DRV8834
- Dual-H-Bridge Current-Control Motor Driver
- Capable of Driving Two DC Motors or One
Stepper Motor
- Capable of Driving Two DC Motors or One
- 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
- Built-In Indexer Logic With Simple
- 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).
技术文档
| 顶层文档 | 类型 | 标题 | 格式选项 | 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 | 2015-3-26 | ||
| 应用手册 | 了解电机驱动器电流额定值 (Rev. A) | PDF | HTML | 英语版 (Rev.A) | PDF | HTML | 2024-8-6 | |
| 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 | 2021-11-29 | ||
| 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 | 2021-8-5 | |
| 应用手册 | Calculating Power Dissipation for a H-Bridge or Half Bridge Driver (Rev. A) | PDF | HTML | 2021-7-22 | |||
| 应用手册 | PowerPAD™ Thermally Enhanced Package (Rev. H) | 2018-7-6 | ||||
| 更多文献资料 | TM4C123x Stepper Motor Control Product Summary | 2015-7-6 | ||||
| 应用简报 | PowerPAD® 轻松实现 (Rev. B) | 2004-5-12 |
设计与开发
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）。
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。
SLVC421 — DRV8834 Software
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| VQFN (RGE) | 24 | Ultra Librarian |
| HTSSOP (PWP) | 24 | Ultra Librarian |
订购和质量
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