounded by the mounting
bolts. Or consider adding an external lugged washer with a grounding terminal.
The baseplate may be ordered by adding a “B” to the model number tree
and pin 9 will be pre-installed by adding a “9”. The two options are separate.
Please refer to the Ordering Guide. Do not order pin 9 without the baseplate.
Note that “pin 9” converters may be on limited forecast, requiring minimum
order quantities and scheduled deliveries.
Models available with Pin 9:
UVQ-12/10-D48
UVQ-1.5/40-D24
Models which are NOT available with Pin 9:
UVQ-5/20-D24 and –D48
UVQ-3.3/30-D24
UVQ-3.3/35-D48
UVQ-2.5/35-D24
UVQ-2.5/40-D48
Other models which are not listed will be reviewed for future pin 9 accomo-
dation.
www.murata-ps.com
email: sales@murata-ps.com
18 Sep 2009 MDC_UVQ Models.B15_short
Page 2 of 4
This data sheet contains core information only. Please click here for the full data sheet.
UVQ Series
Low Profile, Isolated Quarter Brick
2.5–40 Amp DC/DC Converters
PART NUMBER STRUCTURE
U VQ
-
3.3
/
20
-
D48 N B 9 LX
-
C
RoHS-6 hazardous substance compliant
Output Configuration
U = Unipolar/Single
(does
not claim EU RoHS exemption 7b–lead in solder)
Alternate Pin Length:
(special quantity order)
Blank =
Standard pin length
L1
= 0.110 (2.79mm)
L2
=
0.145 (3.68mm)
Quarter-Brick Package
Nominal Output Voltage
1.2 to 48 Volts
Baseplate Pin 9, see Mechanical Drawings:
(special order)
Blank =
No pin 9, standard
9
= Pin 9 installed (see description on pg. 2), optional
Blank =
No baseplate, standard
B =
Baseplate installed, optional special order
Maximum Rated Output
Current in Amps
Input Voltage Range:
D24 = 18-36 Volts (24V nominal)
D48 = 36-75 Volts (48V nominal)
Remote On/Off Control Polarity:
Some model number combinations may not be
Add "P" for positive polarity
available. Contact Murata Power Solutions.
Add "N" for negative polarity
Positive "P" polarity is standard for D24 models and
optional special order for D48 models. Negative "N"
polarity is standard for D48 models and optional special
order for D24 models.
* Note:
ORDERING GUIDE SUMMARY
Model
V
OUT
Range
All Models
1.2V to 48V
INPUT CHARACTERISTICS
Parameter
Voltage Range
Current, full power
Isolation
Remote On/Off Control
OUTPUT CHARACTERISTICS
Parameter
Voltage
Current
Accuracy
Ripple & Noise (to 20MHz)
Line and Load Regulation
Overcurrent Protection
Overtemperature Protection
Efficiency (minimum)
GENERAL SPECIFICATIONS
Parameter
Dynamic Load Response
Operating Temperature Range
Safety
I
OUT
Range
2.5A to 40A
V
IN
Range
18-36V or 36-75V
Efficiency
Up to 92.%, model dependent
Typ. @ 25°C, full load
18-36 or 36-75 Volts
Up to 5.6 Amps
2kVdc to 2250V
Switch or FET control
Typ. @ 25°C, full load
1.5 to 48 Volts ±10%
2.5 to 40 Amps fullscale
Down to 1% of V
NOM
Down to 35mVp-p
Down to ±0.125%/±0.25%
150% of I
OUT
max.
+125°C
See Performance Specifications
Notes
24V or 48V nominal
Model dependent
Model dependent
Positive or negative logic
Notes
Trimmable
No minimum load
Most models
Model dependent
Model dependent
With hiccup auto-restart
Typ. @ 25°C, full load
Down to 50μsec
–40 to +110°C
UL/IEC/EN 60950-1
Notes
Model dependent
With baseplate, see derating curve
and CSA C22.2-No.234
MECHANICAL CHARACTERISTICS
With baseplate
1.45 x 2.30 x 0.5 inches (36.83 x 58.42 x 12.7 mm)
Without baseplate
1.45 x 2.30 x 0.42 inches (36.83 x 58.42 x 10.67 mm)
See Performance Specifications, page 2
www.murata-ps.com
email: sales@murata-ps.com
18 Sep 2009 MDC_UVQ Models.B15_short
Page 3 of 4
This data sheet contains core information only. Please click here for the full data sheet.
UVQ Series
Low Profile, Isolated Quarter Brick
2.5–40 Amp DC/DC Converters
Case C59
2.30 (58.4)
A
Case C59 with Baseplate
1.860 (47.2)
A
B
B
0.42
(10.7)
PINS 1-3, 5-7: 0.040 ±0.001 (1.016 ±0.025)
PINS 4 & 8: 0.060 ±0.001 (1.52 ±0.025)
0.188
(4.78)
1.030
(26.2)
1.45
(36.8)
2.00 (50.8)
A
B
B
#M3-THREAD X 0.15 DEEP
TYPICAL (4) PLACES
0.600
(15.24)
4 EQ. SP.
@ 0.150
(3.81)
BASEPLATE
1
2
3
4
5
6
7
8
1.45
(36.8)
0.50
(12.7)
BOTTOM VIEW
PINS 1-3, 5-7: 0.040 ±0.001 (1.016 ±0.025)
PINS 4 & 8: 0.060 ±0.001 (1.52 ±0.025)
Alternate pin lengths are available. Contact Murata Power Solutions.
0.188
(4.8)
Dimensions are in inches (mm) shown for ref. only.
Third Angle Projection
2.30 (58.4)
A
A
0.15 (3.81)
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
1
2
3
4
5
6
7
8
Function P32
–Input
On/Off Control
+Input
–Output
–Sense
Output Trim
+Sense
+Output
Important: If sense inputs
are not connected to a
remote load, connect them
to their respective V
OUT
pins
at the converter.
1
9
2
3
Optional pin 9 connects
to baseplate. Electrically
isolated from converter.
4
5
6
7
8
B
0.600 (15.24)
4 EQ. SP.
@ 0.150 (3.81)
Optional baseplate pin
is special order.
Contact Murata Power Solutions..
2.00 (50.8)
BOTTOM VIEW
Murata Power Solutions, Inc.
11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A.
ISO 9001 and 14001 REGISTERED
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.
© 2009 Murata Power Solutions, Inc.
www.murata-ps.com/locations
email: sales@murata-ps.com
18 Sep 2009 MDC_UVQ Models.B15_short
Page 4 of 4
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