WMSIC Electronic Components

HGSEMI LM339N

ModelLM339N
PackageDIP-14
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
HGSEMI LM339N
Type
HGSEMI
Minimum package
1000 盒

Technical parameters

Electronic Component
Electronic Component
Electronic Component
HGSEMI
Electronic Component
LM339N
Electronic Component
1
Package
DIP-14
Electronic Component
Comparator
Electronic Component
1.677g
Power Supply
3V~32V
Electronic Component
1
Electronic Component
BM0227687397
Operating Temperature
0℃~+70℃
Comparator
Electronic Component
Output
TTL;CMOS
Static Current(Iq)
800uA
(tpd)
1.3us
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.

LM339N 四路比较器(HGSEMI 华冠,DIP-14)产品概述

一、产品简介

LM339N 是一款四路电压比较器,华冠(HGSEMI)生产的该型号采用 DIP-14 封装,适合通用型测量与控制电路。器件设计为开集电极输出,兼容 TTL 与 CMOS 逻辑电平,通过简单外部元件即可完成门限检测、窗口比较、欠压保护等功能。

二、主要特性

  • 比较器数量:四路(四个独立通道)
  • 电源范围:单电源 3V ~ 32V;双电源(Vee ~ Vcc)1.5V ~ 16V;或 -16V ~ -1.5V
  • 最大电源宽度(Vdd - Vss):36V
  • 传播延迟(tpd):1.3 μs(典型)
  • 输入失调电压(Vos):2 mV(典型)
  • 输入偏置电流(Ib):25 nA
  • 输入失调电流(Ios):5 nA
  • 静态电流(Iq):800 μA(器件静态工作电流)
  • 输出模式:开集电极,兼容 TTL / CMOS 负载
  • 工作温度:0 ℃ ~ +70 ℃
  • 封装:DIP-14(通孔)

三、电气性能说明

LM339N 在低输入偏置和低失调电压方面表现良好,适合对阈值有一定精度要求的比较场合。开集电极输出需要外接上拉电阻,以决定输出电平与响应速度;上拉电阻越小,开关速度越快但功耗和负载增加。器件静态电流约 800 μA,可用于低功耗设计的权衡评估。注意总电源电压不能超过 36V,单/双电源工作方式灵活选择。

四、典型应用场景

  • 电平检测与门限比较(如电池电压监测)
  • PWM 与脉宽调制比较基准电路
  • 窗口比较与多路阈值检测
  • A/D 转换器前端比较器或参考电平比较
  • 工业控制、温度/压力报警等模拟信号监测场合

五、封装与实用提示

DIP-14 通孔封装便于面包板或 PCB 手工搭建与调试,适合实验与小批量生产。使用时需注意:

  • 输出为开集电极,必须加上拉电阻;对直接驱动 TTL/CMOS 输入可选 4.7k~10k Ω。
  • 输入端需避免超过电源轨的电压(必要时加限流或钳位保护)。
  • 对快速边沿或抗干扰要求高的场景,应在输入端或反馈回路中加滞回(正反馈)以防抖动。
  • 工作温度范围为 0 ~ 70 ℃,工业级应用请确认温度余量或选择更高等级器件。

六、设计建议

由于器件传播延迟约 1.3 μs,不适合要求亚微秒级响应的高速比较。对于低速、低功耗且要求多路比较的应用,LM339N 提供了成本与性能的平衡。布线时注意模拟地与数字地分离,减少共地噪声对比较点的影响。总之,合理选择上拉阻值、必要的输入保护和滞回设计,能最大化 LM339N 在门限检测与监控电路中的可靠性与稳定性。

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