UVQ Series
www.murata-ps.com
Low Profile, Isolated Quarter Brick
2.540 Amp DC-DC Converters
PRODUCT OVERVIEW
For efficient, fully isolated DC power in the small- A convenient remote On/Off control input oper-
est space, Murata Power Solutions' UVQ series ates by external digital logic, relay or transistor
quarter bricks offer output voltages from 1.5 input. To compensate for longer wiring and to
to 48Volts with currents up to 40 Amps. UVQs retain output voltage accuracy at the load, UVQs
operate over a wide temperature range (up to include a Sense input to dynamically correct for
+70C at 200 lfm airflow) at full-rated power. The ohmic losses. A trim input may be connected to a
optional mounting baseplate extends this to all users adjustment potentiometer or trim resis-
practical temperature ranges at full power. tors for output voltage calibration closer than the
UVQs achieve these impressive specifications standard accuracy.
while delivering excellent electrical performance. UVQs include industry-standard safety certifica-
Typical unit
Overall noise is 35mVp-p (3.3V models) with fast tions and BASIC I/O insulation provides 2250 Volt
step response (down to 50sec). These convert- input/output isolation. Radiation emission testing
FEATURES ers offer high stability even with no load and is performed to widely-accepted EMC standards.
tight output regulation. The unit is fully protected The UVQs may be considered as higher perfor-
Standard quarter-brick package/pinout
against input over and undervoltage, output over- mance replacements for some Murata Power
Outputs from 1.5 to 48V up to 125W
current and short circuit. An on-board temperature Solutions USQ models.
Low profile 0.42" height
sensor shuts down the converter if thermal limits
are reached. Protection uses the hiccup (auto
24 and 48Vdc nominal inputs
restart) method.
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
+SENSE
(7)
+VOUT
+VIN
(1) (8)
Baseplate
(9) SWITCH
Optional CONTROL
VOUT
(4)
VIN
(3)
SENSE
(5)
PWM OPTO REFERENCE &
CONTROLLER ISOLATION ERROR AMP
VOUT
TRIM
(6)
INPUT UNDERVOLTAGE, INPUT
OVERVOLTAGE, AND OUTPUT
OVERVOLTAGE COMPARATORS
* Can be ordered with positive (standard) or negative (optional) polarity.
REMOTE
ON/OFF
CONTROL* Typical configuration some models use a different topology
(2)
For full details go to
www.murata-ps.com/rohs Figure 1. Simplified Schematic
www.murata-ps.com/support
MDC_UVQ Models.F07 Page 1 of 25UVQ Series
Low Profile, Isolated Quarter Brick
2.540 Amp DC-DC Converters
PERFORMANCE SPECIFICATIONS SUMMARY AND ORDERING GUIDE
Output Input
Package
R/N (mVp-p) Regulation (Max.) Efficiency)
Vout Iout Power Vin Nom. Range Iin , No Load Iin , Full Load (Case,
Root Models (Volts) (Amps) (Watts) Typ. Max. Line Load (Volts) (Volts) (mA) (Amps) Min. Typ. Pinout)
UVQ-1.5/40-D24P-C 1.5 40 60 30 60 0.075% 0.05% 24 18-36 80 2.84 86.5% 88%
UVQ-2.5/35-D24P-C 35 87.5 60 0.05% 0.05% 24 18-36 100 4.14 86% 88%
2.5
UVQ-2.5/40-D48N-C 40 100 60 0.05% 0.05% 48 36-75 100 2.37 87% 88%
35
