Mixed signal IC for aerospace actuation systems

Microchip has unveiled the LX4580, a highly integrated device designed to streamline actuation control in aerospace and defense platforms. This new component combines multiple sensing, control, and monitoring functions into a single unit, reflecting a broader industry trend towards integration in mission-critical electronics.

For readers of eeNews Europe, this announcement underscores how component-level integration can play a crucial role in reducing system complexity in safety-critical designs, especially in applications like More Electric Aircraft and autonomous defense systems.

Integration for Simplified System Complexity

The LX4580 is a 24-channel mixed-signal IC that aims to replace numerous discrete components typically found in actuation systems. It integrates features such as pressure and temperature sensing, PWM motor drive outputs, current sensing, Hall effect inputs, dual LVDT/resolver interfaces, and high-speed SAR ADCs.

By consolidating these functions, the LX4580 has the potential to minimize board space, wiring, and overall system weight. This is particularly advantageous in aerospace applications where size and weight limitations are critical. Furthermore, the integration facilitates synchronized data acquisition and timing alignment, essential for deterministic control systems.

Encased in a 144-pin LQFP package, the IC is tailored for use in drones, guided systems, launch platforms, and aircraft electrification initiatives.

Redundancy for Enhanced Reliability

A key feature of the LX4580 is its redundant architecture, engineered to meet fault tolerance requirements in safety-critical environments. By consolidating functions typically distributed across MCUs, ADCs, DACs, and driver ICs, the LX4580 could simplify certification processes while meeting reliability standards.

According to Ronan Dillion, director of Microchip’s high-reliability and RF business unit, “The LX4580 offers an exceptional level of functionality in a single device, enabling our customers to simplify designs that previously necessitated multiple ICs. By reducing system complexity and providing robust evaluation tools, we are empowering engineers to expedite development and deliver the next generation of dependable actuation systems.”

Microchip is also extending development support, including evaluation boards and application documentation showcasing integration with its microcontrollers. These resources are designed to streamline early design phases and assist engineers in navigating regulatory requirements more efficiently.