A9786-AL

Document 328-1 Planar Magnetics For National Semiconductor LM5041 IC This planar transformer and inductor pair were designed specifically for National Semiconductor’s LM5041 IC. The A9786-A transformer is engineered for use in highcurrent telecom power supply applications that require high efficiency in a low-profile package.The auxiliary winding can be used to control input current to PWMs. It offers very high current handling capability and extremely low DC resistance in a low profile package. Coilcraft’s A9787-A inductor is designed as the output choke for the LM5041. Planar magnetics offer high power densities along with great reliability and repeatability. Windings are etched into a printed circuit board, ensuring high efficiency and consistency. Request free evaluation samples by contacting Coilcraft or visiting www.coilcraft.com. Transformer Input Output Primary Leakage Pri/sec Part Output voltage Output   current  inductance1   inductance2 DCR ...