WMSIC Electronic Components

ST LM339APT

ST LM339APT
1 / 3

Product image

ModelLM339APT
PackageTSSOP-14
BrandST
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 Date code within 2 years

Available for RFQ

Send RFQ Contact customer service

Technical data

Product details

19 specifications

Core information

Product name
ST(STMicroelectronics) LM339APT
Type
ST
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
ST(STMicroelectronics)
Electronic Component
LM339APT
Electronic Component
1
Package
TSSOP-14
Electronic Component
Comparator
Electronic Component
0.2g
Power Supply
2V~36V
Electronic Component
1
Electronic Component
BM69419445
Operating Temperature
40℃~+105℃
Comparator
Electronic Component
Output
MOS；DTL；CMOS；TTL；ECL
(tr)
1.3us
Static Current(Iq)
1.1mA
(tpd)
300ns

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

产品概述：LM339APT 比较器

概述

LM339APT 是一款高性能的比较器，广泛应用于模数转换、信号检测与处理以及电平转换等多种电子电路中。由意法半导体（STMicroelectronics）推出，这款器件结合了高输入阻抗、低输入电流和广泛的工作电压范围，使其成为现代电子设计中不可或缺的组件。

基础参数

  • 供电电压：LM339APT 的供电电压范围为 2V 到 32V（单电源），也支持 ±1V 到 ±16V（双电源），满足不同应用的需求。
  • 工作温度：该器件在 0°C 到 70°C 的工作温度范围内运行，适合大多数工业和消费类应用环境。
  • 元件数：LM339APT 包含四个独立的比较器模块，能够在同一封装内实现多路信号的比较，优化了电路设计的空间和成本。
  • 输出类型：输出信号可通过 CMOS、TTL、DTL、ECL、MOS 和开路集电极等多种形式提供，极大地提高了设计灵活性。

电气特性

  • 输入部分：

    • 电压 - 输入补偿：在 30V 的条件下，其输入补偿最大值为 2mV，确保了高精度的信号比较。
    • 电流 - 输入偏置：在 5V 条件下，输入偏置电流最大不超过 0.1μA，确保器件对源信号的负载影响最小，适合高阻抗信号的处理。

  • 输出部分：

    • 电流 - 输出：在 5V 下，输出电流的典型值为 16mA，能驱动大部分后续电路，满足各种应用需求。

  • 电流 - 静态：最大静态电流为 2.5mA，能够有效降低器件在待机状态下的功耗，从而提升整体系统的能效。

封装与安装

LM339APT 采用 14-TSSOP 封装，具有极小的占地面积，适合高密度的表面贴装（SMD）应用。TSSOP 封装的引脚间距适中，便于自动化焊接，也降低了手动焊接带来的不确定性。

应用场景

LM339APT 的应用场景十分广泛，主要包括但不限于：

  1. 信号比较：能够实时监测电压信号的变化，适合用于电源监测、过压/欠压保护等。
  2. 模数转换：作为模数转换器的前端，提供高精度的电压比较，满足数据采集系统的需求。
  3. 电平转换：能够适配不同的逻辑电平，便于在不同时序的电路间进行信号转换。
  4. 温度监测：适合用于温度传感器的信号处理，确保系统能够实时反映环境变化。

结论

LM339APT 是一款功能全面、性能优越的比较器。其特有的低功耗、高精度和多种输出类型特性，使其在现代电子设计中被广泛采用。凭借意法半导体的技术积累和对质量的严格控制，LM339APT 能够为设计工程师提供可靠的解决方案，优化产品的性能和稳定性。在当前的电子设计行业中，LM339APT 无疑是一款值得信赖的核心组件。

Request for quote

Send RFQ

Use the form for single models, category sourcing, and multi-line BOM requirements.

Send your target model and quantity.

Product sourcing intelligence

Model, package, availability, and BOM fit reviewed before quotation.

WMSIC turns product data, package visuals, BOM context, and sourcing signals into practical RFQ notes for buyers.

Electronic component model and package intelligence review on an ESD-safe inspection bench

Model & package intelligence

Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.

BOM matching and alternative component comparison workstation with protected IC samples

BOM matching & alternatives

BOM lines are compared by package, parameters, quantity, and workable alternatives for cleaner sourcing decisions.

Electronic component sourcing availability dashboard with ESD-protected samples

Sourcing availability signal

Stock routes, quotation confidence, lead-time notes, and shipment feasibility are checked before sales follow-up.

Buyer sourcing scenarios

Examples of how common component sourcing requests are organized.

Typical RFQ scenarios based on the WMSIC form fields, catalog data, manual review steps, and shipment preparation workflow.

The buyer shares the full part number, package requirement, quantity, destination, and available product photos so the quotation can record the exact version under review.

Package confirmation Typical RFQ workflow

A multi-line BOM is organized into direct sourcing lines, lines that need package clarification, and lines where alternative-part review is permitted.

Mixed BOM triage Typical RFQ workflow

The original manufacturer part number, datasheet revision, application, critical limits, and acceptable changes are collected before possible candidates are discussed.

Obsolete-part review Typical RFQ workflow

Sample quantity, minimum packing, package format, target date, and courier destination are kept together in one RFQ conversation.

Small-batch request Typical RFQ workflow

Package photos, model markings, board context, and the quantity needed for repair help focus the sourcing review on the relevant version.

Repair batch evidence Typical RFQ workflow

When a suffix or package note is incomplete, the response records the open difference and requests buyer confirmation before procurement proceeds.

Model suffix clarification Typical RFQ workflow

Packing format, carton notes, invoice details, courier option, destination, and tracking handoff are coordinated around the confirmed order.

Export handoff Typical RFQ workflow

The request connects the previously used model, current demand, package evidence, target timing, and replenishment sourcing route.

Replenishment inquiry Typical RFQ workflow

Related products

Packaged components ready for RFQ.