Analysis of ON Semiconductor's Development under the Development of Automotive Electrification and Intelligence

With the electrification and intelligentization of automotive development, fuel economy and emission reduction, active safety and autonomous driving, Internet of Vehicles and LED lighting have become the focus of the current automotive industry, which brings more development opportunities to the semiconductor industry. It also presented more challenges. Hybrid electric vehicles (HEV) / electric vehicles (EV) drive the semiconductor component of each vehicle's automotive power system to increase by approximately 5 times. Advanced driver assistance systems (ADAS), convenience and infotainment systems, and emerging markets that account for more than 50% of global car sales, have driven the global automotive semiconductor market to grow more than 9% year-on-year.

According to data from market research firm Databeans, the average semiconductor product cost per vehicle is $ 350. The application of semiconductor components in automobiles is shown in Figure 1.

Figure 1. Automotive semiconductor components

As one of the world's top ten energy-efficient automotive silicon solution providers, ON Semiconductor has strong development momentum in automotive electronics, and its revenue has increased by nearly 300% over a few years ago, especially in the field of automotive image sensors and AFS It has always maintained the number one position in the world, and will continue to provide a comprehensive product lineup and solutions in response to the development trend of the automotive market, and continue to promote automotive innovation.

With the increasingly stringent requirements imposed by the government and consumers on vehicle fuel efficiency, energy saving, pollution reduction, and environmental protection, various new energy vehicles such as HEV / EV / PHEV have been vigorously developed. ON Semiconductor provides field-stop IGBTs, energy-efficient FETs, power integrated modules, gate drivers, intelligent power modules, application specific integrated circuits (ASICs), application specific standard products (ASSPs), and other products to support automotive electrification. The development of new energy vehicles first needs to transform all kinds of energy. In order to continuously improve the efficiency of various energy conversions, ON Semiconductor focuses on strengthening innovation in the following aspects:

1. Develop a variety of high-efficiency and energy-saving power electronic devices, such as high-power IGBTs and power MOSFETs with extremely low on-resistance, to reduce switching losses, thereby improving the efficiency of conversion from electrical energy to mechanical energy. Taking Power Integration Module (PIM) NXH80T120L2Q0PG as an example, using ON Semiconductor's proprietary trench second generation field stop technology (FSII) and innovative packaging technology, it provides more than 98% energy efficiency, junction temperature up to 175 ° C, reliable Sexuality is extremely high. The low on-resistance MOSFET provides a compact and highly thermally efficient package.

Table 1. Very low on-resistance power MOSFET series for automotive applications

Figure 2. ON Semiconductor ’s new PIM and MOSFET for automotive applications

2. Develop various DC-DC converters to ensure high conversion efficiency of energy from one voltage level to another, such as from 48 V to 12 V, from 300 V to 48 V, from 12 V to 220 V and so on.

In addition, in response to the high temperature and harsh conditions under the hood of the car, ON Semiconductor launched the intelligent power module IPM STK984-17X series products, integrated intelligent sensorless brushless DC motor (BLDC) controller LV8907, 6 independent MOSFETs, precision shunt Resistors, thermistors and peripheral components of the system. Among them, LV8907 does not need any position sensor, preload configuration register, no software, can drive the motor in independent mode, no external system controller is needed, LV8907 also integrates LIN transceiver, can provide advanced motor driving scheme based on LIN. STK984-17X is used in automotive cooling fans, electric oil pumps, fuel pumps, electric water pumps, etc. It does not require any external microcontroller, it uses a unique insulated metal substrate technology (IMST), supports the design without circuit boards, and significantly reduces the system Space, weight and cost, providing high energy efficiency and high reliability, simplifying design and speeding time to market.

With the continuous improvement of people's awareness of safety, active safety systems have been continuously applied in vehicles, especially ADAS equipped with various sensors has made great progress, showing a blowout development. For such applications, ON Semiconductor provides image sensors and smart passive sensors that fully comply with the automotive safety integrity level (ASIL B) ISO26262.

Image sensors are used in vision applications (such as reversing images and panoramic parking imaging systems), ADAS applications (such as blind spot detection, lane departure warning, collision avoidance and active cruise control, pedestrian detection, traffic signal recognition) and new fatigue detection, gestures Identification (in the cabin) and mirror replacement. ON Semiconductor has more than 10 years of experience in providing CMOS image sensors for the automotive market. It is the world's largest ADAS supplier by market share, providing image sensors with excellent low-light performance, high-quality image distortion correction capabilities, and high dynamic range. (HDR), automotive-grade operating temperature range and high reliability and quality. For example, the company's latest CMOS image sensor AR0136AT, which uses back-illuminated (BSI) sensor technology, provides best-in-class performance. Compared with the current market-leading AR0132AT, it provides a 4x better low-light signal-to-noise ratio and a 40% increase in visible light sensitivity. And improve the near infrared (NIR) performance by more than 60%. The company's new series of image co-processor AP020x makes HDR 1080p automotive imaging systems possible. It uses the company's high-performance 2 million pixel sensors such as AR0230AT and 1 million pixel sensors such as AR0140AT, AR0132AT and AR0136AT to provide comprehensive and complete reversing images and Panoramic parking image scheme.

