WMSIC Electronic Components

SGMICRO SGM823A-YXN5G/TR SGM823A

ModelSGM823A-YXN5G/TR
PackageSOT-23-5
BrandSGMICRO
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 24+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
SGMICRO SGM823A-YXN5G / TR
Type
SGMICRO
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
SGMICRO
Electronic Component
SGM823A-YXN5G/TR
Electronic Component
1
Package
SOT-23-5
Electronic Component
Supervisorand positions IC
Electronic Component
0.041g
Electronic Component
1
Features
positions; Gate
Electronic Component
BM0256925058
Reset
200ms
Operating Temperature
40℃~+125℃
Operating Voltage
2.1V~2.75V
ICType
Voltage Supervisor
Output Type
Electronic Component
Voltage
2.19V

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

SGM823A-YXN5G/TR 产品概述

SGM823A-YXN5G/TR 是圣邦微(SGMICRO)推出的一款低电压监控复位IC,适用于电池供电与便携类系统,集电压监测、手动复位和看门狗功能于一体,封装为紧凑的 SOT-23-5,易于在空间受限的电路板上布局。

一、主要功能与规格亮点

  • 芯片类型:电压监控器(复位IC);监控通道数:1 路
  • 工作电压范围:2.1 V ~ 2.75 V,适配低压系统设计
  • 监测阈值(典型值):2.19 V;当电源电压低于阈值时输出复位信号
  • 复位输出类型:推挽(Push-Pull),可直接驱动后级逻辑电平,无需外部上拉电阻
  • 复位有效电平:低电平有效(Active Low RESET)
  • 手动复位(MR)输入:支持外部按键/控制强制产生复位
  • 看门狗定时器:内置看门狗功能,需周期性喂狗以避免看门狗复位
  • 复位超时时间:约 200 ms(复位脉宽/超时典型值)
  • 工作温度范围:-40 ℃ ~ +125 ℃
  • 封装:SOT-23-5,适合小尺寸应用

二、功能描述与工作行为

SGM823A 在电源上电或电压低于阈值时自动将 RESET 拉低,保持约 200 ms 的复位时长,确保后端微控制器或数字电路可靠复位;当电源稳定且超过阈值后,芯片释放复位。手动复位引脚可被外部按键或控制器拉低以触发复位;看门狗功能在设备运行时提供运行状态监测,若未在规定时间内喂狗,芯片产生复位以实现故障恢复。

三、典型应用场景

  • 电池供电的便携设备、手持终端
  • 低压微控制器系统的电源管理与看门狗保护
  • 工业控制模块、通信设备的启动与异常恢复
  • 需要紧凑封装与低功耗监控的嵌入式系统

四、设计建议与注意事项

  • VCC 端推荐并联 0.1 μF 的旁路电容,芯片应靠近被监控的器件布置以减少寄生阻抗影响阈值检测精度。
  • 由于阈值为 2.19 V,设计时需保证系统工作余量,避免在电源波动时误触发复位。
  • 手动复位(MR)若长期未使用,建议通过上拉电阻拉高(若芯片内部无上拉),并对外部按键加入去抖处理。
  • 看门狗功能使用时,应严格按照时序要求定期喂狗,避免由于喂狗间隔不当引起不期望的复位。
  • 推挽输出可以直接驱动后级输入,但若需实现总线共享,应注意电平兼容和输出冲突保护。

SGM823A-YXN5G/TR 以其低压工作、集成复位与看门狗、推挽输出和工业级温度范围,适合对可靠性与尺寸有较高要求的低压嵌入式系统。若需更详细的引脚定义、时序图和典型电路,请参考厂商器件数据手册。

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