WMSIC Electronic Components

SGMICRO SGM708-MYS8G/TR SGM708

ModelSGM708-MYS8G/TR
PackageSOIC-8
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
SGMICRO SGM708-MYS8G / TR
Type
SGMICRO
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
SGMICRO
Electronic Component
SGM708-MYS8G/TR
Electronic Component
1
Package
SOIC-8
Electronic Component
Supervisorand positions IC
Electronic Component
0.178g
Electronic Component
1
Features
positions
Electronic Component
BM0230805387
Reset
200ms
Operating Temperature
40℃~+85℃
Operating Voltage
1V~5.5V
ICType
Voltage Supervisor
Voltage
4.4V
Supervisor Voltage
1

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

SGM708-MYS8G/TR 产品概述

一、主要特性

SGM708-MYS8G/TR 为圣邦微(SGMICRO)推出的一款单路电压监控(电压监控器 / 复位IC),适用于对单一电源轨进行可靠复位与看护。主要参数如下:

  • 工作电压范围:1.0 V ~ 5.5 V;
  • 监控阈值(典型):4.4 V;
  • 复位保持时间(复位超时):200 ms(典型);
  • 复位方式:低电平有效 / 高电平有效(产品系列可选);
  • 输出类型:开漏(需外部上拉)与推挽(可驱动)两种形式可选;
  • 被监控电压路数:1 路;
  • 支持手动复位(MR)功能;
  • 工作温度:-40 ℃ ~ +85 ℃;
  • 封装:SOIC-8。

二、功能说明

SGM708 在供电轨电压下降到低于阈值(4.4 V,典型值)时,立即产生复位信号以保证系统进入确定状态;当电压回升并稳定超过阈值后,器件会在内部计时(200 ms)后释放复位信号,保证系统电源稳定后再启动。手动复位(MR)输入可用于外部按键或微控制器触发:将 MR 拉至触发电平时,器件强制输出复位并在释放后维持内部规定的复位时间,避免接触抖动导致的错误复位。

输出方面,开漏型输出便于与多片器件共用复位线(需外部上拉电阻);推挽型输出则可直接驱动后级逻辑,无需外部上拉。根据系统需要可选低电平有效或高电平有效版本。

三、典型引脚与封装

SGM708-MYS8G/TR 提供 SOIC-8 封装,便于标准 PCB 组装与散热管理。典型引脚包括电源(VCC)、地(GND)、复位输出(RESET/RESET#)、手动复位(MR)等。开漏输出版本的 RESET 需通过外部上拉电阻接到 VCC;推挽版本则直接驱动输出到高/低电平。

(具体引脚排列与电气参数请参见厂商数据手册以获得精确脚位图与绝对最大额定值。)

四、典型应用场景

  • MCU 单片机复位电路,保证上电与掉电过程的可靠复位;
  • 电源管理与系统监控,防止欠压或瞬态导致逻辑错误;
  • 多设备共享复位线的集中复位系统(搭配开漏输出);
  • 工业控制、车载电子与通信设备等对可靠性有严格要求的场合。

五、设计建议与注意事项

  • 若使用开漏输出,应在 PCB 上配置合适阻值的上拉电阻(常见 10kΩ ~ 100kΩ),根据上拉速度与功耗权衡选择阻值;
  • MR 输入若接按键,建议在按键端并联去抖电容或在上位 MCU 中做软件去抖,防止短脉冲造成多次复位;
  • 为保证监控精度与抗干扰,VCC 端建议靠近芯片放置旁路电容(例如 0.1 μF)并做好地层回流;
  • 关注热与功耗:在高温或噪声环境下,复位阈值与时序特性可能受影响,必要时做系统级冗余设计;
  • 选择低电平有效或高电平有效、开漏或推挽版本时,应根据系统复位线逻辑、电平兼容性与多器件拓扑决定。

六、规格摘要与选型提示

SGM708 系列以简单可靠的单路电压监控与 200 ms 的复位保持时间著称,适合需在供电恢复后给出足够上电延时的嵌入式系统。选型时确认:监控阈值(本型号典型 4.4 V)是否匹配系统电源等级;输出类型(开漏或推挽)与复位极性(低有效或高有效)与系统逻辑电平兼容;并核对工作温度与封装形式。更多电气特性、时序图与典型应用电路,请参考 SGMICRO 官方数据手册与评估资料。

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