LM3421Q1MHX/NOPB TI LED Driver | 16-HTSSOP | 40V, 1A, Buck-Boost

Product Overview

The LM3421Q1MHX/NOPB is a high-voltage, automotive-grade LED driver from Texas Instruments, designed for driving high-brightness LEDs in series. It operates as a buck-boost controller, capable of handling input voltages from 4.5V to 40V, making it suitable for a wide range of automotive and industrial applications. The device integrates a high-side current sense amplifier, PWM dimming control, and protection features such as thermal shutdown and overcurrent protection. Packaged in a 16-HTSSOP with exposed pad for enhanced thermal performance, the LM3421Q1MHX/NOPB is qualified to AEC-Q100 standards.

Detailed Technical Specifications

Key Features

• Wide input voltage range: 4.5V to 40V
• High-side current sense with ±3% accuracy
• Integrated PWM dimming with high contrast ratio
• Programmable switching frequency up to 1 MHz
• Protection: overvoltage, overcurrent, thermal shutdown
• AEC-Q100 qualified for automotive applications
• Exposed pad package for efficient heat dissipation

Target Applications

• Automotive headlamps and daytime running lights (e.g., Audi A8 LED matrix headlights)
• Industrial lighting for 5G base stations (e.g., Nokia AirScale outdoor cabinets)
• Dashboard backlighting in electric vehicles (e.g., Tesla Model 3 instrument cluster)
• LED signage and architectural lighting
• Portable and battery-powered lighting systems

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for LM3421Q1MHX/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

LM3421Q1MHX/NOPB 是德州儀器推出的一款高電壓、車規級 LED 驅動器，專為驅動串聯高亮度 LED 設計。它採用升降壓控制器架構，可處理 4.5V 至 40V 的輸入電壓，適用於多種汽車和工業應用。該器件集成了高端電流檢測放大器、PWM 調光控制以及熱關斷和過流保護等功能。採用 16-HTSSOP 封裝，帶有裸露焊盤以增強散熱性能，並通過 AEC-Q100 認證。

詳細技術參數

核心特性

• 寬輸入電壓範圍：4.5V 至 40V
• 高端電流檢測，精度 ±3%
• 集成 PWM 調光，高對比度
• 可編程開關頻率，最高 1 MHz
• 保護功能：過壓、過流、熱關斷
• 通過 AEC-Q100 車規認證
• 裸露焊盤封裝，高效散熱

典型應用場景

• 汽車前照燈和日間行車燈（例如奧迪 A8 LED 矩陣大燈）
• 5G 基站工業照明（例如諾基亞 AirScale 室外機櫃）
• 電動汽車儀表板背光（例如特斯拉 Model 3 儀表組）
• LED 標牌和建築照明
• 便攜式和電池供電照明系統

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 LM3421Q1MHX/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]