My Inquiry
My Account
Analog Devices Inc./Maxim Integrated TMC2209-LA
- Part No.:
- TMC2209-LA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Motor Drivers, Controllers
- Package:
- 28-VFQFN Exposed Pad
- Datasheet:
-
TMC2209-LA.pdf
- Description:
- IC MTR DRV 4.75-28V QFN28
- Quantity:
- Payment:
- Shipping:
Inventory:3,089
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TMC2209-LA from TRINAMIC Motion Control GmbH & Co. KG is a highly integrated stepper motor driver IC for two-phase bipolar stepper motors, delivering up to 2.0 A RMS (2.8 A peak) coil current, operating from 4.75–29 V DC, and supporting microstepping resolutions from full-step to 1/256 via MicroPlyer™ interpolation - deployed in 3D printers, office automation, and CCTV pan-tilt systems.
For engineers reviewing the TMC2209-LA datasheet, TMC2209-LA pinout, TMC2209-LA application, or TMC2209-LA equivalent, key selection criteria include StealthChop2™ silent operation at low speed, StallGuard4™ sensorless stall detection for homing, CoolStep™ adaptive current control, UART-based configuration, and QFN28 package thermal performance with exposed die pad.
Technical Context
The TMC2209-LA integrates dual full-bridge power stages with 170 mΩ typical RDS(on) per MOSFET, enabling efficient 2.0 A RMS drive without external sense resistors when configured for internal sensing. Its chopper architecture supports concurrent StealthChop2™ (for ultra-quiet standstill and low-speed motion) and SpreadCycle™ (for high-dynamic, low-vibration operation above ~100 RPM), selectable via pin or UART.
It implements a 256-step microstep sequencer with automatic standstill current reduction (IHOLD ≤ 50% IRUN), passive braking, freewheeling, and an internal 5 V regulator (5VOUT) with 2.2 µF decoupling. The single-wire UART interface (9600–500 kbaud, auto-baud detect, CRC optional) enables register-level tuning of chopper parameters, CoolStep thresholds, and StallGuard4 sensitivity - all storable in on-chip OTP memory.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Motor Type | Two-phase bipolar stepper motor driver with integrated power MOSFETs |
| Max Coil Current | 2.0 A RMS / 2.8 A peak - enables direct drive of NEMA 17–23 motors without heatsink in many applications |
| Supply Voltage | 4.75–29 V DC - supports 5 V, 12 V, and 24 V industrial and battery-operated systems |
| Microstepping | Full-step to 1/256 via hardware pins (8/16/32/64) or UART (up to 256) - eliminates need for external step interpolation |
| RDS(on) | 170 mΩ (HS & LS, typ. @ 25°C) - reduces conduction loss and thermal load in compact QFN28 package |
| Protection Features | Overtemperature shutdown, short-circuit detection, open-load diagnostics, and undervoltage lockout - ensures robust field operation |
| Interface Options | STEP/DIR + configuration pins (legacy mode) or single-wire UART (full diagnostics/control) - enables flexible system integration |
Pinout & Package
Package: QFN28, 5 mm × 5 mm, 0.5 mm pitch, thermally enhanced exposed die pad (GND-connected).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OA1, OA2, OB1, OB2 | Motor coil A/B high-side and low-side outputs | Drive stepper motor phases directly; require external flyback diodes only if using external sense resistors |
| ENN | Enable-not input | Active-low global enable - sets all H-bridge outputs to high-impedance when high |
| STEP, DIR | Step pulse and direction inputs | Supports rising- or dual-edge STEP triggering; DIR sampled on active STEP edge to determine rotation direction |
| PDN_UART | Power-down control / UART I/O | Low = automatic standstill current reduction; bidirectional UART when enabled - replaces ENN, DIAG, INDEX, MS1/MS2, VREF |
| DIAG, INDEX | Diagnostic output / index pulse | DIAG asserts high on stall or fault; INDEX pulses once per electrical rotation (4 full-steps) - enables precise sensorless homing |
| VREF | Analog current reference input | Sets IRUN via external voltage (0–2.5 V); bypassed when internal sense resistor mode is selected |
| SPREAD | Chopper mode select | Low = StealthChop2™ (silent), High = SpreadCycle™ (dynamic); configurable via UART to override pin state |
| MS1_AD0, MS2_AD1 | Microstep resolution config / UART address | Hardware-selectable 1/8, 1/16, 1/32, 1/64; also encode UART node address 0–3 when UART enabled |
Key Features
| Feature | Design Value |
|---|---|
| StealthChop2™ | Zero-audible-noise chopper algorithm that auto-tunes during first motion - eliminates mechanical resonance and enables silent 3D printer operation |
| StallGuard4™ | Sensorless load measurement derived from motor back-EMF - enables reliable end-stop-free homing and real-time overload detection without external sensors |
