DRQ-12/50-L48 Series
www.murata-ps.com
600W Digital Fully Regulated
Intermediate DC-DC Bus Converter
PRODUCT OVERVIEW
Typical unit
The DRQ 600W series provides a fully regulated, and planar magnetics deliver galvanic isolation
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
rated at 2250 Vdc for functional insulation. Target
markets include Networking Equipment, Power
over Ethernet applications, Wireless Network-
ing Equipment, Telecommunications Equipment,
supports advances in power conversion technology Wireless pre-amplifiers, Industrial and test equip-
including a digital interface supporting the PMBus
protocol for communications to power modules.
The DRQ series offers high output current (up to
50 Amps) in an industry standard “quarter brick”
p
ackage. The DRQ series is an isolated, regulated,
600W-12Vout quarter brick that has an input range
of 44-60Vdc with a typical efficiency of 96%. The
DRQ-12/50-L48 is ideal for intermediate bus ap-
plications.
ment, 12V Fan trays and applications requiring a
regulated 12V 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.
FEATURES
Fixed DC outputs, 12V @ 50A
Advanced Bus Converter industry standard
quarter-brick with digital PMBus™ interface
A digitally controlled version is also available
with the Advanced Bus Converter (ABC) pinout.
Advanced automated surface mount assembly
Optional five pin version (DOSA compatible
pinouts)
44-60 VDC input range
Load sharing option
Baseplate & heatsink options
APPLICATIONS
Embedded systems, datacom and telecom
96% typical efficiency
Instrumentation systems, R&D platforms, auto-
mated test fixtures
2250 VDC isolation
installations, wireless base stations
Disk farms, data centers and cellular repeater sites
Certified to UL 60950-1, CSA-C22.2 No. 60950-1,
2nd edition safety approvals
Data concentrators, voice forwarding and
Remote sensor systems, dedicated controllers
speech processing systems
Extensive self-protection, OVP, input undervolt-
age, current limiting and thermal shutdown
F1
+Vin (1)
+Vout (8)
Barrier
External
DC
Power
Source
On/Off
Control
(2)
Controller
and Power
Open = On
Reference and
Error Amplifier
logic)
-Vin (3)
-Vout (4)
Figure 1. Connection Diagram (without digital interface)
Typical topology is shown. Murata Power Solutions recommends an external fuse.
For full details go to
www.murata-ps.com/rohs
www.murata-ps.com/support
MDC_DRQ-12/50-L48NK.B02 Page 1 of 26