產品詳情

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 Decay mode Mixed 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 Decay mode Mixed 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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技術文檔

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類型 標題 下載最新的英語版本 日期
* 數據表 DRV8834 Dual-Bridge Stepper or DC Motor Driver 數據表 (Rev. D) PDF | HTML 2015年 3月 26日
應用手冊 了解電機驅動器電流額定值 (Rev. A) PDF | HTML 英語版 (Rev.A) PDF | HTML 2024年 8月 6日
應用手冊 有刷電機和步進電機電流調節的配置方法 (Rev. B) 英語版 (Rev.B) PDF | HTML 2021年 11月 29日
應用手冊 電機驅動器電路板布局的最佳實踐 (Rev. B) PDF | HTML 英語版 (Rev.B) PDF | HTML 2021年 8月 5日
應用手冊 Calculating Power Dissipation for a H-Bridge or Half Bridge Driver (Rev. A) PDF | HTML 2021年 7月 22日
應用手冊 PowerPAD? Thermally Enhanced Package (Rev. H) 2018年 7月 6日
EVM 用戶指南 DRV8834 EVM GUI (Rev. B) 2017年 4月 26日
更多文獻資料 TM4C123x Stepper Motor Control Product Summary 2015年 7月 6日
更多文獻資料 電機驅動與控制解決方案指南 (Rev. D) 2012年 5月 30日
應用手冊 所選封裝材料的熱學和電學性質 2008年 10月 16日
應用簡報 PowerPAD? 輕松實現 (Rev. B) 2004年 5月 12日

設計和開發

如需其他信息或資源，請點擊以下任一標題進入詳情頁面查看（如有）。

評估板

DRV8834EVM — DRV8834 評估模塊

DRV8834 評估模塊 (EVM) 展示了來自德州儀器 (TI) 的 DRV8834 電機驅動器的功能和性能。該 EVM 附帶板載 MSP430 微控制器，該微控制器已使用一組有用的算法進行預編程，用于驅動一個步進電機或兩個刷式直流電機。使用圖形用戶界面，可以通過用戶的計算機經由 USB 端口控制 EVM。MSP430 的調節電壓由 LP2985-33 單通道 LDO 提供。此 EVM 可在 2.5V 至 10.8V 的電源電壓下工作。

用戶指南: PDF
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支持軟件

SLVC421 — DRV8834 Software

支持的產品和硬件

支持的產品和硬件

產品
步進電機驅動器
DRV8834 — 具有 1/32 微步進分度器的 11V、1.5A、雙路 H 橋或步進電機驅動器
硬件開發
評估板
DRV8834EVM — DRV8834 評估模塊
仿真模型

DRV8834 IBIS Model

SLVM656.ZIP (57 KB) - IBIS Model
下載
封裝 引腳 CAD 符號、封裝和 3D 模型
HTSSOP (PWP) 24 Ultra Librarian
VQFN (RGE) 24 Ultra Librarian

訂購和質量

包含信息：
  • RoHS
  • REACH
  • 器件標識
  • 引腳鍍層/焊球材料
  • MSL 等級/回流焊峰值溫度
  • MTBF/時基故障估算
  • 材料成分
  • 鑒定摘要
  • 持續可靠性監測
包含信息：
  • 制造廠地點
  • 封裝廠地點

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