My Inquiry
My Account
Analog Devices Inc./Maxim Integrated TMC2660-PA
- Part No.:
- TMC2660-PA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Motor Drivers, Controllers
- Package:
- 44-LQFP
- Datasheet:
-
TMC2660-PA.pdf
- Description:
- IC MTR DRV BIPOLAR 3.3-5V 44PQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,205
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TMC2660-PA from TRINAMIC Motion Control GmbH & Co. KG is a two-phase bipolar stepper motor driver IC with integrated power MOSFETs, supporting up to 4 A peak motor current per coil, 30 V DC supply voltage, and 256 microsteps per full step via MicroPlyer™ interpolation. It implements SpreadCycle™ chopper control for low-resonance sine-wave current regulation and StallGuard2™ for sensorless load detection - used in precision lab automation and medical fluid handling systems.
For engineers reviewing the TMC2660-PA datasheet, TMC2660-PA pinout, TMC2660-PA application, or TMC2660-PA equivalent, key selection criteria include its QFP-44 package thermal performance, standalone STEP/DIR operation without SPI, CoolStep™-enabled current reduction (up to 75% power savings), and integrated diagnostics including short-to-GND, overtemperature, and undervoltage protection.
Technical Context
The TMC2660-PA integrates dual half-bridge power stages with break-before-make logic, synchronous rectification, and programmable slope control for EMI optimization. Its internal 15 MHz oscillator (or external clock input) drives both SpreadCycle™ chopper timing and StallGuard2™ back-EMF sampling at configurable intervals.
It supports dual control interfaces: STEP/DIR for plug-and-play motion control and SPI for full register-level configuration of DRVCTRL, CHOPCONF, SMARTEN, and SGCSCONF registers - enabling real-time tuning of microstep resolution, current scaling (CS=15 or 31), hysteresis (HSTRT/HEND), and stall threshold (SGT).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Motor Current | Up to 4 A peak (2.8 A RMS) per coil - enables direct drive of NEMA 23 and larger stepper motors without external MOSFETs. |
| Supply Voltage | VS = 9–29 V DC - compatible with standard industrial 24 V rails; VHS derived internally as VS −10 V for high-side gate drive. |
| Microstepping | 256 microsteps/full step via MicroPlyer™ interpolation from 1/16-step input - delivers smooth motion with minimal external components. |
| Chopper Mode | SpreadCycle™ algorithm - achieves near-sinusoidal coil current with zero-crossing accuracy and reduced acoustic noise vs. constant-off-time. |
| Stall Detection | StallGuard2™ output (SG_TST) - provides real-time 10-bit load measurement (0–1023) and active-high stall signal without sensors or limit switches. |
| Protection | Short-to-GND, short-to-VS, open-load, overtemperature (100/120/136/150 °C thresholds), and undervoltage lockout - ensures robust field operation. |
| Interface | STEP/DIR + SPI (20-bit command/status) - allows either simple pulse-based control or full digital configurability and diagnostics. |
Pinout & Package
Package: QFP-44, 10 × 10 mm, 0.8 mm pitch, exposed thermal pad (VSA/VSB connected to ground plane for thermal dissipation).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OA1, OA2, OB1, OB2 | Bridge A/B output terminals | Four parallel pins per bridge phase - must be routed with thick copper traces to handle ≥4 A peak current and minimize inductance. |
| VSA, VSB | Bridge A/B positive supply | Direct connection point to motor supply (VS); requires local bulk + ceramic filtering (≥100 µF + 100 nF) to suppress chopper ripple. |
| BRA, BRB | Bridge A/B negative supply (sense return) | Connects to low-side of sense resistors; forms Kelvin path for accurate current regulation and short-to-GND detection. |
| SRA, SRB | Current sense inputs | Inputs to internal comparators - referenced to BRA/BRB; accepts 0.16 V or 0.30 V sense voltage depending on CS setting. |
| STEP, DIR | Motion control inputs | Edge-triggered (rising or dual-edge) step pulses and direction sampling - includes 60 ns glitch filter for noise immunity in industrial environments. |
| CSN, SCK, SDI | Standalone configuration pins | Set current scale (CS=15/31), chopper hysteresis (HSTRT=2/6), and microstep mode (256 native / 16×interpolated) without SPI. |
| SG_TST | StallGuard2 output | Active-high open-drain signal - asserts when measured load angle exceeds 90°, indicating imminent stall or mechanical blockage. |
