USB Type-C Power Delivery
USB Type-C Power Delivery Content
USB Type-C power delivery (PD) is gaining popularity across applications and markets, including in automotive. USB ports have become an expected standard in most car models, and are typically expected to offer both charging and data functionality. USB Type-C improves on older USB designed by offering a smaller, reversible port for easy plug-in and double the transfer speed of USB 3.0. USB PD protocol enables USB Type-C to deliver up to 100W of power, which is leading to rapid adoption in new products. However, automotive USB Type-C designs must still meet strict automotive safety standards such as EMC and thermal regulations. Each new feature added to the latest vehicles also adds design complexity, and puts space at a greater premium to ensure comfort and convenience for the driver and passengers.
Our top-tier portfolio of automotive-grade components includes USB PD controllers, power modules, buck-boost controllers and converters, and step-down converters. These parts are AEC-Q100 qualified, and offer cutting-edge integration in tiny package sizes to simplify the design process and speed time-to-market.
MPS’s highly efficient, cost-effective power management solutions provide everything you need to create the best products for automotive USB Type-C power delivery.
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DESIGNING THE FEEDBACK VOLTAGE RESISTOR DIVIDER IN A DC/DC CONVERTER
The 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 ...
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...
CONTROLLING EXCESSIVE CONDUCTED EMI UNDER A LONG-LINE LOAD (PART III)
This article is the final part of a three-part series exploring methods for analyzing and improving excessive EMI under long-line loads. Part I discussed the common-mode (CM) EMI model and considered the influence of electric field coupling and magnetic field coupling. Part II validated the transmission line theory through a series of computations. Part III will focus on three methods that were im...
CONTROLLING CONDUCTED EMI WHEN USING LONG OUTPUT LINES (PART II)
This article is part two in a three-part series exploring methods to analyze and improve excessive EMI under long-line loads. Part I reviewed the common-mode (CM) EMI model and considered the influence of electric field coupling and magnetic field coupling. Part II will discuss the transmission line effect on the output’s long-line impedance to ground, using a series of equations. Part III will re...
CONTROLLING CONDUCTED EMI WHEN USING LONG OUTPUT LINES (PART I)
In many automotive electronics applications, the load must be connected to the motherboard via a long output line, resulting in excessive conducted EMI. Automotive applications that require long-line loads include Class-D power amplifiers, LEDs, and USB chargers (see Figure 1). This article is the first part of a three-part series exploring methods to analyze and improve excessive conducted E...
HOW INTEGRATION IS ADVANCING INNOVATIONS IN POWER MANAGEMENT
As modern devices become smarter and more customizable, consumers are also demanding that they be smaller and more powerful. This has driven demand for technology that can manage thermals with ever-higher power densities as processing power increases. MPS is innovating and creating highly integrated converters and controllers with cutting-edge efficiency and power density. By integrating the entir...
USB TYPE-C BOOST AND BUCK-BOOST SOLUTIONS FOR PPS
Generating USB Type-C (also called USB-C) charging power for multiple peripherals requires a flexible DC/DC converter that can work with a controller to deliver the desired voltage and current capability to the corresponding device. As power density increases — particularly in multiple-power port or hub applications — efficiency becomes paramount, and requires the lowest power loss to ...
QUICK TIPS TO DIAGNOSE AND STABILIZE AN UNSTABLE SWITCHING POWER SUPPLY
An unstable power supply can cause severe system issues, such as audible noise from the passive components, unexpected jittering in the switching frequency, extreme oscillations on the output voltage during load transient events, and failures in the semiconductor switches. While there are various reasons for instability, an un-tuned compensation network accounts for majority of instability issues ...
USING EXTERNAL KNOBS TO IMPROVE TRANSIENT PERFORMANCE OF BUCK REGULATORS WITH AN INTEGRATED COMPENSATION NETWORK
The high power density requirement and board-level space constraints in modern applications — such as lighting, ADAS, and USB — call for higher integration in buck regulators. There is a trend to integrate MOSFETs and compensation networks inside the chip. This integration of the compensation network’s passive components saves cost, board space, and design iterations. However, it...
