HPH Series
www.murata-ps.com
Isolated, Low VOUT to 70A, Half-Brick DC/DC Converters
FEATURES
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RoHS Compliant
3.3V to 12V outputs @ up to 70 Amps
Input range: 36V-75V
Open Frame: 2.3" x 2.4" x 0.40"
Industry-standard package/pinout
Remote sense, Trim, On/Off control
High efficiency: up to 91%
Typical unit
Murata Power Solutions’ fully isolated HPH series of DC/DC converters affords users a practical solu-
tion for their low-voltage/high-current applications. With an input voltage range of 36 to 75 Volts, the HPH
Series delivers up to 70 Amps of output current from a fully regulated 3.3V output.
Fully isolated, 2250Vdc (BASIC)
Input undervoltage shutdown
Output overvoltage protection
Short circuit protection, thermal shutdown
PRODUCT OVERVIEW
Using both surface-mount technology and pla-
nar magnetics, these converters are manufactured
on a 2.3" x 2.4", lead-free, open-frame package
with an industry-standard pinout.
HPH converters utilize a full-bridge, fixed-
frequency topology along with synchronous output
rectification to achieve a high efficiency. This
efficiency, coupled with the open-frame package
that allows unrestricted air flow, reduces internal
component temperatures thereby allowing operation
at elevated ambient temperatures.
Designed to meet UL/EN/IEC 60950-1, CAN/
CSA-C22.2 No. 60950-1 safety approvals
These DC/DC’s provide output trim, sense pins
and primary side on/off control (available with posi-
tive or negative logic). Standard features also include
input undervoltage shutdown circuitry, output over-
voltage protection, output short-circuit and current
limiting protection and thermal shutdown. All
devices meet IEC/UL/EN60950-1 safety standards
and carry the CE mark (meet LVD requirements).
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CE mark
Optional baseplate offers increased thermal
performance
SIMPLIFIED SCHEMATIC
+SENSE
(6)
+Vin
(4)
+Vout
(5)
SWITCH
CONTROL
–Vout
(9)
–Vin
(1)
–SENSE
(8)
PULSE
TRANSFORMER
Input undervoltage, input
overvoltage, and output
overvoltage comparators
OPTO
ISOLATION
PWM
REFERENCE &
ERROR AMP
Vout
TRIM
(7)
CONTROLLER
REMOTE
ON /OFF
CONTROL*
(3)
* Can be ordered with positive (standard) or negative (optional) polarity.
Typical topology is shown. Some models may vary slightly.
For full details go to
www.murata-ps.com/rohs
www.murata-ps.com
Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000
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