| CoolStep™ | Adaptive current reduction based on StallGuard4 feedback - cuts power dissipation by up to 75% and reduces motor heat without torque loss |
| MicroPlyer™ interpolation | Hardware-based 256× microstep enhancement - delivers smooth motion from coarse STEP/DIR inputs (e.g., 1/16-step controller → 1/256 effective resolution) |
| Internal sense resistors | Eliminates need for external Rsense components - simplifies BOM, PCB layout, and thermal design while maintaining ±5% current accuracy |
| OTP memory | One-time programmable storage for UART-configured parameters - enables factory tuning, reduces firmware overhead, and ensures consistent startup behavior |
Applications
| 3D Printer Motion Control | Office Automation Actuation |
|---|---|
|
Use Scenario: Precise X/Y/Z axis positioning in fused deposition modeling (FDM) printers with minimal acoustic noise and vibration. IC Role / Device Role / Timing Role: TMC2209-LA serves as the primary stepper driver, executing STEP/DIR commands while autonomously managing current, microstepping, and stall detection. Use Value: StealthChop2™ eliminates print-head whine during layer changes; CoolStep™ reduces nozzle heater interference by cutting motor heating; StallGuard4™ enables reliable Z-probe-less bed leveling. |
Use Scenario: Quiet, reliable paper feed, scanner carriage movement, and document tray actuation in multifunction printers and POS terminals. IC Role / Device Role / Timing Role: TMC2209-LA operates as a standalone STEP/DIR driver with pre-programmed OTP settings - no host CPU intervention required for basic motion. Use Value: Low standby current (<33% IRUN) meets ENERGY STAR® requirements; SpreadCycle™ ensures jam-resistant feeding under variable paper load; QFN28 footprint saves board space in compact enclosures. |
| CCTV Pan-Tilt Mechanism | Battery-Powered Surveillance Equipment |
|
Use Scenario: Smooth, silent camera repositioning in indoor security cameras where audible motor noise must be avoided. IC Role / Device Role / Timing Role: TMC2209-LA drives dual-axis stepper motors via UART-controlled velocity profiles, with INDEX used for absolute position recovery after power cycle. Use Value: StealthChop2™ ensures inaudible operation during night-mode tracking; internal 5VOUT powers auxiliary logic; diagnostic flags (DIAG) report mechanical binding before gear failure. |
Use Scenario: Extended runtime in portable surveillance units powered by 12 V lead-acid or Li-ion batteries. IC Role / Device Role / Timing Role: TMC2209-LA functions in low-power standby mode (STDBY pin asserted), with automatic IHOLD reduction and passive braking to minimize quiescent drain. Use Value: CoolStep™ extends battery life by reducing average coil current during partial-load scanning; internal sense resistors eliminate power-wasting external components; QFN thermal pad enables conduction cooling without fan. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar stepper motor driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TMC2208-LA | Lacks StallGuard4™, CoolStep™, and MicroPlyer™; same pinout and UART interface but reduced feature set | Suitable for cost-sensitive legacy upgrades where sensorless homing and adaptive current are not required | Select TMC2208-LA only if StealthChop2™ silence suffices and stall detection is handled externally |
| DRV8825PWPR | No integrated UART, no sensorless stall detection, no adaptive current; requires external sense resistors and higher gate-drive complexity | Fits designs already using TI's ecosystem and needing simple STEP/DIR-only control without diagnostics | Choose DRV8825PWPR when board space allows larger package and thermal management is handled externally |
Compared with TMC2209-LA, TMC2208-LA offers identical footprint and basic StealthChop but omits critical features for autonomous operation; DRV8825PWPR demands more external components and lacks embedded intelligence, increasing firmware and layout effort despite lower unit cost.
Availability
TMC2209-LA is available at Aetrix Electronics and suitable for 3D printer motion control, office automation actuation, and battery-powered surveillance equipment requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for TMC2209-LA 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 high-precision motion control ICs, founded in Hamburg in 1997 and focused on intelligent motor drivers with embedded algorithms.
The TMC22xx product line targets cost-effective, silent, and self-diagnosing stepper solutions for consumer, industrial, and embedded applications - designed to replace legacy drivers with minimal hardware change and maximum noise/energy reduction.
