MPQ3431A-AEC1
21A, High-Efficiency, Fully Integrated, Synchronous Boost Converter with Configurable Input Current Limit, AEC-Q100 Qualified
Active Part Numbers:
MPQ3431AGL-AEC1-P MPQ3431AGL-AEC1-Z
Meaning of P & Z 
MPQ3431A-AEC1 Resources
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DISPLAY (NAVIGATION, HEADS-UP, CLUSTER)Automotive displays — which include the center display, heads-up display (HUD), and gauge instrument cluster — show key information and interactive content to the driver. The center information display is connected to the head unit, and provides navigation and other in-cabin infotainment controls. The automotive HUD and gauge instrument cluster provide easy-to-access information for the driver. Th...
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HEAD UNITS (MID-RANGE)Automotive head unit designs have evolved from the traditional hardware interfaces into sophisticated infotainment systems that offer various in-cabin functionalities. These features include navigation, wireless connections, passenger entertainment, gesture recognition, and voice control. As consumer expectations for infotainment features continue to increase, manufacturers face design challenges ...
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HEAD UNITS (HIGH-END)Automotive head unit designs have evolved from the traditional hardware interfaces into sophisticated infotainment systems that offer various in-cabin functionalities. These features include navigation, wireless connections, passenger entertainment, gesture recognition, and voice control. As consumer expectations for infotainment features continue to increase, manufacturers face design challenges ...
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LIDARLaser imaging, detection, and ranging (LiDAR) is a rapidly expanding market for automotive advanced driver assistance system (ADAS) applications. Autonomous vehicle perception sensing is a cutting-edge functionality of ADAS technologies, and will continue to develop as new cars integrate radar with cameras and LiDAR systems. LiDAR uses real-time measurements of light pulses to offer higher bandwid...
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INFOTAINMENT SYSTEMSAutomotive in-vehicle infotainment systems are becoming increasingly software-driven to enhance safety and security, as well as the overall driving experience. Modern cars integrate driving and environmental information, passenger entertainment, wireless connections, and navigation into a centralized infotainment system architecture. However, with the rise of sophisticated in-vehicle infotainment ...
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REARVIEW CAMERAS (OFF BATTERY)Rearview cameras are perhaps the most well-known camera subsystem used in advanced driver assistance systems (ADAS) applications. As this feature is being offered and expected in more and more vehicles, these camera systems must offer high integration and fast data processing to enable accurate, real-time monitoring of possible hazards behind the vehicle and channeling information directly to an L...
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REARVIEW CAMERAS (COAXIAL)Rearview cameras are perhaps the most well-known camera subsystem used in advanced driver assistance systems (ADAS) applications. As this feature is being offered and expected in more and more vehicles, these camera systems must offer high integration and fast data processing to enable accurate, real-time monitoring of possible hazards behind the vehicle and channeling information directly to an L...
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FRONT-FACING CAMERAS (OFF BATTERY)Front-facing cameras are an increasingly popular camera subsystem used in advanced driver assistance systems (ADAS) applications. Because this feature is becoming standard in more and more vehicles, off-battery camera systems must offer high integration and fast data processing to enable accurate, real-time monitoring of possible hazards in front of the vehicle, in addition to assisting with integ...
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FRONT-FACING CAMERAS (COAXIAL)Front-facing cameras are an increasingly popular camera subsystem used in advanced driver assistance systems (ADAS) applications. As this feature is being offered and expected in more and more vehicles, these camera systems must offer high integration and fast data processing to enable accurate, real-time monitoring of possible hazards in front of the vehicle, and assist with integrated systems su...
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DRIVER MONITORING SYSTEMSDriver monitoring systems are one of the latest developments in automotive safety technology. As part of a holistic human-machine interface (HMI), driver monitoring systems track vital sign parameters and driver attentiveness, so that in the event that the driver is unable to operate the vehicle, assistance can be provided. Of course, advanced new features add design complexity and additional cons...
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360° SURROUND VIEW CAMERAS360° surround view cameras help eliminate blind spots for drivers by providing a birds eye view of the car and typically channeling it directly to an LCD display located in the cabins head unit. This image is a composite created from multiple cameras located around the vehicle, usually at least four. Sometimes thought of as the next step in evolution from the backup camera, 360° surround view came...
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SENSOR FUSION DOMAIN CONTROLLERSPerception-sensing systems have become a popular ADAS offering in new vehicles, and will continue to expand as new cars integrate radar with cameras and even LIDAR systems. However, each of these sensors has strengths and limitation — thats where sensor fusion comes in. By combining the inputs from all of the cars perception-sensing systems, the driver is provided with the best possible informatio...
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TELEMATICS/E-CALLSTelematics and e-call systems help increase vehicle safety by monitoring conditions and, in the event of a crash, assisting the driver with or alerting emergency responders directly to the event. These embedded onboard tools can monitor diagnostics and offer benefits such as vehicle tracking, as well communication for roadside assistance and emergency calls. Of course, new features also bring grea...
