Datasheet

ManualsBrandsMURATA POWER SOLUTIONS ManualsPSU ComponentsDC/DC converter (print) 3.3 V 4.25 A 15 W No. of outputs: 1 x

Figure 1. Simpliﬁ ed Schematic

COMMON

(6)

(1)

–V

(2)

PWM

CONTROLLER

OPTO

ISOLATION

REFERENCE &

ERROR AMP

COMPARATORS

UVLO & OVLO

ON/OFF

CONTROL

(3)

(OPTIONAL)

TRIM

(5)

(OPTIONAL)

OUT

(4)

SWITCH

CONTROL

Typical topology is shown.

Typical units

FEATURES



1.2-2.5VOUT models source 6 Amps



3.3VOUT models source 4.25 Amps



5/12/15VOUT models deliver full 15 Watts



Synchronous-rectiﬁ er topologies



Guaranteed efﬁ ciencies to 88%



Choice of 3 input voltage ranges:

10-18V, 18-36V, 36-75V



–40 to +60/70C ambient w/o derating



Fully isolated (1500Vdc); I/O protected



Meets UL/IE/EN60950-1 certiﬁ cation,

2nd Edition



CE mark (75VIN models)



Standard 1" x 2" packages and pinouts



Optional VOUT trim and on/off control

The new 1.2, 1.5V, 1.8V and 2.5V models in

Murata Power Solutions’ ﬂ agship 7-15 Watt

A-Series can source a continuous 6 Amps. This

is the most "low-voltage" current available from

a standard 1" x 2" package, and these power

converters exemplify Murata Power Solutions’

relentless drive to bring you more power/current,

from standard packages, without compromising

reliability or resorting to thermal specmanship.

By combining a high-frequency, high-efﬁ ciency

(to 88%), synchronous-rectiﬁ er topology with

the newest components and time-tested, fully

automated, SMT-on-pcb construction, these

UWR Models are able to bring you 7-15W (@

up to 6A) in the standard 1" x 2" package from

which most competitors can only get 5-10W (@

3-4A). All UWR’s deliver their full output power

over ambient temperature ranges from –40°C

to as high as +70°C (model and input voltage

dependent) without heat sinks or supplemental

forced-air cooling. Devices derate to +100°C.

Output voltages are 1.2, 1.5, 1.8, 2.5, 3.3, 5,

12 or 15 Volts. Input voltage ranges are 10-18V

(D12 models), 18-36V (D24 models) or 36-75V

(D48 models). All models feature input pi ﬁ lters,

input undervoltage and overvoltage lockout, input

reverse-polarity protection, output overvoltage

protection, output current limiting, and continuous

short-circuit protection. On/off control and output-

trim functions are optional (see Optional Functions).

All models are designed to meet IEC950, UL1950

and EN60950-1, 2nd Edition safety requirements.

D48models (36-75V inputs) are CE marked.

UWR 7-15W DC/DC’s are packaged in low-

cost, light-weight, diallyl phthalate (UL94V-0

rated) plastic packages with standoffs. EMC

compliance is achieved via a low-noise design

rather than through expensive metal shielding.

PRODUCT OVERVIEW

A-

www.murata-ps.com

www.murata-ps.com/support

For full details go to

www.murata-ps.com/rohs

UWR Models

Single Output,

High-Density,

6 Amp/15 Watt

DC/DC Converters

MDC_UWR_7-15.I02 Page 1 of 13

Summary of content (13 pages)

