Whitepaper - Smart power switches for a power distribution center

Download Infineon´s free whitepaper on how safety requirements for autonomous vehicles will reinvent fuse and relay boxes in automotive power distribution

What used to be achieved with a simple box full of mechanical relays and fuses is no longer possible. Indeed, the functional and safety requirements of a power distribution center are growing proportionally with the functional and architectural complexity of automated driving. Our Smart High Side Switches, called PROFET™ (PROtected MOSFET), have been developed to respond to the changing needs and new challenges of the power distribution box. With this whitepaper, you will have to the chance:

  • To understand the changes related to autonomous driving and their implications on the power distribution.
  • To know more about the different PROFET™ families we suggest you to use for replacing fuses and relays in the power distribution center.
  • To grasp their advantages and how to make the most out of them.


Open up the bonnet of any modern automobile and many of us would be hard-pressed to find anything that we could fix ourselves. With pipes and cables almost artistically integrated into the engine bay, and sleek plastic covers fitted everywhere, there is very little that can still be recognised, let alone repaired. Perhaps the only location where we feel comfortable is the “fuse box”, or power distribution centre (PDC), housing the fuses and relays. However, with the introduction of electrical drivetrains and ever more assistive and autonomous driving features, even this last bastion of self-repair is likely to disappear in future vehicles. In this white paper we review how high-side switches, such as those from Infineon’s PROFET™ portfolio, are driving the next generation of automotive power distribution architectures.