产品详情

Number of full bridges 2 Vs (min) (V) 2.5 Vs ABS (max) (V) 11.8 Full-scale current (A) 1.5 Peak output current (A) 2 RDS(ON) (HS + LS) (mΩ) 305 Sleep current (µA) 0.6 Control mode PH/EN, STEP/DIR Control interface Hardware (GPIO) Microstepping levels 32 Features Current Regulation Rating Catalog Operating temperature range (°C) -40 to 85
Number of full bridges 2 Vs (min) (V) 2.5 Vs ABS (max) (V) 11.8 Full-scale current (A) 1.5 Peak output current (A) 2 RDS(ON) (HS + LS) (mΩ) 305 Sleep current (µA) 0.6 Control mode PH/EN, STEP/DIR Control interface Hardware (GPIO) Microstepping levels 32 Features Current Regulation Rating Catalog Operating temperature range (°C) -40 to 85
HTSSOP (PWP) 24 49.92 mm² 7.8 x 6.4 VQFN (RGE) 24 16 mm² 4 x 4
  • Dual-H-Bridge Current-Control Motor Driver
    • Capable of Driving Two DC Motors or One
      Stepper Motor
  • Two Control Modes:
    • Built-In Indexer Logic With Simple
      STEP/DIRECTION Control and Up to
      1/32-Step Microstepping
    • PHASE/ENABLE Control, With the Ability to
      Drive External References for > 1/32-Step
      Microstepping
  • Output Current 1.5-A Continuous, 2.2-A Peak per
    H-Bridge (at VM = 5 V, 25°C)
  • Low RDS(ON): 305-mΩ HS + LS
    (at VM = 5 V, 25°C)
  • Wide Power Supply Voltage Range:
    2.5 V to 10.8 V
  • Dynamic tBLANK and Mixed Decay Modes for
    Smooth Microstepping
  • PWM Winding Current Regulation and Limiting
  • Thermally Enhanced Surface-Mount Package
  • Dual-H-Bridge Current-Control Motor Driver
    • Capable of Driving Two DC Motors or One
      Stepper Motor
  • Two Control Modes:
    • Built-In Indexer Logic With Simple
      STEP/DIRECTION Control and Up to
      1/32-Step Microstepping
    • PHASE/ENABLE Control, With the Ability to
      Drive External References for > 1/32-Step
      Microstepping
  • Output Current 1.5-A Continuous, 2.2-A Peak per
    H-Bridge (at VM = 5 V, 25°C)
  • Low RDS(ON): 305-mΩ HS + LS
    (at VM = 5 V, 25°C)
  • Wide Power Supply Voltage Range:
    2.5 V to 10.8 V
  • Dynamic tBLANK and Mixed Decay Modes for
    Smooth Microstepping
  • PWM Winding Current Regulation and Limiting
  • Thermally Enhanced Surface-Mount Package

The DRV8834 provides a flexible motor driver solution for toys, printers, cameras, and other mechatronic applications. The device has two H-bridge drivers, and is intended to drive a bipolar stepper motor or two DC motors.

The output driver block of each H-bridge consists of N-channel power MOSFETs configured as an H-bridge to drive the motor windings. Each H-bridge includes circuitry to regulate or limit the winding current.

With proper PCB design, each H-bridge of the DRV8834 can driving up to 1.5-A RMS (or DC) continuously, at 25°C with a VM supply of 5 V. The device can support peak currents of up to 2.2 A per bridge. Current capability is reduced slightly at lower VM voltages.

Internal shutdown functions with a fault output pin are provided for overcurrent protection, short-circuit protection, undervoltage lockout and overtemperature. A low-power sleep mode is also provided.

The DRV8834 is packaged in a 24-pin HTSSOP or VQFN package with PowerPAD™ (Eco-friendly: RoHS & no Sb/Br).

The DRV8834 provides a flexible motor driver solution for toys, printers, cameras, and other mechatronic applications. The device has two H-bridge drivers, and is intended to drive a bipolar stepper motor or two DC motors.

The output driver block of each H-bridge consists of N-channel power MOSFETs configured as an H-bridge to drive the motor windings. Each H-bridge includes circuitry to regulate or limit the winding current.

With proper PCB design, each H-bridge of the DRV8834 can driving up to 1.5-A RMS (or DC) continuously, at 25°C with a VM supply of 5 V. The device can support peak currents of up to 2.2 A per bridge. Current capability is reduced slightly at lower VM voltages.

Internal shutdown functions with a fault output pin are provided for overcurrent protection, short-circuit protection, undervoltage lockout and overtemperature. A low-power sleep mode is also provided.

The DRV8834 is packaged in a 24-pin HTSSOP or VQFN package with PowerPAD™ (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 DRV8834 Dual-Bridge Stepper or DC Motor Driver 数据表 (Rev. D) PDF | HTML 2015年 3月 26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) 下载英文版本 (Rev.B) PDF | HTML 2021年 11月 29日
应用手册 电机驱动器电路板布局的最佳实践 (Rev. B) PDF | HTML 下载英文版本 (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
EVM 用户指南 DRV8834 EVM GUI (Rev. B) 2017年 4月 26日
更多文献资料 TM4C123x Stepper Motor Control Product Summary 2015年 7月 6日
更多文献资料 电机驱动与控制解决方案指南 (Rev. D) 2012年 5月 30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,请查看下方列表,点击标题即可进入详情页面。

评估板

DRV8834EVM — DRV8834 评估模块

DRV8834 评估模块 (EVM) 展示了来自德州仪器 (TI) 的 DRV8834 电机驱动器的功能和性能。该 EVM 附带板载 MSP430 微控制器,该微控制器已使用一组有用的算法进行预编程,用于驱动一个步进电机或两个刷式直流电机。使用图形用户界面,可以通过用户的计算机经由 USB 端口控制 EVM。MSP430 的调节电压由 LP2985-33 单通道 LDO 提供。此 EVM 可在 2.5V 至 10.8V 的电源电压下工作。

用户指南: PDF
TI.com 上无现货
支持软件

SLVC421 DRV8834 Software

支持的产品和硬件

支持的产品和硬件

产品
步进电机驱动器
DRV8834 具有 1/32 微步进分度器的 11V、1.5A、双路 H 桥或步进电机驱动器
硬件开发
评估板
DRV8834EVM DRV8834 评估模块
仿真模型

DRV8834 IBIS Model

SLVM656.ZIP (57 KB) - IBIS Model
封装 引脚数 下载
HTSSOP (PWP) 24 了解详情
VQFN (RGE) 24 了解详情

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
  • 认证摘要
  • 持续可靠性监测

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支持与培训

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