HPH Series

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For full details go to

www.murata-ps.com/rohs

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MDC_HPH_A12 Page 1 of 12

Using both surface-mount technology

and planar 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 syn-

chronous output rectification to achieve a

high efficiency. This efficiency, coupled with

the open-frame package that allows unre-

stricted air flow, reduces internal component

temperatures thereby allowing operation at

elevated ambient temperatures.

These DC/DC’s provide output trim,

sense pins and primary side on/off con-

trol (available with positive or negative

logic). Standard features also include input

undervoltage shutdown circuitry, output

overvoltage protection, output short-circuit

and current limiting protection and ther-

mal shutdown. All devices meet IEC/UL/

EN60950-1 safety standards and carry the

CE mark (meet LVD requirements).

SIMPLIFIED SCHEMATIC

Murata Power Solutions’ fully isolated HPH series of DC/DC converters affords users a

practical solution 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.

PRODUCT OVERVIEW

SWITCH

CONTROL

PWM

CONTROLLER

OPTO

ISOLATION

REFERENCE &

ERROR AMP

PULSE

TRANSFORMER

+Vin

(4)

+Vin

(1)

REMOTE

ON /OFF

CONTROL*

(3)

Vout

TRIM

(7)

-SENSE

(8)

-Vout

(9)

+Vout

(5)

+SENSE

(6)

Input undervoltage, input

overvoltage, and output

overvoltage comparators

* Can be ordered with positive (standard) or negative (optional) polarity.

Typical unit

Typical topology is shown. Some models may vary slightly.

FEATURES

CSA-C22.2 No. 60950-1 safety approvals

performance