L6219DSA – STMicroelectronics

The STMicroelectronics L6219DSA is a DMOS fully integrated stepper motor driver, designed for bipolar stepper motors. It features PWM current control with programmable off-time, providing precise microstepping capabilities. The device integrates power MOSFETs with a Voltage Rating of 50V and can deliver an Output Current Rating of 1.5A per channel. This significantly reduces external component count and simplifies PCB layout. Packaged in a PowerSO-36 SMD package, it offers efficient heat dissipation. The L6219DSA operates over an Operating Temperature Range of –25°C to 125°C. Common use cases include driving stepper motors in industrial automation equipment, robotics, and precision positioning systems. Its integrated protection features, such as thermal shutdown and undervoltage lockout, enhance system reliability and simplify fault management. The programmable current control allows for optimized motor performance and reduced acoustic noise.