Medical Power Converters Feature 2uA Patient Leakage Current


XP Power announced new isolated and regulated DC-DC converters for medical applications. Typical applications include medical devices that require a low power isolated and regulated DC-DC converter that has an extremely-low patient leakage current and reinforced insulation.

The JHL and JHM series includes the 3 Watt JHL03, the 6 Watt JHL06 and the 15 Watt JHM15. All power converters are available with single and dual outputs. The converters are packaged in industry-standard format cases, ranging from DIP-24 for the JHL03 and JHL06 to 40.6 x 25.4 x 10.2 mm for the JHM15 series.

Key features of all the models include conformance to the 3rd edition international medical safety standards EN60601-1:2006 and ANSI/AAMI ES60601-1:2005, a low 2uA maximum patient leakage current, and 2 x means of patient protection (2 x MOPP). A double / reinforced isolation barrier provides 4000 VAC maximum input to output isolation for one minute with a 250 VAC working voltage.

Input voltage ranges for the JHL series include 10 – 17 or 20 – 30 VDC, for nominal 12 or 24 VDC applications. The JHL03 and JHL06 series single output models are available with 5, 12 or 15 VDC outputs and duals offer +/- 12 or +/- 15 VDC outputs.

The JHM15 series comprises two 2:1 input voltage range options of 9 – 18 or 18 – 36 VDC. Products with single output voltages provide 5, 12, or 15 VDC outputs whereas those with duals provide +/- 5, +/- 12 or +/- 15 VDC.

For the single output models of JHL/JHM series, an output voltage trim function is available to provide a +/- 10 per cent adjustment of the output in order to accommodate losses or for special applications. The units comply to the EN55011 Level A EMI standard for both conducted and radiated emissions without the need for any external filtering components.

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Both series are capable of operating in most environments and over an extended operating temperature from –40 to +80 degrees. The JHM15 can deliver the full output power up to + 60 degrees C without derating whereas the JHL03/06 series operates from -20 to + 80 degrees C with full output power available up to +50 degrees C.

The JCL03 series is available from XP Power, or from distributors like Farnell, element14 and Digi-Key, and come with a three year warranty.

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