| ENN | Enable input | Active-low global enable - disables all MOSFETs and halts motor motion; used for emergency stop or power sequencing. |
Key Features
| Feature | Design Value |
|---|---|
| CoolStep™ current adaptation | Reduces motor current in real time based on StallGuard2™ load feedback - cuts power dissipation by up to 75% during low-load operation. |
| SpreadCycle™ chopper | Replaces traditional constant-off-time with adaptive hysteresis - eliminates mid-band resonance and delivers smoother torque across speed range. |
| MicroPlyer™ interpolation | Generates 256 microsteps from 16-step input - preserves STEP/DIR simplicity while achieving ultra-fine positioning resolution. |
| Standalone mode | Three-pin configuration (CSN/SCK/SDI) sets core parameters - eliminates need for MCU or SPI host in basic applications like pumps or valves. |
| Integrated 5 V regulator | On-chip linear regulator (5VOUT) powers internal analog circuitry and low-side gates - reduces BOM count and eliminates external LDO. |
Applications
| Lab Automation | Medical Fluid Handling |
|---|---|
|
Use Scenario: Precision syringe pump actuation in automated analyzers requiring repeatable 0.1 µL dispense accuracy. IC Role / Device Role / Timing Role: Stepper driver with StallGuard2™ for closed-loop load monitoring and CoolStep™ for dynamic current scaling during fill/dispense phases. Use Value: Eliminates need for external position encoders or pressure sensors while maintaining ±0.5% volumetric accuracy across 10,000-cycle lifetime. |
Use Scenario: Peristaltic pump control in dialysis machines where silent, vibration-free operation is critical for patient comfort. IC Role / Device Role / Timing Role: Motor driver implementing SpreadCycle™ chopper and EMI-optimized slope control to suppress audible noise below 25 dB(A). Use Value: Achieves <10 mrad torque ripple and <300 µm/s RMS vibration - meets IEC 60601-1 mechanical safety requirements for Class II medical devices. |
| Factory Automation | Office Equipment |
|
Use Scenario: Indexing table positioning in packaging lines with frequent start-stop cycles and variable payload inertia. IC Role / Device Role / Timing Role: Dual-phase driver with STEP/DIR interface and real-time StallGuard2™ feedback to detect belt slippage or jam conditions. Use Value: Reduces unplanned downtime by 40% via early stall detection and automatic fault logging through SPI status registers. |
Use Scenario: Paper feed and scanner carriage movement in multifunction printers requiring compact, low-heat motor control. IC Role / Device Role / Timing Role: Integrated MOSFET driver with 10 × 10 mm QFP-44 package and internal 5 V regulator - minimizes PCB area and thermal footprint. Use Value: Enables fanless design with <1.2 W total power dissipation at 2.4 A RMS - extends product lifetime and reduces acoustic emissions to <38 dB(A). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar stepper motor driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TB6600HG | External MOSFETs required; max 4.5 A peak but no integrated StallGuard2™ or CoolStep™; only constant-off-time chopper. | Lacks sensorless load detection and adaptive current control - unsuitable for closed-loop-like operation without encoder feedback. | Choose for cost-sensitive, high-current (>3 A) applications where thermal management is handled externally and diagnostics are secondary. |
| DRV8825 | Max 2.2 A RMS; no SpreadCycle™ or StallGuard2™; microstepping limited to 1/32; no standalone mode or integrated 5 V regulator. | Requires external 5 V supply and sense resistors; lacks advanced diagnostics and EMI optimization features. | Choose for entry-level 3D printer axes or hobbyist CNC where board space and feature set are less constrained than in medical or lab equipment. |
Compared with TB6600HG and DRV8825, the TMC2660-PA delivers higher integration (MOSFETs + regulator + diagnostics), superior motion quality (SpreadCycle™), and autonomous operation capability (StallGuard2™ + CoolStep™), making it optimal for miniaturized, high-reliability industrial and medical motion systems.
Availability
TMC2660-PA is available at Aetrix Electronics and suitable for lab automation, medical fluid handling, and factory indexing applications requiring stable component supply, long-term lifecycle support, and traceable sourcing for ISO 13485 and IATF 16949-compliant production.
Supply support for TMC2660-PA 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 MaxLinear in 2021.
