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• More About Murata PS

• 12 Volts DC fixed output up to 25 Amps
  
• Industry standard quarter brick 2.3" x 1.45" x 0.44" open frame package
  
• Wide range 36 to 75 Vdc input voltages with 2250 Volt Basic isolation
  
• Double lead-free assembly and attachment for RoHS standards
  
• Up to 300 Watts total output power
  
• High efficiency (94.5%) synchronous rectifier topology
  
• Stable no-load operation with no required external components
  
• Operating temperature range -40 to +85° C. with no heat sink required
  
• Meets UL/EN 60950-1, CSA-C22.2 No. 60950-1,2nd edition safety approvals
  
• Extensive self-protection, current limiting and shut down features
  
• "X" optional version omits trim and sense pins

• Embedded systems, datacom, and telecom installations
• 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
  

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The Murata Power Solutions HPQ-12/25-D48 Series are isolated 300 - Watt DC/DC Converters offering up to 25 Amp output current and requiring no heat sink for most applications. The HPQ-12/25-D48 series delivers fixed 12 Vdc output at 300 Watts for PCB mounting. The Murata Power Solutions HPQ-12/25-D48 quarter-brick package (2.3" x 1.45" x 0.44") converter offers wide range inputs of 36 to 75 Volts DC (48 Volts nominal), making it ideal for datacom and telcom systems. The fixed output voltage is regulated to within ±2%.

Advanced automated surface mount assembly and planar magnetics deliver galvanic isolation rated at 2250 Vdc for basic insulation. To power digital systems, the outputs offer fast settling to current steps and tolerance of higher capacitive loads. Excellent ripple and noise specifications assure compatibility to CPUs, ASICs, programmable logic and FPGAs. No minimum load is required. For systems needing controlled startup/shutdown, an external remote On/Off control may use either positive or negative polarity. Remote Sense inputs compensate for resistive line drops at high currents.

A wealth of self-protection features avoid problems with both the converter and external circuits. These include input undervoltage lockout and overtemperature shutdown using an on-board temperature sensor. Overcurrent protection using the "hiccup" auto-restart technique provides indefinite short-circuit protection. Additional safety features include output overvoltage protection and reverse conduction elimination. The synchronous rectifier topology offers high efficiency for minimal heat buildup and "no heat sink" operation. The Murata Power Solutions HPQ-12/25-D48 series meets full safety standards to UL/EN/IEC/CSA 60950-1, 2nd edition and RFI/EMI conducted/radiated emission compliance to EN55022, CISPR22 with external filter.

- Connection Diagram -