DRQ-12-42-D48 Datasheet, PDF (1/24 Pages) Murata Power Solutions Inc. – 500W Digital Fully Regulated Intermediate DC-DC Bus Converter

www.murata-ps.com
Typical unit
FEATURES
Fixed DC outputs, 11.5V @43.5A
Advanced Bus Converter industry standard
quarter-brick with digital PMBus™ interface
Optional five pin version (DOSA compatible
pinouts)
38 to 75 Volt DC input range (48 VDC nominal)
Remote ON/Off enable control
High efficiency (95.5%)
Stable no-load operation
Monotonic startup into pre-bias output condition
Certified to UL 60950-1, CSA-C22.2 No. 60950-
1, 2nd edition safety approvals
Extensive self-protection, OVP, input undervolt-
age, current limiting and thermal shutdown
DRQ-12/42-D48 Series
500W Digital Fully Regulated
Intermediate DC-DC Bus Converter
PRODUCT OVERVIEW
The DRQ 500W series provides a fully regulated,
digitally controlled DC output in a ¼-brick format
that will support the evolving Advanced Bus Con-
verter (ABC) industry standard footprint for isolated
board mounted power modules. The DRQ series
supports advances in power conversion technology
including a digital interface supporting the PMBus
protocol for communications to power modules.
The DRQ series offers high output current (up to
43.5 Amps) in an industry standard “quarter brick”
package. The DRQ series is an isolated, regulated,
500W-11.5Vout quarter brick that supports the
TNV input voltage range of 38V-75V with a typical
efficiency of 95.5%.
Advanced automated surface mount assembly
and planar magnetics deliver galvanic isolation
rated at 2250 Vdc for functional insulation. Target
markets include networking equipment, Power over
Ethernet applications, wireless networking equip-
ment, telecommunications equipment, wireless
pre-amplifiers, industrial and test equipment, and
applications requiring a regulated 11.5V output.
A wealth of self-protection features include input
undervoltage lockout and overtemperature shut-
down; over current protection using the “hiccup”
autorestart technique provides indefinite short-
circuit protection, along with output OVP. The DRQ
series is certified to safety standards UL/IEC/CSA
60950-1, 2nd edition. It meets RFI/EMI conducted
emission compliance to EN55022, CISPR22 with an
external filter.
APPLICATIONS
Embedded systems, datacom and telecom
installations, wireless base stations
Disk farms, data centers and cellular repeater sites
Remote sensor systems, dedicated controllers
Instrumentation systems, R&D platforms, auto-
mated test fixtures
Data concentrators, voice forwarding and
speech processing systems
F1
+Vin (1)
External
DC
Power
Source
On/Off
Control
(2)
Open = On
logic)
-Vin (3)
Barrier
Controller
and Power
Reference and
Error Amplifier
Figure 1. Connection Diagram (without digital interface)
Typical topology is shown. Murata Power Solutions recommends an external fuse.
+Vout (8)
-Vout (4)
Ḥ
For full details go to
www.murata-ps.com/rohs
www.murata-ps.com/support
MDC_DRQ-12/42-D48.A03 Page 1 of 24