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步進馬達驅動器

DRV8841

現行

具電流調節和 PWM 控制的 45-V、2.5-A 雙極步進或雙全橋馬達驅動器

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產品規格表

DRV8841

現行
產品規格表 立即訂購

產品詳細資料

Vs ABS (max) (V) 47 Vs (min) (V) 8.2 Peak output current (A) 3 Control mode PWM Control interface Hardware (GPIO) Number of full bridges 2 Full-scale current (A) 2.5 RDS(ON) (HS + LS) (mΩ) 400 Sleep current (µA) 10 Microstepping levels 4 Features Current Regulation Rating Catalog Operating temperature range (°C) -40 to 85
Vs ABS (max) (V) 47 Vs (min) (V) 8.2 Peak output current (A) 3 Control mode PWM Control interface Hardware (GPIO) Number of full bridges 2 Full-scale current (A) 2.5 RDS(ON) (HS + LS) (mΩ) 400 Sleep current (µA) 10 Microstepping levels 4 Features Current Regulation Rating Catalog Operating temperature range (°C) -40 to 85
HTSSOP (PWP) 28 62.08 mm² (9.7 mm × 6.4 mm)
  • Dual H-Bridge DC Motor Driver
    • Single and Dual Brushed DC
    • Stepper
  • PWM Control Interface
  • Optional Fixed Frequency Current Regulation
    • Two Bit Current Control Allows Up to Four
      Current Levels
  • Low MOSFET On-Resistance
    • 2.5-A Maximum Drive Current at 24 V and
      TA = 25°C
    • Combined 400 mΩ RDS(ON) of High-Side
      and Low-Side at 24 V and TA = 25°C
  • 8.2-V to 45-V Operating Supply Voltage Range
  • Low Current Sleep Mode
  • Built-In 3.3-V Reference Output
  • Thermally Enhanced Surface Mount Package
  • Protection Features
    • Overcurrent Protection (OCP)
    • Thermal Shutdown (TSD)
    • Undervoltage Lockout (UVLO)
    • Fault Condition Indication Pin (nFAULT)
  • Dual H-Bridge DC Motor Driver
    • Single and Dual Brushed DC
    • Stepper
  • PWM Control Interface
  • Optional Fixed Frequency Current Regulation
    • Two Bit Current Control Allows Up to Four
      Current Levels
  • Low MOSFET On-Resistance
    • 2.5-A Maximum Drive Current at 24 V and
      TA = 25°C
    • Combined 400 mΩ RDS(ON) of High-Side
      and Low-Side at 24 V and TA = 25°C
  • 8.2-V to 45-V Operating Supply Voltage Range
  • Low Current Sleep Mode
  • Built-In 3.3-V Reference Output
  • Thermally Enhanced Surface Mount Package
  • Protection Features
    • Overcurrent Protection (OCP)
    • Thermal Shutdown (TSD)
    • Undervoltage Lockout (UVLO)
    • Fault Condition Indication Pin (nFAULT)

The DRV8841 provides an integrated dual H-bridge motor driver solution for printers, scanners, and other automated equipment applications. The device can be used to drive one or two brushed DC motors, a bipolar stepper motor, or other loads. A simple PWM interface allows easy interfacing to controller circuits.

The output driver block consists of N-channel power MOSFETs configured as H-bridges. The DRV8841 an supply up to 2.5-A peak or 1.75-A RMS output current (with proper heat sinking at 24 V and TA = 25°C) per H-bridge.

A low-power sleep mode is provided which shuts down internal circuitry to achieve very low quiescent current draw. This sleep mode can be set using a dedicated nSLEEP pin. Internal protection features are provided for overtemperature, overcurrent, and undervoltage. Fault conditions are indicated by a nFAULT pin.

The DRV8841 provides an integrated dual H-bridge motor driver solution for printers, scanners, and other automated equipment applications. The device can be used to drive one or two brushed DC motors, a bipolar stepper motor, or other loads. A simple PWM interface allows easy interfacing to controller circuits.

The output driver block consists of N-channel power MOSFETs configured as H-bridges. The DRV8841 an supply up to 2.5-A peak or 1.75-A RMS output current (with proper heat sinking at 24 V and TA = 25°C) per H-bridge.

A low-power sleep mode is provided which shuts down internal circuitry to achieve very low quiescent current draw. This sleep mode can be set using a dedicated nSLEEP pin. Internal protection features are provided for overtemperature, overcurrent, and undervoltage. Fault conditions are indicated by a nFAULT pin.
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重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 DRV8841 Dual H-Bridge Driver IC datasheet (Rev. F) PDF | HTML 2015/12/16
應用說明 Understanding Motor Driver Current Ratings (Rev. A) PDF | HTML 2024/7/5
應用說明 Best Practices for Board Layout of Motor Drivers (Rev. B) PDF | HTML 2021/10/14
應用說明 Calculating Power Dissipation for a H-Bridge or Half Bridge Driver (Rev. A) PDF | HTML 2021/7/22
應用說明 Methods to Configure Current Regulation for Brushed and Stepper Motors (Rev. B) PDF | HTML 2021/1/19
應用說明 PowerPAD™ Thermally Enhanced Package (Rev. H) 2018/7/6
更多文件說明 TM4C123x Stepper Motor Control Product Summary 2015/7/6
應用說明 Optimizing High-Level Micro Stepping of the DRV88xx Driver 2014/7/19
Application brief PowerPAD™ Made Easy (Rev. B) 2004/5/12

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開發板

DRV8841EVM — 用於 DRV8841 的評估模組

The DRV8841 evaluation module consists of a 2.5A, dual-H-bridge motor driver with a PWM control interface and a small number external components that can be used to drive either two brushed DC motors, a single bipolar stepper motor, or four solenoids. The on-board MSP430 MCU + software/GUI supports (...)

使用指南: PDF
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SLVC342 — DRV88xx Software

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HTSSOP (PWP) 28 Ultra Librarian
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