PAGE 1
UWR Models www.murata-ps.com Single Output, High-Density, 6 Amp/15 Watt DC/DC Converters Typical units PRODUCT OVERVIEW PR FEATURES  1.2-2.5VOUT models source 6 Amps  3.3VOUT models source 4.
PAGE 2
UWR Models Single Output, High-Density, 6 Amp/15 Watt DC/DC Converters Performance Specifications and Ordering Guide ➀ ORDERING GUIDE Output Root Model ➆ To Be Discontinued* R/N (mV p-p) ➁ Input Regulation (max.) Vout (Volts) Iout (mA) Typ. Max. UWR-1.2/6000-D12A-C UWR-1.2/6000-D24A-C UWR-1.2/6000-D48A-C UWR-1.5/6000-D12A-C UWR-1.5/6000-D24A-C UWR-1.5/6000-D48A-C UWR-1.8/6000-D12A-C UWR-1.8/6000-D24A-C UWR-1.8/6000-D48A-C UWR-2.5/6000-D12A-C UWR-2.5/6000-D24A-C UWR-2.5/6000-D48A-C UWR-3.
PAGE 3
UWR Models Single Output, High-Density, 6 Amp/15 Watt DC/DC Converters Performance/Functional Specifications Typical @ TA = +25°C under nominal line voltage and full-load conditions, unless noted. ➀➁ Input Input Voltage Range: D12A Models D24A Models D48A Models 10-18 Volts (12V nominal) 18-36 Volts (24V nominal) 36-75 Volts (48V nominal) Overvoltage Shutdown: D12A Models D24A Models D48A Models 18.5-21 Volts (20V typical) 37-41 Volts (38V typical) 77-81 Volts (78.
PAGE 4
UWR Models Single Output, High-Density, 6 Amp/15 Watt DC/DC Converters Floating Outputs Since these are isolated DC/DC converters, their outputs are "ﬂoating." Designers will usually use the output Common (pin 6) as the ground/return of the load circuit. You can, however, use the +Output (pin 4) as ground/return to effectively reverse the output polarity. Minimum Output Loading Requirements 1.2 to 5V models employ a synchronous-rectiﬁer design topology.
PAGE 5
UWR Models Single Output, High-Density, 6 Amp/15 Watt DC/DC Converters Model UWR-1.2/6000-D12A UWR-1.2/6000-D24A UWR-1.2/6000-D48A Trim Equation RTDOWN (k7) = 5.32(VO – 0.7) 1.2 – VO 3.73 VO – 1.2 RTUP (k7) = UWR-1.5/6000-D12A UWR-1.5/6000-D24A UWR-1.5/6000-D48A RTDOWN (k7) = UWR-1.8/6000-D12A UWR-1.8/6000-D24A UWR-1.8/6000-D48A RTDOWN (k7) = UWR-2.5/6000-D12A UWR-2.5/6000-D24A UWR-2.5/6000-D48A RTDOWN (k7) = UWR-3.3/4250-D12A UWR-3.3/4250-D24A UWR-3.3/4250-D48A RTDOWN (k7) = 1.968 VO – 1.5 1.
PAGE 6
UWR Models Single Output, High-Density, 6 Amp/15 Watt DC/DC Converters Temperature Derating Curves for UWR 7-15W A-Series D12A (10-18V) Temperature Derating D24A and D48A Temperature Derating for 1.5V Output Models 10 9 VIN = 18V-27V (D24A) VIN = 36V-48V (D48A) 8 7 Output Power (Watts) The thermal performance of A-Series UWR 7-15 Watt DC/DC Converters is depicted in the derating curves shown below.
PAGE 7
UWR Models Single Output, High-Density, 6 Amp/15 Watt DC/DC Converters Typical Performance Curves for UWR 7-15W A-Series UWR-1.8/6000-D12A Efficiency vs. Line and Load UWR-1.5/6000-D12A Efficiency vs. Line and Load 85 90 80 85 75 80 65 Efficiency (%) Efficiency (%) 70 VIN = 10V 60 55 VIN = 12V 50 VIN = 10V 70 65 VIN = 12V 60 VIN = 18V 55 VIN = 18V 45 75 50 40 35 0.6 1.2 1.8 2.4 3 3.6 4.2 4.8 5.4 45 0.6 6 1.2 1.
