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How to use LM5045 evaluation board

Posted: 25 Oct 2011 ?? ?Print Version ?Bookmark and Share

Keywords:power converter? PWM controller?

National Semiconductor's LM5045 evaluation board is designed to provide the design engineer with a fully functional power converter based on the full-bridge topology to evaluate the LM5045 PWM controller. The evaluation board is provided in an industry standard quarter brick footprint.

The performance of the evaluation board is as follows:
? Input operating range: 36V to 75V
? Output voltage: 3.3V
? Measured efficiency at 48V: 92% @ 30A
? Frequency of operation: 420kHz
? Board size: 2.28 x 1.45 x 0.5 inches
? Load Regulation: 0.2%
? Line Regulation: 0.1%
? Line UVLO (34V/32V on/off)
? Hiccup Mode Current Limit

The printed circuit board consists of 6 layers; 2 ounce copper outer layers and 3 ounce copper inner layers on FR4 material with a total thickness of 0.062 inches. The unit is designed for continuous operation at rated load at View the PDF document for more information.

Originally published by National Semiconductor at as "LM5045 Evaluation Board".

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