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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技术文档
| 顶层文档 | 类型 | 标题 | 格式选项 | 下载最新的英语版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 数据表 | DRV8812 Dual-Bridge Motor Controller IC 数据表 (Rev. G) | PDF | HTML | 2014-10-15 | ||
| 应用手册 | 了解电机驱动器电流额定值 (Rev. A) | PDF | HTML | 英语版 (Rev.A) | PDF | HTML | 2024-8-6 | |
| 应用手册 | 有刷电机和步进电机电流调节的配置方法 (Rev. B) | 英语版 (Rev.B) | PDF | HTML | 2021-11-29 | ||
| 应用手册 | 电机驱动器电路板布局的最佳实践 (Rev. B) | PDF | HTML | 英语版 (Rev.B) | PDF | HTML | 2021-8-5 | |
| 应用手册 | Calculating Power Dissipation for a H-Bridge or Half Bridge Driver (Rev. A) | PDF | HTML | 2021-7-22 | |||
| 应用手册 | High Resolution Microstepping Driver With the DRV88xx Series (Rev. A) | PDF | HTML | 2020-12-21 | |||
| 应用简报 | Small Motors in Large Appliances | 2018-7-20 | ||||
| 应用手册 | PowerPAD™ Thermally Enhanced Package (Rev. H) | 2018-7-6 | ||||
| 更多文献资料 | TM4C123x Stepper Motor Control Product Summary | 2015-7-6 | ||||
| 应用手册 | Optimizing High-Level Micro Stepping of the DRV88xx Driver | 2014-7-19 | ||||
| 应用简报 | PowerPAD® 轻松实现 (Rev. B) | 2004-5-12 |
设计与开发
如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。
SLVC342 — DRV88xx Software
TIDA-00297 — 冰箱风门和风扇电机控制解决方案
冰箱通常使用风门来控制气流，并借助风扇实现空气循环。 虽然分立式解决方案已沿用多年，但本参考设计采用了集成式电机驱动器，可提供简便的控制、高性能及全面的保护功能。 DRV8848 驱动步进电机风门，DRV10983 通过安静的 180° 换向驱动 BLDC 风扇。 BLDC 采用闭环速度控制，通过 MSP430G2553 和 DRV8812 实现基于 PWM 的电源供应。 该设计采用单层 PCB。 MCU 固件中提供了 BLDC 和步进电机控制示例代码。 过流、过温和欠压保护功能均集成在 DRV 器件中。
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| HTSSOP (PWP) | 28 | Ultra Librarian |
| VQFN (RHD) | 28 | Ultra Librarian |
订购和质量
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