PAGE 8
UWR Models Single Output, High-Density, 6 Amp/15 Watt DC/DC Converters Typical Performance Curves for UWR 7-15W A-Series UWR-3.3/4250-D12A Efficiency vs. Line and Load 90 85 85 80 80 75 75 Efficiency (%) Efficiency (%) UWR-2.5/6000-D12A Efficiency vs. Line and Load 90 VIN = 10V 70 65 VIN = 12V 60 VIN = 18V 55 VIN = 10V 70 65 VIN = 12V 60 VIN = 18V 55 50 50 45 0.6 45 1.2 1.8 2.4 3 3.6 4.2 4.8 5.4 6 0.4 0.9 1.
PAGE 9
UWR Models Single Output, High-Density, 6 Amp/15 Watt DC/DC Converters Typical Performance Curves for UWR 7-15W A-Series UWR-5/3000-D12A Efficiency vs. Line and Load 90 85 80 75 Efficiency (%) %FFICIENCY 572 $ !.4 %FFICIENCY VS ,INE AND ,OAD 6). 6 6). 6 VIN = 10V 70 VIN = 12V 65 60 55 VIN = 18V 6). 6 50 45 40 0.3 0.6 1.0 ,OAD #URRENT !MPS 1.3 1.7 2 2.3 2.7 3 2.
PAGE 10
UWR Models Single Output, High-Density, 6 Amp/15 Watt DC/DC Converters Typical Performance Curves for UWR 7-15W A-Series UWR-12/1250-D48A Efficiency vs. Line and Load UWR-15/1000-D48A Efficiency vs. Line and Load 90 90 85 85 80 75 Efficiency (%) Efficiency (%) 80 VIN = 36V 70 VIN = 48V 65 VIN = 75V VIN = 36V 75 VIN = 48V 70 VIN = 75V 65 60 60 55 50 55 0.1 0.2 0.4 0.5 0.7 0.8 1.0 1.1 1.3 Load Current (Amps) 0.1 0.2 0.3 0.4 0.6 0.7 0.8 0.
PAGE 11
UWR Models Single Output, High-Density, 6 Amp/15 Watt DC/DC Converters Typical Performance Curves for UWR 7-15W A-Series Output Ripple and Noise (PARD) Output Ripple and Noise (PARD) (VIN = nominal, VOUT = 2.5V @ 6A, two external 0.47μF output capacitors.) (VIN = nominal, VOUT = 12V @ 1.25A, two ext. 0.47μF output capacitors.) 20mV, 1μsec/div, 20MHz BW 20mV, 1μsec/div, 20MHz BW Output Ripple and Noise (PARD) Output Ripple and Noise (PARD) (VIN = nominal, VOUT = 3.3V @ 4.25A, two ext. 0.
PAGE 12
UWR Models Single Output, High-Density, 6 Amp/15 Watt DC/DC Converters PART NUMBER STRUCTURE L2 Trim the pin length to 0.145 ±0.010 inches (3.68 ±0.25mm). This option requires a minimum order quantity. -C RoHS-6 hazardous substance compliance (does not claim EU RoHS exemption 7b, lead in solder). U WR - 5 / 3000 - D48 A CT LX - C Output Configuration: U = Unipolar RoHS-6 Compliant* Optional Functions Wide Range Input Nominal Output Voltage: 1.2, 1.5, 1.8, 2.5, 3.
PAGE 13
UWR Models Single Output, High-Density, 6 Amp/15 Watt DC/DC Converters MECHANICAL SPECIFICATIONS 50.8 2.00 25.4 1.00 SIDE VIEW Pin 1 2 3 I/O Connections Function P22 Pin Function P22 +Vin 4 +Vout –Vin 5 Trim* On/Off Control* 6 Common 12.07 .475 *Pins 3 and 5 are optional. See Optional Functions and Technical Notes for details. Dimensions are in inches (mm) shown for ref. only. Third Angle Projection END VIEW 5.1 MIN .20 MIN PLASTIC CASE 6X Standard pin length is shown.