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步進馬達驅動器

DRV8884

現行

具有電流穩壓與 1/16 微步進的 37-V、1-A 雙極步進馬達驅動器  

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產品規格表

DRV8884

現行
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產品詳細資料

Vs ABS (max) (V) 40 Vs (min) (V) 8 Peak output current (A) 1.7 Control mode STEP/DIR Control interface Hardware (GPIO) Number of full bridges 2 Full-scale current (A) 1 RDS(ON) (HS + LS) (mΩ) 1400 Sleep current (µA) 3 Microstepping levels 16 Decay mode Mixed, Slow Rating Catalog Operating temperature range (°C) -40 to 125
Vs ABS (max) (V) 40 Vs (min) (V) 8 Peak output current (A) 1.7 Control mode STEP/DIR Control interface Hardware (GPIO) Number of full bridges 2 Full-scale current (A) 1 RDS(ON) (HS + LS) (mΩ) 1400 Sleep current (µA) 3 Microstepping levels 16 Decay mode Mixed, Slow Rating Catalog Operating temperature range (°C) -40 to 125
HTSSOP (PWP) 24 49.92 mm² (7.8 mm × 6.4 mm) WQFN (RHR) 28 19.25 mm² (5.5 mm × 3.5 mm)
  • PWM microstepping stepper motor driver
    • Up to 1/16 microstepping
    • Non-circular and standard ½ step modes
  • Integrated current sense functionality
    • No sense resistors required
    • ±6.25% Full-scale current accuracy
  • Slow and mixed decay options
  • 8.0- to 37-V Operating supply voltage range
  • Low RDS(ON): 1.4 Ω HS + LS at 24 V, 25°C
  • High current capacity
    • 1.0-A Full scale per bridge
    • 0.7-A rms per bridge
  • Fixed off-time PWM chopping
  • Simple STEP/DIR interface
  • Low-current sleep mode (20 µA)
  • Small package and footprint
    • 24 HTSSOP PowerPAD™ package
    • 28 WQFN package
  • Protection features
    • VM undervoltage lockout (UVLO)
    • Charge pump undervoltage (CPUV)
    • Overcurrent protection (OCP)
    • Thermal shutdown (TSD)
    • Fault condition indication pin (nFAULT)
  • PWM microstepping stepper motor driver
    • Up to 1/16 microstepping
    • Non-circular and standard ½ step modes
  • Integrated current sense functionality
    • No sense resistors required
    • ±6.25% Full-scale current accuracy
  • Slow and mixed decay options
  • 8.0- to 37-V Operating supply voltage range
  • Low RDS(ON): 1.4 Ω HS + LS at 24 V, 25°C
  • High current capacity
    • 1.0-A Full scale per bridge
    • 0.7-A rms per bridge
  • Fixed off-time PWM chopping
  • Simple STEP/DIR interface
  • Low-current sleep mode (20 µA)
  • Small package and footprint
    • 24 HTSSOP PowerPAD™ package
    • 28 WQFN package
  • Protection features
    • VM undervoltage lockout (UVLO)
    • Charge pump undervoltage (CPUV)
    • Overcurrent protection (OCP)
    • Thermal shutdown (TSD)
    • Fault condition indication pin (nFAULT)

The DRV8884 device is a stepper motor driver for industrial equipment applications. The device has two N-channel power MOSFET H-bridge drivers, a microstepping indexer, and integrated current sense. The DRV8884 is capable of driving up to 1.0-A full scale or 0.7-A rms output current (depending on proper PCB ground plane for thermal dissipation and at 24 V and TA = 25°C).

The DRV8884 integrated current sense functionality eliminates the need for two external sense resistors.

The STEP/DIR pins provide a simple control interface. The device can be configured in full-step up to 1/16 step modes. A low-power sleep mode is provided for very-low quiescent current standby using a dedicated nSLEEP pin.

Internal protection functions are provided for undervoltage, charge pump faults, overcurrent, short circuits, and overtemperature. Fault conditions are indicated by an nFAULT pin.

The DRV8884 device is a stepper motor driver for industrial equipment applications. The device has two N-channel power MOSFET H-bridge drivers, a microstepping indexer, and integrated current sense. The DRV8884 is capable of driving up to 1.0-A full scale or 0.7-A rms output current (depending on proper PCB ground plane for thermal dissipation and at 24 V and TA = 25°C).

The DRV8884 integrated current sense functionality eliminates the need for two external sense resistors.

The STEP/DIR pins provide a simple control interface. The device can be configured in full-step up to 1/16 step modes. A low-power sleep mode is provided for very-low quiescent current standby using a dedicated nSLEEP pin.

Internal protection functions are provided for undervoltage, charge pump faults, overcurrent, short circuits, and overtemperature. Fault conditions are indicated by an 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 DRV8884 1.0-A Stepper Motor Driver With Integrated Current Sense datasheet (Rev. E) PDF | HTML 2020/3/11
Application brief Advantages of Integrated Current Sensing (Rev. B) PDF | HTML 2022/6/20
應用說明 Best Practices for Board Layout of Motor Drivers (Rev. B) PDF | HTML 2021/10/14
應用說明 PowerPAD™ Thermally Enhanced Package (Rev. H) 2018/7/6
Application brief PowerPAD™ Made Easy (Rev. B) 2004/5/12

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開發板

DRV8884EVM — 具有整合感測電阻的 DRV8884 1.0A 步進馬達驅動器評估模組

DRV8884 評估模組 (EVM) 展示了德州儀器 DRV8884 積體電路的整合式電流感測功能和性能。EVM 包括控制步進馬達的 DRV8885、控制 DRV8884 輸入的 MSP430F2617 以及用於 GUI 和 MSP430F2617 之間通訊的 USB 轉 UART。
使用指南: PDF
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HTSSOP (PWP) 24 Ultra Librarian
WQFN (RHR) 28 Ultra Librarian
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