RBC-1217-D48P-C Datasheet, PDF (1/10 Pages) Murata Manufacturing Co., Ltd. – RBC-12/17-D48 Series Quarter Brick, Regulated Bus Converters

www.murata-ps.com
Output (V)
12
RBC-12/17-D48 Series
Quarter Brick, Regulated Bus Converters
Current (A)
17
Nominal Input (V)
48
Typical unit
FEATURES
„_{Up to 210 Watts total output power}
„Up to 93% ultra-high efficiency @ full load
„48V Input ( up to 36-75V range)
„12V/17A Output for Regulated Intermediate Bus
Architectures (RIBA) with POL converters
„Synchronous-rectifier topology
„225kHz fixed switching frequency
„Fully isolated, 2250Vdc (BASIC)
„2.3" x 1.45" x 0.42" quarter brick
„Stable no-load condition
„Thermal shutdown
„Fully I/O protected
„Certified to UL/IEC/EN 60950-1 and CSA C22.2
No.60950-1-07, 2nd edition
Optimized for distributed power Regulated Intermediate Bus Archi-
tectures (RIBA), the RBC DC/DC bus converter series offer regulated
outputs (±1.5%) in an industry-standard quarter brick open frame
package.
PRODUCT OVERVIEW
The present trend in distributed power architec-
tures (DPA) requires both high efficiency and some
regulation of the output voltage to reduce the risk
of under voltage dropout. Earlier unregulated bus
converters were simply ratiometric “DC transform-
ers.” The fully isolated (2250Vdc) RBC series accept
a wide range 36 to 75 Volt DC input (48V nominal)
and convert it to an output of 12Vdc. This output
then drives point-of-load (PoL) converters such as
our Okami, LSN, LEN, LSM or LQN series which
feature precise load regulation. Applications include
48V-powered datacom and telecom installations,
base stations, cellular telephone repeaters and
embedded systems. Low overall height of 0.42"
(10.7 mm) fits tight card cages.
The RBC’s synchronous-rectifier topology and fixed
frequency operation means excellent efficiencies.
“No fan” or zero airflow applications may use the
optional base plate for cold surface mounting or
natural-convection heatsinks.
A wealth of electronic protection features include
input undervoltage (UV) lockout, output current limit,
short circuit hiccup, overtemperature shutdown and
output overvoltage. Available options include posi-
tive or negative logic remote On/Off control and the
baseplate. Assembled using ISO-certified automated
surface-mount techniques, the RBC series includes
all UL and IEC emissions, safety and flammability
certifications.
+VIN
(1)
–VIN
(3)
GATE
DRIVE
+VOUT
(8)
–VOUT
(4)
REMOTE
ON/OFF
(2)
SWITCHING
CONTROLLER
HICCUP
OV, UV, OT
SHUTDOWN
CURRENT
SENSE
Figure 1. Simplified Block Diagram
Ḥ
For full details go to
www.murata-ps.com/rohs
www.murata-ps.com/support
VOLTAGE
SENSE
Typical topology is shown.
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