 Hello, and welcome to this presentation on L6474, the easy, flexible, and innovative ST Spin Microstepping Driver. ST offers a wide selection of ICs dedicated to motor control to match at best an application spectrum that spans widely across power ratings and motor types. The ST Spin product portfolio includes monolithic drivers for brushed DC, stepper motors, and three-phase brushless motors. They embed all the functions needed to drive the motor efficiently and with the highest accuracy, while ensuring robustness and reliability thanks to a comprehensive set of protection and diagnostic features. Controllers for stepper motors embedding all the features to drive external discrete power MOSFETs and simplify the design. System in package solutions integrate a small QFN package, a high-performing controller, and discrete MOSFETs to ensure unprecedented power density. The L6474 is a monolithic driver that implements a simple and smart step-clock microstepping and features an innovative adaptive decay control for smooth motion and accurate positioning. The L6474 can serve multiple applications in the industrial and consumer markets. The product has the following features. It implements an easy-to-be-used step-clock microstepping, providing high performance thanks to an innovative control technique. An SPI interface allows easy communication with a microcontroller and provides cost-effective configurability of the device. Full digital diagnostics are also offered. The device makes microstepping control very easy. It allows step-clock and direction control through a couple of dedicated pins. The microcontroller drives the clock train of impulses and controls the rotation direction. The L6474 can be configured to work in normal driving or microstepping, where the microsteps can be one-quarter, one-eighth, or one-sixteenth for the finest resolution. An advanced control algorithm gives the L6474 very high accuracy in positioning and allows a smooth and silent motion. The advanced control technique implements an adaptive decay algorithm that generates a mix of fast and slow decay according to the motion under execution. Fast decay increases current ripple, and so increases the torque ripple. As you can see, the algorithm progressively reduces the fast decay in favor of slow decay. This reduces the torque ripple and results in a smoother and silent motion. The SPI interface makes the communication with the microcontroller direct and easy. Furthermore, the SPI interface enables internal registers to be programmed, making the L6474 suitable for different designs and applications. Scalability is achieved by programming the overcurrent and undervoltage thresholds and the step mode. Another important feature offered by the device is the digital diagnostics. A full set of diagnostics information can be read through the SPI interface, such as thermal warning and thermal shutdown, undervoltage lockout, and overcurrent protection. All this information can be easily queried from the internal register, without the need of further external circuitry. So, the L6474's SPI and internal registers help reduce the bill of material. The product offers full protection against undervoltage and over-temperature. Furthermore, a current analog digital converter implements a non-dissipative overcurrent protection, with no need for external shunts. The device also implements daisy chain logic, which with a single SPI line from the system microcontroller, allows you to drive multiple motors with a unique command. The L6474 is offered with a full set of documentation, support boards, and software. You can discover more at st.com slash stspin. Thank you for the attention.