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有刷直流 (BDC) 电机驱动器

DRV8874

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具有集成电流检测反馈功能的 40V、6A H 桥电机驱动器

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数据表

DRV8874

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数据表 立即订购

产品详情

Number of full bridges 1 Vs (min) (V) 4.5 Vs ABS (max) (V) 40 Peak output current (A) 6 RDS(ON) (HS + LS) (mΩ) 200 Sleep current (µA) 0.75 Control mode Independent 1/2-Bridge, PH/EN, PWM Control interface Hardware (GPIO) Features Current sense Amplifier, Integrated Current Sensing Rating Catalog Operating temperature range (°C) -40 to 125
Number of full bridges 1 Vs (min) (V) 4.5 Vs ABS (max) (V) 40 Peak output current (A) 6 RDS(ON) (HS + LS) (mΩ) 200 Sleep current (µA) 0.75 Control mode Independent 1/2-Bridge, PH/EN, PWM Control interface Hardware (GPIO) Features Current sense Amplifier, Integrated Current Sensing Rating Catalog Operating temperature range (°C) -40 to 125
HTSSOP (PWP) 16 32 mm² 5 x 6.4
  • 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)
  • 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 DRV8874 is an integrated motor driver with N-channel H-bridge, charge pump, current sensing and proportional output, current regulation, and protection circuitry. The charge pump improves efficiency by supporting N-channel MOSFET half bridges and 100% duty cycle driving. The family of devices come in pin-to-pin RDS(on) variants to support different loads with minimal design changes.

An internal current mirror architecture on the IPROPI pin implements current sensing and regulation. This eliminates the need for a large power shunt resistor, saving board area and reducing system cost. The IPROPI current-sense output allows a microcontroller to detect motor stall or changes in load conditions. Using the external voltage reference pin, VREF, these devices can regulate the motor current during start-up and high-load events without interaction from a microcontroller.

A low-power sleep mode achieves ultra-low quiescent current draw by shutting down most of the internal circuitry. Internal protection features include supply undervoltage lockout, charge pump undervoltage, output overcurrent, and device overtemperature. Fault conditions are indicated on nFAULT.

View our full portfolio of brushed motor drivers on ti.com.

The DRV8874 is an integrated motor driver with N-channel H-bridge, charge pump, current sensing and proportional output, current regulation, and protection circuitry. The charge pump improves efficiency by supporting N-channel MOSFET half bridges and 100% duty cycle driving. The family of devices come in pin-to-pin RDS(on) variants to support different loads with minimal design changes.

An internal current mirror architecture on the IPROPI pin implements current sensing and regulation. This eliminates the need for a large power shunt resistor, saving board area and reducing system cost. The IPROPI current-sense output allows a microcontroller to detect motor stall or changes in load conditions. Using the external voltage reference pin, VREF, these devices can regulate the motor current during start-up and high-load events without interaction from a microcontroller.

A low-power sleep mode achieves ultra-low quiescent current draw by shutting down most of the internal circuitry. Internal protection features include supply undervoltage lockout, charge pump undervoltage, output overcurrent, and device overtemperature. Fault conditions are indicated on nFAULT.

View our full portfolio of brushed motor drivers on ti.com.
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技术文档

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类型 标题 下载最新的英语版本 日期
* 数据表 DRV8874 H-Bridge Motor Driver With Integrated Current Sense and Regulation 数据表 (Rev. A) PDF | HTML 2019年 5月 28日
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年 10月 12日
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年 7月 25日
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年 11月 29日
技术文章 Overcoming design challenges for brushed-DC motors in smart sanitation systems PDF | HTML 2020年 7月 1日
技术文章 Automating smart home blinds, shades and shutters with motor drivers PDF | HTML 2020年 1月 2日
技术文章 Automating smart home systems with motor drivers PDF | HTML 2019年 10月 24日
技术文章 Using brushed motors to improve battery life and reliability in vacuum robots PDF | HTML 2019年 7月 17日
应用简报 Small Motors in Large Appliances 2018年 7月 20日
应用手册 PowerPAD™ Thermally Enhanced Package (Rev. H) 2018年 7月 6日
应用手册 所选封装材料的热学和电学性质 2008年 10月 16日
应用简报 PowerPAD® 轻松实现 (Rev. B) 2004年 5月 12日

设计和开发

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）。

评估板

DRV8874EVM — DRV8874 单路 H 桥电机驱动器评估模块

DRV8874 评估模块 (EVM) 可轻松评估 DRV8874 器件。

DRV8874 器件是一款集成式 H 桥驱动器，适用于刷式直流和电磁阀应用。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 DRV8874EVM 的输入引脚提供 PWM 信号。PWM 信号的占空比由板载电位器设置。

有关该评估模块的更多信息，请参阅《DRV8874EVM 用户指南》。

用户指南: PDF
TI.com 上无现货
支持软件

SLVC747 — DRV887xEVM Firmware

支持的产品和硬件

支持的产品和硬件

产品
有刷直流 (BDC) 电机驱动器
DRV8874 — 具有集成电流检测反馈功能的 40V、6A H 桥电机驱动器 DRV8876 — 具有集成电流检测和电流检测反馈功能的 40V、3.5A H 桥电机驱动器
硬件开发
评估板
DRV8874-Q1EVM — DRV8874-Q1 单通道 H 桥电机驱动器评估模块 DRV8874EVM — DRV8874 单路 H 桥电机驱动器评估模块 DRV8876-Q1EVM — DRV8876-Q1 单通道 H 桥电机驱动器评估模块 DRV8876EVM — DRV8876 单通道 H 桥电机驱动器评估模块
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仿真模型

DRV8874 PSpice Transient Simulation (Rev. A)

SLVMCX0A.ZIP (112 KB) - PSpice Model
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封装 引脚 CAD 符号、封装和 3D 模型
HTSSOP (PWP) 16 Ultra Librarian
应遵守 TI 评估类商品的标准条款与条件。

订购和质量

包含信息：
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
包含信息：
  • 制造厂地点
  • 封装厂地点

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