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Analog Devices Inc./Maxim Integrated TMC2100-LA
- Part No.:
- TMC2100-LA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Motor Drivers, Controllers
- Package:
- 48-TQFP Exposed Pad
- Datasheet:
-
TMC2100-LA.pdf
- Description:
- STEPPER MOTOR DRIVER IC, STEP/DI
- Quantity:
- Payment:
- Shipping:
Inventory:1,340
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Product details
Overview
TMC2100-LA from TRINAMIC Motion Control GmbH & Co. KG is a standalone two-phase bipolar stepper motor driver IC with integrated power MOSFETs, 4.75–46 V DC supply range, 1.2 A RMS coil current (QFN-36), StealthChop™ for silent low-speed operation, and Step/Dir interface with microstep interpolation up to 256×. It enables compact motion control in 3D printers and office automation equipment without CPU intervention.
For engineers reviewing the TMC2100-LA datasheet, TMC2100-LA pinout, TMC2100-LA application, or TMC2100-LA equivalent, key selection considerations include its QFN-36 package size (5×6 mm²), hardware-configurable chopper mode (StealthChop/SpreadCycle), standstill current reduction (34% hold), internal 5 V regulator, and dual open-drain diagnostic outputs (ERROR/INDEX).
Technical Context
The TMC2100-LA implements dual chopper architectures: StealthChop™ uses voltage-mode PWM for near-silent operation at low velocities, while SpreadCycle™ employs fast-decay current regulation for high-dynamic torque across speed ranges. Both modes support microstep interpolation via MicroPlyer™, converting 4- or 16-step inputs into smooth 256-step motion.
Configuration is fully hardware-based via seven tristate-detectable CFG pins-no firmware or serial interface required. Motor current is set either by external sense resistors (RS = 0.15 Ω max) or internal MOSFET RDS(on) sensing with analog IREF scaling on AIN_IREF, enabling flexible design trade-offs between precision, BOM count, and thermal performance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 4.75–46 V DC - supports wide-range industrial and battery-powered systems without external DC-DC conversion. |
| Output Current | 1.2 A RMS per coil (QFN-36) - defines continuous thermal limit; peak 2.0 A achievable with proper PCB copper and heatsinking. |
| Microstepping | Up to 256× interpolated - reduces vibration and resonance, enabling smoother motion than native 4/16-step inputs. |
| Chopper Modes | StealthChop™ (voltage-mode, silent) + SpreadCycle™ (current-mode, high-torque) - selectable via CFG pins, no runtime switching. |
| Standstill Current | Automatically reduces to 34% of run current after ~3M clock cycles idle - cuts power dissipation and heat buildup during holding. |
| Diagnostic Outputs | ERROR (open-drain, 50kΩ pullup to 2.5 V) and INDEX (open-drain, 100kΩ pulldown) - enable real-time fault detection and microstep position tracking. |
| Package | QFN-36 (5×6 mm², 0.5 mm pitch, exposed thermal pad) - requires thermal vias to GND plane for reliable 1.2 A operation. |
Pinout & Package
Package: QFN-36 (5 mm × 6 mm, 0.5 mm pitch, exposed die pad connected to GNDD). Thermal performance depends on ≥6 thermal vias under the pad tied to a solid GND plane.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OA1, OA2, OB1, OB2 | Half-bridge motor outputs | Drive A/B phase coils directly; require low-inductance PCB routing and local 100 nF decoupling to GNDP. |
| BRA, BRB | Sense resistor connections | Connect external 0.15 Ω sense resistors to GNDA; tie to GND for internal RDS(on) sensing mode. |
| STEP, DIR | Digital motion control inputs | Rising-edge STEP with sampled DIR determines direction; compatible with standard MCU GPIOs (3.3 V/5 V tolerant). |
| CFG0–CFG6_ENN | Hardware configuration inputs | Tristate-detectable (GND/VCC_IO/open) - set microstep resolution, chopper mode, current scaling, and enable/standby behavior. |
| ERROR, INDEX | Open-drain status outputs | ERROR asserts low on overtemperature/short-circuit; INDEX pulses once per full step - both require external pullups. |
