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CONSONANCE CN809T
Configuration
1 options
Configuration
24+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- CONSONANCE CN809T
- Type
- CONSONANCE
- Minimum package
- 3000 编带
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- CONSONANCE
- Electronic Component
- CN809T
- Electronic Component
- 1
- Package
- SOT-23-3
- Electronic Component
- Supervisorand positions IC
- Electronic Component
- 0.02g
- Electronic Component
- 1
- Electronic Component
- BM0257674205
- Reset
- 140ms
- Operating Temperature
- 40℃~+85℃
- Operating Voltage
- 1.15V~5.5V
- ICType
- Voltage Supervisor
- Output Type
- Electronic Component
- Voltage
- 3.08V
- Static Current(Iq)
- 3.2uA
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
CN809T 产品概述
一、产品简介
CN809T 是上海如韵（CONSONANCE）推出的一款低功耗电压监控器/复位控制器，封装为 SOT-23-3。器件用于对单路电源进行欠压监测，当被监控电压低于阈值时输出低电平复位信号以保证系统可靠复位。工作电压范围宽（1.15V ~ 5.5V），适用于各类电池供电与直流供电的嵌入式系统和微控制器平台。
二、主要特性
- 监控通道：1 路电压监控
- 阈值电压：3.08V（阈值等级）
- 工作电压范围：1.15V ～ 5.5V
- 复位有效电平：低电平有效
- 复位超时：约 140 ms（上电或欠压恢复后的保持时间）
- 手动复位：无外部手动复位引脚
- 看门狗：无看门狗功能
- 静态电流（Iq）：典型 3.2 μA，适合低功耗应用
- 工作温度：-40 ℃ ～ +85 ℃
- 封装形式：SOT-23-3
三、引脚与封装（SOT-23-3）
- VDD / VCC：供电输入，连接至被监控电源。建议在 VCC 旁并联 0.1 μF 旁路电容以抑制瞬态噪声。
- GND：地参考。
- RESET：复位输出，为低电平有效的复位信号（具体为推挽或开漏输出形式，请在设计时参考完整器件资料书以确认输出类型）。外部可加上拉电阻（建议 10 kΩ 量级）与 MCU 的复位输入接口连接。
四、典型应用场景
- 电池供电设备（如便携式仪表、遥测模块、可穿戴设备）——低静态电流延长电池寿命。
- MCU/数字电路上电复位与欠压保护，避免上电瞬态或电压下跌导致运行异常。
- 电源管理与电源顺序控制，在多路电源系统中作为单路监控器使用。
- 工业与消费电子中需要简单可靠复位功能的场合。
五、设计与使用注意事项
- 旁路电容：建议在 VCC 与 GND 之间放置 0.01–0.1 μF 陶瓷电容，减少噪声与瞬态触发概率。
- 上拉电阻：若复位输出为开漏/开集电极结构，请在复位线上串联或直接并联上拉电阻（通常 10 kΩ），保证复位释放时电平到达有效高电平。
- 阈值与容差：3.08V 为器件阈值标称值，实际设计中应考虑器件容差、温度漂移及系统额外降压余量。
- 电源瞬态：若系统存在较大上电冲击或纹波，建议增加软启动或滤波措施，避免在稳定前多次触发复位。
- 环境与布局：在高噪声环境下优化接地回路，靠近 VCC 引脚布旁路电容以获得最佳性能。
六、优势与总结
CN809T 以极低静态电流（3.2 μA）和宽工作电压范围为主要优势，适合对功耗敏感的嵌入式与电池供电系统。140 ms 的复位保持时间能有效保证系统在电源恢复后的稳定启动。SOT-23-3 小封装利于产品小型化与成本控制。选用 CN809T 可为系统提供简单、可靠且经济的电源监控与复位保护。有关复位输出类型、电气特性曲线及详细引脚定义，请在最终设计前参考芯片的完整数据手册。
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