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Product Overview
The TL4242DRJR from Texas Instruments is a linear, constant-current LED driver designed for high-brightness LED applications. It operates from a supply voltage up to 40V and delivers a regulated output current of up to 500mA. The device features a low dropout voltage and excellent output current accuracy, making it ideal for automotive and industrial lighting systems. Housed in a compact 8-pin SON (4x4mm) package, it offers a space-saving solution for driving single or multiple LEDs in series.
Detailed Technical Specifications
| Parameter |
Value |
| Input Voltage Range |
4.5V to 40V |
| Output Current |
Up to 500mA |
| Current Accuracy |
±3% |
| Dropout Voltage |
500mV at 350mA |
| Package |
8-SON (4x4mm) |
| Operating Temperature |
-40°C to +125°C |
| Protection Features |
Thermal Shutdown, Current Limit |
Key Features
- Linear constant-current regulation with ±3% accuracy
- Low dropout voltage minimizes power dissipation
- Wide input voltage range supports automotive and industrial supplies
- Built-in thermal shutdown and output current limit
- Small 8-SON package for space-constrained designs
Target Applications
- Automotive exterior lighting: Daytime running lights (DRL), tail lights, turn signals
- Industrial LED lighting: Panel indicators, machine vision lighting
- 5G base station status indicators
- Dashboard backlighting in automotive clusters
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
TL4242DRJR. 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.
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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
TL4242DRJR 是德州儀器(TI)推出的一款線性恆流 LED 驅動器,專為高亮度 LED 應用設計。它可在高達 40V 的電源電壓下工作,並提供高達 500mA 的調節輸出電流。該器件具有低壓差電壓和出色的輸出電流精度,非常適合汽車和工業照明系統。採用緊湊的 8 引腳 SON(4x4mm)封裝,為驅動單個或多個串聯 LED 提供了節省空間的解決方案。
詳細技術參數
| 參數 |
數值 |
| 輸入電壓範圍 |
4.5V 至 40V |
| 輸出電流 |
最高 500mA |
| 電流精度 |
±3% |
| 壓差電壓 |
350mA 時 500mV |
| 封裝 |
8-SON(4x4mm) |
| 工作溫度 |
-40°C 至 +125°C |
| 保護功能 |
熱關斷、電流限制 |
核心特性
- 線性恆流調節,精度 ±3%
- 低壓差電壓,降低功耗
- 寬輸入電壓範圍,支持汽車和工業電源
- 內置熱關斷和輸出電流限制
- 小型 8-SON 封裝,適合空間受限設計
典型應用場景
- 汽車外部照明:日行燈、尾燈、轉向燈
- 工業 LED 照明:面板指示燈、機器視覺照明
- 5G 基站狀態指示燈
- 汽車儀表盤背光
環球供應鏈與批發合作夥伴方案
在 Jasin Chip,我們為 TL4242DRJR 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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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。
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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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