| VCC_IO, GNDD, GNDP, GNDA | Power domain references | VCC_IO powers digital logic (3.3–5 V); GNDD = digital GND; GNDP = power GND (connect near VS); GNDA = analog GND (separate plane). |
Key Features
| Feature | Design Value |
|---|---|
| StealthChop™ | Voltage-mode chopper eliminating audible motor noise below 200 RPM - critical for consumer-facing devices like scanners and POS terminals. |
| MicroPlyer™ interpolation | Converts coarse 4/16-step inputs into smooth 256-step motion - reduces mechanical resonance without increasing controller complexity. |
| Integrated 5 V regulator | Delivers regulated 5 VOUT (±2%) from VM input - eliminates need for external LDO in most designs, simplifying power tree. |
| Standstill current reduction | Soft-ramps coil current from 100% to 34% over 3–4 seconds after motion stops - lowers quiescent power by >60% with no torque loss on restart. |
| Full protection suite | Includes short-to-GND detection, overtemperature shutdown, undervoltage lockout, and emergency stop - enables robust field deployment without external monitoring. |
Applications
| 3D Printers | Office Automation |
|---|---|
Use Scenario: Precise layer deposition and gantry positioning in FDM/SLA printers with minimal acoustic signature. IC Role / Device Role / Timing Role: Standalone stepper driver controlling X/Y/Z axes via STEP/DIR signals; StealthChop ensures silent operation during slow print moves. Use Value: Eliminates need for external motion controller or firmware tuning; 256× interpolation reduces print artifacts and layer banding. |
Use Scenario: Paper feed, scanner carriage, and document handling in multifunction printers and copiers. IC Role / Device Role / Timing Role: Direct drive of NEMA17/NEMA14 motors with real-time diagnostics (ERROR/INDEX) for jam detection and position feedback. Use Value: Reduces BOM count by integrating MOSFETs, current sense, and regulation - shrinking PCB area by >30% vs discrete solutions. |
| CCTV Pan-Tilt Systems | ATM/Cash Recyclers |
Use Scenario: Smooth, quiet camera positioning in security domes requiring sub-degree accuracy and zero audible noise. IC Role / Device Role / Timing Role: StealthChop-enabled driver for pan/tilt motors; INDEX output synchronizes with encoderless position tracking. Use Value: Achieves <10 dB(A) acoustic reduction vs legacy drivers - meets indoor surveillance noise standards without mechanical dampening. |
Use Scenario: Bill transport, stacker actuation, and validator movement in high-reliability financial terminals. IC Role / Device Role / Timing Role: Fault-tolerant driver with ERROR output triggering immediate system halt on motor stall or short circuit. Use Value: Built-in diagnostics reduce field failure rate by enabling predictive maintenance - extends mean time between failures (MTBF) by 2.1×. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar stepper motor driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TMC2209-LA | Higher 2.0 A RMS current (QFN-48), UART interface, integrated UART-based configuration - adds firmware flexibility but increases layout complexity. | Required when dynamic runtime parameter adjustment (e.g., current ramping, stealth/silent mode toggle) is needed. | Choose TMC2209-LA only if UART control and higher current are mandatory; TMC2100-LA remains optimal for fixed-function, cost-sensitive designs. |
| DRV8825 | Lower 1.5 A RMS (TSSOP-28), no StealthChop, external sense resistors required, no integrated 5 V regulator - simpler but noisier and less integrated. | Suitable for basic motion where acoustic performance and miniaturization are secondary to lowest BOM cost. | Select DRV8825 only for legacy compatibility or ultra-low-cost prototyping; TMC2100-LA delivers superior noise, integration, and thermal efficiency. |
Compared with TMC2209-LA and DRV8825, the TMC2100-LA uniquely balances hardware simplicity, acoustic performance, and integration density - offering StealthChop silence and 5 V regulation in the smallest footprint (5×6 mm²) without sacrificing diagnostic capability or thermal headroom at 1.2 A.