Figure 3. ON Semiconductor ’s first BSI sensor (left) and new series of image coprocessors (right)

ON Semiconductor ’s solutions for automotive reversing imaging also include 2 MHz switching power supplies (SMPS) such as NCV890201MWTXG and NCV898031D1R2G, low-dropout regulators (LDO) such as NCV8703 and NCV8705, switching MOSFETs such as NVTFS5116PL (u8FL) and BVSS84L (SOT23), Digital transistors such as SDTC1xxEE, CAN transceivers such as NCV7356 and NCV7341, image processors such as AP0100AT, video signal processors such as LC749000, EEPROM such as CAV25256 (SPI) and CAV24C256 (I2C), logic products such as NL17SZxx and ESD, etc.

Intelligent passive sensors are mainly used to detect seats and sense liquid levels. ON Semiconductor ’s smart passive sensor solution uses a first-of-its-kind, ultra-high-frequency RFID sensor tag, including a smart sensor IC called Magnus, and a printable antenna to support wireless sensing of temperature, humidity, pressure, and distance, all No external power supply is required. In terms of seat detection applications, this solution combines seat detection elements and standard weight detection to provide seat belt warning instructions and close / open airbags, which solves the challenges of today's car seat detection systems that do not provide human detection but only provide pressure detection. In terms of liquid level measurement, this solution is used to sense the liquid level outside the container, eliminating the need for sensitive electronic and mechanical devices in today's automobile fuel tanks.

Thanks to the advantages of small LED size, design flexibility, energy saving and high efficiency, LED car lights are expected to become a trend in automotive lighting, used to create unique shapes, achieve energy saving and enhance safety advantages.

ON Semiconductor provides a series of LED drivers and stepper motor drivers for such applications, such as: the fully integrated addressable LIN RGB (red, green and blue) single-chip solution NCV7430, which can output 16 million different colors through LIN commands, Used for vehicle anti-theft and other security features and creating a personalized internal atmosphere, this solution saves circuit board space compared to the current solution consisting of a microcontroller and LIN-SBC, and can use optional ballast control pins , Making thermal management simpler, its separate LIN node obtains the address via pre-programming or LIN commands, making the design flexible and reducing costs; the innovative LED headlight lighting scheme NCV78663, using power ballasts and dual LED drivers, provides segmentation Glare-free high beam, integrated smart electronics, through sensors, cameras and navigation controls, to automatically adapt the car to various road conditions, and to enhance safety by maximizing the lighting area, supports a modular design platform, easy to design and cost-effective; In response to the trend that AFS will move from motor control to the use of pixel / matrix technology, ON Semiconductor provides LED AFS pixel / moment All the semiconductor elements of the system (except microcontroller) such as LED ASSP, FET, LDO, rectifiers, logic devices, zener, protection.

In terms of user experience, driving efficiency and active safety, nodes inside and outside the car must be connected into an organic network, especially navigation systems and location-based navigation applications, such as real-time traffic information and parking spaces Information, restaurants, gas station information, etc. As far as the interior of the car is concerned, the various sub-systems must work more closely together and require information sharing; in terms of car following and other external systems, the exchange and sharing of information is even more critical. ON Semiconductor provides various bus transceivers and information processing units for these networks.

In addition, body and infotainment systems are also key areas of development for ON Semiconductor ’s automotive business to enhance driving comfort and entertainment.

The development trend of automobile electrification and intelligence requires innovative semiconductor technology. ON Semiconductor takes automotive electrification, active safety and autonomous driving, LED lighting, Internet of Vehicles and other fields as its key growth drivers, and focuses on the continuous investment in the Chinese market, providing a wide range of products and solutions to support market development, including: Devices (such as ESD / TVS protection, rectifiers, zener tubes, logic devices, small-signal secondary and tertiary transistors, comparators, operational amplifiers, EEPROM, etc.), analog products (such as drivers, linear regulators, SMPS, power management Unit (PMU), audio IC, transceiver, ASIC, ASSP, etc., power devices (such as IGBT, PIM, MOSFET, SmartFET, power triode, motor driver, IPM, etc.), image sensor (covering global shutter, rolling shutter , High-speed, HDR, low-light / NIR and other advanced technologies and system-on-chip SOC sensors / processors, etc.), from discrete components to standard products, to ASSP, ASIC, SBC, SOC, from power modules to image sensors, and more Highly integrated modules, coupled with application engineers at the China Automotive Solutions Engineering Center (SEC), inject innovation into the automotive market For comprehensive solutions and technical support.

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