Detalles del producto

Number of full bridges 2 Vs (min) (V) 8 Vs ABS (max) (V) 35 Full-scale current (A) 2.5 Peak output current (A) 3.5 RDS(ON) (HS + LS) (mΩ) 370 Sleep current (µA) 3 Control mode STEP/DIR Control interface Hardware (GPIO) Microstepping levels 8 Features Current Regulation Rating Catalog Operating temperature range (°C) -40 to 85
Number of full bridges 2 Vs (min) (V) 8 Vs ABS (max) (V) 35 Full-scale current (A) 2.5 Peak output current (A) 3.5 RDS(ON) (HS + LS) (mΩ) 370 Sleep current (µA) 3 Control mode STEP/DIR Control interface Hardware (GPIO) Microstepping levels 8 Features Current Regulation Rating Catalog Operating temperature range (°C) -40 to 85
HTSSOP (PWP) 28 62.08 mm² 9.7 x 6.4
  • Pulse Width Modulation (PWM) Microstepping Motor Driver
    • Built-In Microstepping Indexer
    • Up to 8 Microsteps/Step
    • Step and Direction Control
    • Programmable Mixed Decay, Blanking, and Off Time
  • Up to 2.5-A Current Per Winding
  • Low 0.37-Ω (HS + LS) MOSFET RDS(ON) (25°C)
  • 8-V to 35-V Operating Supply Voltage Range
  • Pin to Pin Upgrade for DRV8811 With Lower RDS(ON)
  • Thermally-Enhanced Surface Mount Package
  • Protection Features
    • VM Undervoltage Lockout (UVLO)
    • Overcurrent Protection (OCP)
    • Thermal Shutdown (TSD)
  • Pulse Width Modulation (PWM) Microstepping Motor Driver
    • Built-In Microstepping Indexer
    • Up to 8 Microsteps/Step
    • Step and Direction Control
    • Programmable Mixed Decay, Blanking, and Off Time
  • Up to 2.5-A Current Per Winding
  • Low 0.37-Ω (HS + LS) MOSFET RDS(ON) (25°C)
  • 8-V to 35-V Operating Supply Voltage Range
  • Pin to Pin Upgrade for DRV8811 With Lower RDS(ON)
  • Thermally-Enhanced Surface Mount Package
  • Protection Features
    • VM Undervoltage Lockout (UVLO)
    • Overcurrent Protection (OCP)
    • Thermal Shutdown (TSD)

The DRV8818 provides an integrated stepper motor driver solution for printers, scanners, and other automated equipment applications. The device has two H-bridge drivers, as well as microstepping indexer logic to control a stepper motor.

The output driver block for each consists of N-channel power MOSFETs configured as full H-bridges to drive the motor windings.

A simple STEP/DIRECTION interface allows easy interfacing to controller circuits. The mode pins allow for configuration of the motor in full-step, half-step, quarter-step, or eighth-step modes. Decay mode and PWM off time are programmable.

Internal shutdown functions are provided for over current protection, short circuit protection, under-voltage lockout and overtemperature.

The DRV8818 is packaged in a 28-pin HTSSOP package with PowerPAD.

The DRV8818 provides an integrated stepper motor driver solution for printers, scanners, and other automated equipment applications. The device has two H-bridge drivers, as well as microstepping indexer logic to control a stepper motor.

The output driver block for each consists of N-channel power MOSFETs configured as full H-bridges to drive the motor windings.

A simple STEP/DIRECTION interface allows easy interfacing to controller circuits. The mode pins allow for configuration of the motor in full-step, half-step, quarter-step, or eighth-step modes. Decay mode and PWM off time are programmable.

Internal shutdown functions are provided for over current protection, short circuit protection, under-voltage lockout and overtemperature.

The DRV8818 is packaged in a 28-pin HTSSOP package with PowerPAD.

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Documentación técnica

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* Data sheet DRV8818 Stepper Motor Controller IC datasheet (Rev. E) PDF | HTML 19 ene 2016
Application note Best Practices for Board Layout of Motor Drivers (Rev. B) PDF | HTML 14 oct 2021
Application note Calculating Power Dissipation for a H-Bridge or Half Bridge Driver (Rev. A) PDF | HTML 22 jul 2021
Application note Current Recirculation and Decay Modes (Rev. A) PDF | HTML 20 abr 2021
Application note Intelligent Stepper Motor Driver (Rev. B) PDF | HTML 20 ene 2021
Application note Methods to Configure Current Regulation for Brushed and Stepper Motors (Rev. B) PDF | HTML 19 ene 2021
Application note High Resolution Microstepping Driver With the DRV88xx Series (Rev. A) PDF | HTML 21 dic 2020
Application note PowerPAD™ Thermally Enhanced Package (Rev. H) 06 jul 2018
EVM User's guide DRV8818 EVM GUI (Rev. A) 27 abr 2017
More literature TM4C123x Stepper Motor Control Product Summary 06 jul 2015
Analog Design Journal Applying acceleration and deceleration profiles to bipolar stepper motors 17 jul 2012
Application note Understanding Motor Driver Current Ratings 06 feb 2012
Application brief PowerPAD™ Made Easy (Rev. B) 12 may 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

DRV8818EVM — Módulo de evaluación DRV8818

The DRV8818 evaluation module (EVM) demonstrates the capabilities and performance of the DRV8818 integrated micro-stepping motor driver from Texas Instruments. This EVM comes with an on-board MSP430 microprocessor which has been pre-programmed for standalone operation. The regulated voltage for the (...)

Guía del usuario: PDF
Soporte de software

SLVC415 DRV8818 Software

Productos y hardware compatibles

Productos y hardware compatibles

Productos
Drivers para motores paso a paso
DRV8818 Controlador de motor bipolar de paso de 35 V y 2.5 A con regulación de corriente y micropasos 1/8
Desarrollo de hardware
Placa de evaluación
DRV8818EVM Módulo de evaluación DRV8818
Esquema

Hardware: DRV8818EVM

SLVC588.ZIP (1447 KB)
Paquete Pasadores Descargar
HTSSOP (PWP) 28 Ver opciones

Pedidos y calidad

Información incluida:
  • RoHS
  • REACH
  • Marcado del dispositivo
  • Acabado de plomo/material de la bola
  • Clasificación de nivel de sensibilidad a la humedad (MSL) / reflujo máximo
  • Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
  • Contenido del material
  • Resumen de calificaciones
  • Monitoreo continuo de confiabilidad
Información incluida:
  • Lugar de fabricación
  • Lugar de ensamblaje

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Soporte y capacitación

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