WMSIC Electronic Components

CONSONANCE CN809M

ModelCN809M
PackageSOT-23-3
BrandCONSONANCE
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
CONSONANCE CN809M
Type
CONSONANCE
Minimum package
3000 编带

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CONSONANCE
Electronic Component
CN809M
Electronic Component
1
Package
SOT-23-3
Electronic Component
Supervisorand positions IC
Electronic Component
0.02g
Electronic Component
1
Electronic Component
BM0257674204
Reset
140ms
Operating Temperature
40℃~+85℃
Operating Voltage
1.15V~5.5V
ICType
Voltage Supervisor
Voltage
4.38V
Static Current(Iq)
3.2uA
Supervisor Voltage
1

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

CN809M 产品概述

一、概述

CN809M 是由 CONSONANCE(上海如韵)推出的一款低功耗电压监控器(复位 IC),采用 SOT-23-3 封装。器件工作电压范围宽(1.15V 至 5.5V),静态电流仅 3.2µA,适合电池供电和低功耗系统。复位输出为低电平有效,典型阈值电压为 4.38V(单路监控),复位超时约 140ms,工作温度范围 -40℃~+85℃。

二、主要特性

  • 工作电压:1.15V ~ 5.5V,覆盖常见 1.2V/1.8V/3.3V/5V 系统
  • 监控通道:单路电压监控
  • 阈值电压(Typ):4.38V,适用于 5V 类系统的电压失效检测
  • 复位极性:低电平有效(复位有效电平为低)
  • 复位超时:约 140ms,保证上电和电压抖动恢复后的稳定复位时序
  • 静态电流(Iq):3.2µA,极低待机功耗
  • 无手动复位与看门狗功能,结构精简、体积小
  • 封装:SOT-23-3,便于表贴装配
  • 工作温度:-40℃ ~ +85℃,适合工业级应用

三、典型功能与工作行为

当被监控电压低于阈值(4.38V)时,CN809M 将输出低电平以保持系统在复位态;当电压回升并超过阈值且稳定后,器件继续保持复位时间约 140ms,随后释放复位,确保系统稳定启动。器件不含看门狗定时器及手动复位按钮接口,如需这些功能可在外部电路中补充。

四、应用场景

  • 单电池或多电压系统的上电复位与欠压保护
  • 微控制器(MCU)、数字电路和电源管理芯片的电压监控
  • 便携式与电池供电设备、仪表与家电控制模块
  • 工业控制与通信设备(在 -40℃ 至 +85℃ 温度范围内可靠工作)

五、布局与使用建议

  • VCC 端使用 0.1µF 陶瓷旁路电容靠近芯片放置,减小电源噪声对检测的影响
  • RST 接 MCU 复位脚;若输出为开漏兼容场景,请使用上拉电阻到 VCC(常见 10k)
  • 将芯片放置靠近受监控电源引脚,缩短走线并保证良好接地平面,减少干扰导致的虚警
  • 若系统需要手动复位或看门狗,建议外加独立按键或专用看门狗器件实现

六、采购与资料

型号:CN809M
品牌:CONSONANCE(上海如韵)
封装:SOT-23-3
在选型或批量采购前,建议下载并参阅器件完整数据手册,确认阈值容差、输出类型(开漏/推挽)、极限参数与封装标识,以满足最终系统设计需求。

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