FAQ
What is the maximum motor current supported by the TMC2209-LA?
The TMC2209-LA supports up to 2.0 A RMS (2.8 A peak) coil current. This rating assumes proper PCB thermal design - including connection of the exposed die pad to a large GND plane with ≥6 thermal vias - and operation within the 4.75–29 V supply range. Derating applies above 70°C ambient temperature per the datasheet's thermal characteristics table.
Does the TMC2209-LA require external sense resistors?
No, the TMC2209-LA supports internal sense resistors, eliminating the need for external components. When BRA and BRB pins are tied to GND, the device uses its integrated current-sensing path. External sense resistors (e.g., 0.1 Ω) are optional and used only when higher current accuracy or custom thermal management is required - in which case RSA/RSB must be placed close to the respective pins.
How does StealthChop2™ differ from standard chopper modes in the TMC2209-LA?
StealthChop2™ is a voltage-mode chopper that automatically learns optimal switching parameters during initial motor motion, ensuring silent operation at standstill and low speeds without manual tuning. Unlike fixed-frequency PWM or current-controlled choppers, it dynamically adjusts timing to suppress audible noise and mechanical resonance - a capability confirmed in the TMC2209-LA datasheet Section 1.4 and validated across 3D printing and office automation use cases.
Can the TMC2209-LA operate without a microcontroller?
Yes, the TMC2209-LA supports fully standalone operation using STEP/DIR signals and hardware configuration pins (MS1/MS2/SPREAD). It includes an internal step pulse generator controllable via UART - allowing velocity-based motion without continuous STEP pulses. However, ramping must be implemented externally; the TMC2209-LA itself does not generate acceleration/deceleration profiles.
What package type and thermal considerations apply to the TMC2209-LA?
The TMC2209-LA uses a QFN28 (5 mm × 5 mm, 0.5 mm pitch) package with an exposed die pad that must be soldered to a solid GND plane. Thermal performance depends critically on this connection: ≥6 thermal vias (0.3 mm diameter) under the pad are recommended. Junction-to-board thermal resistance (RθJB) is 12.5°C/W per datasheet Rev. 1.09, enabling 2.0 A RMS operation without forced air in well-designed layouts.
TMC2209-LA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- stallGuard™
- Package/Case:
- 28-VFQFN Exposed Pad
- Packaging:
- Tray
- Product Status:
- Active
- Motor Type - Stepper:
- Bipolar
- Motor Type - AC, DC:
- -
- Function:
- Driver - Fully Integrated, Control and Power Stage
- Output Configuration:
- Step/Direction
- Interface:
- Step/Direction, UART
- Technology:
- Power MOSFET
- Step Resolution:
- 1 ~ 1/256
- Applications:
- Automation Control
- Current - Output:
- 2A
- Voltage - Supply:
- 4.8V ~ 5.25V
- Voltage - Load:
- 5.5V ~ 29V
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 28-QFN (5x5)
TMC2209-LA FAQ
1.How can I place an order for TMC2209-LA through Aetrix?
Please submit a Request for Quotation (RFQ) for TMC2209-LA on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TMC2209-LA reliable?
The price and inventory of TMC2209-LA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TMC2209-LA is usually 5 days.
3.What payment methods are accepted for TMC2209-LA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TMC2209-LA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TMC2209-LA?
TMC2209-LA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TMC2209-LA order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TMC2209-LA?
For technical support, including TMC2209-LA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TMC2209-LA requirements.
6.How does Aetrix verify that TMC2209-LA is sourced from the original manufacturer or authorized distributors?
All TMC2209-LA products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TMC2209-LA meets industry standards.
7.What is the process for return or replacement of TMC2209-LA?
All TMC2209-LA units undergo pre-shipment inspection (PSI). If there is an issue with TMC2209-LA, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TMC2209-LA part is unused and in its original packaging.
Return procedure for TMC2209-LA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TMC2209-LA Tags
-
DRV2603RUNR
Texas Instruments
-
DRV8837CDSGR
Texas Instruments
-
DRV8837DSGR
Texas Instruments
-
DRV8838DSGR
Texas Instruments
-
DRV8839DSSR
Texas Instruments
-
EMC2301-1-ACZL-TR
Microchip Technology
-
DRV8231ADSGR
Texas Instruments
-
EMC2302-2-AIZL-TR
Microchip Technology
-
DRV8800PWPR
Texas Instruments
-
DRV8835DSSR
Texas Instruments
-
EMC2303-1-KP-TR
Microchip Technology
-
DRV8876PWPR
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
