45V, 6A, Low-IQ, Synchronous Step-Down Converter with Frequency Spread Spectrum, AEC-Q100 Qualified
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A THERMALLY OPTIMIZED, TWO-LAYER AUTOMOTIVE PCB DESIGN TO MEET CISPR25 CLASS 5
Automotive 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 ...
DEVELOPING A MILLIMETER-WAVE RADAR POWER SUPPLY
Autonomous driving is one of the most popular trends in the automotive industry. Currently, commercial-level automatic driving remains at the L2/L3 level. Automotive radar technology is gaining momentum as a solution to achieve higher levels of automated driving. With the accurate perception of millimeter-wave radar, cars can autonomously make intelligent judgements and decisions. At 77GHz, mil...
INTRODUCING THE MP5031: A USB POWER DELIVERY (PD) CONTROLLER
The MP5031 is part of the new generation of fast-charging chips, which meet the growing demand for fast-charging technology for mobile phones and devices. This USB power delivery (PD) controller is compatible with USB Type-C 2.0 and USB PD 3.0 specifications, and supports dedicated charging port (DCP) schemes. The MP5031 also supports BC1.2 charging data port (CDP) handshaking. This article discus...
VERSAL AI EDGE (AUTOMOTIVE) FULL POWER MANAGEMENT REFERENCE DESIGN
VERSAL AI EDGE (AUTOMOTIVE) –M, H DEVICES REFERENCE DESIGN
VERSAL AI EDGE (AUTOMOTIVE) –L DEVICE REFERENCE DESIGN
AUTOMOTIVE-GRADE, LOW-VOLTAGE, STEP-DOWN CONVERTERS: MPQ2179 FAMILY
The MPQ2179 series of low-voltage, step-down converters from 1A to 3A is optimized for an automotive platform design approach to 5V applications, including infotainment, ADAS, cameras, and digital cockpits. To withstand tough automotive conditions, the MPQ2179 family features well-managed thermals to keep boards running. With a compact package and high efficiency, these products fit in space-limit...
SPARTAN 7 AUTOMOTIVE SOLUTION
This reference design is intended for powering AMD Xilinx Spartan7 family of FPGAs (S6 - S100). This PMIC based solution combines a small footprint with good efficiency and tight regulation for a low cost solution. The internal sequencer ensures power up and power down sequencing requirements MPQ7920 PMIC with 4x bucks, 5x LDOs Vin 2.7V to 5.5V I2C support QFN-26 (3.5mmx4.5mm) Cost effective and S...
THE ROAD FROM ECUS TO DCUS
As electronic vehicles become more commonplace, electronic control units (ECUs) are becoming the standard, embedded control system for automotive electronics. ECU systems provide safety and functionality — applications using ECUs include anti-lock brakes, four-wheel drive, electronic automatic transmission, active suspension, and airbags. Gradually, the use of ECUs has extended to vehicle body saf...
EMI GENERATION, PROPAGATION, AND SUPPRESSION IN AUTOMOTIVE ELECTRONICS (PART I)
In the automotive industry, stringent electromagnetic interference (EMI) requirements are necessary for safety but create design challenges for engineers (see Figure 1). To reduce EMI, it is necessary to model and analyze various EMI problems. This article provides modeling and suppression methods to reduce EMI in non-isolated converters, such as buck, boost, and buck-boost converters. Many...
EVALUATING THE TRANSIENT PERFORMANCE OF BUCK REGULATORS WITH AN INTEGRATED COMPENSATION NETWORK
Designing the compensation network for buck regulators can be tedious and may require several iterations to optimize the solution. Having an optimized control loop, which can enable fast transient response while maintaining proper stability, has become a major challenge with the emergence of new applications such as ADAS and fast transient response requirements. To address these issues, buck regul...
AUTOMOTIVE ELECTRONICS RELIABILITY TESTING STARTS AND ENDS WITH THE MISSION PROFILE
Automakers 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...
DIRECT JUNCTION TEMPERATURE MEASUREMENT OF A DC SWITCHING POWER SUPPLY
Designers often want to measure the junction temperature of a DC switching power supply. This is especially difficult in temperature chambers because a thermal camera is inaccurate and can be damaged under high environmental temperatures, and an external temperature sensor is difficult to fix onto small packages. This article will help readers understand a practical method to measure the junction ...
A PERFECT MATCH: POWER LOSSES IN BUCK CONVERTERS AND HOW TO INCREASE EFFICIENCY
Today’s highly developed power ICs require superior power inductors. Building a standard power supply with common footprints can help reduce design time and production costs. Determining the best match between an inductor and an IC is paramount to achieving the best performance in terms of PCB space, as well as thermal and cost efficiency. Let’s explore which parameters are most impor...
DO MORE WITH LESS - MAXIMIZE YOUR ADAS DESIGN WITH THE MPQ8875A
Learn how to design a buck-boost for cold crank conditions.
REFERENCE DESIGN - SCALABLE AUTOMOTIVE POWER SUPPLY FOR AMD XILINX ZU+
This reference design is a power supply for automotive applications using the AMD Xilinx Zynq Ultrascale+ family of SoC (System on Chip) from the ZU2CG to the ZU5EG, using a flexible configuration based on multiple small DC/DC converters as PoL (Point of Load) supplies. The MPQ8886, with its dual 3A output and multi-IC operation, allows scalability to meet the specific needs of each ZU+ device an...
EASY, COST-EFFECTIVE PRE-BOOSTER FOR AUTOMOTIVE COLD CRANK CONDITIONS
Start-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...
Start-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...
ZYNQ ULTRASCALE+ MPSOC U2EG/U3EG ADAS SENSOR AND PROCESSING FOR CAMERA POWER REFERENCE DESIGN
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