Texas Instruments 德州仪器 DRV8880 2A 步进电机驱动器
德州仪器 DRV8880 2A 步进电机驱动器是一款工业用双极性步进驱动器。该器件有两个 N 通道功率 MOSFET H 桥驱动器和一个微步索引器。DRV8880 可以驱动 2.0A 满量程电流或 1.4A rms 电流(在使用适当 PCB 接地层进行散热,电压为 24V 且 TA = 25°C 时)。AutoTune™ 能够自动调节步进电机,使其具有最佳电流调节性能,并且能够补偿电机变化和老化。STEP/DIR 引脚提供简单的控制接口。该器件可以配置为整步模式至最大 16 细分模式。使用专用的 nSLEEP 引脚可以调整为低功耗休眠模式,在待机时消耗非常低的静态电流。特性
- Microstepping Stepper Motor Driver
- STEP/DIR Interface
- Up to 1/16 Microstepping Indexer
- Non-Circular and Standard 1/2 Step Modes
- 6.5 to 45V Operating Supply Voltage Range
- Multiple Decay Modes to Support Any Motor
- AutoTune
- Mixed Decay
- Slow Decay
- Fast Decay
- Adaptive Blanking Time for Smooth Stepping
- Configurable Off-Time PWM Chopping
- 10, 20, or 30μs Off-Time
- 3.3V, 1mA LDO Regulator
- Low-Current Sleep Mode (28μA)
- Small Package and Footprint
- 28 HTSSOP (PowerPAD)
- 28 WQFN (PowerPAD)
- Protection Features
- VM Undervoltage Lockout (UVLO2)
- Logic Undervoltage (UVLO1)
- Charge Pump Undervoltage (CPUV)
- Overcurrent Protection (OCP)
- Latched OCP Mode
- Retry OCP Mode
- Thermal Shutdown (TSD)
- Fault Condition Indication Pin (nFAULT)
应用
- Automatic Teller and Money Handling Machines
- Video Security Cameras
- Multi-Function Printers and Document Scanners
- 3D Printers
- Office Automation Machines
- Factory Automation and Robotics
视频
Simplified System Diagram
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发布日期: 2015-10-01
| 更新日期: 2022-03-11
