WMSIC Electronic Components

MICRONE ME2808A27M3G

ModelME2808A27M3G
PackageSOT-23
BrandMICRONE
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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
MICRONE ME2808A27M3G
Type
MICRONE
Minimum package
3000 编带

Technical parameters

Electronic Component
Electronic Component
Electronic Component
MICRONE
Electronic Component
ME2808A27M3G
Electronic Component
1
Package
SOT-23
Electronic Component
Supervisorand positions IC
Electronic Component
0.037g
Electronic Component
1
Electronic Component
BM0229920301
Operating Temperature
40℃~+85℃@(TA)
Operating Voltage
1.5V~18V
ICType
Voltage Detector
Output Type
Electronic Component
Voltage
2.7V
Static Current(Iq)
1.8uA
Supervisor Voltage
1

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

ME2808A27M3G 产品概述

一、产品简介

ME2808A27M3G 是南京微盟(MICRONE)推出的一款单通道电压检测器(Voltage Detector),采用 SOT-23 封装。器件对单一路被监控电压进行阈值检测,当电源电压低于设定阈值 2.7V 时输出有效复位信号(低电平有效);输出为开漏结构,静态工作电流极低(Iq = 1.8μA),工作电压范围宽(1.5V ~ 18V),工作温度范围 -40℃~+85℃(Ta)。

二、主要特性

  • 输出类型:开漏(Open-drain),便于与外部拉高或总线共享。
  • 复位极性:低电平有效(低电平表示复位激活)。
  • 监测阈值:2.7V(固定阈值,单通道)。
  • 工作电压:1.5V 至 18V,兼容多种电源系统。
  • 静态电流:典型 1.8μA,适合低功耗应用。
  • 无看门狗及手动复位引脚,功能专注于电源监测与复位输出。
  • 封装:SOT-23(小尺寸、便于表面贴装)。

三、功能描述与使用要点

ME2808A27M3G 在被监控电压(VCC)低于 2.7V 时将 RESET 引脚拉至低电平,正常供电时输出释放(开漏浮空),需外接上拉电阻至系统逻辑电平。常见上拉电阻值为 10kΩ 至 100kΩ,具体取值依据上拉电源与所需上升时间决定。器件本身不含复位延时或看门狗功能,如需更长的复位保持时间,可在复位线上加 RC 滤波或使用独立复位延时电路。

典型电路建议:

  • RESET 引脚通过 10kΩ 与系统 3.3V 或 5V 上拉。
  • VCC 端并联 0.1μF 旁路电容,靠近器件引脚放置以抑制电源干扰。
  • 若 RESET 与多个器件共享,注意上拉能力与总线电容。

四、应用场景

  • 单片机、微控制器(MCU)复位保护。
  • 电源上电/掉电检测与系统复位管理。
  • 工业控制、仪表、通信设备中的电源监督。
  • 低功耗便携设备、消费类电子的电压监控。

五、封装与选型建议

ME2808A27M3G 采用 SOT-23 小型封装,通常为三引脚布局(VCC、GND、RESET)。在实际设计中请参照官方数据手册确认引脚定义和封装尺寸,便于 PCB 布局与焊接。选型时注意阈值(2.7V)是否匹配系统电源等级及上电/欠压保护要求。

六、可靠性与设计注意

  • 建议在 VCC 引脚使用旁路电容(典型 0.1μF)以保证稳定检测。
  • RESET 为开漏输出,需可靠上拉并考虑上拉源在掉电过程中的表现。
  • 在高噪声或长复位线路场合,增加小 RC 滤波可避免误复位。
  • 参考资料中查看器件的最大应力、回流焊接温度与 ESD 等级以满足制造与可靠性要求。

七、总结(设计清单)

  • 确认系统电源是否需 2.7V 阈值监测;
  • 设计 10kΩ 左右上拉并加 0.1μF 旁路电容;
  • 若需延长复位时间,外接 RC 或使用延时器;
  • 查阅数据手册确认引脚和封装细节以完成 PCB 布局。

如需器件原厂数据手册、引脚图或典型应用电路图,可进一步提供,我会协助核对参数并给出元件选型与布局建议。

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