LM339MX/NOPB TI Comparator IC | 14-SOIC | Quad, Low Power, Open Collector

Product Overview

The LM339MX/NOPB from Texas Instruments is a quad differential comparator IC designed for low-power, high-precision voltage comparison applications. Housed in a compact 14-SOIC package, this device features four independent comparators with open-collector outputs, making it ideal for interfacing with various logic families. The LM339MX/NOPB operates from a single power supply over a wide voltage range of 2V to 36V (or dual supplies ±1V to ±18V) and offers low supply current drain (0.8 mA typical) independent of supply voltage. Its low input bias current (25 nA typical) and low input offset voltage (2 mV typical) ensure accurate comparisons in demanding applications.

Detailed Technical Specifications

Key Features

• Quad comparators in a single 14-SOIC package
• Wide supply voltage range: 2V to 36V (single) or ±1V to ±18V (dual)
• Low supply current: 0.8 mA typical
• Low input offset voltage: 2 mV typical
• Low input bias current: 25 nA typical
• Open-collector outputs for wired-AND connection
• Compatible with TTL, DTL, ECL, MOS, and CMOS logic
• High input impedance: 100 MΩ typical

Target Applications

The LM339MX/NOPB is widely used in various electronic systems requiring precise voltage comparison. Specific applications include:

• 5G base station power supply monitoring and fault detection
• Automotive dashboard warning systems (e.g., battery voltage monitoring)
• Industrial process control (e.g., temperature threshold detection)
• Battery management systems (overvoltage/undervoltage protection)
• Signal conditioning in sensor interfaces
• Zero-crossing detectors for AC power control

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for LM339MX/NOPB. Our core advantages include:

• 24/7 Global Customer Support: Professional team providing instant quotes and technical support worldwide.
• In-stock Inventory, Same-day Shipping: We maintain localized stock; orders confirmed before 4 PM are shipped the same day.
• HK-SZ Synergy, Flexible Settlement: Direct global shipping from Shenzhen with support for HK bank transfers and multi-currency.
• Escrow Secured Transactions: We support Escrow.com for secure transactions, ensuring peace of mind for batch orders.
• BOM Kitting & Sampling Services: Specialized sourcing for testing samples and urgent shortage components.

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• 100% Original & Authentic: All components are guaranteed to be authentic with strict quality control.
• RoHS Compliant: All electronic components comply with international environmental and safety standards.
• Original Factory Packaging: We maintain original factory packaging and seals to ensure ESD protection and physical integrity.

產品概述

LM339MX/NOPB 是德州儀器 (TI) 推出的四通道差分比較器 IC，專為低功耗、高精度電壓比較應用而設計。該器件採用緊湊的 14-SOIC 封裝，內置四個獨立比較器，具有開集電極輸出，便於與各種邏輯系列接口。LM339MX/NOPB 可在 2V 至 36V 的單電源或 ±1V 至 ±18V 的雙電源下工作，典型總電源電流僅為 0.8 mA，且與電源電壓無關。其低輸入偏置電流（典型值 25 nA）和低輸入失調電壓（典型值 2 mV）確保了在苛刻應用中的精確比較。

詳細技術參數

核心特性

• 單個 14-SOIC 封裝內集成四路比較器
• 寬電源電壓範圍：單電源 2V 至 36V 或雙電源 ±1V 至 ±18V
• 低電源電流：典型值 0.8 mA
• 低輸入失調電壓：典型值 2 mV
• 低輸入偏置電流：典型值 25 nA
• 開集電極輸出，支持線與連接
• 兼容 TTL、DTL、ECL、MOS 和 CMOS 邏輯
• 高輸入阻抗：典型值 100 MΩ

典型應用場景

LM339MX/NOPB 廣泛應用於需要精確電壓比較的各種電子系統。具體應用包括：

• 5G 基站電源監控與故障檢測
• 汽車儀表盤報警系統（如電池電壓監控）
• 工業過程控制（如溫度閾值檢測）
• 電池管理系統（過壓/欠壓保護）
• 傳感器接口中的信號調理
• 交流電源控制的過零檢測器

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 LM339MX/NOPB 提供全面的供應鏈與批發解決方案。 我們的核心優勢包括：

• 全天候環球客戶支援：專業團隊為您提供即時報價及技術支援，無需漫長等待。
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