Wide input range, medically approved DC:DC converters

Both series are in the industry-standard miniature DIP Package and provide a regulated 3 watt output with the TWA3/MHI featuring a 2:1 wide input voltage range while the TWB3/MHIA5 Series has an ultra-wide 4:1 input voltage range. Both provide regulated single or dual output voltages over the range 3.3 to 24V DC or +/-5 to +/15V DC and have input voltage options from 4.5 to 72V DC. Polytron DC-DC converters can be supplied for through-hole printed circuit board mounting or surface mount form for automated assembly.

Standard features include high efficiency up to 89 per cent, operating temperature range -40 to +105degC (with derating), reinforced insulation, clearance and creepage distance 8.0mm/2MOPP, 5000V AC input to output 2MOPP isolation, 2uA patient leakage current, built-in EMI Class A filter, medical safety approvals including: UL, CE and ANSI/AAMI ES60601-1, EN60601-1 and IEC60601-1, ROHs Compliant to 2011/65/EU.

Typical applications for the TWA3/MHI and TWB3/MHIA5 Series of DC:DC converters include diagnostic and therapy equipment, home equipment including nebulisers and blood pressure monitors, X-ray machines, surgical tools with lights, lasers and video microscopes, defibrillators, medical devices and equipment, portable ventilators, 3D laparoscope, pain-monitoring devices, aesthetic machines, medical analysers, medical aesthetic devices, medical endoscope devices, dental chairs and haemodialysis devices

Jake Moir, Managing Director of Gresham Power, comments: "The medical electronics market continues to grow with home and portable equipment becoming much more popular. Medically approved DC:DC converters featuring wide input voltage ranges provide point of load power conversion for mains or battery powered medical electronic products."

For more information visit www.greshampower.com, or download the catalogue.