WMSIC Electronic Components

HGSEMI LM339AM/TR LM339AM

ModelLM339AM/TR
PackageSOP-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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
HGSEMI LM339AM / TR
Type
HGSEMI
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
HGSEMI
Electronic Component
LM339AM/TR
Electronic Component
1
Package
SOP-14
Electronic Component
Comparator
Electronic Component
0.382g
Power Supply
3V~32V
Electronic Component
1
Electronic Component
BM0264336353
Operating Temperature
40℃~+125℃
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.

LM339AM/TR 产品概述

一、产品简介

LM339AM/TR(品牌:HGSEMI/华冠)是一款四路比较器集成电路,封装为 SOP-14,TR 表示卷带(Tape & Reel)便于 SMT 贴装生产。器件设计适用于消费类与工业类电子产品中的电平检测、低电平探测及模拟/数字接口转换等场合。

二、主要电气参数

  • 比较器通道:4 路
  • 输入失调电压 (Vos):典型 2 mV
  • 输入偏置电流 (Ib):25 nA
  • 输入失调电流 (Ios):5 nA
  • 传播延迟 (tpd):约 1.3 μs(取决于负载和上拉)
  • 输出兼容:TTL / CMOS(开集电极输出,需要外部上拉)
  • 静态电流 (Iq):800 μA(整块芯片)
  • 工作温度范围:-40 ℃ 至 +125 ℃
  • 电源范围:单电源 3 V ~ 32 V;双电源对称范围 ±1.5 V~±16 V;最大电源差 VDD–VSS = 36 V

三、关键特性与优势

  • 支持宽电源电压,便于在不同系统电源下工作;单电源最低 3 V,适合低压系统。
  • 低失调电压与低偏置电流,提高微小信号检测精度。
  • 开集电极输出结构,可通过选配上拉电阻实现与不同逻辑电平(TTL/CMOS)的兼容与电平移位。
  • 宽温度范围与较低静态功耗,适合工业级长期工作环境。

四、典型应用

  • 电平比较与门限检测(欠压/过压报警、参考基准比较)
  • 电池管理与电量检测、充放电保护电路
  • 传感器信号判别与放大前端阈值触发
  • 窗口比较器、零交叉检测与脉冲宽度限幅或振荡器电路

五、使用建议

  • 输出为开集电极,必须外接上拉电阻;常用范围 2 kΩ~100 kΩ,选值需兼顾响应速度与功耗(较小阻值提高带载能力与速度)。
  • 对于存在抖动的输入,建议并入正反馈(滞后)实现施密特触发,避免抖动与误触发。
  • 电源引脚应靠近引脚并加 0.1 μF 陶瓷旁路电容以抑制瞬态噪声;在高电压供电情况下注意功耗与封装散热。
  • 传播延迟约为微秒级,不适合高频比较或精确延时应用;若需更快响应,请选用高速比较器。
  • 输入超出电源范围时需加限流或钳位保护,避免损伤输入级。

六、封装与采购

  • 封装:SOP-14,适用于常见 SMT 生产线。
  • 包装:TR 表示卷带,利于贴片机直接上料。
  • 型号:LM339AM/TR,品牌:HGSEMI(华冠)。

总结:LM339AM/TR 以其四路集成、宽电源范围、低失调与工业级温度能力,成为电平检测与阈值比较的通用器件。合理选择上拉、电源滤波与抗抖设计,可在多种消费与工业应用中稳定运行。

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