DRV8711
- Pulse width modulation (PWM) microstepping motor driver
- Built-In 1/256-Step microstepping indexer
- Drives external N-Channel MOSFETs
- Optional STEP/DIR pins
- Optional PWM control interface for DC motors
- Flexible decay modes, including automatic mixed decay mode
- Stall detection with optional BEMF output
- Highly configurable SPI serial interface
- Internal reference and torque DAC
- 8-V to 52-V Operating supply voltage range
- Scalable output current
- Thermally enhanced surface-mount package
- 5-V Regulator capable of 10-mA load
- Protection and diagnostic features
- Overcurrent protection (OCP)
- Overtemperature shutdown (OTS)
- Undervoltage lockout (UVLO)
- Individual fault condition indication bits
- Fault condition indication pin
The DRV8711 device is a stepper motor controller that uses external N-channel MOSFETs to drive a bipolar stepper motor or two brushed DC motors. A microstepping indexer is integrated, which is capable of step modes from full step to 1/256-step.
An ultra-smooth motion profile can be achieved using adaptive blanking time and various current decay modes, including an auto-mixed decay mode. Motor stall is reported with an optional back-EMF output.
A simple step/direction or PWM interface allows easy interfacing to controller circuits. A SPI serial interface is used to program the device operation. Output current (torque), step mode, decay mode, and stall detection functions are all programmable through a SPI serial interface.
Internal shutdown functions are provided for overcurrent protection, short-circuit protection, undervoltage lockout, and overtemperature. Fault conditions are indicated through a FAULTn pin, and each fault condition is reported through a dedicated bit through SPI.
The DRV8711 is packaged in a PowerPAD™ 38-pin HTSSOP package with thermal pad (Eco-friendly: RoHS and no Sb/Br).
技術文件
| 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 | DRV8711 Stepper Motor Controller IC datasheet (Rev. H) | PDF | HTML | 2020/4/22 | ||
| 應用說明 | Best Practices for Board Layout of Motor Drivers (Rev. B) | PDF | HTML | 2021/10/14 | |||
| 應用說明 | Understanding Smart Gate Drive (Rev. D) | 2021/3/1 | ||||
| 應用說明 | PowerPAD™ Thermally Enhanced Package (Rev. H) | 2018/7/6 | ||||
| 技術文章 | New simple open real-time Ethernet (SORTE) protocol supports 4µs cycle time | PDF | HTML | 2016/11/21 | |||
| 更多文件說明 | TM4C123x Stepper Motor Control Product Summary | 2015/7/6 | ||||
| 技術文章 | Simplifying gate driver design for brushed DC motors | PDF | HTML | 2015/6/30 | |||
| 技術文章 | How to spin your stepper motor more efficiently – Part 2 | PDF | HTML | 2015/5/22 | |||
| 技術文章 | How to spin your stepper motor more efficiently, Part 1 | PDF | HTML | 2015/5/7 | |||
| 應用說明 | DRV8711 Decay Mode Setting Optimization | 2014/2/26 | ||||
| Application brief | PowerPAD™ Made Easy (Rev. B) | 2004/5/12 |
設計與開發
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BOOST-DRV8711 — 採用 DRV8711 與 CSD88537ND 的步進馬達 BoosterPack
BOOST-DRV8711 是一款基於 DRV8711 步進馬達預驅動器和 CSD88537ND 雙 N 通道 NexFETTM 功率 MOSFET 的 8-52V、4.5A 雙極步進馬達驅動級。此模組包含驅動多種不同類型雙極步進馬達所需的一切，也可以重新配置為雙有刷 DC 馬達驅動器。BOOST-DRV8711 最適合想要進一步了解步進馬達控制技術和驅動級設計的使用者。此套件的設計與所有 TI LaunchPad 皆相容，且遵循 LaunchPad 針腳配置標準，並為採用 MSP430G2553 的 MSP-EXP430G2 LaunchPad 提供主要軟體/韌體支援。
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The DRV8711 is a stepper motor controller using external N-channel MOSFETs to drive a bipolar stepper motor or two brushed DC motors. A microstepping indexer is integrated, supporting up to 1/256 microstep. The DRV8711 is capable of providing ultra-smooth motion profile, and motor stall can be (...)
SLVC500 — DRV8711 Software
TIDA-00740 — 自動扭矩實作參考設計
TIDA-00740 是一款基於 DRV8711 步進馬達預驅動器和 CSD88537ND 雙 N 通道 NexFET™ 功率 MOSFET 的 8-52V、4.5A 雙極步進馬達驅動級。MSP430G2553 上的韌體用於根據步進馬達產生的反 EMF 自動調節步進馬達電流。
TIDA-00872 — 使用雙極步進馬達控制器的單極步進馬達驅動器參考設計
TIDA-00872 示範如何將 DRV8711 雙極步進馬達閘極驅動器重新配置為單極步進馬達閘極驅動器。PCB 連接至 MSP430G2 LaunchPad，以進行快速評估及調整。PCB 可在 15V 至最高 40V 之間運作，全刻度電流為 5A。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| HTSSOP (DCP) | 38 | Ultra Librarian |
訂購與品質
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。