LP8556SQ-E00/NOPB TI LED Driver | 24-WQFN (4x4) | 6-Channel, Boost Converter

Product Overview

The LP8556SQ-E00/NOPB is a high-efficiency, 6-channel LED driver from Texas Instruments, designed for backlighting applications in LCD displays. It integrates a boost converter with current sinks to drive up to 6 strings of LEDs with excellent current matching. The device operates from an input voltage range of 2.7V to 5.5V, making it suitable for battery-powered devices. With a maximum output voltage of 40V, it can drive multiple LEDs in series per channel. The LP8556 features PWM dimming, phase-shifted PWM for reduced audible noise, and built-in protection features including overvoltage, overcurrent, and thermal shutdown.

Detailed Technical Specifications

Key Features

• Integrated boost converter with 40V rating
• 6-channel current sinks with ±1.5% matching
• Phase-shifted PWM for low audible noise
• Programmable PWM dimming frequency
• Overvoltage, overcurrent, and thermal protection
• I2C interface for flexible control
• Small 24-WQFN package (4x4 mm)

Target Applications

• Smartphone and tablet LCD backlighting
• Automotive infotainment displays (e.g., Tesla Model 3 dashboard)
• Industrial control panels (e.g., Siemens HMI)
• Portable medical devices (e.g., ultrasound scanners)
• 5G base station status displays

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for LP8556SQ-E00/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

LP8556SQ-E00/NOPB 是德州儀器推出的一款高效率、6通道LED驅動器，專為LCD顯示器背光應用設計。它整合了升壓轉換器和電流沉，可驅動多達6串LED，並具有出色的電流匹配性能。該器件的工作輸入電壓範圍為2.7V至5.5V，適用於電池供電設備。最大輸出電壓為40V，每通道可驅動多個串聯LED。LP8556 支援PWM調光、相移PWM以降低可聽噪聲，並內建過壓、過流和熱關斷等保護功能。

詳細技術參數

核心特性

• 整合升壓轉換器，耐壓40V
• 6通道電流沉，匹配精度±1.5%
• 相移PWM，降低可聽噪聲
• 可編程PWM調光頻率
• 過壓、過流和熱關斷保護
• I2C接口，靈活控制
• 小型24-WQFN封裝（4x4 mm）

典型應用場景

• 智能手機和平板電腦LCD背光
• 汽車信息娛樂顯示器（如特斯拉Model 3儀表板）
• 工業控制面板（如西門子HMI）
• 便攜式醫療設備（如超聲掃描儀）
• 5G基站狀態顯示屏

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 LP8556SQ-E00/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]