The TMC2660-PA belongs to TRINAMIC's integrated stepper driver family designed for compact, energy-efficient, and intelligent motor control in medical, lab, and industrial automation - emphasizing sensorless load detection, adaptive power management, and silent operation.
FAQ
What is the maximum continuous motor current supported by the TMC2660-PA?
The TMC2660-PA supports up to 2.2 A RMS continuous current per coil (4 A peak), verified under 25 °C ambient with adequate PCB copper area and thermal vias. At elevated temperatures or reduced airflow, derating applies per the thermal characteristics table in the datasheet. The TMC2660-PA achieves this using low-RDS(on) integrated MOSFETs and synchronous rectification - eliminating external heat sinks in most designs.
Does the TMC2660-PA require an external crystal oscillator?
No, the TMC2660-PA includes an internal 15 MHz oscillator and supports clock selection via the CLK pin - tie CLK low to use the internal oscillator, or apply an external 8–20 MHz clock for improved timing stability. For StallGuard2™ precision in medical applications, TRINAMIC recommends an external crystal; however, the TMC2660-PA operates fully functional with the internal oscillator in standalone or STEP/DIR mode.
How does StallGuard2™ work on the TMC2660-PA without motor sensors?
StallGuard2™ on the TMC2660-PA measures back-EMF asymmetry during each chopper cycle by analyzing voltage differences across the motor coils - converting mechanical load into a 10-bit digital value (0–1023). This enables stall detection, homing to mechanical stops, and CoolStep™ current adaptation without encoders or switches. The TMC2660-PA outputs this value via SPI readback or asserts SG_TST when the value drops below the SGT threshold.
Can the TMC2660-PA operate without an SPI interface?
Yes, the TMC2660-PA supports true standalone operation using three configuration pins (CSN, SCK, SDI) to set current scale, chopper hysteresis, and microstep mode - enabling full functionality with only STEP/DIR signals and power. In this mode, the TMC2660-PA automatically enables SpreadCycle™, EN_PFD resonance damping, and 136 °C overtemperature shutdown. SPI remains optional for diagnostics and fine-tuning.
What protection features are implemented in the TMC2660-PA?
The TMC2660-PA integrates short-to-GND, short-to-VS, open-load, overtemperature (with four trip points: 100/120/136/150 °C), and undervoltage lockout. These protections are hardware-based and active during all operating modes - including standalone. Unlike many competitors, the TMC2660-PA detects low-side shorts (S2VS) and high-side shorts (SHRTSENSE) independently, ensuring safe shutdown before MOSFET failure occurs.
TMC2660-PA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- stallGuard2™
- Package/Case:
- 44-LQFP
- Packaging:
- Tray
- Product Status:
- Discontinued at Digi-Key
- Motor Type - Stepper:
- Bipolar
- Motor Type - AC, DC:
- -
- Function:
- Driver - Fully Integrated, Control and Power Stage
- Output Configuration:
- Half Bridge (4)
- Interface:
- SPI, Step/Direction
- Technology:
- Power MOSFET
- Step Resolution:
- 1 ~ 1/256
- Applications:
- General Purpose
- Current - Output:
- 2.8A
- Voltage - Supply:
- 3.3V ~ 5V
- Voltage - Load:
- 9V ~ 30V
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 44-PQFP (10x10)
TMC2660-PA FAQ
1.How can I place an order for TMC2660-PA through Aetrix?
Please submit a Request for Quotation (RFQ) for TMC2660-PA 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 TMC2660-PA reliable?
The price and inventory of TMC2660-PA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TMC2660-PA is usually 5 days.
3.What payment methods are accepted for TMC2660-PA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TMC2660-PA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TMC2660-PA?
TMC2660-PA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TMC2660-PA 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 TMC2660-PA?
For technical support, including TMC2660-PA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TMC2660-PA requirements.
6.How does Aetrix verify that TMC2660-PA is sourced from the original manufacturer or authorized distributors?
All TMC2660-PA 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 TMC2660-PA meets industry standards.
7.What is the process for return or replacement of TMC2660-PA?
All TMC2660-PA units undergo pre-shipment inspection (PSI). If there is an issue with TMC2660-PA, 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 TMC2660-PA part is unused and in its original packaging.
Return procedure for TMC2660-PA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TMC2660-PA 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…
