DRV8825
- PWM Microstepping Stepper Motor Driver
- Built-In Microstepping Indexer
- Up to 1/32 Microstepping
- Multiple Decay Modes
- Mixed Decay
- Slow Decay
- Fast Decay
- 8.2-V to 45-V Operating Supply Voltage Range
- 2.5-A Maximum Drive Current at 24 V and
TA = 25°C - Simple STEP/DIR Interface
- Low Current Sleep Mode
- Built-In 3.3-V Reference Output
- Small Package and Footprint
- Protection Features
- Overcurrent Protection (OCP)
- Thermal Shutdown (TSD)
- VM Undervoltage Lockout (UVLO)
- Fault Condition Indication Pin (nFAULT)
- APPLICATIONS
- Automatic Teller Machines
- Money Handling Machines
- Video Security Cameras
- Printers
- Scanners
- Office Automation Machines
- Gaming Machines
- Factory Automation
- Robotics
The DRV8825 provides an integrated motor driver solution for printers, scanners, and other automated equipment applications. The device has two H-bridge drivers and a microstepping indexer, and is intended to drive a bipolar stepper motor. The output driver block consists of N-channel power MOSFET’s configured as full H-bridges to drive the motor windings. The DRV8825 is capable of driving up to 2.5 A of current from each output (with proper heat sinking, at 24 V and 25°C).
A simple STEP/DIR interface allows easy interfacing to controller circuits. Mode pins allow for configuration of the motor in full-step up to 1/32-step modes. Decay mode is configurable so that slow decay, fast decay, or mixed decay can be used. 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 shutdown functions are provided for overcurrent, short circuit, under voltage lockout and over temperature. Fault conditions are indicated via the nFAULT pin.
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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 | DRV8825 Stepper Motor Controller IC datasheet (Rev. F) | PDF | HTML | 2014/7/24 | ||
| 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 | Intelligent Stepper Motor Driver (Rev. B) | PDF | HTML | 2021/1/20 | |||
| 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 | ||||
| 類比設計期刊 | Applying acceleration and deceleration profiles to bipolar stepper motors | 2012/7/17 | ||||
| Application brief | PowerPAD™ Made Easy (Rev. B) | 2004/5/12 |
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)。
DRV8825EVM — 用於 DRV8825 的評估模組
The DRV8825 evaluation module consists of a 2.5A, dual-H-bridge motor driver with on chip indexer (step/dir control interface) supporting up to 32 micro steps and a small number external components that can be used to drive a single bipolar stepper motor. The on-board MSP430 MCU + software/GUI (...)
TIDA-00293 — 使用 DLP® 技術的同級最佳組合式立體光刻 3D 印表機開發
此 DLP® 3D 印表機參考設計採用我們的 DLP 3D 結構光軟體開發套件 (SDK)，可讓您建置同級最佳解析度的 3D 物件。高度差異化的 DLP 技術採用立體光刻技術，該技術在高精度與高速 3D 列印中廣受歡迎。此參考設計採用 DLP LightCrafter™ 4500 評估模組 (EVM)，展示 DLP 0.45” WXGA 晶片組，以準確地曝光物件層。此設計也使用我們的低功耗 MSP430 嵌入式處理器，將層曝光透過馬達控制同步化，以實現精確的增量 3D 構建。
TIDM-PRINTERPACK — 適用於 3D 印表機控制的 40 針腳 Boosterpack
此設計為 40 接腳 BoosterPack，整合了 3D 印表機操作的所有必要元件。所有 I/O 接頭位置設置方便，且包含韌體，使開發人員能夠立即開始打造經濟實惠的專屬 3D 印表機。 雖然最初用意是為 3D 印表機控制提供低成本解決方案，但其核心仍配備四個 DRV8825 步進馬達驅動器，讓 BoosterPack 也可在任何需要多個步進馬達的應用中運作。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| HTSSOP (PWP) | 28 | 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。