UVQ Series
www.murata-ps.com
Low Profile, Isolated Quarter Brick
2.5–40 Amp DC/DC Converters
ORDERING GUIDE SUMMARY
Model
VOUT Range
1.2V to 48V
IOUT Range
VIN Range
Efficiency
All Models
2.5A to 40A
18-36V or 36-75V
Up to 92.%, model dependent
INPUT CHARACTERISTICS
Parameter
Typ. @ 25°C, full load
Notes
Voltage Range
18-36 or 36-75 Volts
Up to 5.6 Amps
24V or 48V nominal
Model dependent
Current, full power
Isolation
2kVdc to 2250V
Model dependent
Typical unit
Remote On/Off Control
Switch or FET control
Positive or negative logic
OUTPUT CHARACTERISTICS
Parameter
FEATURES
Typ. @ 25°C, full load
1.5 to 48 Volts 10%
2.5 to 40 Amps fullscale
Down to 1% of VNOM
Notes
■
Standard quarter-brick package/pinout
Voltage
Trimmable
■
Outputs from 1.5 to 48V up to 125W
Current
No minimum load
Most models
■
Low profile 0.42" height
Accuracy
■
24 and 48Vdc nominal inputs
Ripple & Noise (to 20MHz)
Line and Load Regulation
Overcurrent Protection
Overtemperature Protection
Efficiency (minimum)
Down to 35mVp-p
Model dependent
Model dependent
With hiccup auto-restart
■
Fully isolated, 2250Vdc (BASIC) insulation
Down to 0.125%/ 0.25%
150% of IOUT max.
■
Designed for RoHS compliance
■
Output overvoltage/short-circuit protected
+125°C
■
On/Off control, trim and sense functions
See Performance Specifications
■
High efficiency to 92%
■
Protected against temp. and voltage limits
GENERAL SPECIFICATIONS
Parameter
■
Designed to meet UL/IEC/EN60950-1 safety
Typ. @ 25°C, full load
Down to 50μsec
Notes
approvals
Dynamic Load Response
Operating Temperature Range
Safety
Model dependent
–40 to +110°C
With baseplate, see derating curve
and CSA C22.2-No.234
UL/IEC/EN 60950-1
MECHANICAL CHARACTERISTICS
With baseplate
1.45 x 2.30 x 0.5 inches (36.83 x 58.42 x 12.7 mm)
1.45 x 2.30 x 0.42 inches (36.83 x 58.42 x 10.67 mm)
Without baseplate
See Performance Specifications, page 2
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 50ꢀsec). These converters
offer high stability even with no load and tight out-
put regulation. The unit is fully protected against
input over and undervoltage, output overcur-
rent and short circuit. An on-board temperature
sensor shuts down the converter if thermal limits
are reached. Protection uses the “hiccup” (auto
restart) method.
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 resistors
for output voltage calibration closer than the
standard accuracy.
UVQ’s include industry-standard safety certi-
fications and BASIC I/O insulation provides 2250
Volt input/output isolation. Radiation emission
testing is performed to widely-accepted EMC
standards. The UVQ’s may be considered as
higher performance replacements for some MPS
USQ models.
Pb
For full details go to
Lead-free
www.murata-ps.com/rohs
construction/attach
www.murata-ps.com
Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000
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