MPQ2908 48V BUCK CONVERTER FOR AUTOMOTIVE REFERENCE DESIGN
New automotive designs are adopting 48V power systems in order to reduce power loss in the vehicle’s cable harnesses and reduce their weight. However, this presents a challenge when trying to comply with EMC regulations. Success is possible through thoughtful component placement and PCB layout, together with techniques like frequency spread-spectrum (FSS). This reference design showcases a ...
POWER MODULES SOLVE POWER DESIGN CHALLENGES
Learn how easy-to-use, fully integrated power solutions can solve problems and bring products to market faster.
APEC 2019 - MPQ4230 DEMO
USB-PD power charging station for automotive applications Learn more about the MPQ4230 USB Charging Port Solutions
MPM MODULE HIGHLIGHTS
This video features MPS’ low voltage (6V) modules, ranging from 600mA to 3A. It highlights the benefits of using modules and MPS’ advantages. MPM Power Modules >
TRACTION INVERTER SYSTEM
An engine roaring is becoming a sound of the past, as the adoption of electric vehicles (EVs) continues to grow at an exponential rate. Soon the only sound will be the whirring an EV motor as the traction inverter delivers power from the battery. Traction inverters are instrumental in converting energy from the high-voltage battery (400V/800V) into three-phase AC energy to drive the vehicle’s moto...
ONBOARD CHARGING MODULE (OBCM)
Electric vehicles (EVs) are becoming more present every day, with the adoption of EVs growing at an exponential rate. Onboard charging (OBC) is a very important part of EVs, since it determines the maximum possible charge rate while an AC charger is connected to the vehicle. The maximum charge capability for a fully electric vehicle is typically between 6.6kW and 22kW, and for a plug-in hybrid veh...
DEVELOPING A SMART COCKPIT SOLUTION WITH MPS AND SEMIDRIVE
There are a wide array of features in a smart car’s cockpit that can enhance driving experience. For example, full LCD central control screens and high-definition displays have made user experience smoother and simpler. With the addition of voice recognition, drivers can make calls and use intelligent navigation. High-quality sound and ambient lighting provide an immersive experience while listeni...
12V TO 48V BIDIRECTIONAL CONVERTER SYSTEM
DC FAST CHARGING STATION
DC fast charging stations are becoming more common with the increased adoption of electric vehicles. Charging stations are a vital part of the infrastructure along major highways and populated suburbs, ensuring that electric vehicles have a place to charge during long-distance travel and day-to-day driving. These systems are often comprised of multiple 25kW to 75kW modules to create fast charging ...
FROM COLD CRANK TO LOAD DUMP: A PRIMER ON AUTOMOTIVE TRANSIENTS
Advances in automotive technology have dramatically increased the number of sophisticated electronic circuits required to improve driving experience and safety in a typical automotive system. New vehicles provide infotainment systems with high-resolution displays, an enhanced user interface, and numerous connectivity options. Improved safety features include LiDAR for collision avoidance, as well ...
WHEN IS IT BENEFICIAL TO PLACE A COPPER LAYER BENEATH DC/DC POWER SUPPLIES?
Engineers often disagree on whether the inductive bottom of DC/DC power supplies should be laid with copper. The first argument is that laying copper under the inductor produces eddy currents on the ground plane. As a result, the eddy current affects the power inductor’s inductance and increases the system loss, and the ground plane noise impacts other high-speed signals. The second argument is th...
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...
MPS SOLUTIONS FOR INTELLIGENT DRIVING
The 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...
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...
DOMAIN CONTROL MODULE - AUTOMOTIVE POWER STAGE FOR ADAS APPLICATIONS
Advanced driver assistance systems (ADAS) have experienced an astonishing evolution over the last few decades, and todays cars incorporate a large number of sensors and cameras that monitor every part of the vehicle, as well as its surroundings. As a consequence, the power requirements of these systems has increased, bringing new challenges to the power supply design. This reference design serves ...
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