DRV8870
- H-Bridge Motor Driver
- Drives One DC Motor, One Winding of a Stepper Motor, or Other Loads
- Wide 6.5-V to 45-V Operating Voltage
- 565-mΩ Typical RDS(on) (HS + LS)
- 3.6-A Peak Current Drive
- PWM Control Interface
- Integrated Current Regulation
- Low-Power Sleep Mode
- Small Package and Footprint
- 8-Pin HSOP With PowerPAD™
- 4.9 × 6.0 mm
- Integrated Protection Features
- VM Undervoltage Lockout (UVLO)
- Overcurrent Protection (OCP)
- Thermal Shutdown (TSD)
- Automatic Fault Recovery
The DRV8870 device is a brushed-DC motor driver for printers, appliances, industrial equipment, and other small machines. Two logic inputs control the H-bridge driver, which consists of four N-channel MOSFETs that can control motors bidirectionally with up to 3.6-A peak current. The inputs can be pulse-width modulated (PWM) to control motor speed, using a choice of current-decay modes. Setting both inputs low enters a low-power sleep mode.
The DRV8870 device features integrated current regulation, based on the analog input VREF and the voltage on the ISEN pin, which is proportional to motor current through an external sense resistor. The ability to limit current to a known level can significantly reduce the system power requirements and bulk capacitance needed to maintain stable voltage, especially for motor startup and stall conditions.
The device is fully protected from faults and short circuits, including undervoltage (UVLO), overcurrent (OCP), and overtemperature (TSD). When the fault condition is removed, the device automatically resumes normal operation.
技术文档
| 顶层文档 | 类型 | 标题 | 格式选项 | 下载最新的英语版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 数据表 | DRV88703.6-A Brushed DC Motor Driver (PWM Control) 数据表 (Rev. B) | PDF | HTML | 2016-7-5 | ||
| 应用手册 | 了解电机驱动器电流额定值 (Rev. A) | PDF | HTML | 英语版 (Rev.A) | PDF | HTML | 2024-8-6 | |
| 应用手册 | 有刷电机和步进电机电流调节的配置方法 (Rev. B) | 英语版 (Rev.B) | PDF | HTML | 2021-11-29 | ||
| 应用手册 | 电机驱动器电路板布局的最佳实践 (Rev. B) | PDF | HTML | 英语版 (Rev.B) | PDF | HTML | 2021-8-5 | |
| 应用手册 | Calculating Power Dissipation for a H-Bridge or Half Bridge Driver (Rev. A) | PDF | HTML | 2021-7-22 | |||
| 技术文章 | Overcoming design challenges for brushed-DC motors in smart sanitation systems | PDF | HTML | 2020-7-1 | |||
| 技术文章 | Automating smart home systems with motor drivers | PDF | HTML | 2019-10-24 | |||
| 技术文章 | Using brushed motors to improve battery life and reliability in vacuum robots | PDF | HTML | 2019-7-17 | |||
| 应用手册 | PowerPAD™ Thermally Enhanced Package (Rev. H) | 2018-7-6 | ||||
| 应用简报 | PowerPAD® 轻松实现 (Rev. B) | 2004-5-12 |
设计与开发
如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。
DRV8870EVM — DRV8870 H 桥 PWM 电机驱动器评估模块
DRV8870 评估模块 (EVM) 展现了来自德州仪器 (TI) 的 DRV8870 集成电路的功能和性能。该 EVM 包括 5V 稳压器和 PWM 发生器。评估 DRV8870 需要单一电源。
TIDA-01588 — 效率大于 90% 且适用于有刷直流伺服驱动器的 10.8V/15W、2.4cm2 功率级参考设计
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| HSOIC (DDA) | 8 | Ultra Librarian |
订购和质量
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