DRV8818 具有片上 1/8 微步进分度器的 2.5A 双极步进电机驱动器（Step/Dir 控制器）
The DRV8818 provides an integrated stepper motor driver solution for printers, scanners, and other automated equipment applications. The device has two H-bridge drivers, as well as microstepping indexer logic to control a stepper motor.
The output driver block for each consists of N-channel power MOSFETs configured as full H-bridges 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. Decay mode and PWM off time are programmable.
Internal shutdown functions are provided for over current protection, short circuit protection, under-voltage lockout and overtemperature
| DRV8818 | |
| Vs (Min) (V) | 8 |
| Vs (Max) (V) | 38 |
| # of Full Bridges | 2 |
| rDS (ON) (LS + HS) (mOhms) | 400 |
DRV8818 特性
- Pulse Width Modulation (PWM) Microstepping Motor Driver
- Built-In Microstepping Indexer
- Up to 2.5-A Current Per Winding
- Microstepping Indexer Provides up to 1/8-Step Operation
- Low 0.45-Ω (HS + LS) MOSFET On-Resistance
- Pin-Compatible Upgrade to DRV8811 With Lower Rds(on)
- Thermally Enhanced Surface Mount Package
DRV8818 芯片订购指南
| 器件 | 状态 | 温度 | 价格 | 封装 | 引脚 | 封装数量 | 封装载体 | 丝印标记 |
| DRV8818PWP | PREVIEW | -40 to 85 | HTSSOP (PWP) | 28 | 50 | TUBE | ||
| DRV8818PWPR | PREVIEW | -40 to 85 | HTSSOP (PWP) | 28 | 2000 | LARGE T&R |
DRV8818 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 |
| DRV8818PWP | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-3-260C-168 HR | DRV8818PWP | DRV8818PWP |
| DRV8818PWPR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-3-260C-168 HR | DRV8818PWPR | DRV8818PWPR |
DRV8818 应用技术支持与电子电路设计开发资源下载
- DRV8818 数据资料 dataSheet 下载.PDF
- TI 德州仪器电机驱动器产品选型与价格 . xls
- 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)
- 使您的仪器放大器设计达到最佳效果 (zhct011.PDF, 897 KB)
- 低成本电流并联监视器 IC 使动圈式仪表设计复兴 (zhct030.PDF, 1.04 MB)
- Demystifying the Operational Transconductance Amplifier (sboa117.HTM, 8 KB)
- TI 工业自动电机控制/驱动器解决方案 2011 (Rev. B) (PDF 1322 KB)
- 在 PSPICE 中使用德州仪器 (TI) SPICE 模型 (zhca088.HTM, 8 KB)
- PowerPADTM Thermally Enhanced Package (slma002g.HTM, 8 KB)
- 运算放大器的单电源操作 (PDF 2174 KB)
- Tuning in Amplifiers (PDF 44 KB)
- Op Amp Performance Analysis (PDF 76 KB)
- An Error Analysis of the ISO102 in a Small Signal Measuring Application (PDF 29 KB)
- Level Shifting Signals with Differential Amplifiers (PDF 23 KB)
- Operational Amplifier Macromodels: A Comparison (PDF 59 KB)
DRV8818 工具与软件
| 培训内容 | 型号 | 软件/工具类型 |
| DRV8818 评估模块 | DRV8818EVM | 开发电路板/EVM |
| 用于刷式和步进电机的 集成电机驱动器 | DRV8818-C2-KIT | 开发电路板/EVM |