产品详细信息

Number of full bridges 1 Vs (Min) (V) 4.5 Vs ABS (Max) (V) 35 Peak output current (A) 3.7 RDS(ON) (HS + LS) (mOhms) 600 Sleep current (uA) 1 Control mode PWM Control interface Hardware (GPIO) Features Current Regulation, Low-Power Sleep Mode Rating Catalog Operating temperature range (C) -40 to 150
Number of full bridges 1 Vs (Min) (V) 4.5 Vs ABS (Max) (V) 35 Peak output current (A) 3.7 RDS(ON) (HS + LS) (mOhms) 600 Sleep current (uA) 1 Control mode PWM Control interface Hardware (GPIO) Features Current Regulation, Low-Power Sleep Mode Rating Catalog Operating temperature range (C) -40 to 150
HSOIC (DDA) 8 19 mm² 4.9 x 3.9 WSON (DSG) 8 4 mm² 2 x 2
  • N-channel H-bridge brushed DC motor driver

  • 4.5-V to 33-V operating supply voltage range
  • Pin-to-pin, RDS(on), voltage, and current sense/regulation variants (external shunt resistor and integrated current mirror)

    • DRV8870: 6.5-V to 45-V, 565-mΩ, shunt

    • DRV8251: 4.5-V to 48-V, 450-mΩ, shunt

    • DRV8251A: 4.5-V to 48-V, 450-mΩ, mirror

    • DRV8231: 4.5-V to 33-V, 600-mΩ, shunt

    • DRV8231A: 4.5-V to 33-V, 600-mΩ, mirror

  • High output current capability: 3.7-A Peak
  • PWM control interface
  • Supports 1.8-V, 3.3-V, and 5-V logic inputs
  • Integrated current regulation
  • Low-power sleep mode
    • <1-µA at VVM = 24-V, TJ = 25°C
  • Small package and footprint
    • 8-Pin WSON with PowerPAD™, 2.0 × 2.0 mm
    • 8-Pin HSOP with PowerPAD™, 4.9 × 6.0 mm
  • Integrated protection features
    • VM undervoltage lockout (UVLO)
    • Auto-retry overcurrent protection (OCP)
    • Thermal shutdown (TSD)
  • N-channel H-bridge brushed DC motor driver

  • 4.5-V to 33-V operating supply voltage range
  • Pin-to-pin, RDS(on), voltage, and current sense/regulation variants (external shunt resistor and integrated current mirror)

    • DRV8870: 6.5-V to 45-V, 565-mΩ, shunt

    • DRV8251: 4.5-V to 48-V, 450-mΩ, shunt

    • DRV8251A: 4.5-V to 48-V, 450-mΩ, mirror

    • DRV8231: 4.5-V to 33-V, 600-mΩ, shunt

    • DRV8231A: 4.5-V to 33-V, 600-mΩ, mirror

  • High output current capability: 3.7-A Peak
  • PWM control interface
  • Supports 1.8-V, 3.3-V, and 5-V logic inputs
  • Integrated current regulation
  • Low-power sleep mode
    • <1-µA at VVM = 24-V, TJ = 25°C
  • Small package and footprint
    • 8-Pin WSON with PowerPAD™, 2.0 × 2.0 mm
    • 8-Pin HSOP with PowerPAD™, 4.9 × 6.0 mm
  • Integrated protection features
    • VM undervoltage lockout (UVLO)
    • Auto-retry overcurrent protection (OCP)
    • Thermal shutdown (TSD)

The DRV8231 device is an integrated motor driver with N-channel H-bridge, charge pump, current regulation, and protection circuitry. The charge pump improves efficiency by supporting N-channel MOSFET half bridges and 100% duty cycle driving.

The DRV8231 implements a current regulation feature by comparing the analog input VREF and the voltage across a current-sense shunt resistor on the ISEN pin. The ability to limit current can significantly reduce large currents during motor startup and stall conditions.

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, output overcurrent, and device overtemperature.

The DRV8231 is part of a family of devices which come in pin-to-pin, scalable RDS(on) and supply voltage options to support various loads and supply rails with minimal design changes. See Section 5 for information on the devices in this family. View the full portfolio of brushed motor drivers on ti.com.

The DRV8231 device is an integrated motor driver with N-channel H-bridge, charge pump, current regulation, and protection circuitry. The charge pump improves efficiency by supporting N-channel MOSFET half bridges and 100% duty cycle driving.

The DRV8231 implements a current regulation feature by comparing the analog input VREF and the voltage across a current-sense shunt resistor on the ISEN pin. The ability to limit current can significantly reduce large currents during motor startup and stall conditions.

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, output overcurrent, and device overtemperature.

The DRV8231 is part of a family of devices which come in pin-to-pin, scalable RDS(on) and supply voltage options to support various loads and supply rails with minimal design changes. See Section 5 for information on the devices in this family. View the full portfolio of brushed motor drivers on ti.com.

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技术文档

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* 数据表 DRV8231 3.7-A Brushed DC Motor Driver with Integrated Current Regulation 数据表 PDF | HTML 2020年 11月 19日
技术文章 Using brushed motors to improve battery life and reliability in vacuum robots 2019年 7月 17日
技术文章 Why are you still driving automotive motors with relays? 2017年 7月 13日
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设计和开发

如需其他信息或资源,请查看下方列表,点击标题即可进入详情页面。

评估板

DRV8251EVM — DRV8251 电机驱动器评估模块

DRV8251 评估模块 (EVM) 可轻松评估 DRV8251 器件。该 EVM 已被编程并配置为开箱即用,可用于立即开始旋转电机。

DRV8251 是一款额定电压为 4.5V 至 48V 的单 H 桥驱动器,能够驱动高达 3.7A 的电流。该 EVM 可轻松控制 DRV8251,无需使用 GUI。该 EVM 配备了两个电位计,可用于调节控制信号占空比。如果需要,可断开板载 MCU,以便 DRV8251 可由外部控制器控制。

用户指南: PDF
TI.com 無法提供
封装 引脚数 下载
SO PowerPAD (DDA) 8 了解详情
WSON (DSG) 8 了解详情

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
  • 认证摘要
  • 持续可靠性监测

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