DRV8812
- 8.2-V to 45-V Operating Supply Voltage Range
- 1.6-A Maximum Drive Current at 24 V and
TA = 25°C - Dual H-Bridge Current Control Motor Driver
- Drive a Bipolar Stepper or Two DC Motors
- Four Level Winding Current Control
- Multiple Decay Modes
- Mixed Decay
- Slow Decay
- Fast Decay
- Industry Standard Parallel Digital Control 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
All other trademarks are the property of their respective owners
The DRV8812 provides an integrated motor driver solution for printers, scanners, and other automated equipment applications. The device has two H-bridge drivers, and can drive a bipolar stepper motor or two DC motors. The output driver block for each consists of N-channel power MOSFET’s configured as full H-bridges to drive the motor windings. The DRV8812 is capable of driving up to 1.6-A of output current (with proper heatsinking, at 24 V and 25°C).
A simple parallel digital control interface is compatible with industry-standard devices. Decay mode is programmable.
Internal shutdown functions are provided for over current protection, short circuit protection, under voltage lockout and overtemperature.
The DRV8812 is available in a 28-pin HTSSOP package with PowerPAD™ and in a 28-pin QFN package PowerPAD™ (Eco-friendly: RoHS & no Sb/Br).
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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 | DRV8812 Dual-Bridge Motor Controller IC datasheet (Rev. G) | PDF | HTML | 2014/10/15 | ||
| 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 | High Resolution Microstepping Driver With the DRV88xx Series (Rev. A) | PDF | HTML | 2020/12/21 | |||
| Application brief | Small Motors in Large Appliances | 2018/7/20 | ||||
| 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 |
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)。
DRV8812EVM — 用於 DRV8812 的評估模組
The DRV8812EVM is a dual bridge motor driver evaluation module that includes device, cabling and software to ease the evaluation of the device when driving a customer's motor.
SLVC342 — DRV88xx Software
TIDA-00297 — 冰箱阻尼器與風扇馬達控制解決方案
冰箱通常會使用阻尼器來控制氣流，並使用風扇來提供循環。 雖然離散式解決方案已使用多年，但此參考設計採用整合式馬達驅動器，可提供簡易控制、高性能與完整保護功能。 DRV8848 驅動步進馬達阻尼器，而 DRV10983 則驅動 BLDC 風扇，並實現 180° 靜音換向。 BLDC 具有閉合迴路速度控制，使用 MSP430G2553 和 DRV8812 實現基於 PWM 的電源。 此設計使用單層 PCB。 BLDC 和步進控制範例程式碼於 MCU 韌體中提供。 DRV 裝置中整合了過電流、過熱和欠電壓保護。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| HTSSOP (PWP) | 28 | Ultra Librarian |
| VQFN (RHD) | 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。