LM339N TI Comparator | 14-PDIP | Quad, Open-Collector, 2V to 36V

Product Overview

The LM339N from Texas Instruments is a quad differential comparator designed for industrial and automotive applications. It features four independent voltage comparators with open-collector outputs, capable of operating from a single power supply over a wide voltage range of 2V to 36V (or dual supplies ±1V to ±18V). The device offers low supply current drain (0.8 mA typical) and low input offset voltage (2 mV typical), making it suitable for battery-powered systems and precision threshold detection. The 14-pin PDIP package ensures easy integration into through-hole PCB designs.

Detailed Technical Specifications

Key Features

• Wide single supply voltage range: 2V to 36V
• Low supply current drain: 0.8 mA typical (independent of supply voltage)
• Low input offset voltage: 2 mV typical
• Low input bias current: 25 nA typical
• Open-collector outputs for wired-AND connection
• Common-mode input voltage range includes ground
• Differential input voltage range equal to maximum supply voltage
• Low output saturation voltage
• Output compatible with TTL, DTL, ECL, MOS, and CMOS logic

Target Applications

• 5G base station power supply monitoring (overvoltage/undervoltage detection)
• Automotive dashboard warning systems (battery voltage monitoring)
• Industrial motor control (current limit detection)
• Battery management systems (cell voltage comparison)
• Signal conditioning for sensor interfaces (threshold detection)
• Oscillator circuits and pulse generators

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for LM339N. 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

LM339N 是德州儀器（TI）推出的四通道差分比較器，專為工業和汽車應用設計。它包含四個獨立的電壓比較器，具有開集電極輸出，可在 2V 至 36V 的寬電源電壓範圍內工作（或雙電源 ±1V 至 ±18V）。該器件具有低電源電流消耗（典型值 0.8 mA）和低輸入失調電壓（典型值 2 mV），適用於電池供電系統和精密閾值檢測。14 引腳 PDIP 封裝便於通孔 PCB 設計的集成。

詳細技術參數

核心特性

• 寬單電源電壓範圍：2V 至 36V
• 低電源電流消耗：典型值 0.8 mA（與電源電壓無關）
• 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
• 共模輸入電壓範圍包括地電位
• 差分輸入電壓範圍等於最大電源電壓
• 低輸出飽和電壓
• 輸出兼容 TTL、DTL、ECL、MOS 和 CMOS 邏輯

典型應用場景

• 5G 基站電源監控（過壓/欠壓檢測）
• 汽車儀表盤警告系統（電池電壓監控）
• 工業電機控制（電流限制檢測）
• 電池管理系統（電池電壓比較）
• 傳感器接口信號調理（閾值檢測）
• 振盪器電路和脈衝發生器

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 LM339N 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。
• 現貨庫存，即日發貨：確保現貨充足。下午 4 點前確認訂單，即可安排當天寄出。
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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。
• BOM 配單與樣板服務：提供樣板測試及認證支援。專注一站式 BOM 配套及緊急缺料採購服務。

品質保證與合規

Jasin Chip 承諾所有出貨產品均為原廠正貨，具備完善的品質保證及產品可追溯性。

• 100% 原廠正貨：承諾所有供應零件均為原裝現貨，品質嚴格把關，來源清晰可追溯。
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• 原廠封裝保護：嚴格保留原廠原始包裝及封條，確保物流過程中的靜電防護 (ESD) 與物理安全。

以上產品均為原廠正貨，提供 BOM 配單及現貨庫存支援，歡迎查詢。

HONG KONG JASIN SEMICONDUCTOR TECHNOLOGY COMPANY LIMITED
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