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MICRONE ME2808A33M3G
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- MICRONE ME2808A33M3G
- Type
- MICRONE
- Minimum package
- 3000
Technical parameters
- Electronic Component
- MICRONE
- Electronic Component
- ME2808A33M3G
- Electronic Component
- 1
- Package
- SOT-23
- Electronic Component
- Supervisorand positions IC
- Electronic Component
- 0.037g
- Electronic Component
- 1
- Electronic Component
- BM0230857616
- Operating Temperature
- 40℃~+85℃@(TA)
- Operating Voltage
- 1.5V~18V
- ICType
- Voltage Detector
- Output Type
- Electronic Component
- Voltage
- 3.3V
- Static Current(Iq)
- 1.8uA
- Supervisor Voltage
- 1
- Reset Level
- Level
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
ME2808A33M3G 产品概述
一、主要特点
- 芯片类型：电压检测器（复位监控芯片）
- 输出类型：开漏（Open-drain），需外接上拉电阻
- 工作电压范围：1.5V ～ 18V，适配多种系统电源
- 复位有效电平：低电平有效（Vmon 低于阈值时输出拉低）
- 监控阈值：3.3V（固定阈值）
- 受监控电压通道：1 路
- 无手动复位、无看门狗功能
- 工作温度：-40℃ ～ +85℃（Ta）
- 静态电流（Iq）：典型 1.8 μA，适合电池供电与低功耗应用
- 封装：SOT-23
- 品牌：MICRONE（南京微盟）
二、产品简介
ME2808A33M3G 是一款用于系统电源电压监控的单路复位芯片，固定阈值为 3.3V，具备极低静态电流特性与宽工作电压范围。器件在被监控电压低于阈值时将输出低电平（通过开漏输出拉低），保证微控制器或其它数字器件在电压异常时被复位，避免上电或掉电时出现异常运行。
三、电气性能要点
- 当监控电压 Vmon < 3.3V 时，RESET 输出被拉低（复位有效）；当 Vmon 超过阈值且满足规定延时后，RESET 回到高阻态，通过外部上拉恢复高电平。
- 开漏输出可与不同电压域的系统兼容，上拉电阻应接到与被复位器件相同的逻辑电源上。
- 极低的静态电流（约 1.8 μA）使其非常适合长期运行且对能耗敏感的设备。
四、封装与布局建议
- SOT-23 小体积封装，方便贴片安装。建议将芯片靠近被监控的电源引脚放置，以减少寄生电阻与电磁干扰对检测精度的影响。
- VCC 端并联 0.1 μF 陶瓷旁路电容，靠近器件布局，以稳定电源并抑制瞬态噪声。
五、典型应用场景
- 低功耗电池供电设备（便携式终端、传感器节点、可穿戴设备）
- 以 3.3V 为核心电源电压的单片机复位保护（MCU、DSP、FPGA 辅助供电监控）
- 电源上电/下电时的上电复位、电源管理与电压监控电路
- 工业控制和通信设备中需要可靠复位的模块
六、典型接法与设计要点
- 输出为开漏，需在 RESET 引脚外接上拉电阻（常用 4.7k～100kΩ，典型值 10kΩ），上拉电压建议与 MCU 的 VDD 保持一致。
- 为延长复位时间可在 RESET 与地之间并联一个电容（软上电延时），但需评估上拉电阻与电容形成的 RC 时间常数与器件规格的一致性。
- 若系统存在较大噪声或瞬态干扰，考虑在 Vmon 输入端增加滤波与合理布局，确保检测准确性不被干扰误触发。
七、选型建议
- 若系统主电压为 3.3V 且需低功耗、单通道复位保护，ME2808A33M3G 为经济且可靠的选择。
- 若需要多路监控、可编程阈值或看门狗功能，应考虑功能更丰富的复位监测器作为替代。
- 在工业或极端温度环境下，请确认器件工作温度范围满足系统要求，并在实际电路中验证上电/掉电时序与复位恢复特性。
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