LM339NSR TI Quad Differential Comparator | 14-SO | Low Power, Open Collector Output

Product Overview

The LM339NSR from Texas Instruments is a quad differential comparator designed for low-power, high-performance applications. Housed in a compact 14-SO package, it features four independent voltage comparators with open-collector outputs, making it ideal for interfacing with various logic families. The device operates from a single power supply over a wide voltage range of 2V to 36V (or ±1V to ±18V for dual supplies), with low supply current drain of 0.8 mA per comparator. Its common-mode input voltage range includes ground, enabling direct sensing near ground potential. The LM339NSR is characterized for operation from 0°C to 70°C, ensuring reliable performance in commercial environments.

Detailed Technical Specifications

Key Features

• Quad comparator in a single 14-SO package saves board space
• Wide supply voltage range: 2V to 36V (single) or ±1V to ±18V (dual)
• Low supply current: 0.8 mA per comparator
• Open-collector outputs allow wired-AND connections
• Common-mode input voltage range includes ground
• Low input offset voltage: ±5 mV max
• Fast response time: 1.3 µs typical
• Compatible with TTL, DTL, ECL, MOS, and CMOS logic

Target Applications

• 5G base station power supply monitoring and fault detection
• Automotive dashboard warning systems (e.g., low battery, over-temperature)
• Industrial motor control: overcurrent and overvoltage protection
• Battery management systems for electric vehicles
• Threshold detectors in IoT sensor nodes
• Zero-crossing detectors for AC power control

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for LM339NSR. 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.

Quality Assurance & Compliance

Jasin Chip guarantees that all delivered products are 100% original factory stock with full quality assurance and traceability.

• 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

LM339NSR 是德州儀器推出的四路差分比較器，專為低功耗、高性能應用設計。採用緊湊的 14-SO 封裝，內置四個獨立電壓比較器，具有開集電極輸出，便於與各種邏輯系列接口。器件可在 2V 至 36V（單電源）或 ±1V 至 ±18V（雙電源）的寬電壓範圍內工作，每個比較器的電源電流僅 0.8 mA。共模輸入電壓範圍包含地電位，可直接檢測接近地電位的信號。LM339NSR 的工作溫度範圍為 0°C 至 70°C，確保在商業環境中的可靠性能。

詳細技術參數

核心特性

• 單個 14-SO 封裝內集成四路比較器，節省電路板空間
• 寬電源電壓範圍：2V 至 36V（單電源）或 ±1V 至 ±18V（雙電源）
• 低電源電流：每個比較器 0.8 mA
• 開集電極輸出支持線與連接
• 共模輸入電壓範圍包含地電位
• 低輸入失調電壓：最大 ±5 mV
• 快速響應時間：典型值 1.3 µs
• 兼容 TTL、DTL、ECL、MOS 和 CMOS 邏輯

典型應用場景

• 5G 基站電源監控與故障檢測
• 汽車儀表盤報警系統（如低電量、過溫）
• 工業電機控制：過流和過壓保護
• 電動汽車電池管理系統
• 物聯網傳感器節點的閾值檢測
• 交流電源控制的零交叉檢測器

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 LM339NSR 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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• Escrow 擔保交易：支援 Escrow.com 平台交易，保障買賣雙方權益，小批量訂單亦可安心在線下單。
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HONG KONG JASIN SEMICONDUCTOR TECHNOLOGY COMPANY LIMITED
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