L6460

Overview

The L6460 is a fully integrated bipolar stepper motor driver and controller manufactured by STMicroelectronics. It combines control logic, power stage, and protection features in a single CMOS device. The component operates within a supply voltage range of 13V to 38V and supports step resolutions from full step to 1/16 microstepping. It utilizes an SPI interface for communication and is housed in a 64-TQFP-EP package with dimensions of 10x10 mm. The device is designed for surface mount installation and functions across a junction temperature range of -40°C to 125°C.

Feature Summary

• Integrates full control logic, power stage, and protection mechanisms into a single CMOS chip
• Supports programmable step resolution ranging from full step to 1/16 microstepping
• Features an eight-channel half-bridge output configuration for bipolar motor driving
• Utilizes Serial Peripheral Interface (SPI) for digital command and status communication

Applications

• General purpose motion control systems
• Bipolar stepper motor actuation
• Brushed DC motor control applications

Procurement Notes

Verify the specific ordering suffix required for the desired packaging format, as variations exist between tape-and-reel and tube options. Confirm current availability status, as this product line may be subject to discontinuation or lifecycle changes. Ensure that the selected variant matches the required thermal pad specifications for proper heat dissipation in the target application design.

Selection Notes

Choose the L6460 when a complete solution integrating both control algorithms and high-power driving stages is required. This component is suitable for designs needing precise microstepping capabilities without external logic controllers. Consider the 64-TQFP-EP package for its thermal performance and compact footprint in space-constrained PCB layouts requiring robust protection features.

Part Context

The L6460 belongs to a family of intelligent motor drivers developed by STMicroelectronics. It serves as a comprehensive solution for managing bipolar stepper motors by merging digital control interfaces with analog power handling. The device simplifies system architecture by eliminating the need for separate driver ICs and complex discrete protection circuits.

Replacement Considerations

No public confirmed substitute part numbers are available.