WMSIC Electronic Components

MICROCHIP MIC811TUY-TR MIC811TUY

ModelMIC811TUY-TR
PackageSOT-143-4
BrandMICROCHIP
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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
MICROCHIP MIC811TUY-TR
Type
MICROCHIP
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
MICROCHIP
Electronic Component
MIC811TUY-TR
Electronic Component
1
Package
SOT-143-4
Electronic Component
Supervisorand positions IC
Electronic Component
0.018g
Electronic Component
1
Features
positions
Electronic Component
BM0228151875
Reset
140ms
Operating Temperature
40℃~+85℃
Operating Voltage
3V~3.15V
ICType
Voltage Supervisor
Output Type
Electronic Component
Voltage
3.08V

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

MIC811TUY-TR 产品概述

一、主要特性

MIC811TUY-TR 是 Microchip(美国微芯)推出的一款单通道电压监控器,专为对 3V 供电系统进行可靠复位监测而设计。核心参数包括:工作电压范围 3.00V ~ 3.15V,监测阈值 3.08V,复位为低电平有效,输出为开漏型,可与外部上拉电阻配合使用。内部复位保持时间典型值 140 ms,静态电流仅 5 μA,工作温度范围 -40℃ 到 +85℃,封装为 SOT-143-4(器件型号后缀 -TR 表示卷带包装,便于 SMT 贴片生产)。

二、产品功能

MIC811TUY-TR 对单一路电源进行可靠监督,当被监控电压低于 3.08V 时,器件将输出主动低电平复位信号;当电压回升并稳定超过阈值后,保持约 140 ms 的复位超时以确保系统上电稳定后再释放复位。器件带有手动复位(MR)功能,外部拉低 MR 可强制产生复位,适用于人工或外部控制触发复位的场景。该器件不集成看门狗定时器,专注于电源监测与复位管理。

三、典型应用

  • MCU/数字系统上电复位与电源监督
  • 电池供电与便携式设备电压临界保护
  • 电源管理与多电源顺序控制(与其他监控器组合)
  • 工业控制与通信终端的稳健上电与断电复位

四、使用建议与注意事项

  • 由于输出为开漏型,必须外接上拉电阻到系统电源;常用值 4.7k–100kΩ,典型 10kΩ 能在速度与功耗间取得平衡。
  • 将器件靠近受监控的 VCC 引脚布线,避免长导线引入寄生电阻或干扰,保证阈值检测精度。
  • 在 VCC 引脚并联 0.1 μF 陶瓷去耦电容,以抑制瞬态噪声,确保复位阈值不被短时脉冲触发。
  • MR 引脚为低电平有效的手动复位输入,连接到按键或外部逻辑时应考虑去抖与上拉设计,避免误复位。
  • 工作温度为 -40℃ ~ +85℃,在极端环境下应校验系统整体可靠性。

五、封装与订购信息

MIC811TUY-TR 提供 SOT-143-4 小型封装,适合空间受限的 SMT 应用;后缀 “-TR” 表示卷带(Tape & Reel)包装,便于自动贴片生产线使用。作为低电流、精确定阈的电压监控器,该器件适用于对供电稳定性要求较高的便携与工业电子产品。若需并联多通道或具推挽输出的版本,可咨询 Microchip 系列其他型号以匹配具体系统需求。

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