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步進馬達驅動器

DRV8818

現行

具電流調節與 1/8 微步進的 35-V、2.5-A 雙極步進馬達驅動器

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產品規格表

DRV8818

現行
產品規格表 立即訂購

產品詳細資料

Vs ABS (max) (V) 35 Vs (min) (V) 8 Peak output current (A) 3.5 Control mode STEP/DIR Control interface Hardware (GPIO) Number of full bridges 2 Full-scale current (A) 2.5 RDS(ON) (HS + LS) (mΩ) 370 Sleep current (µA) 3 Microstepping levels 8 Decay mode Mixed Features Current Regulation Rating Catalog Operating temperature range (°C) -40 to 85
Vs ABS (max) (V) 35 Vs (min) (V) 8 Peak output current (A) 3.5 Control mode STEP/DIR Control interface Hardware (GPIO) Number of full bridges 2 Full-scale current (A) 2.5 RDS(ON) (HS + LS) (mΩ) 370 Sleep current (µA) 3 Microstepping levels 8 Decay mode Mixed Features Current Regulation Rating Catalog Operating temperature range (°C) -40 to 85
HTSSOP (PWP) 28 62.08 mm² (9.7 mm × 6.4 mm)
  • Stepper motor driver
    • STEP/DIR Interface
    • Built-in microstepping indexer up to 1/8 microstep
    • Programmable mixed decay, blanking, and off time
  • 8V to 35V operating supply voltage range
  • Low 370mΩ (HS + LS) MOSFET RDS(ON) (25°C)
  • Up to 2.5A current per winding
  • Separate logic supply voltage (VCC)
  • HTSSOP-28 pin-to-pin compatible with
  • Thermally-enhanced surface mount package
  • Protection features
    • VM undervoltage lockout (UVLO)
    • Overcurrent protection (OCP)
    • Thermal shutdown (TSD)
  • Stepper motor driver
    • STEP/DIR Interface
    • Built-in microstepping indexer up to 1/8 microstep
    • Programmable mixed decay, blanking, and off time
  • 8V to 35V operating supply voltage range
  • Low 370mΩ (HS + LS) MOSFET RDS(ON) (25°C)
  • Up to 2.5A current per winding
  • Separate logic supply voltage (VCC)
  • HTSSOP-28 pin-to-pin compatible with
  • 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 for printers, scanners, and other automated equipment applications such as textile machines. 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 overcurrent protection, short-circuit protection, undervoltage lockout and overtemperature.

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

The DRV8818 provides an integrated stepper motor driver for printers, scanners, and other automated equipment applications such as textile machines. 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 overcurrent protection, short-circuit protection, undervoltage lockout and overtemperature.

The DRV8818 is packaged in a 28-pin HTSSOP package with PowerPAD™ integrated circuit package.
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重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 DRV8818 35V, 2.5A Stepper Motor Driver With 1/8 Microstepping, STEP/DIR Interface datasheet (Rev. G) PDF | HTML 2025/11/12
應用說明 How to Reduce Power Consumption in Stepper Motor Drivers Using Holding Torque PDF | HTML 2024/8/16
應用說明 Understanding Motor Driver Current Ratings (Rev. A) PDF | HTML 2024/7/5
應用說明 Best Practices for Board Layout of Motor Drivers (Rev. B) PDF | HTML 2021/10/14
應用說明 Calculating Power Dissipation for a H-Bridge or Half Bridge Driver (Rev. A) PDF | HTML 2021/7/22
應用說明 Current Recirculation and Decay Modes (Rev. A) PDF | HTML 2021/4/20
應用說明 Intelligent Stepper Motor Driver (Rev. B) PDF | HTML 2021/1/20
應用說明 Methods to Configure Current Regulation for Brushed and Stepper Motors (Rev. B) PDF | HTML 2021/1/19
應用說明 High Resolution Microstepping Driver With the DRV88xx Series (Rev. A) PDF | HTML 2020/12/21
應用說明 PowerPAD™ Thermally Enhanced Package (Rev. H) 2018/7/6
更多文件說明 TM4C123x Stepper Motor Control Product Summary 2015/7/6
類比設計期刊 Applying acceleration and deceleration profiles to bipolar stepper motors 2012/7/17
Application brief PowerPAD™ Made Easy (Rev. B) 2004/5/12

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開發板

DRV8818EVM — DRV8818 評估模組

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 (...)

使用指南: PDF
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SLVC415 — DRV8818 Software

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HTSSOP (PWP) 28 Ultra Librarian
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