產品詳細資料

Number of full bridges 2 Vs (min) (V) 8 Vs ABS (max) (V) 40 Full-scale current (A) 2 Peak output current (A) 3 RDS(ON) (HS + LS) (mΩ) 550 Sleep current (µA) 20 Control mode STEP/DIR Control interface Hardware (GPIO) Microstepping levels 16 Features Integrated Current Sensing, Smart Tune Rating Catalog Operating temperature range (°C) -40 to 125
Number of full bridges 2 Vs (min) (V) 8 Vs ABS (max) (V) 40 Full-scale current (A) 2 Peak output current (A) 3 RDS(ON) (HS + LS) (mΩ) 550 Sleep current (µA) 20 Control mode STEP/DIR Control interface Hardware (GPIO) Microstepping levels 16 Features Integrated Current Sensing, Smart Tune Rating Catalog Operating temperature range (°C) -40 to 125
HTSSOP (PWP) 24 49.92 mm² 7.8 x 6.4 WQFN (RHR) 28 19.25 mm² 5.5 x 3.5
  • 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
  • Smart tune adaptive decay technology,
    slow, and mixed decay options
  • 8 to 37-V Operating supply voltage range
  • Low RDS(ON): 550 mΩ HS + LS at 24 V, 25°C
  • High current capacity
    • 3-A Peak per bridge
    • 2-A Full-scale per bridge
    • 1.4-A rms per bridge
  • Dynamic and fixed off-time PWM current regulation
  • 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
  • Smart tune adaptive decay technology,
    slow, and mixed decay options
  • 8 to 37-V Operating supply voltage range
  • Low RDS(ON): 550 mΩ HS + LS at 24 V, 25°C
  • High current capacity
    • 3-A Peak per bridge
    • 2-A Full-scale per bridge
    • 1.4-A rms per bridge
  • Dynamic and fixed off-time PWM current regulation
  • 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 DRV8886AT is a stepper motor driver for industrial and consumer end equipment applications. The device is fully integrated with two N-channel power MOSFET H-bridge drivers, a microstepping indexer, and integrated current sensing. The DRV8886AT is capable of driving up to 2-A full scale or 1.4-A rms output current (24-V and TA = 25°C, dependent on PCB design).

The DRV8886AT uses an internal current sense architecture to eliminate the need for two external power sense resistors saving PCB area and system cost. The DRV8886AT uses an internal PWM current regulation scheme adjustable between smart tune adaptive decay technology, slow, and mixed decay options. Smart tune adaptive decay technology automatically adjusts for optimal current regulation performance and compensates for motor variation and aging effects.

A simple STEP/DIR interface allows an external controller to manage the direction and step rate of the stepper motor. The device can be configured in different step modes ranging from full-step to 1/16 microstepping. A low-power sleep mode is provided for very low standby quiescent standby current using a dedicated nSLEEP pin.

Device protection features are provided for supply undervoltage, charge pump faults, overcurrent, short circuits, and overtemperature. Fault conditions are indicated by the nFAULT pin.

The DRV8886AT is a stepper motor driver for industrial and consumer end equipment applications. The device is fully integrated with two N-channel power MOSFET H-bridge drivers, a microstepping indexer, and integrated current sensing. The DRV8886AT is capable of driving up to 2-A full scale or 1.4-A rms output current (24-V and TA = 25°C, dependent on PCB design).

The DRV8886AT uses an internal current sense architecture to eliminate the need for two external power sense resistors saving PCB area and system cost. The DRV8886AT uses an internal PWM current regulation scheme adjustable between smart tune adaptive decay technology, slow, and mixed decay options. Smart tune adaptive decay technology automatically adjusts for optimal current regulation performance and compensates for motor variation and aging effects.

A simple STEP/DIR interface allows an external controller to manage the direction and step rate of the stepper motor. The device can be configured in different step modes ranging from full-step to 1/16 microstepping. A low-power sleep mode is provided for very low standby quiescent standby current using a dedicated nSLEEP pin.

Device protection features are provided for supply undervoltage, charge pump faults, overcurrent, short circuits, and overtemperature. Fault conditions are indicated by the nFAULT pin.

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類型 標題 日期
* Data sheet DRV8886AT 2-A Stepper Motor Driver With Integrated Current Sense and Smart Tune Technology datasheet (Rev. C) PDF | HTML 2020年 3月 11日
Application brief Advantages of Integrated Current Sensing (Rev. B) PDF | HTML 2022年 6月 20日
Application note Best Practices for Board Layout of Motor Drivers (Rev. B) PDF | HTML 2021年 10月 14日
EVM User's guide DRV8886AT Evaluation Module User's Guide (Rev. A) 2019年 9月 10日
White paper How smart tune regulates current in stepper motors (Rev. A) 2019年 3月 19日
Application brief Smart Tuning for Efficient Stepper Driving 2018年 11月 20日
Technical article Getting smart about tuning your stepper motor PDF | HTML 2018年 8月 23日
Application note PowerPAD™ Thermally Enhanced Package (Rev. H) 2018年 7月 6日
Application brief PowerPAD™ Made Easy (Rev. B) 2004年 5月 12日

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DRV8886ATEVM — 具有整合感測電阻的 DRV8886AT 2.0A 步進馬達驅動器評估模組

The DRV8886AT evaluation module (EVM) demonstrates the integrated current sensing capabilities and performance of the DRV8886AT integrated circuit from Texas Instruments. The EVM includes the DRV8886AT to control a stepper motor, a MSP430F2617 to control the DRV8886AT inputs, and a USB to UART to (...)
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SLVC682 DRV8886ATEVM Firmware and GUI

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DRV8886AT 具有整合式電流感測和智慧調整技術的 37-V、2-A 雙極步進馬達驅動器
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DRV8886ATEVM 具有整合感測電阻的 DRV8886AT 2.0A 步進馬達驅動器評估模組
封裝 針腳 CAD 符號、佔位空間與 3D 模型
HTSSOP (PWP) 24 Ultra Librarian
WQFN (RHR) 28 Ultra Librarian

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