WMSIC Electronic Components

TI DRV8311PRRWR

ModelDRV8311PRRWR
PackageWQFN-24(3x3)
BrandTI
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
TI(Texas Instruments) DRV8311PRRWR
Type
TI
Minimum package
5000 个

Technical parameters

Electronic Component
Electronic Component
Electronic Component
TI(Texas Instruments)
Electronic Component
DRV8311PRRWR
Electronic Component
1
Package
WQFN-24(3x3)
Electronic Component
BLDC Motor Driver IC
Electronic Component
0.052g
Electronic Component
1
Integrated FET
Electronic Component
Electronic Component
3
Electronic Component
BM0258750911
Resistor
210mΩ
Current
5A
Operating Temperature
40℃~+125℃
Interface Type
SPI
Driver Type
Electronic Component

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

DRV8311PRRWR 产品概述

一、产品简介

DRV8311PRRWR 是德州仪器(TI)的一款三相无刷直流(BLDC)电机驱动芯片,内置功率场效应管(Integrated FET),支持 PWM 与 STEP/DIR 两种驱动方式,并通过 SPI 接口实现参数配置与诊断。器件工作电压范围宽(3V ~ 20V),峰值电流可达 5A,适用于小型到中型无刷电机驱动方案,封装为紧凑型 WQFN-24(3 mm × 3 mm),额定工作温度范围 -40℃ ~ +125℃。

二、主要参数

  • 驱动类型:三相(3 半桥)
  • 集成 FET:有(简化外部功率器件设计)
  • 峰值电流:5A
  • 导通电阻(Rds(on)):210 mΩ(典型值)
  • 静态电流(Iq):12 mA
  • 接口类型:SPI(配置与诊断)、兼容 PWM / STEP-DIR 控制
  • 工作电压:3 V ~ 20 V
  • 工作温度:-40℃ ~ +125℃
  • 封装:WQFN-24(3×3 mm)

三、功能特性

  • 集成高低侧 FET,减少外部器件数量与 PCB 面积,适合空间受限的嵌入式系统。
  • 支持硬件 PWM 与 STEP/DIR 两类控制方式,便于与不同 MCU 或运动控制器配合。
  • SPI 接口用于寄存器配置、状态读取与故障诊断,便于软件化调优与保护管理。
  • 低静态电流设计(Iq ≈ 12 mA),有利于待机功耗控制。
  • 宽电压输入与高温工作能力,适合多种电源与环境条件下应用。

四、典型应用场景

  • 无人机 / 多旋翼小型电机驱动(小功率级)
  • 机器人关节、舵机、平衡平台等精密运动控制
  • 风扇、电动工具、微型泵与压缩机的驱动控制
  • 办公设备、家电及工业自动化中的无刷直流电机应用

五、设计与注意事项

  • 热管理:尽管器件集成 FET,但在接近峰值电流工作时仍需关注功耗与散热,建议设计大面积导热焊盘并在底层增加散热铜箔以提升热传导。
  • PCB 布局:相绕线(PHASE)与电源回路应尽量短且对称,逻辑电源与模拟地应合理分割并在器件附近放置充分的去耦电容。
  • 保护与配置:芯片通常包含多种内部保护机制,实际阈值与行为请参阅数据手册;推荐在系统层面配合软限流、过温保护与合理的电流检测策略。
  • 接口使用:在使用 SPI 进行配置时,需遵循 TI 的寄存器加载流程;若采用 STEP/DIR 模式,应考虑步进频率与电流设置对热耗与输出力矩的影响。
  • 评估与验证:建议在设计初期使用参考电路或评估板进行电流、温度与电磁兼容测试,确认器件在目标工况下的稳定性与寿命。

六、封装与环境

  • 封装形式:WQFN-24,3×3 mm,适合高密度 PCB 布局。
  • 环境适应性:工作温度 -40℃ ~ +125℃,适用于较严苛的工业与消费类环境。

总结:DRV8311PRRWR 为一款集成度高、控制灵活的三相 BLDC 驱动芯片,适合需要小体积、简化外部元件且具备 SPI 配置与诊断能力的中小功率电机应用。在实际设计中,重点关注热管理与 PCB 布局,并参考 TI 官方数据手册以获取详细的寄存器、保护阈值及典型应用电路。

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