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Analog Devices Inc./Maxim Integrated TMC2202-WA
- Part No.:
- TMC2202-WA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Motor Drivers, Controllers
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
TMC2202-WA.pdf
- Description:
- STEPPER MOTOR DRIVER/CONTROLLER
- Quantity:
- Payment:
- Shipping:
Inventory:4,403
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Product details
Overview
TMC2202-WA from TRINAMIC Motion Control GmbH & Co. KG is a two-phase bipolar stepper motor driver IC with integrated power MOSFETs, supporting up to 1.4 A RMS (2 A peak) coil current, 4.75–36 V DC supply, and QFN32 wettable flank package. It implements StealthChop2™ for silent low-velocity operation and SpreadCycle™ for high-dynamic motion control, and features UART-based configuration and diagnostics. It serves as a drop-in upgrade in 3D printer motion control subsystems.
For engineers reviewing the TMC2202-WA datasheet, TMC2202-WA pinout, TMC2202-WA application, or TMC2202-WA equivalent, key selection criteria include microstep resolution flexibility (2–32 via pins, up to 256 via MicroPlyer™), internal sense resistor option, automatic standstill current reduction, passive braking capability, and UART-enabled chopper tuning - all critical for noise-sensitive embedded motion systems.
Technical Context
The TMC2202-WA integrates dual full-bridge power stages with typical RDS(on) of 280 mΩ (LS) and 290 mΩ (HS) at 25°C, enabling efficient 1.4 A RMS drive without external sense resistors when configured for internal sensing. Its chopper architecture supports concurrent StealthChop2™ (voltage-mode, auto-tuned, zero-noise standstill) and SpreadCycle™ (current-mode, cycle-by-cycle regulation) modes, selectable via UART or fixed by pin for legacy compatibility.
It accepts STEP/DIR inputs with DEDGE mode (rising/falling edge step detection), delivers INDEX pulses per electrical rotation, and provides DIAG error reporting. The internal 5V regulator (5VOUT), charge pump (CPI/CPO/VCP), and OTP-free register-based configuration distinguish it from TMC2224 (OTP-capable) and TMC2208 (QFN28, no SPREAD pin).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Motor Type | Two-phase bipolar stepper motor, direct full-bridge drive |
| Max Coil Current | 1.4 A RMS / 2 A peak - sets thermal design margin and torque capability |
| Supply Voltage | 4.75–36 V DC - supports wide-range industrial and battery-powered systems |
| Microstep Resolution | Hardware-selectable 2/4/8/16/32; interpolated to 256 via MicroPlyer™ - enables smooth low-speed motion without controller overhead |
| RDS(on) (HS/LS) | 290 mΩ / 280 mΩ typ. at 25°C - determines conduction loss and thermal dissipation at rated current |
| Interface | STEP/DIR + single-wire UART (9600–500 kbaud, auto-baud detect) - reduces MCU pin count and enables runtime tuning |
| Protection Features | Overtemperature, short-to-ground, open-load, undervoltage lockout - ensures robust field operation without external monitoring |
Pinout & Package
Package: QFN32, 5 × 5 mm², 0.5 mm pitch, wettable flank, exposed thermal pad (GND-connected). Designed for automated optical inspection (AOI) and high-reliability solder joint formation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OB2, OB1, OA2, OA1 | Motor coil output terminals | Direct connection points to stepper motor phase windings A+/A−/B+/B−; require low-inductance PCB routing |
| ENN | Enable-not input | Active-high disable: places all outputs in high-impedance state - essential for motor coasting or multi-driver sharing |
| STEP, DIR | Digital motion control inputs | Edge-triggered step command and polarity control; support DEDGE mode for halved signal toggle rate |
| PDN_UART | Power-down control / UART I/O | Configurable dual-function pin: GND = automatic standstill current reduction; UART traffic enables full diagnostics and chopper reconfiguration |
| VREF | Analog current reference | Sets run current (IRUN) when external sense resistors used; serves as reference for internal sense mode |
| DIAG, INDEX | Diagnostic outputs | Open-drain signals: DIAG asserts high on fault; INDEX pulses once per electrical rotation (4 fullsteps) - supports homing and status feedback |
| 5VOUT | Internal 5 V regulator output | Powers external logic or IO; requires 2.2–4.7 µF ceramic capacitor near pin for stability |
