Advanced 48V System Solutions for Automotive and Industrial Applications
Delivering Higher Efficiency and Power Density to Meet Tomorrow's Demands
Why Upgrade to 48V? Overcoming the Limitations of 12V Power
The shift to a 48V architecture offers fundamental advantages for any high-power design. By directly addressing the core engineering challenges of power loss, thermal management, and system cost, 48V systems enable a new level of efficiency and performance.
By using a voltage that is four times higher than a 12V rail, a 48V system delivers the same power with only 25% of the current. This is critical because power loss in your wiring is governed by the formula Ploss = I²R. This drastic reduction in current results in a decrease of up to 95% in resistive power losses. This significant gain means more power reaches the load instead of being wasted as heat, leading to a direct improvement in system efficiency and a less complex thermal design.
Lower currents allow for the use of thinner, lighter, and less expensive copper wiring, which reduces the overall weight and bill of materials (BOM) cost of your system. This is especially critical in weight-sensitive automotive and robotics applications. Furthermore, the significant reduction in waste heat allows for smaller and more integrated thermal management solutions, enabling you to design more compact and power-dense systems.
48V architecture provides the ideal balance of power and safety. Systems operating below the 60Vdc threshold are classified as SELV (Safety Extra Low Voltage). This means you gain the immense benefits of higher power delivery without the significant cost, complexity, and certification burdens associated with high-voltage designs, such as heavy shielding and specialized connectors. It's the engineering sweet spot for high-performance applications.
48V Solutions Across the Ecosystem
Explore how our solutions are enabling higher efficiency, greater power density, and smarter control across key industries.
Automotive
Powering the Future of Mobility
Manage power in mild-hybrid powertrains, zonal architectures, and high-demand EV loads with our portfolio of robust, AEC-Q100 qualified, and functionally safe solutions.
Data Center
Enabling High-Density AI Computing
Maximize efficiency and minimize thermal loss in high-density servers. Our power ICs and drivers are optimized for 48V power distribution and advanced liquid cooling systems.
Industrial
Driving the Next Wave of Automation
Design compact, high-performance motor control systems for robotics, AGVs, and power tools. Our robust gate drivers and integrated controllers deliver precision and efficiency.
Why Leading Engineers Choose Allegro
Our solutions aren't just 48V-tolerant; they are 48V-optimized. We deliver performance and robustness that adapted 12V components simply cannot match.
100V+ High-Voltage Headroom
Our SG8 technology features a 122V breakdown voltage, providing the critical headroom to withstand harsh 70V-80V transients and ensuring your designs survive the most rigorous transient immunity tests.
Integrated Power-Thru Technology
Our Power-Thru solutions slash PCB footprint by 50% and reduce EMI, enabling higher power density in the most constrained designs.
Powering Electrification and Autonomy
Allegro’s 48V-ready sensors and power ICs are the building blocks for the next generation of automotive and industrial systems.
Start Your 48V Design with an Expert
Have a specific challenge or need help selecting the right component? Our team of application experts is ready to support your design.
Documentation & Resources
Technical Article
Solving EV Charging with High-Performance Gate Drivers and Current Sensors
Before EVs can reach true widespread adoption, one of the biggest obstacles is the accessibility, reliability and performance of EV chargers.
Application Note
Using SENT Communication Output Protocol with A17700 Pressure Interface Sensor
AN296244 - This paper provides an overview of the general format of a SENT message and explains how the Allegro A17700 pressure interface sensor can be configured to use SENT to communicate pressure, temperature, and other useful application specific information.
Brochure
Brochure: A17700 Accuracy Under Pressure
As the demand for energy-efficient systems continues to rise, so does the need for pressure regulation in liquid and gas carrier systems. Allegro’s A17700 is a highly accurate interface IC that incorporates a top-of-the-line signal conditioning algorithm designed for resistive bridge pressure sensors.
Application Note
Calibration of A17700 Pressure Sensor Interface
AN296197 - This application note aims at providing a complete example of calibration using A17700 Pressure Sensor Interface.
Application Note
Guide and Usage of Resistive Bridges for Pressure Measurement with A17700
AN296202 - This application note explains the science behind the strain gauge used for pressure sensing, most common strain gauges on the market, sensing solutions presented by different strain gauge configurations, and A17700 input specifications.
Technical Article
Magnetic Position Sensors in Robotics
A key function of any robot is to interact with the physical world surrounding it. To achieve this, robots contain various actuators that require accurate position sensing to enable precise movement and functionality.