STMicroelectronics Stepper Motor Driver IC 28-Pin HTSSOP28 8-45V 3A Output L6470HTR

STMicroelectronics L6470HTR Stepper Motor Driver IC 28-Pin HTSSOP28 is an advanced, fully integrated microstepping motor driver with an embedded motion engine and SPI communication interface. It is suitable for driving two-phase bipolar stepper motors with high precision and microstepping capability up to 1/128 steps, enabling smooth and silent motor movement.

The driver operates over a wide voltage range from 8V to 45V, delivering a peak current of 7.0A and sustained RMS output current of 3.0A, allowing it to drive motors demanding high torque effortlessly. The low RDSon power MOSFETs enhance energy efficiency by minimizing conduction losses.

Programmable features include speed profile, positioning control, and power MOS slew rate adjustment, optimizing performance for various motor control applications. The device features sensorless stall detection, which improves reliability by monitoring motor load conditions without the need for additional sensors.

The SPI interface provides comprehensive control and diagnostics capabilities, facilitating seamless integration into industrial, robotics, automation, and manufacturing systems. The IC also includes programmable non-dissipative overcurrent protection mechanisms, safeguarding the device and motor from electrical faults.

Designed to withstand harsh environments, the L6470HTR operates reliably between -40°C and 150°C. The compact 28-pin HTSSOP package (9.7mm x 4.4mm x 1.2mm) makes it suitable for space-constrained PCB layouts in embedded and industrial motor control solutions.

Operates with supply voltage ranging from 8V to 45V. Supports output current of up to 3A RMS with 7.0A peak current capability. Features low RDSon power MOSFETs for efficient power management. Includes programmable speed profile, positioning, and power MOS slew rate.

Equipped with sensorless stall detection for reliable operation. Offers SPI interface for precise motor control integration. Includes programmable overcurrent protection for high and low-side MOSFETs. Designed to operate within temperature range of -40°C to 150°C.

Packaged in a 28-pin HTSSOP package measuring 9.7mm length, 4.4mm width, and 1.2mm height.

This Motor Driver IC is ideal for applications including industrial automation, robotics, CNC machines, HVAC systems, manufacturing equipment, and other embedded control systems requiring precision stepper motor control.

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