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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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
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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
仿真模型

DRV8874 PSpice Transient Simulation (Rev. A)

SLVMCX0A.ZIP (112 KB) - PSpice Model
封装 引脚 下载
HTSSOP (PWP) 16 查看选项

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

推荐产品可能包含与 TI 此产品相关的参数、评估模块或参考设计。

支持和培训

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