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TMC4671-LA
TMC4671-LA
| Part Number | TMC4671-LA |
|---|---|
| Manufacturer | Trinamic (Analog Devices Inc.) |
| Category | Integrated Circuits (ICs) > PMIC – Motor Drivers, Controllers |
| Description | Fully integrated hardware FOC servo controller for 3-phase PMSM/BLDC, 2-phase stepper, and 1-phase DC/voice coil motors. |
| Stock Status | In Stock |
| Origin | Original Factory |
Product Overview
The TMC4671-LA is a fully integrated servo controller IC with hardware-based Field Oriented Control (FOC), designed by Trinamic (now part of Analog Devices). It integrates current, velocity, and position control loops entirely in dedicated hardware, offloading the host MCU from real-time computation. It supports 3-phase PMSM/BLDC, 2-phase stepper motors, as well as 1-phase DC and voice coil motors. The device interfaces with analog/digital Hall sensors and incremental encoders, and features a high-speed PWM engine up to 100 kHz. Housed in a compact QFN76-EP package, the enables high-performance servo operation with minimal external components.
Core Advantages
Hardware FOC Offloads Host MCU
All FOC vector calculations run in dedicated hardware, eliminating MCU load and ensuring consistent, low-latency control.
Multi-Motor Support
Covers 3-phase PMSM/BLDC, 2-phase stepper, and 1-phase DC/voice coil motors with one single IC.
Integrated Analog Front-End
Built-in multi-channel ΔΣ ADCs for precise motor phase current sensing, reducing external circuitry.
High PWM Frequency
Supports PWM frequencies from 25 kHz to 100 kHz for smooth, high-resolution motor control.
Key Specifications
| Brand | Trinamic (Analog Devices) |
|---|---|
| RoHS Status | RoHS Compliant / Lead-Free |
| EDA/CAD Model | 3D Model & PCB Footprint Available upon request |
| Motor Types | 3-phase PMSM/BLDC, 2-phase stepper, 1-phase DC/voice coil |
| Interface | SPI, Step/Direction, UART (debug) |
| Integrated ADC | Multi-channel ΔΣ ADCs for phase current sensing |
| PWM Frequency | 25 kHz to 100 kHz |
| Supply Voltage (VCC) | 3.3V / 5V |
| Digital I/O Voltage | 3.3V |
| Package | QFN76-EP (10.5 × 6.5 mm) |
| Mounting Type | Surface Mount (SMD/SMT) |
| Surface Marking / Silkscreen | TMC4671-LA Marking |
| Operating Temperature | -40°C to +125°C |
Typical Applications
- Robotics joints and collaborative robots
- CNC machinery, laser cutters, and 3D printers
- Medical pumps, ventilators, and surgical robotics
- Semiconductor automation and pick-and-place systems
- Industrial servo drives and high-precision motion control
Order & Shipping Info
| Minimum Order Quantity (MOQ) | 1 Piece |
|---|---|
| Shipping Time | Shipped within 1-2 business days |
| Delivery Time | 3-7 working days worldwide |
| Shipping Methods | DHL, UPS, FedEx, EMS |
| Payment Methods | T/T (Bank Transfer), PayPal, Credit Card, Western Union |
Technical Support
For datasheet, sample requests, stock check, or bulk pricing, please use the Quick Inquiry form. We will reply within 24 hours.
Frequently Asked Questions
Q1: Is your stock of TMC4671-LA components authentic and brand-new?
A: Yes, we provide 100% genuine and original Trinamic / Analog Devices products. All components are brand-new, unprogrammed factory stock with intact lot codes and date tracking symbols.
Q2: What are the main benefits of hardware-based FOC compared to software FOC?
A: Hardware FOC executes all vector calculations in dedicated logic, reducing MCU load to zero, eliminating software timing jitter, and achieving sub-microsecond response.
Q3: Can TMC4671-LA run sensorless FOC?
A: It is optimized for sensored operation (Hall, incremental encoder). While it includes basic flux observers, sensorless operation is limited to specific configurations.
Q4: How to get reference schematics and configuration tools?
A: Please submit a Quick Inquiry with your motor type and interface requirements. Our technical team will send official documentation and tools within 24 hours.
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