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Controladores para motores
Drivers para motores paso a paso

DRV8886AT

ACTIVO

Controlador de motor bipolar de paso de 37 V y 2 A con detección de corriente integrada y tecnología

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DRV8886AT

ACTIVO
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Detalles del producto

Vs ABS (max) (V) 40 Vs (min) (V) 8 Peak output current (A) 3 Control mode STEP/DIR Control interface Hardware (GPIO) Number of full bridges 2 Full-scale current (A) 2 RDS(ON) (HS + LS) (mΩ) 550 Sleep current (µA) 20 Microstepping levels 16 Decay mode Mixed, Slow, Smart Tune Features Integrated Current Sensing, Smart Tune Rating Catalog Operating temperature range (°C) -40 to 125
Vs ABS (max) (V) 40 Vs (min) (V) 8 Peak output current (A) 3 Control mode STEP/DIR Control interface Hardware (GPIO) Number of full bridges 2 Full-scale current (A) 2 RDS(ON) (HS + LS) (mΩ) 550 Sleep current (µA) 20 Microstepping levels 16 Decay mode Mixed, Slow, Smart Tune Features Integrated Current Sensing, Smart Tune Rating Catalog Operating temperature range (°C) -40 to 125
WQFN (RHR) 28 19.25 mm² (5.5 mm × 3.5 mm) HTSSOP (PWP) 24 49.92 mm² (7.8 mm × 6.4 mm)
  • PWM microstepping stepper motor driver
    • Up to 1/16 microstepping
    • Non-circular and standard ½ step modes
  • Integrated current sense functionality
    • No sense resistors required
    • ±6.25% Full-scale current accuracy
  • Smart tune adaptive decay technology,
    slow, and mixed decay options
  • 8 to 37-V Operating supply voltage range
  • Low RDS(ON): 550 mΩ HS + LS at 24 V, 25°C
  • High current capacity
    • 3-A Peak per bridge
    • 2-A Full-scale per bridge
    • 1.4-A rms per bridge
  • Dynamic and fixed off-time PWM current regulation
  • Simple STEP/DIR interface
  • Low-current sleep mode (20 µA)
  • Small package and footprint
    • 24 HTSSOP PowerPAD™ package
    • 28 WQFN package
  • Protection features
    • VM undervoltage lockout (UVLO)
    • Charge pump undervoltage (CPUV)
    • Overcurrent protection (OCP)
    • Thermal shutdown (TSD)
    • Fault condition indication pin (nFAULT)
  • PWM microstepping stepper motor driver
    • Up to 1/16 microstepping
    • Non-circular and standard ½ step modes
  • Integrated current sense functionality
    • No sense resistors required
    • ±6.25% Full-scale current accuracy
  • Smart tune adaptive decay technology,
    slow, and mixed decay options
  • 8 to 37-V Operating supply voltage range
  • Low RDS(ON): 550 mΩ HS + LS at 24 V, 25°C
  • High current capacity
    • 3-A Peak per bridge
    • 2-A Full-scale per bridge
    • 1.4-A rms per bridge
  • Dynamic and fixed off-time PWM current regulation
  • Simple STEP/DIR interface
  • Low-current sleep mode (20 µA)
  • Small package and footprint
    • 24 HTSSOP PowerPAD™ package
    • 28 WQFN package
  • Protection features
    • VM undervoltage lockout (UVLO)
    • Charge pump undervoltage (CPUV)
    • Overcurrent protection (OCP)
    • Thermal shutdown (TSD)
    • Fault condition indication pin (nFAULT)

The DRV8886AT is a stepper motor driver for industrial and consumer end equipment applications. The device is fully integrated with two N-channel power MOSFET H-bridge drivers, a microstepping indexer, and integrated current sensing. The DRV8886AT is capable of driving up to 2-A full scale or 1.4-A rms output current (24-V and TA = 25°C, dependent on PCB design).

The DRV8886AT uses an internal current sense architecture to eliminate the need for two external power sense resistors saving PCB area and system cost. The DRV8886AT uses an internal PWM current regulation scheme adjustable between smart tune adaptive decay technology, slow, and mixed decay options. Smart tune adaptive decay technology automatically adjusts for optimal current regulation performance and compensates for motor variation and aging effects.

A simple STEP/DIR interface allows an external controller to manage the direction and step rate of the stepper motor. The device can be configured in different step modes ranging from full-step to 1/16 microstepping. A low-power sleep mode is provided for very low standby quiescent standby current using a dedicated nSLEEP pin.

Device protection features are provided for supply undervoltage, charge pump faults, overcurrent, short circuits, and overtemperature. Fault conditions are indicated by the nFAULT pin.

The DRV8886AT is a stepper motor driver for industrial and consumer end equipment applications. The device is fully integrated with two N-channel power MOSFET H-bridge drivers, a microstepping indexer, and integrated current sensing. The DRV8886AT is capable of driving up to 2-A full scale or 1.4-A rms output current (24-V and TA = 25°C, dependent on PCB design).

The DRV8886AT uses an internal current sense architecture to eliminate the need for two external power sense resistors saving PCB area and system cost. The DRV8886AT uses an internal PWM current regulation scheme adjustable between smart tune adaptive decay technology, slow, and mixed decay options. Smart tune adaptive decay technology automatically adjusts for optimal current regulation performance and compensates for motor variation and aging effects.

A simple STEP/DIR interface allows an external controller to manage the direction and step rate of the stepper motor. The device can be configured in different step modes ranging from full-step to 1/16 microstepping. A low-power sleep mode is provided for very low standby quiescent standby current using a dedicated nSLEEP pin.

Device protection features are provided for supply undervoltage, charge pump faults, overcurrent, short circuits, and overtemperature. Fault conditions are indicated by the nFAULT pin.
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Documentación técnica

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Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos DRV8886AT 2-A Stepper Motor Driver With Integrated Current Sense and Smart Tune Technology datasheet (Rev. C) PDF | HTML 11/03/2020
Application brief Advantages of Integrated Current Sensing (Rev. B) PDF | HTML 20/06/2022
Nota sobre la aplicación Best Practices for Board Layout of Motor Drivers (Rev. B) PDF | HTML 14/10/2021
Informe How smart tune regulates current in stepper motors (Rev. A) 19/03/2019
Application brief Smart Tuning for Efficient Stepper Driving 20/11/2018
Artículo técnico Getting smart about tuning your stepper motor PDF | HTML 23/08/2018
Nota sobre la aplicación PowerPAD™ Thermally Enhanced Package (Rev. H) 6/07/2018
Application brief PowerPAD™ Made Easy (Rev. B) 12/05/2004

Diseño y desarrollo

Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.

Placa de evaluación

DRV8886ATEVM — Controlador de motor de paso de 2.0 A con módulo de evaluación de resistencia de detección integrada

El módulo de evaluación (EVM) DRV8886AT demuestra las capacidades de detección de corriente integrada y el rendimiento del circuito integrado DRV8886AT de Texas Instruments. El EVM incluye el DRV8886AT para controlar un motor paso a paso, un MSP430F2617 para controlar las entradas del DRV8886AT y (...)
Guía del usuario: PDF
Productos y hardware compatibles
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Soporte de software

SLVC682 — DRV8886ATEVM Firmware and GUI

Productos y hardware compatibles
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
WQFN (RHR) 28 Ultra Librarian
HTSSOP (PWP) 24 Ultra Librarian
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Pedidos y calidad

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Soporte y capacitación

Foros de TI E2E™ con asistencia técnica de los ingenieros de TI

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