| VS, GND, Exposed Pad | Power and ground | VS supplies motor bridge; GND pins and exposed pad form low-impedance thermal and electrical return path - mandatory for thermal performance |
Key Features
| Feature | Design Value |
|---|---|
| StealthChop2™ chopper | Auto-tuned voltage-mode chopping that eliminates audible motor noise at standstill and low speeds - validated for office/medical environments |
| SpreadCycle™ chopper | High-precision current-mode chopping with fast decay control - delivers superior resonance suppression and torque at higher velocities |
| MicroPlyer™ interpolation | On-the-fly 256-microstep synthesis from coarse STEP inputs (e.g., 16-step commands) - preserves MCU resources while maximizing motion smoothness |
| Internal sense resistor option | Eliminates need for external current-sense resistors and associated layout area - reduces BOM cost and improves accuracy over temperature |
| Passive braking & freewheeling | Configurable stop modes that dissipate zero power during hold - critical for battery-powered and thermally constrained applications |
Applications
| 3D Printer Motion Control | POS Terminal Paper Feed |
|---|---|
Use Scenario: Precise layer deposition and gantry positioning in fused deposition modeling (FDM) printers. IC Role / Device Role / Timing Role: Primary stepper driver controlling X/Y/Z axes and extruder; receives STEP/DIR from motion controller and executes microstepped current profiles. Use Value: StealthChop2™ eliminates print-head whine during slow moves and pauses, improving user experience; MicroPlyer™ enables fine Z-axis resolution without upgrading host MCU firmware. | Use Scenario: Controlled paper advancement and cutter actuation in point-of-sale receipt printers. IC Role / Device Role / Timing Role: Dual-channel driver managing paper feed stepper and cutter solenoid interface; operates from 12 V supply with minimal external components. Use Value: Automatic standstill current reduction cuts idle power by >65%, extending system uptime in unattended retail deployments; compact QFN32 footprint fits tight mechanical envelopes. |
| HVAC Damper Actuation | Security Camera Pan/Tilt Mechanism |
Use Scenario: Positioning airflow dampers in commercial HVAC ductwork using low-speed, high-hold-torque motion. IC Role / Device Role / Timing Role: Standalone driver with internal pulse generator - velocity commands sent via UART eliminate need for external STEP clock source. Use Value: Passive braking holds damper position with zero power draw, reducing HVAC control board thermal load and energy certification burden. | Use Scenario: Smooth, silent pan-and-tilt movement in indoor security cameras where motor noise must not interfere with audio capture. IC Role / Device Role / Timing Role: Low-noise stepper driver interfaced to ARM-based video processor; UART enables real-time chopper parameter adjustment during motion profiling. Use Value: SpreadCycle™/StealthChop2™ hybrid mode delivers vibration-free tracking at medium speeds and absolute silence at dwell positions - meeting acoustic compliance for residential installations. |
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 | QFN28 package (5×5 mm), no SPREAD pin, identical chopper algorithms and current rating | Lacks hardware SpreadCycle enable; UART-only SpreadCycle activation limits real-time mode switching | Select when board space allows QFN28 and UART-based chopper control suffices |
| TMC2224-LA | QFN28 package, includes SPREAD pin and OTP memory for factory tuning | Supports pin-selectable SpreadCycle and permanent configuration storage - better for high-volume, fixed-function designs | Select when production requires pre-programmed chopper settings and pin-level SpreadCycle override |
Compared with TMC2208-LA and TMC2224-LA, the TMC2202-WA offers QFN32 wettable flank packaging for enhanced solder joint reliability and AOI compatibility, while retaining full UART configurability and StealthChop2™/SpreadCycle™ feature parity - making it optimal for industrial-grade motion modules requiring long-term manufacturability assurance.
Availability
TMC2202-WA is available at Aetrix Electronics and suitable for 3D printer motion subsystems, POS terminal paper feed mechanisms, and HVAC damper actuation requiring stable component supply, long-lifecycle support, and verified thermal performance in compact QFN packages.
