LM339D ST Comparator | 14-SO | Quad, Low Power, 2V to 36V

Product Overview

The LM339D is a quad low-power voltage comparator from STMicroelectronics, designed for applications requiring high precision and low power consumption. It operates from a single power supply over a wide voltage range of 2V to 36V, or from dual supplies of ±1V to ±18V. The device features open-collector outputs that can be connected to various logic families, making it highly versatile for mixed-signal systems. Packaged in a compact 14-SO (SOIC-14) package, the LM339D is ideal for space-constrained designs.

Detailed Technical Specifications

Key Features

• Quad comparators in a single package
• Wide supply voltage range: 2V to 36V
• Low supply current: 0.4 mA per comparator
• Low input offset voltage: ±2 mV typical
• Open-collector outputs for wired-AND connection
• Compatible with TTL, DTL, ECL, MOS, and CMOS logic
• ESD protection: 2 kV HBM
• RoHS compliant

Target Applications

The LM339D is suitable for a wide range of applications including:

• 5G base station power supply monitoring and fault detection
• Automotive dashboard warning systems (e.g., low battery, over-temperature)
• Industrial motor control and overcurrent protection
• Battery management systems for voltage level detection
• Signal conditioning and threshold detection in IoT devices
• Precision oscillators and timing circuits

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for LM339D. 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

LM339D 是意法半導體（STMicroelectronics）推出的四路低功耗電壓比較器，專為需要高精度和低功耗的應用而設計。它可在 2V 至 36V 的單電源或 ±1V 至 ±18V 的雙電源下工作。器件具有開集電極輸出，可連接至各種邏輯系列，非常適合混合信號系統。LM339D 採用緊湊的 14-SO（SOIC-14）封裝，是空間受限設計的理想選擇。

詳細技術參數

核心特性

• 單封裝內集成四路比較器
• 寬電源電壓範圍：2V 至 36V
• 低電源電流：每路 0.4 mA
• 低輸入失調電壓：典型值 ±2 mV
• 開集電極輸出，支持線與連接
• 兼容 TTL、DTL、ECL、MOS 和 CMOS 邏輯
• ESD 保護：2 kV HBM
• 符合 RoHS 標準

典型應用場景

LM339D 適用於多種應用，包括：

• 5G 基站電源監控和故障檢測
• 汽車儀表盤警告系統（如低電量、過溫）
• 工業電機控制和過流保護
• 電池管理系統中的電壓電平檢測
• 物聯網設備中的信號調理和閾值檢測
• 精密振盪器和定時電路

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 LM339D 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。
• 深港聯動，結算靈活：深圳直發全球，物流高效可靠；支援香港銀行戶口轉賬及多幣種結算。
• 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。
• 符合 RoHS 認證：所有電子元器件均符合國際環保標準及相關安全認證。
• 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
Trusted Partner for Automotive, Industrial, and Hard-to-find Components.
WhatsApp: +852 5209 9691 | Email: [email protected]