WMSIC Electronic Components

GR MAX810L

ModelMAX810L
PackageSOT-23
BrandGR
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
GR MAX810L
Type
GR
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
GR
Electronic Component
MAX810L
Electronic Component
1
Package
SOT-23
Electronic Component
Supervisorand positions IC
Electronic Component
0.037g
Electronic Component
1
Electronic Component
BM0264555439
Reset
500ms
Operating Temperature
20℃~+60℃
Operating Voltage
1V~6V
ICType
Voltage Detector
Output Type
Electronic Component
Voltage
4.63V
Static Current(Iq)
2uA

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

MAX810L 电压检测器产品概述

一、产品定位与核心功能

MAX810L是一款专为嵌入式系统电源监控设计的低功耗电压检测器,核心作用是实时监测系统电源电压,当电压跌落至预设阈值以下时,输出有效复位信号——既保障系统上电过程的稳定初始化,也避免掉电时数据丢失或硬件异常。其推挽输出特性简化了电路设计,无需额外上拉/下拉电阻即可直接驱动MCU等核心芯片的复位引脚,是低功耗、空间受限应用的理想选择。

二、关键电气参数详解

(一)电压与电流特性

  • 工作电压范围:1V~6V,覆盖3.3V、5V等主流嵌入式电源,适配从智能手环到小型工业控制器的多种场景;
  • 静态电流(Iq):典型值仅2μA,远低于普通电压检测器(通常10μA以上),即使在电池供电待机状态下,也不会显著消耗电量;
  • 阈值电压:典型值4.63V,精准匹配5V电源的正常工作范围(5V电源波动允许±5%时,4.63V为合理复位阈值)。

(二)复位功能参数

  • 复位有效电平:高电平有效,输出高电平时表示系统处于复位状态,低电平时表示电源正常、系统可工作;
  • 复位超时时间:典型值500ms,确保系统上电后有足够时间完成寄存器初始化、外设配置(如串口、SPI),避免因上电时序差异导致的误复位;
  • 监控通道数:单通道设计,专注于单电源的精准监控,避免多通道干扰,提升检测可靠性。

三、封装与环境适应性

(一)封装形式

采用SOT-23小型表面贴装封装,尺寸约2.9mm×1.6mm×1.1mm,体积仅为传统DIP封装的1/5,可有效节省PCB布局空间,适合高密度集成的电子模块(如传感器节点、无线通信模块)。

(二)工作环境

  • 温度范围:-20℃~+60℃,满足消费电子(智能家居设备)、工业辅助控制(小型电机控制器)的环境要求,常规室内/户外场景下可稳定工作;
  • 抗干扰性:内置简单滤波电路,可抑制电源线上的瞬态噪声(如开关电源纹波),避免电磁干扰导致的误触发复位。

四、典型应用场景

(一)嵌入式系统复位监控

替代传统RC复位电路(受温度、电容老化影响大),例如:

  • 智能家居网关的主MCU上电时,MAX810L监控5V电源,确保电压稳定后才释放复位,避免程序跑飞;
  • 工业PLC扩展模块中,监控3.3V电源,保障IO口初始化正常。

(二)5V电源系统保护

在小型工业控制器、车载电子辅助设备(行车记录仪供电模块)中,5V电源是核心来源,MAX810L的4.63V阈值可精准检测电压波动:当电压不足时触发复位,防止设备运算错误或硬件损坏。

(三)低功耗便携设备

智能手环、蓝牙耳机等电池供电产品对静态电流敏感,MAX810L的2μA静态电流可忽略不计,配合小体积封装,轻松集成到电源管理电路中,不影响电池续航(如提升手环待机时间10%以上)。

五、产品优势总结

  1. 低功耗适配电池场景:2μA静态电流延长便携设备待机时间;
  2. 精准监控5V电源:4.63V典型阈值检测误差≤1%,避免误触发;
  3. 设计简化降本:推挽输出无需额外电阻,减少BOM成本与PCB空间;
  4. 稳定复位防误判:500ms超时确保上电初始化完成,单通道设计降低干扰;
  5. 小体积高密度集成:SOT-23封装适合小型化产品(如TWS耳机充电盒)。

六、应用注意事项

  1. 电源输入限制:避免输入电压超过6V,若需监控更高电压(如12V),需通过分压电路(如10kΩ+20kΩ)处理;
  2. 输出电平匹配:若MCU复位引脚为低电平有效,需在MAX810L输出端加反向器(如三极管)转换;
  3. 温度场景评估:若应用于-20℃以下或+60℃以上环境,需提前测试芯片性能(如阈值偏移);
  4. 滤波建议:电源输入端并联10μF电解电容+0.1μF陶瓷电容,进一步抑制噪声干扰。

MAX810L凭借平衡的性能与成本优势,在消费电子、工业控制、便携设备等领域广泛应用,是嵌入式系统电源监控的高性价比选择。

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