Supply support for TMC2202-WA 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 acquired by Maxim Integrated (now part of Analog Devices) in 2021.
The TMC22xx product line targets cost-sensitive, noise-critical stepper applications - delivering silent, efficient, and highly configurable motor control in minimal footprint for consumer, industrial, and medical equipment.
FAQ
What is the maximum motor current supported by the TMC2202-WA?
The TMC2202-WA supports up to 1.4 A RMS (2 A peak) coil current. This rating assumes proper PCB thermal design - including ≥6 thermal vias under the exposed die pad connected to a solid GND plane - and operation within the 4.75–36 V DC supply range. Derating applies above 70°C ambient per the datasheet's thermal characteristics table. The TMC2202-WA achieves this with integrated MOSFETs having 280 mΩ (LS) and 290 mΩ (HS) RDS(on).
Does the TMC2202-WA require external current-sense resistors?
No, the TMC2202-WA supports internal sense resistor operation, eliminating the need for external sense resistors. When enabled via UART register configuration, it uses on-chip sensing elements referenced to the VREF pin. This reduces BOM count, PCB area, and temperature drift errors. External sense resistors remain supported for applications requiring higher measurement precision or custom gain scaling - the TMC2202-WA accommodates both modes without hardware change.
How does StealthChop2™ differ from standard chopper modes in the TMC2202-WA?
StealthChop2™ is an auto-tuned voltage-mode chopper that eliminates audible motor noise at standstill and low speeds by dynamically adjusting switching frequency and modulation to avoid mechanical resonance. Unlike fixed-frequency choppers, it learns optimal parameters during initial motion and continuously refines them. In the TMC2202-WA, StealthChop2™ operates independently of SpreadCycle™ and can be combined with it - ensuring silence at rest and high dynamics during motion. No manual tuning is required for basic operation.
Can the TMC2202-WA operate without a microcontroller?
Yes, the TMC2202-WA supports standalone operation using STEP/DIR signals only - no UART or firmware needed. Microstep resolution is set by MS1/MS2 pins; current is scaled via VREF; and automatic standstill current reduction is enabled by grounding PDN_UART. For advanced functions like 256-microstep interpolation or passive braking, UART configuration is required - but the TMC2202-WA remains fully functional as a basic driver without any serial interface.
What package type and thermal considerations apply to the TMC2202-WA?
The TMC2202-WA uses a QFN32 wettable flank package (5 × 5 mm², 0.5 mm pitch) with an exposed thermal pad. This pad must be soldered to a large GND copper area using ≥6 thermal vias to an internal GND plane. The datasheet specifies a θJA of 35°C/W under recommended layout - critical for sustaining 1.4 A RMS. Wettable flanks enable automated optical inspection of solder joints, improving manufacturing yield in high-reliability production.
TMC2202-WA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 32-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:
- Half Bridge (4)
- Interface:
- PWM, Step/Direction, UART
- Technology:
- Power MOSFET
- Step Resolution:
- 1/2, 1/4, 1/8, 1/16, 1/32
- Applications:
- Printer
- Current - Output:
- 2A
- Voltage - Supply:
- 4.75V ~ 36V
- Voltage - Load:
- 4.75V ~ 36V
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-QFN (5x5)
TMC2202-WA FAQ
1.How can I place an order for TMC2202-WA through Aetrix?
Please submit a Request for Quotation (RFQ) for TMC2202-WA 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 TMC2202-WA reliable?
The price and inventory of TMC2202-WA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TMC2202-WA is usually 5 days.
3.What payment methods are accepted for TMC2202-WA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TMC2202-WA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TMC2202-WA?
TMC2202-WA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TMC2202-WA 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 TMC2202-WA?
For technical support, including TMC2202-WA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TMC2202-WA requirements.
6.How does Aetrix verify that TMC2202-WA is sourced from the original manufacturer or authorized distributors?
All TMC2202-WA 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 TMC2202-WA meets industry standards.
7.What is the process for return or replacement of TMC2202-WA?
All TMC2202-WA units undergo pre-shipment inspection (PSI). If there is an issue with TMC2202-WA, 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 TMC2202-WA part is unused and in its original packaging.
Return procedure for TMC2202-WA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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