STMicroelectronics Stepper Motor Driver IC Full Bridge 7A 8-45V 36-Pin SO-8 L6470PDTR

STMicroelectronics L6470PDTR Stepper Motor Driver IC is an advanced fully integrated solution designed using analog mixed signal technology for driving bipolar stepper motors with precision. It incorporates a dual low RDS(on) DMOS full bridge providing a 7A peak output current and a broad operating voltage range from 8 V to 45 V. The device is packaged in a compact 36-pin SO-8 surface mount package with dimensions 9.8 mm length, 4.5 mm width, and 1.05 mm height, making it suitable for compact electronic assemblies.

Equipped with on-chip current sensing and non-dissipative current control, this IC ensures efficient motor power management while providing comprehensive protections including overcurrent, thermal shutdown, low voltage, and motor stall detection. The digital control core supports up to 1/128 microstepping resolution, enabling smooth and precise motor positioning. It allows programmable acceleration, deceleration, and speed profiles, which can be configured through a standard 5 Mbps SPI interface, facilitating easy integration and control.

The L6470PDTR includes programmable power MOS slew rate control and sensorless stall detection, enhancing performance in demanding motor control applications. The device has low quiescent and standby currents, optimizing power consumption for battery-powered or low-power systems. Operating temperature ranges from -40°C to 150°C, making it suitable for industrial, robotic, automation, HVAC, and manufacturing applications requiring reliable stepper motor control.

Typical applications include bipolar stepper motors in industrial automation, robotics, CNC machinery, and instrumentation where precise motor control and reliability are critical.

Suitable for driving two-phase bipolar stepper motors with microstepping capability. Integrated dual low RDS(on) DMOS full bridge for efficient power switching. On-chip current sensing enables non-dissipative current control and overcurrent protection.

True 1/128 microstepping resolution for precise motor control. Digital control core supports user-defined motion profiles with acceleration and deceleration. Programmable speed profiles and power MOS slew rate. Sensorless stall detection and SPI interface for easy programming and control.

Low quiescent and standby current consumption. Two-level overtemperature protection and thermal, low bus voltage, overcurrent, motor stall protections. Operating temperature range from -40°C to 150°C.

This IC is ideal for motor control in various industrial, laboratory, automation, and HVAC systems. For more options and related components, explore the Electronics & Electricals Power Management ICs Motor Driver IC section at EnvMart.