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OPTIMIZED BACKLIGHT DISPLAY DESIGN WITH THE MPQ3367A smart cockpit is essential for an intelligent, convenient, and safe automotive environment for drivers. Emerging energy companies and established car brands alike are increasing their investments to innovate cutting-edge smart cockpits. To meet this demand, MPS continues to introduce improved power management solutions in line with the future of automotive electronics. Many automotive features ...
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MPS SOLUTIONS FOR INTELLIGENT DRIVINGThe four modern trends of the automotive industry are electrification, intelligence, networking, and sharing. Among these development trends, intelligence requires advanced on-board sensors, controllers, and actuators. Highly intelligent systems tend to have more sensors. As such, the number and variety of cameras/sensors installed on cars increase daily. These include the cameras installed on th...
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AUTOMOTIVE ELECTRONICS RELIABILITY TESTING STARTS AND ENDS WITH THE MISSION PROFILEAutomakers must design vehicles to thrive in a broad spectrum of environments, from snowy tundras to scorching deserts. Unlike most consumer applications, where the expected lifespan can be months, automotive electronics are often expected to last 15 years or more. When specifying a vehicle component, it is common for OEMs and their suppliers to develop an automotive mission profile, which is esse...
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EASY, COST-EFFECTIVE PRE-BOOSTER FOR AUTOMOTIVE COLD CRANK CONDITIONSStart-stop functionality is expected to be featured in more and more new car models from any manufacturer. However, this presents a challenge in automotive electronics design as starting the motor in cold weather can make the battery’s voltage drop as low as 3V. This is called a “cold crank.” The power stage for most 12V automotive systems consists of a single buck converter tha...
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MPQ3910A REFERENCE DESIGN - HIGH VOLTAGE BOOST FOR APD IN LIDAR APPLICATIONSAutonomous vehicles have been a hot topic for some time, but now they are staring to become a reality. To enable high degrees of autonomy, vehicles are using combined methods (cameras, radar, and LiDAR) to detect surroundings. LiDAR is a ranged device. It functions similarly to radar, but uses light waves instead of RF waves. A laser diode emits light pulses, and an advanced photodiode (APD) sens...
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MPQ3426 PRE-BOOSTStart-stop functionality is an expected feature in more and more new car models from any manufacturer. However, this presents a challenge in automotive electronics design, as starting the motor in cold weather can make the battery’s voltage drop as low as 3V. This is called a “cold crank.” The power stage for most 12V automotive systems consists of a single buck converter that t...
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DESIGNING THE FEEDBACK VOLTAGE RESISTOR DIVIDER IN A DC/DC CONVERTERThe specifications of the feedback (FB) voltage resistor divider in DC-DC converters often poses various design challenges, such as determining the required resistance or adjusting parameters (e.g. output voltage, upper divider resistance or lower divider resistance). Figure 1 shows the various magnitude combinations for the FB upper and lower divider resistances. This article examines the ...
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HOW TO DESIGN A THERMALLY BALANCED CURRENT-SHARING SYSTEM FOR MULTI-PHASE POWER DESIGNSThe car of tomorrow is envisioned to be an audiovisual wonderland on wheels, including wraparound screens and dozens of speakers. Driving on the road in the future will immerse passengers in an incredible sensory experience with content streamed via ultra-fast 5G. To achieve this content-rich, connectivity-heavy paradigm of future mobility, emerging digital cockpit systems continue to demand expon...
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A THERMALLY OPTIMIZED, TWO-LAYER AUTOMOTIVE PCB DESIGN TO MEET CISPR25 CLASS 5Automotive electronics suppliers are faced with escalating cost pressures in the race to produce autonomous, connected, and electrified solutions. One effective way to reduce design costs is by using 2-layer automotive PCBs. However, 2-layer PCBs require special care, as they can have poor thermal characteristics, which leads to compromised performance. In this article, an automotive expert will ...
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IMPROVING BATTERY SAFETY WITH THE MP2797Modern life has become more convenient due to battery-powered applications for electric tools, vacuum cleaners, electric bikes, and outdoor power supplies for camping. As wireless charging continues to be more widely used in applications, lithium battery safety is a growing concern, so designers are looking to develop battery monitoring and protection solutions. A battery pack is made up of multi...
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DESIGNING A POWER TREE FOR AN AUTOMOTIVE SOCAdvanced driver assistance systems (ADAS) and infotainment system-on-chips (SoCs) are offering increasingly higher computing power, which in turn results in higher power demands. An SoC can require more than 10 different power rails, with currents ranging from hundreds of amperes (A) to a few mA. Crafting an optimal power tree for these applications is not a trivial task. This article will discuss...
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AUTOMOTIVE-GRADE IDEAL DIODE CONTROLLER WITH REVERSE POLARITY PROTECTION: MPQ5850The MPQ5850-AEC1 is a 42V off-battery, smart ideal diode controller that can drive an external N-channel MOSFET to replace a Schottky diode for -36V reverse polarity protection. It minimizes power loss and enables a low minimum input voltage, making it ideal for applications such as digital clusters, infotainment, and ADAS. Compared to traditional solutions, the MPQ5850 features a compact solution...
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