WMSIC Electronic Components

HGSEMI HG809SM3/TR HG809SM3

ModelHG809SM3/TR
PackageSOT-23-3
BrandHGSEMI
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
HGSEMI HG809SM3 / TR
Type
SOT-23-3
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
HGSEMI
Electronic Component
HG809SM3/TR
Electronic Component
1
Package
SOT-23-3
Electronic Component
Supervisorand positions IC
Electronic Component
0.031g
Electronic Component
1
Electronic Component
BM0265297013
Reset
200ms
Operating Temperature
40℃~+85℃
Operating Voltage
1V~6V
ICType
Voltage Detector
Voltage
2.93V
Static Current(Iq)
5.5uA
Supervisor Voltage
1

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

HG809SM3/TR 电压检测器产品概述

HG809SM3/TR是华冠半导体(HGSEMI)推出的低功耗微功耗电压检测器,核心用于电子系统的上电复位控制与电压异常监测,凭借精准阈值、极低静态电流、小封装及宽温适应性,成为便携设备、嵌入式系统及工业控制领域的优选器件。

一、产品定位与核心价值

该器件聚焦“低功耗+精准监测”两大核心需求,针对电池供电设备的续航痛点(如智能穿戴、蓝牙产品),以及嵌入式系统的稳定性需求(如MCU上电复位),实现“低成本、小体积、高性能”的平衡:

  • 低静态电流(5.5uA):大幅降低系统待机功耗,延长电池使用周期;
  • 精准阈值(2.93V):适配3V/3.3V主流系统,避免电压不足导致的程序异常;
  • 稳定超时(200ms):上电后快速输出复位信号,超时后稳定释放,确保系统可靠启动;
  • 工业级宽温(-40℃~+85℃):适应户外、工业等复杂环境温度变化。

二、关键性能参数详解

2.1 电压兼容范围

工作电压覆盖1V~6V,兼容从纽扣电池(1.5V)到5V电源的多种系统,适配3.3V、5V等主流嵌入式电源,以及1.8V低电压IoT设备的欠压监测。

2.2 精准阈值电压

阈值电压为2.93V(典型值),针对3V级系统设计:当系统电源电压降至2.93V以下时,复位输出激活;阈值精度满足工业级要求,温区内漂移极小,确保电压监测可靠性。

2.3 复位超时时间

复位超时为200ms(典型值),避免电源上电瞬态波动(如电压尖峰、跌落)导致的误复位,同时确保MCU晶振、外设稳定初始化后释放复位信号,防止程序跑飞。

2.4 静态电流特性

静态电流(Iq)仅5.5uA(典型值),是同类产品中的低功耗水平:若系统采用100mAh纽扣电池供电,仅该器件的静态功耗占比不足0.005%,适合长期待机的便携设备。

三、封装与物理特性

采用SOT-23-3封装(尺寸约1.6mm×1.0mm×0.8mm),超小体积适合高密度PCB设计(如智能手环、蓝牙耳机的紧凑主板);3引脚设计(通常为VDD、GND、RESET)简化电路布局,兼容回流焊、波峰焊工艺,易于自动化生产。

四、环境适应性

工作温度范围为**-40℃~+85℃**,覆盖工业级应用场景:

  • 户外设备(智能门锁、环境传感器):适应低温(-40℃)与高温(+85℃)环境;
  • 工业控制模块:满足车载、PLC等系统的宽温要求;
  • 温区内性能稳定:阈值电压、静态电流等参数无显著漂移,保证监测精度。

五、典型应用场景

5.1 便携电池设备

  • 智能手环、蓝牙耳机:低静态电流延长待机时间(100mAh电池可支持近2年待机监测);
  • 无线传感器节点:电压低于2.93V时触发低电报警,避免数据丢失。

5.2 嵌入式MCU系统

  • 单片机(STM32、51系列)上电复位:200ms超时确保晶振稳定,防止程序初始化异常;
  • 物联网网关:监测3.3V电源电压,欠压时重启系统,保障通信稳定。

5.3 工业控制与车载电子

  • PLC模块:宽温适应工业现场温度变化,电压异常时复位控制电路;
  • 车载仪表盘:监测12V转3.3V的电源,避免电压波动导致显示异常。

六、使用注意事项

  1. 阈值匹配:2.93V仅适配3V/3.3V系统,5V系统需选择对应阈值(如5.0V)的同系列型号;
  2. 电路设计:VDD引脚并联0.1uF陶瓷电容滤波电源噪声,RESET引脚串联10kΩ电阻保护MCU引脚;
  3. 工艺兼容:SOT-23-3封装适合表面贴装,需遵循华冠半导体推荐的回流焊温度曲线。

总结

HG809SM3/TR以“低功耗、精准监测、小封装、宽温适应”为核心优势,是替代进口同类器件(如TPL5010、SGM809)的高性价比国产方案,广泛应用于对功耗敏感、稳定性要求高的电子系统中。

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