Ultra compact isolated DC/DC converter aimed at medical applications

XP Power has announced the JHM series of ultra compact low power isolated DC/DC converters. Offering 3 and 6 Watt board mounted variants and packaged in an industry standard 24-pin DIP package, the converters conform to the international medical equipment safety standards UL / IEC 60601-1 and CSA-C22.2 No 601.1. The units provide 3,000 VAC input to output isolation for up to 1 minute, meeting the secondary isolation requirements for BF and CF applications and 5,000 VAC isolation up to 10 milli-seconds for defibrillation proof compliance. Any medical appliance that may involve patient contact needs to provide isolation from hazardous voltages and have an extremely low leakage current. With such a small leakage current of 2 A, and low 20 pF input to output capacitance, the JHM series meets these requirements and provides a reliable and cost effective solution for designers of medical equipment.

The JHM series comprises a total of 20 models. The 3 Watt and 6 Watt units are available in +12 VDC or +24 VDC nominal input versions covering the ranges of +10 to +17 VDC or +20 to +30 VDC. Single output models are available with +5, +12 or +15 VDC outputs. Dual output models offer +/-12 or +/-15 VDC options. Output voltages are fully regulated to within +/- 0.3% over all input conditions and less than +/- 2.0% over all load conditions.

The converters are capable of operating in most environments without any additional heat sinking or forced airflow. Full load output is available from -20 degrees C to +60 degrees C and up to the maximum case temperature of +100 degrees C with derating.

The units conform to EN55011 and EN55022 level A standards for conducted and radiated EMI without the need for any additional external components.

Units are available for immediate delivery from Farnell or direct from XP Power