Automotive Design Through Right PMICs | Car Design | Thermal Limiter
Automotive Design Through Right PMICs, Reduce Electromagnetic interference(EMI), Thermal Limiter, Auto Design, Car Interior Design:
As a processor can consume between 200 and 450 watts. It is fortunate that data centers have temperature controlled environments and that their servers are designed with cooling capabilities. Imagine, though, if this server is inside the car, where wide ambient temperature ranges can reach 125 ° C or higher.
In fact, automotive design engineer face a major challenge because applications such as Advanced Driver Assistance Systems (ADAS), information and entertainment constantly require increased processing power in the car. For example, to meet these needs, NVIDIA announced what it calls “giant cooled liquid motor”. In the drive, the 2-chip chip offers the power equivalent to the 150 MacBook Pros, with 12 processor cores, 8 teraflops of processing power and the ability to access 24 trillion operations per second. All these forces are necessary to run sophisticated algorithms, including deep learning, and perform calculations that allow the vehicles to do more independence.
Cars simply do not have the cooling capacity of data center servers. Liquid cooling, previously used for our NVIDIA chip example, reduces the operating temperature using refrigerants pumped through microfluidic channels on a chip. The new generation of car processors requires between 60 and 90 to 100 watts of power. They are like server processors in the car. As a result, as we move to self-capacity levels in vehicles, the power requirements of motor processors will only increase. This highlights the power management ic circuits (PMIC).
Reduce Electromagnetic interference(EMI)
Consider Automotive Design information and entertainment systems as an example. To reduce the overall size of the solution, these types of systems must be equipped with high switching frequencies. You should also reduce the electromagnetic interference (EMI) because EMI can wreak havoc on the performance of many sub-systems in the car. These mixers are generally connected to the main battery of the vehicle. Because of this conductivity, these parts must be able to withstand high input voltages (> 36V) and function reliably by discharging the charge during the life of the vehicle (although discrete circuits generally address this phenomenon related to batteries).
Meet Your Thermal Limiter
In addition to the very specific transient load requirements (usually half to full load in microseconds), Automotive Design PMICs must also meet the requirements and thermal constraints.
Let’s take a look at the IC voltage regulators. In general, regulators are directly connected to the battery supply network and have a 28VDC capacity at 40VDC to handle transients that slide through protection against overvoltages and buoys. Downstream regulators that are not directly connected to the battery do not need a high-voltage input specification. Adjust the regulators highly efficient (efficiency> 90% in full load) and low power current can extend useful battery life. They also produce less heat and require less panel space, two key criteria for Automotive Design applications.
Maxim offers a wide range of Automotive Design-qualified PMICs that work with any microprocessor or microcontroller. It is supported by a roadmap that meets growing energy requirements while meeting the industry’s standards of efficiency, cost of solution and footprint. If you are working to solve a power management problem in your car design, contact your local representative to find out how Maxim’s PMICs can help you solve the problem.
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