WMSIC Electronic Components

SGMICRO SGM820B-3.0XTDB8G/TR SGM820B

ModelSGM820B-3.0XTDB8G/TR
PackageTDFN-8L(3x3)
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
SGMICRO SGM820B-3.0XTDB8G / TR
Type
SGMICRO
Minimum package
4000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
SGMICRO
Electronic Component
SGM820B-3.0XTDB8G/TR
Electronic Component
1
Package
TDFN-8L(3x3)
Electronic Component
Supervisorand positions IC
Electronic Component
0.116g
Electronic Component
1
Features
positions; Gate
Electronic Component
BM0252914405
Reset
200ms
Operating Temperature
40℃~+125℃@(TA)
Operating Voltage
1.6V~6.5V
ICType
Voltage Supervisor
Output Type
Electronic Component
Voltage
3.069V

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

SGM820B-3.0XTDB8G/TR 产品概述

一、产品简介

SGM820B-3.0XTDB8G/TR 是圣邦微(SGMICRO)推出的一款高精度电压监控器,集成看门狗定时器与手动复位输入,适用于对单一路电压进行可靠监控与系统复位管理。器件采用 TDFN-8L (3x3) 封装,工作电压范围宽(1.6V~6.5V),工作温度范围为 -40℃~+125℃(TA),可满足工业级应用需求。

二、关键规格

  • 芯片类型:电压监控器(Voltage Supervisor)
  • 受监控通道:1 路
  • 监控阈值:3.069V
  • 工作电压:1.6V ~ 6.5V
  • 输出类型:开漏(Open-drain),低电平有效复位
  • 复位超时(复位保持时间):典型 200 ms
  • 功能特性:手动复位输入、内置看门狗定时器
  • 封装:TDFN-8L (3×3)
  • 工作温度:-40℃ ~ +125℃(TA)

三、主要功能说明

  • 电压监控:当被监控电压低于 3.069V 阈值时,器件触发复位,保持系统在不可靠电源下处于复位状态,直到电源恢复至阈值以上并且去抖完成。
  • 低电平有效复位输出:开漏输出可与外部上拉电阻配合使用,便于实现与其他监控器的线与或(wired-OR)连接。
  • 手动复位(MR):外部信号可主动触发复位,适用于调试、外部保护或用户按键复位场景。
  • 看门狗定时器:监控软件运行状态,需定期“喂狗”;若看门狗未被复位,器件将触发系统复位以恢复到已知状态。
  • 复位宽度:在典型条件下,复位输出有效时间约为 200 ms,保证系统有足够时间完成初始化。

四、应用场景

  • 微控制器(MCU)及嵌入式系统供电管理与可靠性保护
  • 工业控制与通信设备的电源监视与系统复位
  • 消费电子与便携设备(如手持终端、无线模块)
  • 需软硬件协同的安全启动或容错设计(注意车规级应用需符合相应认证)

五、设计与布局建议

  • 将器件靠近被监控电源引脚布局,减少追踪电感与噪声耦合,确保准确检测电平。
  • 复位输出为开漏,请外接合适阻值上拉电阻并根据系统输入容限选择上拉电压。
  • 对手动复位(MR)、看门狗喂狗信号线添加适当去抖或滤波,防止误触发。
  • 在电源输入处使用旁路或去耦电容以提高瞬态响应能力并降低误触发风险。

六、封装与订购信息

  • 型号:SGM820B-3.0XTDB8G/TR
  • 品牌:SGMICRO(圣邦微)
  • 封装:TDFN-8L (3×3),适合空间受限的板级设计与自动贴装生产。

七、总结

SGM820B-3.0XTDB8G/TR 是一款功能集成度高、适用于工业级温度范围的电压监控器,结合开漏复位、手动复位输入与内置看门狗,能为各种嵌入式系统提供可靠的上电监测与运行看护。设计时应注意开漏输出的上拉电路、布局去耦和看门狗喂狗策略,以发挥器件最优的监控与复位性能。若需更详细的电气特性、时序图与典型应用电路,请参考厂方规格书与应用笔记。

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