Automotive GaN Application

By 2025, one of every 10 vehicles sold worldwide will be a 48 V mild hybrid. 48 V systems boost fuel efficiency ~ 10-15% delivering 4X the power without increasing engine size, and carbon-dioxide emissions by 25%.The need for 48 V bus power distribution becomes increasingly evident with all the new power hungry electronically driven functions and features appearing on the latest cars. For example: Electric start-stop, electric steering, electric suspension, electric turbo-supercharging, variable speed air conditioning to name just a few.

With the emergence of autonomous vehicles, additional demands from systems such as lidar, radar, camera, and ultrasonic sensors, are placed upon the power distribution system. These require high performance graphic processors to gather, interpret, integrate, and to make sense of it all. These processors are very power hungry and put an additional burden on traditional automotive 12 V electrical distribution buses.

For 48 V bus systems, GaN technology increases the efficiency, shrinks the size, and reduces system cost.

Automotive 48 V Reference Designs

	Part Number	Description	VIN	VOUT	lOUT (A)	fSW	Featured Product
	EPC9163	2 kW 48 V/12 V Bidirectional Power Module	20 V – 60 V (Buck) 11.3 V – 16 V (Boost)	5 V - 16 V (Buck) 20 V - 50 V (Boost)	140 A (Buck) 140 A (Boost input)	500 kHz	EPC2218	Buy Now
	EPC9165	2 kW 48 V/14 V, 140 Bidirectional Power Module	20 V – 60 V (Buck) 11.3 V – 16 V (Boost)	5 V - 16 V (Buck) 20 V - 50 V (Boost)	140 A (Buck) 140 A (Boost input)	500 kHz	EPC2302	Buy Now
	EPC9170	2 kW 48 V/14 V, 140 A Power Module	20 V – 60 V (Buck) 11.3 V – 16 V (Boost)	5 V - 16 V (Buck) 20 V - 50 V (Boost)	140 V (Buck) 140 A (Boost)	500 kHz	EPC23101 EPC2302	Buy Now