DRV8821 - 具有 1/8 微步进分度器的 1.5A 双路双极步进电机驱动器（Step/Dir 控制器）

DRV8821是TI德州仪器公司的一款集成FET的步进栅极驱动器产品，DRV8821是具有 1/8 微步进分度器的 1.5A 双路双极步进电机驱动器（Step/Dir 控制器），本站介绍了DRV8821的封装应用图解、特点和优点、功能等，并给出了与DRV8821相关的TI元器件型号供参考。

DRV8821 - 具有 1/8 微步进分度器的 1.5A 双路双极步进电机驱动器（Step/Dir 控制器） - 集成FET的步进栅极驱动器 - 步进驱动器 - 德州仪器

产品描述

The DRV8821 provides a dual microstepping-capable stepper motor controller/driver solution for printers, scanners, and other office automation equipment applications.

Two independent stepper motor driver circuits include four H-bridge drivers and microstepping-capable indexer logic. Each of the motor driver blocks employ N-channel power MOSFETs configured as an H-bridge to drive the motor windings.

A simple step/direction interface allows easy interfacing to controller circuits. Pins allow configuration of the motor in full-step, half-step, quarter-step, or eighth step modes, and the selection of slow or mixed decay modes.

Internal shutdown functions are provided for over current protection, short circuit protection, under voltage lockout and overtemperature.

The DRV8821 is packaged in a 48-pin HTSSOP package (Eco-friendly : RoHS & no Sb/Br).

产品特性

Dual PWM microstepping motor driver
- Built-In Microstepping Indexers
- Up to 1.5-A Current Per Winding
- Three-Bit Winding Current Control Allows up to Eight Current Levels
- Low MOSFET On-Resistance
- Selectable Slow or Mixed Decay Modes
8-V to 32-V Operating Supply Voltage Range
Internal Charge Pump for Gate Drive
Built-in 3.3-V Reference
Simple Step/Direction Interface
Fully Protected Against Undervoltage, Overtemperature, and Overcurrent
Thermally Enhanced Surface Mount Package
APPLICATIONS
- Printers
- Scanners
- Office Automation Machines
- Gaming Machines
- Factory Automation
- Robotics

PowerPad Is a trademark of Texas Instruments.

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