8:1 input 100W DC/DC converter is designed with baseplate cooling

A quarter brick, baseplate-cooled DC/DC converter has been added to the Flex Power Modules product line-up. The PKM8100A has a wide 9.0 to 75V DC input range (100V / 100 milliseconds) and delivers 100W at up to 89 per cent efficiency. It is available with initial outputs of 12V / 8.35A or 54V / 1.85A. Input to output isolation rating is 3000V DC, meeting the requirements of IEC/UL 62368-1. 

The DC/DC converter has remote control, output trim and remote sensing as well as over-temperature, input under-voltage lockout and output over-voltage and short circuit protection.

The PKM8100A is in the industry-standard quarter brick format, 57.9 x 36.8 x 12.7mm with through-pin connections. The device operates to a maximum baseplate temperature of 110 degrees C, allowing operation without derating to 85 degrees C ambient with three metres per second airflow or to 75 degree C ambient with natural convection when fitted to a cold wall.

Class B of EMC standards EN 55032, CISPR 32 and FCC part 15J are met with an external input filter with component values specified in the technical specification. Reliability of the parts is high at 3.78Mhrs according to Telcordia SR-332 standard, issue 3 method 1, at 40 degrees C ambient.

“The ultra-wide input range means that the part can ride through dips and surges in tough environments, or one part can cover a range of nominal inputs, reducing inventory holding,” said David Xie, director R&D and product management in Shanghai of Flex Power Modules.

The PKM8100A series is available for sampling now and will be released for production in December.

Flex Power Modules, a business line of Flex, a manufacturer of scalable DC/DC power converters primarily serving the data processing, communications, industrial and transportation markets. The digitally enabled DC/DC converters offer a wide range of both isolated and non-isolated solutions and include PMBus compatibility supported by the company’s Flex Power Designer software tool. 


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