AC/DC power supply with 12V and 48V outputs and 800W peak power

RECOM has released two new cost-effective RACM600-L AC/DC series variants with 12V and 48V outputs. Adding to the current 24V output version, the new parts are also rated for extended peak power operation up to 800W.

The new parts are designed in the same 7.7" x 4" x 1U open frame/U-channel format. This format supports convection-cooled constructions, which implies they can dissipate heat without conductive cooling methods. The new parts have a continuous output rating of 430W when employing convection cooling, and they can handle up to 600W continuous output when airflow is available. The new variants are safety-certified and provide a peak load of 800W, as described in the datasheet. The datasheet includes comprehensive information on how the peak load behaves under different duty cycles and repetition rates, making it ideal for dynamic loads typically found in modern systems.

The series has an 80-275VAC input range and a 5V/0.5A standby output. A range of control functions are included: remote ON/OFF, remote sensing, PSU-Good signal, and output adjustment +/-20% via a potentiometer or through the built-in PMBusTM interface. Parts can be paralleled with active current sharing, and OR-ing diodes are included for redundant operation. Efficiency is especially high, peaking at 93%, meeting the '90+' requirements.

Certifications include IEC/EN/UL 62368-1 for IT/multimedia and IEC/EN/ANSI/AAMI 60601-1, 2MOPP medical, with low leakage current for BF patient-connect applications. 'Class B' EMC limits are met with a good margin, the operating altitude is up to 5000m (3000m medical), and the parts are rated over-voltage category II (OVCII).

Parts operate over -20C to 70C with derating, dependent on airflow and input voltage.

The series is intended for applications that demand reliability, long life, and guaranteed uptime. Full protection is included to achieve this, and the design employs high-grade components with conservative ratings. These features make the parts appropriate for applications such as medical patient monitoring and industrial test and measurement, where versatile cooling and mounting options are also valuable.