UVQ-3.3/30-D24P-C 30 99 65 0.1% 0.25% 24 18-36 180 4.58 88.5% 90%
3.3
UVQ-3.3/35-D48N-C 35 115.5 40 0.05% 0.25% 48 36-75 130 2.7 87% 89%
UVQ-5/20-D24P-C 30 50 0.05% 0.05% 24 18-36 190 4.53 91% 92%
5 20 100
UVQ-5/20-D48N-C 20 25 0.05% 0.05% 48 36-75 80 2.31 88.5% 90%
UVQ-12/8-D24P-C 8 96 95 130 0.1% 0.1% 24 18-36 90 4.4 89% 91%
12
UVQ-12/10-D48N-C 10 120 110 160 0.075% 0.05% 48 36-75 60 2.78 88.5% 90% C59, P32
UVQ-15/7-D24P-C 85 150 0.05% 0.05% 24 18-36 103 4.85 88.5% 90.3%
15 7 105
UVQ-15/7-D48N-C 120 150 0.05% 0.02% 48 36-75 60 2.39 90% 91.5%
UVQ-18/5.6-D24P-C 5.6 100.8 125 185 0.05% 0.075% 24 18-36 140 4.69 88% 89.5%
18
UVQ-18/6-D48N-C 6 125 185 0.05% 0.075% 48 36-75 80 2.5 88.3% 90%
UVQ-24/4.5-D24P-C 108 60 100 0.075% 0.15% 24 18-36 45 5.03 88% 89.5%
24 4.5
UVQ-24/4.5-D48N-C 75 130 0.075% 0.25% 48 36-75 45 2.49 89% 90.5%
UVQ-48/2.5-D24P-C 100 200 0.1% 0.2% 24 18-36 45 4.4 89% 91%
48 2.5 120
UVQ-48/2.5-D48N-C 250 375 0.175% 0.2% 48 36-75 30 2.71 91% 92.3%
These are partial model numbers. Please refer to the full model number struc- Output capacitors are 1uF ceramic || 10 uF electrolytic. Input cap is 22 uF, low
ture for complete ordering part numbers. 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.
Min. Iout = 3 Amps for UVQ-3.3 Vout models.
Iout = 14 Amps max. with Vin = 18-19.5 Volts.
All specifications are at nominal line voltage and full load, +25 C unless other-
wise noted. See detailed specifications.
UVQ-12/10-D48NB-C UVQ-15/7-D48NB-C UVQ-18/6-D48P-C
UVQ-12/10-D48N-C UVQ-15/7-D48N-C UVQ-5/20-D24NB-C
UVQ-12/10-D48PB-C UVQ-15/7-D48PB-C UVQ-5/20-D24N-C
UVQ-12/10-D48P-C UVQ-15/7-D48P-C UVQ-5/20-D48NB-C
UVQ-12/10-D48PL2-C UVQ-18/6-D48NB-C UVQ-5/20-D48N-C
UVQ-15/7-D48NB9-C UVQ-18/6-D48N-C UVQ-5/20-D48PB-C
UVQ-15/7-D48NB9L2-C UVQ-18/6-D48PB-C UVQ-5/20-D48P-C
Model UVQ-31128-C is a standard model UVQ-5/20-D48NB-C with modified rise time to reach 4.75V within 10 mSec. All other specifications are as per the
standard product.
UVQ Pin 9 Baseplate Connection
The UVQ series may include an optional installed baseplate for extended UVQ-12/10-D48
thermal management. Various UVQ models (see list below) are also available UVQ-1.5/40-D24
with an additional pin 9 on special order which connects to the baseplate but is Models which are NOT available with Pin 9:
electrically isolated from the rest of the converter. Please refer to the mechani- UVQ-5/20-D24 and D48
cal drawings. UVQ-3.3/30-D24
Pin 9 offers a positive method of controlling the electrical potential of the UVQ-3.3/35-D48
baseplate, independent of the converter. Some baseplate models cannot UVQ-2.5/35-D24
include pin 9 and in such cases, the baseplate is grounded by the mounting UVQ-2.5/40-D48
bolts. Or consider adding an external lugged washer with a grounding terminal. Other models which are not listed will be reviewed for future pin 9 accomo-
The baseplate may be ordered by adding a B to the model number tree dation.
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:
www.murata-ps.com/support
MDC_UVQ Models.F07 Page 2 of 25