TMC4671-LA

Motor Drivers, Controllers Overview

The TMC4671-LA is a fully integrated servo controller IC designed for Field-Oriented Control (FOC) of BLDC, PMSM, two-phase stepper, and DC motors. It features an integrated delta-sigma ADC front-end for current sensing and supports various position sensors including incremental encoders and analog Hall sensors. The device implements hardware-based control loops with programmable PWM frequencies up to 100 kHz. Operating voltage ranges from 1.65 V to 1.95 V, with a supply range of 3.15 V to 3.45 V. It operates within a temperature range of -40°C to +125°C TJ and is housed in a 76-QFN package.

Motor Drivers, Controllers Feature Summary

• Hardware-implemented FOC algorithms enabling torque, speed, and position control without code
• Integrated delta-sigma ADC frontend for precise current measurement and sensor interfacing
• Supports multiple motor types including BLDC, PMSM, stepper, and DC motors
• Flexible position feedback interface supporting digital and analog encoder inputs

Motor Drivers, Controllers Applications

• Servo motor control systems requiring high precision
• BLDC and PMSM motor drives in industrial automation
• Two-phase stepper motor positioning applications
• DC motor control in embedded systems

Motor Drivers, Controllers Procurement Notes

Verify component authenticity through authorized Analog Devices distributors. Confirm RoHS compliance status prior to integration. Check moisture sensitivity level handling requirements during storage and assembly. Ensure packaging integrity matches specified tray quantities. Validate datasheet revisions against design specifications.

Motor Drivers, Controllers Selection Notes

Select this controller for applications demanding integrated FOC capabilities with minimal external components. Consider the 76-QFN package size for PCB layout constraints. Evaluate thermal performance given the operating temperature range. Verify compatibility with required motor types and sensor interfaces before finalizing the design.

Motor Drivers, Controllers Part Context

The TMC4671-LA belongs to the TMC4671/TMC6100 series by Analog Devices/Maxim Integrated. It serves as a specialized motion controller within the PMIC category, focusing on advanced servo control functions. The LA suffix indicates specific packaging or variant characteristics within the product line.

Motor Drivers, Controllers Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Consult Analog Devices technical support for cross-reference options if availability is constrained.