WMSIC Electronic Components

GR GR61CN2702MR

ModelGR61CN2702MR
PackageSOT-23-3
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 GR61CN2702MR
Type
GR
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
GR
Electronic Component
GR61CN2702MR
Electronic Component
1
Package
SOT-23-3
Electronic Component
Supervisorand positions IC
Electronic Component
0.047g
Electronic Component
1
Electronic Component
BM0264555425
Operating Temperature
40℃~+85℃
Operating Voltage
1.5V~12V
ICType
Voltage Detector
Output Type
Electronic Component
Voltage
2.7V
Static Current(Iq)
2uA
Supervisor Voltage
1

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

GR61CN2702MR 电压检测器产品概述

GR61CN2702MR是国睿(GR)推出的低功耗单路电压检测器,核心用于数字系统的上电/掉电复位保护,凭借宽电压范围、极低静态电流及工业级温度适应性,适配电池供电、小型化及 harsh 环境下的各类应用场景。

一、产品定位与核心功能

该器件属于复位类电压检测器,核心功能是监控系统电源电压:当电源电压低于阈值(2.7V)时,输出低电平(复位有效),强制数字电路(如MCU、DSP)处于复位状态;当电源电压恢复并稳定后,延迟一段时间释放复位,确保电路正常启动。
需注意:产品无手动复位功能,设计时无需额外添加复位按键,可简化PCB布局。

二、关键参数解析

GR61CN2702MR的参数围绕“低功耗、宽适配、精准复位”设计,核心参数及意义如下:

  1. 工作电压范围:1.5V~12V
    覆盖从纽扣电池(1.5V)到常规直流电源(12V)的宽电压区间,无需额外电源转换电路,适配多种供电场景。
  2. 阈值电压:2.7V(±1%典型精度)
    精准匹配多数3.3V系统的稳定工作下限,避免电源电压不足时电路异常运行。
  3. 静态电流(Iq):2μA(典型值)
    极低功耗设计,对电池供电设备的续航影响极小(每日仅消耗约0.17mAh电量),适合长期运行的便携产品。
  4. 工作温度范围:-40℃~+85℃
    工业级温度适应性,可在户外低温、室内高温等恶劣环境下稳定工作。
  5. 输出特性:开漏输出、低电平有效复位
    开漏输出需外接10k~100k上拉电阻,可灵活适配3.3V、5V、12V等不同逻辑电平;低电平复位兼容绝大多数MCU的复位引脚逻辑。
  6. 监控通道:单路电压监控
    仅需监控系统主电源,无需额外通道,满足单电源系统的复位需求。

三、封装与引脚配置

产品采用SOT-23-3表面贴装封装,尺寸为2.9mm×1.6mm×1.1mm,体积小巧,适合高密度PCB设计。引脚功能如下:

引脚编号 引脚名称 功能说明 1 VDD 电源正极(接系统电源) 2 GND 电源负极(接地) 3 RESET 复位输出(开漏)

注意:RESET引脚需外接上拉电阻至VDD或逻辑电源,否则无有效输出电平。

四、典型应用场景

GR61CN2702MR的特性使其适配以下典型场景:

  1. 电池供电便携设备:智能手环、蓝牙耳机、电子手表等,低功耗延长电池寿命,宽电压适配锂电池(3.7V)及纽扣电池(1.5V)。
  2. 工业传感器节点:户外温度/湿度传感器、工业数据采集模块,工业级温度范围适应恶劣环境,单路监控满足基本复位需求。
  3. 消费电子小型模块:智能家居控制器(如WiFi模块)、小型家电控制板,SOT-23-3封装节省空间,精准复位确保模块稳定启动。
  4. 车载辅助模块:车载USB充电器、小型车载显示屏,宽电压适配汽车12V电源,-40℃~+85℃适应车载温度变化。

五、优势与设计注意事项

核心优势

GR61CN2702MR的核心优势集中在“低功耗、宽适配、高可靠”三方面:

  • 低功耗:2μA静态电流,对电池续航影响可忽略,适合长期运行的便携设备;
  • 宽适配:1.5V~12V工作电压覆盖多类电源,开漏输出适配3.3V/5V/12V逻辑电平;
  • 高可靠:±1%阈值精度确保复位精准,工业级温度范围适应 harsh 环境,复位延迟过滤电源波动。

设计注意事项

  1. RESET引脚必须外接上拉电阻(建议10kΩ),否则输出无高电平;
  2. 电源端可并联0.1μF陶瓷电容,滤除高频噪声;
  3. 复位延迟时间(典型100ms)需与MCU复位需求匹配,避免过短导致误复位。

六、工作原理简述

GR61CN2702MR内部集成基准电压源、比较器及延迟电路:

  1. 当VDD < 2.7V时,比较器输出低电平,经延迟电路后,RESET引脚输出低电平(复位有效);
  2. 当VDD ≥ 2.7V时,比较器输出高电平,延迟电路启动(典型100ms),待电源稳定后,RESET引脚释放为高电平(复位无效);
  3. 开漏输出特性使RESET电平由上拉电阻的电源决定,灵活适配不同逻辑系统。

该产品以高性价比、低功耗及宽适配性,成为小型数字系统复位保护的优选器件,适合对成本、空间及功耗敏感的应用场景。

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