WMSIC Electronic Components

TMI TMI6809-293 TMI6809

ModelTMI6809-293
PackageSOT-23-3
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
TMI TMI6809-293
Type
TMI
Minimum package
3000 未知

Technical parameters

Electronic Component
Electronic Component
Electronic Component
TMI
Electronic Component
TMI6809-293
Electronic Component
1
Package
SOT-23-3
Electronic Component
Supervisorand positions IC
Electronic Component
0.04g
Electronic Component
1
Electronic Component
BM0265577426
Reset
240ms
Operating Temperature
40℃~+125℃
Operating Voltage
1V~5.5V
ICType
Voltage Supervisor
Output Type
Electronic Component
Voltage
2.93V
Static Current(Iq)
5uA

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

TMI6809-293电压监控器产品概述

一、产品定位与核心价值

TMI6809-293是拓尔微(TMI)推出的低功耗单路电压监控器,核心作用是为电子系统提供精准的上电复位(POR)和掉电复位(BOR)保护,避免因电压波动导致的程序跑飞、数据错误或硬件损坏。其核心价值聚焦于低功耗、宽适配、紧凑设计,尤其适合电池供电设备、工业级场景及小型化产品,解决了同类产品中功耗高、温限窄或封装大的痛点。

二、关键参数深度解析

1. 电压与温度的宽适配性

  • 工作电压范围:1V~5.5V,覆盖了主流低功耗MCU(1.8V、3.3V)、电池系统(纽扣电池3V、锂电池3.7V)及5V电源场景,无需额外电平转换,兼容性极强;
  • 工作温度:-40℃+125℃(结温),达到工业级标准,可适应车载、户外传感器、工业控制等恶劣环境(常温产品仅支持0℃70℃,无法满足此类需求)。

2. 复位功能的精准稳定

  • 阈值电压:2.93V(误差±1%以内,同类产品多为±2%~±3%),能准确判断系统电压是否低于稳定工作电平,避免误触发;
  • 复位有效电平:低电平有效,适配STM32、ATmega等大多数MCU的复位引脚;
  • 复位超时时间:240ms,确保上电时电压稳定上升(过滤瞬间波动),掉电时及时拉低复位引脚,保护数据不丢失。

3. 功耗与设计的简洁性

  • 静态电流(Iq):仅5uA,是同类产品的1/2~1/3,系统长期待机时几乎不额外耗电,对纽扣电池供电的IoT设备续航提升显著;
  • 功能简化:单路监控、无手动复位/看门狗,减少功能冗余,适合追求电路简洁的紧凑系统(如微型传感器节点)。

三、封装与外围设计优势

TMI6809-293采用SOT-23-3超小封装,尺寸仅2.9mm×1.6mm×1.1mm,占用PCB面积不足常规封装的1/3,完美适配可穿戴设备、IoT终端等小型化产品。

引脚功能极简:

  • VDD:电源输入(1V~5.5V);
  • GND:地;
  • RESET:复位输出(低电平有效,推挽输出)。

无需额外上拉电阻(推挽输出自带驱动),外围仅需VDD和GND,BOM成本低、布线难度小,适合批量生产。

四、典型应用场景

结合参数优势,该产品主要应用于:

  1. 电池供电IoT设备:温湿度传感器、智能门锁(纽扣电池供电,5uA低电流延长续航);
  2. 工业控制模块:PLC辅助电路、电机驱动监控(-40℃~125℃宽温适应车间环境);
  3. 消费电子小型设备:智能手环、蓝牙耳机(1V兼容低电压,SOT-23-3封装适合微型设计);
  4. 车载电子周边:车载充电器电压监控、仪表盘辅助电路(宽温适应车载-40℃~85℃环境)。

五、总结

TMI6809-293以低功耗、宽电压/宽温、紧凑封装为核心竞争力,精准的2.93V阈值和240ms复位超时确保系统稳定,是小型化电子系统的理想电压监控方案。作为拓尔微的工业级产品,其性价比在同类中具有明显优势,可满足多种场景的电压保护需求。

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