產品詳細資料

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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技術文件

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類型 標題 日期
* Data sheet DRV8834 Dual-Bridge Stepper or DC Motor Driver datasheet (Rev. D) PDF | HTML 2015年 3月 26日
Application note Understanding Motor Driver Current Ratings (Rev. A) PDF | HTML 2024年 7月 5日
Application note Best Practices for Board Layout of Motor Drivers (Rev. B) PDF | HTML 2021年 10月 14日
Application note Calculating Power Dissipation for a H-Bridge or Half Bridge Driver (Rev. A) PDF | HTML 2021年 7月 22日
Application note Methods to Configure Current Regulation for Brushed and Stepper Motors (Rev. B) PDF | HTML 2021年 1月 19日
Application note PowerPAD™ Thermally Enhanced Package (Rev. H) 2018年 7月 6日
EVM User's guide DRV8834 EVM GUI (Rev. B) 2017年 4月 26日
More literature TM4C123x Stepper Motor Control Product Summary 2015年 7月 6日
Application brief PowerPAD™ Made Easy (Rev. B) 2004年 5月 12日

設計與開發

如需其他條款或必要資源,請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發板

DRV8834EVM — DRV8834 評估模組

The DRV8834 evaluation module (EVM) demonstrates the capabilities and performance of the DRV8834 motor driver from Texas Instruments. This EVM comes with an on-board MSP430 microcontroller which has been pre-programmed with a set of useful algorithms for driving a stepper or two brushed DC motors. (...)

使用指南: PDF
TI.com 無法提供
支援軟體

SLVC421 DRV8834 Software

支援產品和硬體

支援產品和硬體

產品
步進馬達驅動器
DRV8834 具有 1/32 微型步進索引器的 11-V、1.5-A、雙全橋或步進電機驅動器
硬體開發
開發板
DRV8834EVM DRV8834 評估模組
模擬型號

DRV8834 IBIS Model

SLVM656.ZIP (57 KB) - IBIS Model
封裝 針腳 CAD 符號、佔位空間與 3D 模型
HTSSOP (PWP) 24 Ultra Librarian
VQFN (RGE) 24 Ultra Librarian

訂購與品質

內含資訊:
  • RoHS
  • REACH
  • 產品標記
  • 鉛塗層/球物料
  • MSL 等級/回焊峰值
  • MTBF/FIT 估算值
  • 材料內容
  • 認證摘要
  • 進行中持續性的可靠性監測
內含資訊:
  • 晶圓廠位置
  • 組裝地點

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