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ADI/LINEAR MAX705ESA+T MAX705ESA
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- ADI(Analog Devices) / LINEAR MAX705ESA+T
- Type
- ADI/LINEAR
- Minimum package
- 2500 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- ADI(Analog Devices) / LINEAR
- Electronic Component
- MAX705ESA+T
- Electronic Component
- 1
- Package
- SOIC-8
- Electronic Component
- Supervisorand positions IC
- Electronic Component
- 0.213g
- Electronic Component
- 1
- Features
- positions; Gate
- Electronic Component
- BM0258831962
- Reset
- 200ms
- Operating Temperature
- 40℃~+85℃@(TA)
- Operating Voltage
- 1.2V~5.5V
- ICType
- Voltage Supervisor
- Output Type
- Electronic Component
- Voltage
- 4.65V
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
MAX705ESA+T 产品概述
一、简介
MAX705ESA+T 是 ADI/Linear 系列针对低成本电源监控与复位管理的器件，适用于对单路电源进行可靠监控并对微处理器或逻辑系统提供强制复位与看门狗保护。该器件工作电压范围宽（1.2V～5.5V），输出为推挽型，复位为低电平有效，设计简单且易于在各种嵌入式与电源敏感场合使用。
二、主要规格要点
- 芯片类型：电压监控器（电源复位管理）
- 输出类型：推挽输出（推/挽驱动）
- 工作电压：1.2V ～ 5.5V
- 监控阈值：4.65V（典型监控点，超过/低于阈值触发复位）
- 受监控通道：1 路
- 复位有效电平：低电平有效（主动拉低复位信号）
- 手动复位：支持（外部手动触发）
- 看门狗定时器：集成（防止软件死锁）
- 复位超时：200 ms（故障解除后复位维持时间）
- 工作温度：-40℃ ～ +85℃（Ta）
- 封装：SOIC-8
- 品牌：ADI（Analog Devices / Linear Technology）
三、功能说明
MAX705ESA+T 在电源上电、瞬态掉电或低于阈值时，会将复位引脚拉低以保证被监控系统处于已知安全状态；当电源稳定且高于阈值时，器件在内部定时后释放复位。手动复位引脚允许外部按键或控制器强制产生复位脉冲。看门狗功能需要被监控的主机周期性喂狗（切换看门狗输入），若超时未喂狗，则器件同样产生低电平复位，复位持续约200 ms，从而实现软件故障自动恢复。
四、典型应用场景
- MCU/MPU 复位与看门狗监控
- 电池供电与便携设备的电源管理
- 工业控制与嵌入式系统的安全上电/掉电保护
- 低成本系统级电源监控与故障恢复方案
五、设计要点与建议
- 在VCC附近放置合适的去耦电容（例如0.1 μF）以抑制电源瞬态，确保器件准确检测电压。
- 手动复位（MR）通常需要通过上拉电阻连接到VCC，外部按键接地以生成有效低电平。
- 看门狗输入应由主机定期切换，避免因抖动或电磁干扰误触发；必要时在信号线上做抗干扰设计。
- 复位输出为推挽结构，能直接驱动大多数逻辑输入，但若用于长线或高噪声环境，应考虑缓冲或滤波。
- PCB 布局时，复位与时钟等关键信号应尽量缩短走线并避开大电流回路，保证复位时序的稳定性。
六、封装与选型提示
MAX705ESA+T 提供 SOIC-8 封装，便于在中小批量产品中手工或机器化贴装。选型时请核对工作温度与阈值是否满足系统需求，并注意订购编号以确保所需的卷带/托盘包装和温度等级。对于更高温度或额外功能需求，可比对同系列或其他厂商的替代型号以确定最佳方案。
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