- 制造厂商：TI
- 产品类别：电机驱动器
- 技术类目：步进电机驱动器
- 功能描述：具有电流调节功能和 1/8 微步进的 32V、1.5A 双极步进电机驱动器
- 点击这里打开及下载DRV8821的技术文档资料
- TI代理渠道，提供当日发货、严格的质量标准，满足您的目标价格
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, undervoltage lockout, and overtemperature.
The DRV8821 is packaged in a 48-pin HTSSOP package (Eco-friendly : RoHS & no Sb/Br).
- 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
- Number of full bridges
- 4
- Vs (Min) (V)
- 8
- Vs ABS (Max) (V)
- 34
- Full-scale current (A)
- 1.5
- Peak output current (A)
- 1.5
- RDS(ON) (HS + LS) (mOhms)
- 550
- Sleep current (uA)
- 20
- Control mode
- STEP/DIR
- Control interface
- Hardware (GPIO)
- Micro-stepping levels
- 8
- Features
- Current Regulation
- Rating
- Catalog
- Operating temperature range (C)
- -40 to 85
DRV8821的完整型号有：DRV8821DCA、DRV8821DCAR，以下是这些产品的关键参数及官网采购报价：
DRV8821DCA，工作温度：-40 to 85，封装：HTSSOP (DCA)-48，包装数量MPQ：40个，MSL 等级/回流焊峰值温度：Level-3-260C-168 HR，引脚镀层/焊球材料：NIPDAU，TI官网DRV8821DCA的批量USD价格：2.323（1000+）
DRV8821DCAR，工作温度：-40 to 85，封装：HTSSOP (DCA)-48，包装数量MPQ：2000个，MSL 等级/回流焊峰值温度：Level-3-260C-168 HR，引脚镀层/焊球材料：NIPDAU，TI官网DRV8821DCAR的批量USD价格：1.936（1000+）
DRV8821EVM — DRV8821 评估模块
DRV8821 是一款双路步进电机控制器评估模块，它包含器件、布线和软件，可简化对用于驱动客户电机的器件的评估过程。
