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DRV8231A的基本参数
  • 制造厂商:TI
  • 产品类别:电机驱动器
  • 技术类目:有刷直流 (BDC) 电机驱动器
  • 功能描述:具有集成电流调节和电流检测反馈功能的 35V、3.7A H 桥电机驱动器
  • 点击这里打开及下载DRV8231A的技术文档资料
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DRV8231A的产品详情:

The DRV8231A device is an integrated motor driver with N-channel H-bridge, charge pump, current sense feedback, current regulation, and protection circuitry. The charge pump improves efficiency by supporting N-channel MOSFET half bridges and 100% duty cycle driving.

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. The external voltage reference pin, VREF, determines the threshold of current regulation during start-up and stall 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, output overcurrent, and device overtemperature.

The DRV8231A 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.

DRV8231A的优势和特性:
  • 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 IPROPI current sensing for stall detection and 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)
DRV8231A的参数(英文):
  • 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, Integrated Current Sensing, Low-Power Sleep Mode
  • Rating
  • Catalog
  • Operating temperature range (C)
  • -40 to 150
DRV8231A具体的完整产品型号参数及价格(美元):

DRV8231A的完整型号有:DRV8231ADDAR、DRV8231ADSGR,以下是这些产品的关键参数及官网采购报价:

DRV8231ADDAR,工作温度:-40 to 150,封装:SO PowerPAD (DDA)-8,包装数量MPQ:3000个,MSL 等级/回流焊峰值温度:Level-3-260C-168 HR,引脚镀层/焊球材料:NIPDAU,TI官网DRV8231ADDAR的批量USD价格:.696(1000+)

DRV8231ADSGR,工作温度:-40 to 150,封装:WSON (DSG)-8,包装数量MPQ:3000个,MSL 等级/回流焊峰值温度:Level-2-260C-1 YEAR,引脚镀层/焊球材料:NIPDAU,TI官网DRV8231ADSGR的批量USD价格:.638(1000+)

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DRV8231A的评估套件:

DRV8251AEVM — DRV8251A 电机驱动器评估模块

DRV8251A 评估模块 (EVM) 可轻松评估 DRV8251A 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。

DRV8251A 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 DRV8251A,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 DRV8251A 可由外部控制器控制。

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