DRV8821 双路步进电机控制器/驱动器
DRV8821 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
|
DRV8811 |
DRV8821 |
| Vs(Min)(V) |
8 |
8 |
| Vs(Max)(V) |
40 |
32 |
| Output Current(Min)(A) |
2.5 |
1.5 |
| rDS(on)(Ohms) |
1.0 |
0.6 |
| Switching Frequency (Single-Ended)(kHz) |
ADJ |
50 |
| Iq(mA) |
8 |
5 |
| Iq(Max)(mA) |
12 |
8 |
| Operating Temperature Range(°C) |
-40 to 85 |
-40 to 85 |
| Pin/Package |
28HTSSOP |
48HTSSOP |
DRV8821 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
DRV8821 芯片订购指南
| 器件 |
状态 |
温度 (oC) |
价格（美元） |
封装 | 引脚 |
封装数量 | 封装载体 |
丝印标记 |
| DRV8821DCA |
ACTIVE |
-40 to 85 |
2.40 | 1ku |
HTSSOP (PWP) | 48 |
40 | TUBE |
DRV8821 |
| DRV8821DCAR |
ACTIVE |
-40 to 85 |
2.00 | 1ku |
HTSSOP (PWP) | 48 |
2000 | LARGE T&R |
DRV8821 |
DRV8821 质量与无铅数据
| 器件 |
环保计划* |
铅/焊球涂层 |
MSL 等级/回流焊峰 |
环保信息与无铅 (Pb-free) |
DPPM / MTBF / FIT 率 |
| DRV8821DCA |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-3-260C-168 HR |
DRV8821DCA |
DRV8821DCA |
| DRV8821DCAR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-3-260C-168 HR |
DRV8821DCAR |
DRV8821DCAR |
DRV8821 应用技术支持与电子电路设计开发资源下载
- DRV8821 数据资料 dataSheet 下载.PDF
- TI 德州仪器运动/电机控制产品选型与价格 . xls
- PowerPADTM Thermally Enhanced Package
(PDF 1040 KB)
- 全面认识开关型电源中的BUCK-BOOST功率级 (Rev. A)
(PDF 2206 KB)
- Shelf-Life Evaluation of Lead-Free Component Finishes (PDF 1305 KB)
- PowerPADTM Made Easy (PDF 57 KB)
- 标准线性产品交叉参考 (Rev. D)
(PDF 1058 KB)
- 模数规格和性能特性术语表 (Rev. A) (PDF 1993 KB)
- 所选封装材料的热学和电学性质 (PDF 645 KB)
- 高速数据转换 (PDF 1967 KB)
DRV8821 相关工具
| 名称 |
型号 |
公司 |
工具/软件类型 |
| DRV8821 评估模块 |
DRV8821EVM |
Texas Instruments |
开发电路板/EVM |