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全新 DRV8845 正在供货 采用智能调优技术的 35V、1.5A 四路 H 桥电机驱动器 Newer device with a wider voltage range, lower sleep current, smart tune and industry common footprint

产品详情

Number of full bridges 4 Vs (min) (V) 8 Vs ABS (max) (V) 34 Full-scale current (A) 1.5 Peak output current (A) 1.5 RDS(ON) (HS + LS) (mΩ) 550 Sleep current (µA) 20 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 4 Vs (min) (V) 8 Vs ABS (max) (V) 34 Full-scale current (A) 1.5 Peak output current (A) 1.5 RDS(ON) (HS + LS) (mΩ) 550 Sleep current (µA) 20 Control mode STEP/DIR Control interface Hardware (GPIO) Microstepping levels 8 Features Current Regulation Rating Catalog Operating temperature range (°C) -40 to 85
HTSSOP (DCA) 48 101.25 mm² 12.5 x 8.1
  • Dual PWM Microstepping Motor Driver
    • Built-In Microstepping Indexers
    • Up to 1.5-A Current Per Winding
    • Three-Bit Winding Current Control
      Allows up to Eight Current Levels
    • Low MOSFET On-Resistance
    • Selectable Slow or Mixed Decay Modes
  • 8-V to 32-V Operating Supply Voltage Range
  • Internal Charge Pump for Gate Drive
  • Built-in 3.3-V Reference
  • Simple Step/Direction Interface
  • Fully Protected Against Undervoltage,
    Overtemperature, and Overcurrent
  • Thermally-Enhanced Surface Mount Package
  • Dual PWM Microstepping Motor Driver
    • Built-In Microstepping Indexers
    • Up to 1.5-A Current Per Winding
    • Three-Bit Winding Current Control
      Allows up to Eight Current Levels
    • Low MOSFET On-Resistance
    • Selectable Slow or Mixed Decay Modes
  • 8-V to 32-V Operating Supply Voltage Range
  • Internal Charge Pump for Gate Drive
  • Built-in 3.3-V Reference
  • Simple Step/Direction Interface
  • Fully Protected Against Undervoltage,
    Overtemperature, and Overcurrent
  • Thermally-Enhanced Surface Mount Package

The DRV8821 provides a dual microstepping-capable stepper motor controller/driver solution for printers, scanners, and other office automation equipment applications.

Two independent stepper motor driver circuits include four H-bridge drivers and microstepping-capable indexer logic. Each of the motor driver blocks employ N-channel power MOSFETs configured as an H-bridge to drive the motor windings.

A simple step/direction interface allows easy interfacing to controller circuits. Pins allow configuration of the motor in full-step, half-step, quarter-step, or eighth step modes, and the selection of slow or mixed decay modes.

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

The DRV8821 is packaged in a 48-pin HTSSOP package (Eco-friendly : RoHS & no Sb/Br).

The DRV8821 provides a dual microstepping-capable stepper motor controller/driver solution for printers, scanners, and other office automation equipment applications.

Two independent stepper motor driver circuits include four H-bridge drivers and microstepping-capable indexer logic. Each of the motor driver blocks employ N-channel power MOSFETs configured as an H-bridge to drive the motor windings.

A simple step/direction interface allows easy interfacing to controller circuits. Pins allow configuration of the motor in full-step, half-step, quarter-step, or eighth step modes, and the selection of slow or mixed decay modes.

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

The DRV8821 is packaged in a 48-pin HTSSOP package (Eco-friendly : RoHS & no Sb/Br).

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技术文档

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类型 标题 下载最新的英语版本 日期
* 数据表 DRV8821 Dual Stepper Motor Controller and Driver 数据表 (Rev. J) PDF | HTML 2016年 1月 6日
应用手册 有刷电机和步进电机电流调节的配置方法 (Rev. B) 英语版 (Rev.B) PDF | HTML 2021年 11月 29日
应用手册 电流再循环和衰减模式 (Rev. A) 英语版 (Rev.A) PDF | HTML 2021年 10月 25日
应用手册 智能步进电机驱动器控制 (Rev. B) 英语版 (Rev.B) PDF | HTML 2021年 8月 16日
应用手册 电机驱动器电路板布局的最佳实践 (Rev. B) PDF | HTML 英语版 (Rev.B) PDF | HTML 2021年 8月 5日
应用手册 Calculating Power Dissipation for a H-Bridge or Half Bridge Driver (Rev. A) PDF | HTML 2021年 7月 22日
应用手册 PowerPAD™ Thermally Enhanced Package (Rev. H) 2018年 7月 6日
用户指南 DRV8821-23 EVM GUI (Rev. A) 2017年 4月 26日
更多文献资料 TM4C123x Stepper Motor Control Product Summary 2015年 7月 6日
应用手册 Understanding Motor Driver Current Ratings 2012年 2月 6日
应用手册 所选封装材料的热学和电学性质 2008年 10月 16日
应用简报 PowerPAD® 轻松实现 (Rev. B) 2004年 5月 12日

设计和开发

如需其他信息或资源,请点击以下任一标题进入详情页面查看(如有)。

评估板

DRV8821EVM — DRV8821 评估模块

DRV8821 是一款双路步进电机控制器评估模块,它包含器件、布线和软件,可简化对用于驱动客户电机的器件的评估过程。

用户指南: PDF
TI.com 上无现货
封装 引脚 下载
HTSSOP (DCA) 48 查看选项

订购和质量

包含信息:
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
包含信息:
  • 制造厂地点
  • 封装厂地点

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