Slim 1U telecoms supply delivers more than 1kW at 12V

CUI has introduced a 1,100W front-end ac-dc power supply for mission critical (N+1) redundant applications.

PSA-1100-12 has 25.34W/inch3 power density and over 93% efficiency – all in a 40 x 54 x 321mm 1U package.

The power supply outputs 12V (up to 92A) with 5V or 3.3V pin-selectable stand-by.

For redundant and parallel applications, droop-sharing is implemented, with +/-120mV output change across 10-100% load – forced current sharing is optional.

Hot-plugging is implemented with an IEC320 ac connector at the front, and an output connector that integrates dc power and signal pins at the back.

Control and monitoring comms is via I2C PMBus protocol.

Front-to-back or back-to-front air flow configurations are available.

The units are 60950-1 safety approved, bears the CE Mark, and comply with world-wide EMC requirements.

Protections for over-voltage, over-current, over-temperature, and input under-voltage are standard.

Applications are expected in telecoms, servers and networking.

steve bush

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