Intersil Improves Automotive Power Efficiency

Added on August 16, 2012
Intersil's advanced automotive power management solutions can improve power efficiency by as much as 5%.

Related Resources

ISL78200 Datasheet ISL78200 Datasheet

isl78200.pdf (972 KB)
Nov 2014

Automotive ICs Automotive ICs

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Video Transcript

So we're in the power management area in automotive. We have some custom devices we've ultimately built for the automotive industry. And what I mean by custom devices is they have to adhere to the high voltage specifications, 40 volts and 60 volts, but also for the requirements of the vehicles. As an example, we have a device we released about six months ago called the ISL78200, that is a buck/boost device. And one of its key features is for start-stop applications.

Within the vehicle, as an example, you have an alarm system, you have an infotainment system, you have rear-view cameras, GPS. You have all those different systems. In this start-stop vehicle, if you stop at a traffic light, there is a heavy load on the battery when the car starts again. If you have a glitch on that power supply, it could switch off your alarm, switch off your GPS, switch off your infotainment system. So our device continues to give an output of 5 volts, 12 volts or whatever the output voltage was initially required, even when the power on the input of that device drops all the way down to 1.8 volts. So again, what that buck/boost does is it maintains the output of the device at 12 volts no matter what the input voltage is, even if it drops down to 1.8 volts for a short instance in time as a result of start-stop.

Another area where we have high-efficiency power management is in the infotainment audio area, where we have multi-phase boost devices, six-phase, four-phase. And we can gang the devices together to get up to 12-phase, 18-phases. So, if you have an audio system today that is 1.2 kilowatt, 1.5 kilowatt, which are for larger vehicles, you will need really good efficiency power management devices. ISL78220, ISL78225 support these high-end applications with really good efficiency.