Analog Devices Inc./Maxim Integrated TMC2590-TA-T

Overview

TMC2590-TA-T from TRINAMIC Motion Control GmbH & Co. KG is a high-voltage, high-current stepper motor driver IC designed to control external N- and P-channel MOSFETs for two-phase bipolar stepper motors. It delivers 1–8 A motor current at 5–60 V DC supply, supports up to 256 microsteps per full step via MicroPlyer™ interpolation, and integrates SpreadCycle™ chopper, StallGuard2™ sensorless load detection, and CoolStep™ adaptive current control. It is used in precision motion systems such as 3D printers, CNC machines, and medical liquid handling.

For engineers reviewing the TMC2590-TA-T datasheet, TMC2590-TA-T pinout, TMC2590-TA-T application, or TMC2590-TA-T equivalent, key selection criteria include its external MOSFET architecture, 32-pin TQFP-EP package with exposed thermal pad, STEP/DIR + SPI dual interface support, integrated diagnostics (short-to-GND/VS, overtemperature, undervoltage), and compatibility with the TMC26x family for migration paths.

Technical Context

The TMC2590-TA-T operates as a gate driver controller-not a power stage-relying on external N/P-channel MOSFETs to deliver motor current. Its internal architecture includes dual DACs, sine/cosine lookup tables, programmable chopper logic (SpreadCycle™ or classic constant-off-time), and real-time StallGuard2™ back-EMF sensing for load angle estimation.

It features dual independent half-bridge control per phase (HA1/HA2/HB1/HB2 for high-side; LA1/LA2/LB1/LB2 for low-side), differential current sensing via SRA/SRB/SRAL/SRBL inputs, and embedded protection including break-before-make timing, short-circuit detection on all outputs, and 136°C overtemperature shutdown. Clocking supports internal 15 MHz oscillator or external 8–20 MHz source.

Key Specifications

Pinout & Package

Package: 32-pin TQFP-EP (7 mm × 7 mm body, 5 mm × 5 mm die area), thermally enhanced with exposed GND pad.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar stepper motor driver applications.

Compared with TMC2660-TA and TMC262-LA, the TMC2590-TA-T uniquely balances high power scalability (via external MOSFETs), advanced motion intelligence (StallGuard2™/CoolStep™), and diagnostic depth-making it optimal for 4–8 A applications demanding both performance and reliability.

Availability

TMC2590-TA-T is available at Aetrix Electronics and suitable for 3D printing motion control, CNC machine axis driving, and medical liquid handling requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for TMC2590-TA-T includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

TRINAMIC Motion Control GmbH & Co. KG is a German semiconductor company specializing in intelligent motion control ICs, known for patented technologies like StallGuard™, CoolStep™, and SpreadCycle™.

The TMC2590 product line targets high-power, high-precision stepper motor applications where external MOSFET flexibility, sensorless load monitoring, and energy-efficient current control are essential-especially in miniaturized industrial and medical equipment.

FAQ

What is the maximum motor current supported by the TMC2590-TA-T?

The TMC2590-TA-T supports motor currents from 1 A to 8 A RMS, determined by external MOSFET selection, sense resistor value (e.g., 100 mΩ for 2.8 A peak), and current scale (CS=15 or CS=31). It does not integrate power MOSFETs-current capability depends entirely on the external half-bridge design. The TMC2590-TA-T itself drives gates only; actual current limits are set by thermal design and MOSFET SOA.

Does the TMC2590-TA-T require an external clock source?

No-the TMC2590-TA-T includes an internal 15 MHz oscillator and automatically uses it unless an external clock signal (8–20 MHz) is applied to the CLK pin. In standalone mode, the internal oscillator is always active. External clocking is optional and used only when precise timing synchronization or jitter reduction is required across multiple TMC2590-TA-T devices.

How does StallGuard2™ work on the TMC2590-TA-T, and what is its output behavior?

StallGuard2™ on the TMC2590-TA-T measures motor load by analyzing back-EMF during motion, producing a 10-bit value (0–1023) read via SPI. The SG_TST pin asserts high when load exceeds the programmed SGT threshold-but only above a minimum velocity. It is not a static stall detector; it requires motion and returns meaningful data only within a calibrated velocity window. The TMC2590-TA-T does not generate stall interrupts autonomously.

Can the TMC2590-TA-T operate without SPI configuration?

Yes-the TMC2590-TA-T supports stand-alone mode using three configuration pins (CSN, SCK, SDI) to set microstep resolution (256 or interpolated 16), chopper hysteresis, and current scale. In this mode, features like CoolStep™, SpreadCycle™, and StallGuard2™ remain active but with fixed default parameters (e.g., SGT=2, EN_PFD=1). Full feature access and real-time tuning require SPI communication.

What thermal management considerations apply to the TMC2590-TA-T package?

The TMC2590-TA-T uses a 32-pin TQFP-EP package with an exposed GND pad requiring low-thermal-resistance PCB mounting. A minimum 4 cm² copper pour connected to the pad via ≥6 thermal vias (0.3 mm diameter) is recommended. The internal temperature sensor triggers shutdown at 136°C in standalone mode; SPI-accessible registers allow configuring 100/120/150°C thresholds. Ambient temperature derating applies above 70°C.