LM3421MH/NOPB TI LED Driver | 16-HTSSOP | 40V, 1A, PWM Dimming

Product Overview

The LM3421MH/NOPB from Texas Instruments is a versatile, constant current LED driver designed for high-brightness LED applications. It operates from an input voltage range of 4.5V to 40V and can deliver up to 1A of output current. The device integrates a high-side current sense amplifier, a PWM dimming input, and a thermal shutdown feature, making it ideal for automotive, industrial, and general lighting systems. The 16-pin HTSSOP package ensures a compact footprint with excellent thermal performance.

Detailed Technical Specifications

Key Features

• Wide input voltage range: 4.5V to 40V
• High output current capability: up to 1A
• Integrated high-side current sense amplifier
• PWM dimming input for precise brightness control
• Adjustable switching frequency up to 1MHz
• Thermal shutdown protection
• Low shutdown current: <1µA
• Available in 16-pin HTSSOP package with exposed pad for thermal dissipation

Target Applications

• Automotive lighting: headlamps, daytime running lights, interior lighting
• Industrial lighting: high-bay fixtures, streetlights
• General LED lighting: downlights, spotlights
• 5G base station indicator lights
• Dashboard backlighting in automotive and avionics
• Portable and battery-powered lighting

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for LM3421MH/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.

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

LM3421MH/NOPB 是德州儀器（TI）推出的一款多功能恆流 LED 驅動器，專為高亮度 LED 應用設計。其輸入電壓範圍為 4.5V 至 40V，輸出電流可達 1A。該器件集成了高側電流檢測放大器、PWM 調光輸入和熱關斷功能，非常適合汽車、工業和通用照明系統。16-HTSSOP 封裝確保了緊湊的尺寸和優異的熱性能。

詳細技術參數

核心特性

• 寬輸入電壓範圍：4.5V 至 40V
• 高輸出電流能力：最高 1A
• 集成高側電流檢測放大器
• PWM 調光輸入，實現精確亮度控制
• 可調開關頻率，最高 1MHz
• 熱關斷保護
• 低關斷電流：<1µA
• 採用 16-HTSSOP 封裝，帶有裸露焊盤以增強散熱

典型應用場景

• 汽車照明：前照燈、日間行車燈、內部照明
• 工業照明：高棚燈、路燈
• 通用 LED 照明：筒燈、射燈
• 5G 基站指示燈
• 汽車和航空儀表板背光
• 便攜式和電池供電照明

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 LM3421MH/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。
• 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]