Availability
TMC2100-LA is available at Aetrix Electronics and suitable for 3D printers, office automation equipment, and CCTV pan-tilt mechanisms requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for TMC2100-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 intelligent motion control ICs, founded in Hamburg in 1997 and focused on high-precision, low-noise motor drive solutions.
The TMC2100 product line was designed specifically for cost-sensitive, space-constrained stepper applications demanding silent operation and minimal external components - targeting consumer electronics, industrial peripherals, and embedded motion systems.
FAQ
What is the maximum continuous motor current supported by the TMC2100-LA?
The TMC2100-LA supports 1.2 A RMS per coil continuously in its QFN-36 package. This rating assumes adequate PCB copper area, thermal vias under the exposed die pad, and ambient temperature ≤ 70°C. Peak currents up to 2.0 A are permissible for short durations with proper thermal design. The TMC2100-LA datasheet specifies absolute maximum ratings and thermal derating curves in Section 15.3.
Does the TMC2100-LA require an external microcontroller to operate?
No, the TMC2100-LA is a standalone driver that operates without CPU interaction. It accepts STEP and DIR signals directly from any digital source (e.g., FPGA, MCU, or dedicated motion controller) and handles all motor control functions internally-including microstepping, current regulation, and diagnostics. The TMC2100-LA achieves full functionality using only hardware pin configuration (CFG0–CFG6_ENN).
How does StealthChop™ differ from SpreadCycle™ in the TMC2100-LA?
StealthChop™ is a voltage-mode chopper optimized for silent, smooth motion at low speeds (<200 RPM), while SpreadCycle™ is a current-mode chopper delivering higher torque and efficiency across wider speed ranges. In the TMC2100-LA, these modes are selected via CFG1/CFG2 pin states and cannot be switched dynamically during motion. The TMC2100-LA implements both algorithms in hardware with no software dependency.
Can the TMC2100-LA use internal current sensing instead of external sense resistors?
Yes, the TMC2100-LA supports internal current sensing using the MOSFET RDS(on) as the sense element. This requires tying BRA/BRB to GND and applying a reference current to AIN_IREF via an external resistor (RREF = 9.1 kΩ for max current). Internal sensing reduces BOM count and board space but trades off some current accuracy versus external 0.15 Ω resistors. The TMC2100-LA datasheet details this mode in Section 4.3 and Chapter 9.
What thermal management is required for reliable operation of the TMC2100-LA?
Reliable operation of the TMC2100-LA requires connecting the exposed die pad to a solid GND plane using ≥6 thermal vias (0.3 mm diameter, 0.8 mm pitch). The PCB must provide ≥250 mm² of 2-oz copper on inner layers beneath the IC. Ambient temperature must remain ≤ 70°C, and airflow or heatsinking is recommended above 1.0 A RMS. Thermal characteristics for the TMC2100-LA are specified in Section 15.3 of the official datasheet.
TMC2100-LA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- StealthChop™
- Package/Case:
- 48-TQFP 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:
- Step/Direction
- Technology:
- Power MOSFET
- Step Resolution:
- 1 ~ 1/256
- Applications:
- General Purpose
- Current - Output:
- 1.4A
- Voltage - Supply:
- 5.5V ~ 46V
- Voltage - Load:
- 5.5V ~ 46V
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TQFP-EP (7x7)
TMC2100-LA FAQ
1.How can I place an order for TMC2100-LA through Aetrix?
Please submit a Request for Quotation (RFQ) for TMC2100-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 TMC2100-LA reliable?
The price and inventory of TMC2100-LA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TMC2100-LA is usually 5 days.
3.What payment methods are accepted for TMC2100-LA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TMC2100-LA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TMC2100-LA?
TMC2100-LA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TMC2100-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 TMC2100-LA?
For technical support, including TMC2100-LA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TMC2100-LA requirements.
6.How does Aetrix verify that TMC2100-LA is sourced from the original manufacturer or authorized distributors?
All TMC2100-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 TMC2100-LA meets industry standards.
7.What is the process for return or replacement of TMC2100-LA?
All TMC2100-LA units undergo pre-shipment inspection (PSI). If there is an issue with TMC2100-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 TMC2100-LA part is unused and in its original packaging.
Return procedure for TMC2100-LA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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