UCH750 750W Medical AC-DC Power Supplies

Introduction

XP Power’s UCH750 series is a 750 W AC-DC power-supply family intended for medical and industrial equipment requiring high power without forced-air cooling. The series combines fanless, convection-cooled operation with universal single-phase AC input capability, 2x MOPP isolation, and Class II construction. Its specified efficiency of up to 96% is particularly relevant in a compact high-power supply where thermal management is a central system consideration.

What it does

The UCH750 converts a 90 VAC to 264 VAC single-phase input into regulated DC output options spanning 12 V to 54 V. It is rated for up to 750 W output power and includes a separate 5 V, 2 A standby output for functions that must remain powered while the main output is disabled.

For system control, the family provides remote on/off capability. Integrated protection features cover overcurrent, overvoltage, and overtemperature conditions.

The series is designed for applications requiring medical-grade isolation, with 2x MOPP specified and IEC 60601-1 medical safety approval. It also carries IEC 62368-1 ITE safety approval. Class B conducted and radiated emissions are specified, supporting integration into equipment with demanding EMC requirements.

Applications

Potential uses based on the stated electrical, safety, and cooling characteristics include:

• BF-rated medical equipment
• Medical diagnostic and laboratory instruments
• Industrial control systems requiring a high-power AC-DC source
• Fanless equipment where acoustic noise or airflow maintenance must be minimized
• Systems needing a standby rail alongside a remotely controlled main supply
• Equipment operating from universal single-phase mains inputs

Design considerations

The UCH750 has dimensions of 203.2 mm × 127 mm × 40 mm, so enclosure space and conductive or convective heat paths should be considered during mechanical design. As a convection-cooled supply, its thermal environment can be especially important when operating toward its 750 W rating or across its specified –20°C to +70°C operating range.

Designers can select versions with output voltages from 12 V to 54 V, while accounting for the available 5 V/2 A standby output separately from the main rail. The universal 90 VAC to 264 VAC input range supports deployment across common single-phase mains systems, and the specified overvoltage category III should be considered in relation to the installation environment.

Medical designs should evaluate the system-level implications of the supply’s 2x MOPP isolation, Class II construction, and IEC 60601-1 approval. Industrial and information-technology equipment designs can also reference the IEC 62368-1 approval and Class B emissions specification during compliance planning.

Availability and further information

Further technical information is available through the Mouser Electronics source link and the datasheet link provided on this page.