WMSIC Electronic Components

TMI TMI8230

ModelTMI8230
PackageDFN-8-EP(2x2)
BrandTMI
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 Option 171152

Availability on request

Technical data

Product details

19 specifications

Core information

Product name
TMI TMI8230
Type
TMI
Minimum package
3000 未知

Technical parameters

Electronic Component
Electronic Component
Electronic Component
TMI
Electronic Component
TMI8230
Electronic Component
1
Package
DFN-8-EP(2x2)
Electronic Component
Brushed DC Motor Driver IC
Electronic Component
0.06g
Electronic Component
1
Integrated FET
Electronic Component
Features
Current Sampling
Electronic Component
BM0266038945
Resistor
285mΩ
Operating Temperature
40℃~+125℃
Operating Voltage
1.8V~7V
Output Current
2.8A
Static Current(Iq)
5nA

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

TMI8230 低静态电流集成FET开关产品概述

一、核心技术参数与集成特性

TMI8230是拓尔微(TMI)推出的单芯片集成FET电源开关,核心参数精准匹配低功耗、宽电压、中小功率设备的需求:

  • 集成FET:无需外接MOSFET及驱动电路,单芯片实现电源路径切换,简化BOM设计(减少3~5个外围器件);
  • 输出电流:持续输出能力达2.8A,满足微型电机、无线模块等中小功率负载的供电需求;
  • 工作电压:1.8V~7V宽范围,兼容单节锂电池(3.7V)、两节锂电池(7.4V)及低电压MCU系统(1.8V);
  • 导通电阻:典型值285mΩ,降低开关损耗(2.8A输出时压降约0.8V),减少设备发热;
  • 静态电流(Iq):仅5nA(典型值),待机功耗极低,是同类产品的核心差异化亮点;
  • 工作温度:-40℃~+125℃宽温范围,适配工业、汽车及极端环境应用。

二、封装形式与尺寸优势

TMI8230采用DFN-8-EP(2x2) 封装,兼具小尺寸与散热优势:

  • 超小尺寸:2mm×2mm的封装面积,相比传统SOT-23封装节省约60%PCB空间,适合便携设备的高密度布局;
  • 散热优化:暴露焊盘(EP)设计增强热传导,可有效散出发热功率(2.8A持续输出时芯片温度可控);
  • 抗干扰性:无引脚DFN封装减少信号串扰,提升电路稳定性。

三、典型应用场景

基于核心参数,TMI8230适用于以下场景:

  1. 可穿戴与便携设备:智能手环、蓝牙耳机、智能手表等,超低静态电流延长电池待机时间(纽扣电池供电可待机5年以上);
  2. 物联网传感器:无线温湿度传感器、智能门锁传感器等,宽电压适配不同电池类型,宽温适配户外极端环境;
  3. 移动电源与充电设备:小功率移动电源的输出开关、无线充电器的电源路径切换;
  4. 工业控制模块:微型执行器电源开关、低功耗工业传感器供电管理,宽温特性满足工业级(-40~+85℃)要求。

四、性能亮点深度解析

TMI8230的核心竞争力体现在三个维度:

  • 超低待机功耗:5nA静态电流意味着,若采用200mAh纽扣电池供电,待机时间可达45000小时(约5年),远优于竞品(部分竞品Iq达10nA以上,待机时间缩短一半);
  • 集成化简化设计:单芯片集成FET,无需额外MOS管、驱动电阻及续流二极管,降低BOM成本及PCB设计复杂度;
  • 宽电压宽温适配:1.8V7V覆盖绝大多数电池供电系统,-40+125℃满足工业、汽车等极端场景需求。

五、应用设计注意事项

为保证稳定工作,设计时需注意:

  1. 焊盘处理:DFN-8-EP的暴露焊盘需采用完整铜箔设计,通过过孔连接内层地,增强散热;
  2. 电流限制:持续输出不超过2.8A,短时峰值不建议超过3A(需增加散热片);
  3. 电压匹配:输入输出电压需在1.8~7V范围内,避免超压损坏芯片;
  4. ESD防护:输入输出端增加TVS管,避免静电损坏。

TMI8230凭借低静态电流、集成化设计及宽温宽压特性,成为电池供电设备、物联网传感器及便携电子的理想电源开关选择,同时拓尔微的国产化供货优势可满足客户量产需求。

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