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Product Overview
The LP8545SQ/NOPB is a high-performance, multi-channel LED driver from Texas Instruments, designed for backlighting and general illumination applications. It integrates a boost converter with current sinks, supporting up to 45V output and 1.5A total current. The device operates from a 2.7V to 5.5V input supply and features PWM dimming for precise brightness control. Housed in a compact 24-pin WQFN (4x4mm) package, it offers excellent thermal performance and space savings.
Detailed Technical Specifications
| Parameter |
Value |
| Input Voltage Range |
2.7V to 5.5V |
| Output Voltage (Boost) |
Up to 45V |
| Total Output Current |
1.5A (max) |
| Number of Channels |
6 |
| Switching Frequency |
1.2 MHz (typical) |
| Dimming Method |
PWM (up to 20 kHz) |
| Efficiency |
Up to 90% |
| Package |
24-WQFN (4x4mm) |
| Operating Temperature |
-40°C to +125°C |
Key Features
- Integrated boost converter with 45V output capability
- 6-channel current sinks with ±3% current matching
- PWM dimming with high contrast ratio
- Over-voltage, over-current, and thermal protection
- Low quiescent current (1.5 mA typical)
- Small footprint 24-WQFN package
Target Applications
- LCD backlighting for automotive dashboards and infotainment displays
- LED lighting for 5G base station indicators
- Industrial control panel backlighting
- Portable device display backlighting
- General purpose LED illumination
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
LP8545SQ/NOPB. Our core advantages include:
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24/7 Global Customer Support: Professional team providing instant
quotes and technical support worldwide.
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In-stock Inventory, Same-day Shipping: We maintain localized stock;
orders confirmed before 4 PM are shipped the same day.
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HK-SZ Synergy, Flexible Settlement: Direct global shipping from
Shenzhen with support for HK bank transfers and multi-currency.
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Escrow Secured Transactions: We support Escrow.com for secure
transactions, ensuring peace of mind for batch orders.
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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.
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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.
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Original Factory Packaging: We maintain original factory packaging
and seals to ensure ESD protection and physical integrity.
產品概述
LP8545SQ/NOPB 是德州儀器推出的一款高性能多通道 LED 驅動器,專為背光照明和通用照明應用設計。它集成了升壓轉換器和電流沉,支持高達 45V 的輸出電壓和 1.5A 的總電流。器件可在 2.7V 至 5.5V 的輸入電源下工作,並具有 PWM 調光功能以實現精確的亮度控制。採用緊湊的 24 引腳 WQFN(4x4mm)封裝,提供出色的熱性能和空間節省。
詳細技術參數
| 參數 |
數值 |
| 輸入電壓範圍 |
2.7V 至 5.5V |
| 輸出電壓(升壓) |
最高 45V |
| 總輸出電流 |
1.5A(最大) |
| 通道數 |
6 |
| 開關頻率 |
1.2 MHz(典型) |
| 調光方式 |
PWM(最高 20 kHz) |
| 效率 |
最高 90% |
| 封裝 |
24-WQFN(4x4mm) |
| 工作溫度 |
-40°C 至 +125°C |
核心特性
- 集成升壓轉換器,輸出電壓高達 45V
- 6 通道電流沉,電流匹配度 ±3%
- PWM 調光,高對比度
- 過壓、過流和過熱保護
- 低靜態電流(典型 1.5 mA)
- 小尺寸 24-WQFN 封裝
典型應用場景
- 汽車儀表盤和信息娛樂顯示屏的 LCD 背光
- 5G 基站指示燈的 LED 照明
- 工業控制面板背光
- 便攜式設備顯示屏背光
- 通用 LED 照明
環球供應鏈與批發合作夥伴方案
在 Jasin Chip,我們為 LP8545SQ/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:
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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。
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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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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。
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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。
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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。
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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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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。
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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。
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HONG KONG JASIN SEMICONDUCTOR TECHNOLOGY COMPANY LIMITED
Trusted Partner for Automotive, Industrial, and Hard-to-find Components.
WhatsApp: +852 5209 9691 | Email: [email protected]