WMSIC Electronic Components

ADI/LINEAR MAX811REUS+T MAX811REUS

ModelMAX811REUS+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 MAX811REUS+T
Type
ADI/LINEAR
Minimum package
2500

Technical parameters

Electronic Component
ADI(Analog Devices) / LINEAR
Electronic Component
MAX811REUS+T
Electronic Component
1
Package
SOT-143-4
Electronic Component
Supervisorand positions IC
Electronic Component
0.037g
Electronic Component
1
Features
positions
Electronic Component
BM0258713072
Reset
140ms
Operating Temperature
40℃~+85℃
Operating Voltage
1V~5.5V
ICType
Voltage Supervisor
Output Type
Electronic Component
Voltage
2.63V
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.

MAX811REUS+T 产品概述

一、器件简介

MAX811REUS+T 是一款用于微处理器和数字系统的电压监控器(Processor Supervisor),对单路电源进行监控,并在电源异常或手动触发时产生低电平有效复位信号。器件工作电压范围宽(1.0V 至 5.5V),静态电流仅约 10 µA,适合电池供电和低功耗系统使用。封装为 SOT-143-4,带卷带包装(+T)。

二、主要参数

  • 监控阈值:2.63 V(固定阈值)
  • 供电电压:1.0 V ~ 5.5 V
  • 复位输出:低电平有效,开漏(需外接上拉)
  • 复位保持时间(超时):约 140 ms
  • 受监控通道:1 路
  • 手动复位:外部手动复位输入(便于按键或外部逻辑强制复位)
  • 静态电流:典型 10 µA(低功耗)
  • 工作温度范围:-40 ℃ ~ +85 ℃
  • 封装:SOT-143-4(小尺寸,适合空间受限应用)
  • 品牌:ADI / Linear(Maxim 系列器件,现属 ADI)

三、功能特点与行为

MAX811REUS+T 在供电电压跌破 2.63 V 时将输出一个低电平复位信号,保持约 140 ms,以保证系统在电源恢复后有足够的时间复位并进入稳定工作状态。器件输出为开漏结构,需通过外部上拉抵达所需逻辑电平;手动复位输入允许外接按键或外部逻辑直接触发复位(通常为拉低触发),便于系统维护与调试。低静态电流使其在待机或低功耗模式下对电池影响极小。

四、典型应用场景

  • 微处理器、微控制器复位管理
  • 电池供电设备、电源管理模块
  • 工业控制、通信终端的上电/掉电复位保护
  • FPGA/ASIC 的电源监控与复位排序
  • 消费电子、便携式设备的可靠性设计

五、设计建议与注意事项

  • 由于复位输出为开漏,请在复位引脚与系统电源之间加上合适阻值的上拉电阻(常用 10 kΩ 范围),以匹配系统逻辑电平。
  • 在 VCC 引脚附近放置 0.1 µF 旁路电容,靠近器件以抑制瞬态噪声,保证检测精度。
  • 手动复位(MR)引脚常通过上拉到 VCC 保持非触发状态,按键或外部逻辑拉低 MR 即可触发复位。若手动复位为高电平触发,请按具体原理图确认极性。
  • 选择器件时注意阈值与系统最低工作电压的余量,确保在电源下降沿系统不会进入不可预测状态。
  • 工作环境温度在 -40 ℃ 至 +85 ℃ 范围内可保证器件规格一致性;若需更宽温度范围请确认相关型号。

六、封装与订购信息

该型号采用 SOT-143-4 小封装,适合空间受限的 PCB 设计。后缀 +T 表示卷带包装(Tape & Reel),便于自动贴片生产线使用。品牌归属 ADI(原 Maxim/Linear 系列),在采购时请核对完整型号与供应商信息以保证版本与参数一致。

总结:MAX811REUS+T 以其固定的 2.63 V 门槛、140 ms 复位保持时间和极低的静态电流,适合对单路电源进行可靠复位管理的低功耗系统。配合合理的上拉、电源旁路和手动复位设计,可在多种嵌入式与便携式应用中提高系统的上电可靠性与抗毛刺能力。

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