WMSIC Electronic Components

ADI/LINEAR MAX823TEUK+T MAX823TEUK

ModelMAX823TEUK+T
PackageSOT-23-5
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
ADI(Analog Devices) / LINEAR MAX823TEUK+T
Type
ADI/LINEAR
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
ADI(Analog Devices) / LINEAR
Electronic Component
MAX823TEUK+T
Electronic Component
1
Package
SOT-23-5
Electronic Component
Supervisorand positions IC
Electronic Component
0.043g
Electronic Component
1
Features
positions; Gate
Electronic Component
BM0258698463
Reset
200ms
Operating Temperature
40℃~+125℃@(TA)
Operating Voltage
3.15V~3.6V
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.

MAX823TEUK+T 产品概述

一、产品简介

MAX823TEUK+T 是一款针对微处理器和微控制器供电监控的处理器监督器(Processor Supervisor)。本器件在单路电压监控下,当被监控电压下降到设定阈值或看门狗未在规定时间内复位时,产生低电平有效的复位信号,用以保证系统在电压异常或软件失控时被可靠复位。器件采用 SOT-23-5 封装,适合紧凑型电路板设计,品牌来源 ADI(亚德诺)/LINEAR。

二、主要参数与功能亮点

  • 工作电压范围:3.15 V ~ 3.6 V,适配 3.3 V 供电系统的精确监控需求。
  • 监控阈值:3.08 V(典型),在 VCC 低于该阈值时触发复位。
  • 复位输出:低电平有效(Active Low),器件输出为开漏(需外部上拉),便于与多设备总线或不同电压域连接。
  • 复位超时:200 ms,保证在电源恢复或错误条件清除后,给处理器足够的启动时间。
  • 受监控电压通道:1 路,适用于单电源系统。
  • 手动复位(Manual Reset):器件提供手动复位输入,便于人工或外部电路触发系统复位。
  • 看门狗定时器:内置看门狗功能,若在规定周期内未收到喂狗信号(WDI),将触发复位,提高系统对软件死锁的自恢复能力。
  • 工作温度范围:-40 ℃ ~ +125 ℃(Ta),满足工业级环境要求。
  • 封装:SOT-23-5,便于表面贴装(T/R 卷带包装)。

三、典型应用场景

  • 嵌入式控制系统(MCU/MPU)供电监测与可靠复位。
  • 工业自动化设备、仪器仪表中的系统监管。
  • 通信设备、路由器、网关等需高可靠开机与故障自恢复的场景。
  • 电池供电或电源切换场合的欠压保护与看门狗监护。

四、封装与引脚要点

  • 封装形式:SOT-23-5,五引脚小型封装适合空间受限的 PCB 布局。
  • 常见引脚功能:VCC、GND、RESET(复位输出,开漏)、MR(手动复位输入)、WDI(看门狗输入)。(具体引脚排列请参照器件数据手册以确保连线正确。)

五、使用建议与设计注意事项

  • 复位输出为开漏时,需要在 RESET 线上外接上拉电阻(常用 10 kΩ 范围,根据系统响应要求可在 4.7 kΩ~100 kΩ 之间调整)。
  • MR 引脚通常为低电平触发或高电平触发,接入外部按钮或 MCU 控制前,请确认触发极性与器件规格一致。
  • 看门狗定时器需要在 MCU 软件中定期喂狗(WDI),建议在系统关键任务完成周期内进行喂狗以避免误复位。
  • 在高噪声或电源切换场合,建议在 VCC 和 GND 之间加足够的去耦电容(例如 0.1 μF 陶瓷)以抑制瞬态波动,避免误触发复位。
  • 依据工作温度和应用需求,参考官方数据手册中的时序和电气特性参数,进行容差与裕量设计。

六、选型提示

若系统为 3.3 V 为主且需要简洁可靠的监控与看门狗功能,MAX823TEUK+T 提供了集成复位、手动复位与看门狗的完整解决方案。选型时请注意确认所需的复位输出类型(开漏或推挽变体)与引脚排列,及是否需要更长或更短的复位超时规格,必要时参考同系列器件以满足不同超时或阈值需求。

如需进一步的原理图接法、引脚图或电气时序信息,请参照 MAX823 官方数据手册或联系供应商索取完整资料。

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