DRV8876
- N-channel H-bridge motor
driver
- Drives one bidirectional brushed DC motor
- Two unidirectional brushed DC motors
- Other resistive and inductive loads
- 4.5-V to 37-V operating supply voltage range
- Pin to pin
RDS(on) variants
- DRV8874: 200-mΩ (High-Side + Low-Side)
- DRV8876: 700-mΩ (High-Side + Low-Side)
- High output current capability
- DRV8874: 6-A Peak
- DRV8876: 3.5-A Peak
- Integrated current sensing and regulation
- Proportional current output (IPROPI)
- Selectable current regulation (IMODE)
- Cycle-by-cycle or fixed off time
- Selectable input control modes
(PMODE)
- PH/EN and PWM H-bridge control modes
- Independent half-bridge control mode
- Supports 1.8-V, 3.3-V, and 5-V logic inputs
- Ultra low-power sleep mode
- <1-µA @ VVM = 24-V, TJ = 25°C
- Spread spectrum clocking for low electromagnetic interference (EMI)
- Integrated protection features
- Undervoltage lockout (UVLO)
- Charge pump undervoltage (CPUV)
- Overcurrent protection (OCP)
- Automatic retry or outputs latched off (IMODE)
- Thermal shutdown (TSD)
- Automatic fault recovery
- Fault indicator pin (nFAULT)
The DRV887x family of devices are flexible motor drivers for a wide variety of applications. The devices integrate an N-channel H-bridge, charge pump regulator, current sensing and regulation, current proportional output, and protection circuitry. The charge pump improves efficiency by allowing for both high-side and low-side N-channels MOSFETs and 100% duty cycle support. The family of devices come in pin-to-pin, scalable RDS(on) options to support different loads with minimal design changes.
Integrated current sensing allows for the driver to regulate the motor current during start up and high load events. A current limit can be set with an adjustable external voltage reference. Additionally, the devices provide an output current proportional to the motor load current. This can be used to detect motor stall or change in load conditions. The integrated current sensing uses an internal current mirror architecture, removing the need for a large power shunt resistor, saving board area and reducing system cost.
A low-power sleep mode is provided to achieve ultra-low quiescent current draw by shutting down most of the internal circuitry. Internal protection features are provided for supply undervoltage lockout (UVLO), charge pump undervoltage (CPUV), output overcurrent (OCP), and device overtemperature (TSD). Fault conditions are indicated on nFAULT.
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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 | DRV8876 H-Bridge Motor Driver With Integrated Current Sense and Regulation 数据表 (Rev. B) | PDF | HTML | 2019-11-8 | ||
| 应用简报 | 集成电流感测的优势 (Rev. B) | PDF | HTML | 英语版 (Rev.B) | PDF | HTML | 2022-10-12 | |
| 应用手册 | 使用电机驱动器驱动螺线管 (Rev. A) | PDF | HTML | 英语版 (Rev.A) | PDF | HTML | 2022-7-25 | |
| 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 | ||
| 技术文章 | How to efficiently drive 12-V and 24-V engine loads in automotive systems | PDF | HTML | 2020-7-9 | |||
| 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 blinds, shades and shutters with motor drivers | PDF | HTML | 2020-1-2 | |||
| 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 | |||
| 应用简报 | Small Motors in Large Appliances | 2018-7-20 | ||||
| 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）。
DRV8876EVM — DRV8876 单通道 H 桥电机驱动器评估模块
DRV8876 评估模块 (EVM) 可用于轻松评估 DRV8876 器件。 DRV8876 器件是一款集成式 H 桥驱动器，适用于有刷直流和电磁阀应用。使用此评估模块，可以将器件配置为 PWM、相位/使能端或独立半桥控制模式。板载 MSP430FR2100 可以为 DRV8876EVM 的输入引脚提供 PWM 信号。PWM 信号的占空比通过板载电位器来设置。
更多有关该评估模块的信息，请参阅《DRV8876EVM 用户指南》。
SLVC747 — DRV887xEVM Firmware
TIDA-010073 — 具有失速检测和速度控制功能的 18V、2A、25mm 有刷直流电机驱动器参考设计
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| VQFN (RGT) | 16 | Ultra Librarian |
| HTSSOP (PWP) | 16 | Ultra Librarian |
订购和质量
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