WMSIC Electronic Components

EG EG393

ModelEG393
PackageSOP-8
BrandEG
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
EG EG393
Type
EG
Minimum package
4000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
EG
Electronic Component
EG393
Electronic Component
1
Package
SOP-8
Electronic Component
Comparator
Electronic Component
0.201g
Power Supply
2V~36V
Electronic Component
1
Electronic Component
BM0257860908
Operating Temperature
0℃~+70℃
Comparator
Electronic Component
Output
TTL;CMOS
Output Type
Electronic Component
Static Current(Iq)
400uA
Electronic Component
Electronic Component

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

EG393 产品概述

一、产品简介

EG393 是屹晶微(EG)推出的一款双路比较器,封装为 SOP-8,工作温度范围为 0℃ ~ +70℃,适合工业级及商用电子设计。器件采用开集电极输出结构,兼容 TTL 与 CMOS 电平,通过合理的输出上拉即可直接驱动后端逻辑或作为开路开关使用。器件在静态工作条件下功耗低,单芯片静态电流典型值约 400 µA,适合电池供电与低功耗控制场景。

二、主要电气参数(典型/关键)

  • 比较器数:双路
  • 输入失调电压 Vos:1 mV(典型)
  • 输入偏置电流 Ib:25 nA(典型)
  • 输入失调电流 Ios:5 nA(典型)
  • 输出类型:开集电极(Open-collector)
  • 输出兼容性:TTL / CMOS(通过上拉电阻实现)
  • 静态电流 Iq:约 400 µA(芯片总耗电,典型)
  • 单电源工作范围:2 V ~ 36 V
  • 双电源工作范围:支持 ±1 V ~ ±18 V(即总电源宽度最高可达 36 V)
  • 封装:SOP-8
  • 工作温度:0℃ ~ +70℃

三、特点与优势

  • 低失调电压(Vos ≈ 1 mV),在需要精确比较的小信号场合能提供较好的门限稳定性,减少外部补偿件需求。
  • 低输入偏置与失调电流(Ib≈25 nA,Ios≈5 nA),适合与高阻抗传感器或分压网络直接接口,降低误差。
  • 宽电源电压范围(2 V ~ 36 V),适应多种供电方案,支持单电源与双电源供电,便于系统集成。
  • 开集电极输出可以灵活选择上拉电压与逻辑电平,适配不同逻辑家族或外部驱动器件。
  • SOP-8 封装便于手工焊接与批量生产,便于替换及电路板布局。

四、典型应用场景

  • 电压/电流阈值检测、欠压/过压保护与电源监控
  • 传感器接口:温度、光电、压力等模拟信号比较与开关生成
  • 脉冲/波形整形、电平转换与施密特-触发前级(外加滞后网络)
  • 电池管理与充放电控制、过流保护与门限报警
  • 工控与消费电子中的参考比较、窗口比较器设计

五、设计与使用建议

  • 由于输出为开集电极,需在输出端接上拉电阻以产生逻辑高。上拉电阻阻值建议根据所需速度与电源电压选定:较小阻值(如 1kΩ~4.7kΩ)可得到更快的上升沿与更强驱动,较大阻值(如 10kΩ)可降低静态功耗。
  • 若系统对噪声或抖动敏感,建议在反馈回路中加入适量正反馈(施加滞后),以实现干净的开关跳变并避免门槛抖动。
  • 电源去耦:在芯片电源引脚附近放置 0.1 µF 陶瓷电容并接地,抑制瞬态与 EMI,提升比较器稳定性。
  • 输入端不要超过电源电压范围,避免将输入引脚拉出供电轨,否则可能造成不正常的工作或损坏。若需要检测高压信号,请采用分压或隔离措施。
  • 在高速或频繁开关应用中,注意上拉电阻与输入容性负载共同影响上升时间,必要时降低阻值或使用缓冲器。

六、封装与订购信息

  • 封装形式:SOP-8,适合 DIP 转换座或表面贴装生产工艺。
  • 品牌:EG(屹晶微)
  • 建议在设计器件替换或采购时注明型号 EG393、封装 SOP-8 与温度等级(0℃~+70℃)以确保一致性。

总结:EG393 以其低失调、低漏电和宽电源范围的组合,适合多种中低速、低功耗的比较场合,特别适用于传感器接口、电源监控与门限检测等应用。在实际设计中注意上拉电阻选择、电源去耦与必要的输入保护,即可发挥其良好的性能。

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