WMSIC Electronic Components

ADI/LINEAR MAX811SEUS+T MAX811SEUS

ModelMAX811SEUS+T
PackageSOT-143-4
BrandADI/LINEAR
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
ADI(Analog Devices) / LINEAR MAX811SEUS+T
Type
ADI/LINEAR
Minimum package
2500

Technical parameters

Electronic Component
ADI(Analog Devices) / LINEAR
Electronic Component
MAX811SEUS+T
Electronic Component
1
Package
SOT-143-4
Electronic Component
Supervisorand positions IC
Electronic Component
0.037g
Electronic Component
1
Features
positions
Electronic Component
BM0258734435
Reset
140ms
Operating Temperature
40℃~+85℃
Operating Voltage
1V~5.5V
ICType
Voltage Supervisor
Output Type
Electronic Component
Voltage
2.93V
Static Current(Iq)
10uA

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

MAX811SEUS+T 产品概述

一、主要特点

MAX811SEUS+T 是一款用于微处理器/微控制器电源监控的低功耗 supervisor 芯片,适用于 1.0V 至 5.5V 的电源系统。主要参数包括:单路电压监控、监测阈值为 2.63V、主动低电平复位(RESET 为低有效)、开漏输出、带手动复位按键输入、复位维持时间约 140ms、典型静态电流仅 10µA,工作温度范围 -40℃ 至 +85℃,封装为 SOT-143-4,品牌为 ADI/Linear,带卷带包装(+T)。

二、功能与工作原理

芯片持续监测单路系统电源电压。当被监控电压低于内部阈值(2.63V)时,器件将把 RESET 引脚拉为低电平以保持系统复位;当电压回升并稳定超过阈值后,器件在内置的复位超时(典型 140ms)后释放 RESET,使系统可靠上电。器件提供一个手动复位输入(通常标为 MR),外部按键或逻辑信号可强制产生低电平复位。输出为开漏类型,便于与多设备线或外部上拉电阻配合使用。

三、典型应用场景

  • 微控制器和嵌入式系统的上电复位与欠压监测
  • 电池供电设备、便携式终端、传感节点的电源管理
  • 多电源系统中对单一路电压的监督与系统复位控制
  • 需要低静态电流并延长电池寿命的低功耗设计

四、封装与电气特性摘要

  • 封装:SOT-143-4(紧凑、便于自动贴装)
  • 电源电压范围:1.0V ~ 5.5V
  • 监控通道:1 路
  • 阈值电压:2.63V(检测点)
  • 复位时序:复位超时典型 140ms
  • 静态电流:典型 10µA(低功耗)
  • 输出类型:开漏(需外部上拉)
  • 工作温度:-40℃ ~ +85℃

五、设计注意事项

  • 由于输出为开漏,系统设计时需在 RESET 线上配置合适的上拉电阻(上拉到 VCC,阻值根据上拉速度与功耗权衡选择)。
  • 在高噪声或长走线环境中,建议在 VCC 与 GND 之间放置去耦电容(例如 0.1µF)靠近器件电源脚以避免误触发。
  • 手动复位(MR)引脚应加上适当的上拉/下拉或防抖电路以避免抖动导致误复位。
  • 若系统需要推挽输出版本,请在选型时确认器件后缀或替代型号(开漏与推挽输出在系统接口要求上有明显区别)。

六、选型建议与替代

MAX811SEUS+T 适合对单一路电压进行可靠监控且要求极低静态电流的应用。若需要不同阈值、推挽输出或内置看门狗功能,可参考同系列或同类器件并核对输出类型与阈值公差。购买时注意后缀 +T 表示卷带包装,便于自动化贴片生产。

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