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Product Overview
The TLC5957RTQT is a 48-channel, constant-current sink LED driver from Texas Instruments, designed for high-performance display and lighting applications. It integrates a 16-bit PWM grayscale control with a 7-bit dot correction and 6-bit global brightness control, enabling precise and flexible LED management. The device operates over a wide voltage range and features a serial interface for data communication, making it suitable for large-scale LED systems.
Detailed Technical Specifications
| Parameter |
Value |
| Number of Channels |
48 |
| Output Current per Channel |
0.5 mA to 35 mA |
| PWM Resolution |
16-bit |
| Dot Correction |
7-bit (128 steps) |
| Global Brightness Control |
6-bit (64 steps) |
| Supply Voltage (VCC) |
3.0 V to 5.5 V |
| LED Supply Voltage (VLED) |
Up to 17 V |
| Data Interface |
Serial (SPI-compatible) |
| Package |
56-QFN (8x8 mm) |
| Operating Temperature |
-40°C to +85°C |
Key Features
- 48 constant-current sink channels with 16-bit PWM grayscale control
- 7-bit dot correction for per-channel brightness adjustment
- 6-bit global brightness control for overall intensity
- Serial interface with daisy-chain capability for multiple devices
- Built-in LED open/short detection
- Thermal shutdown protection
- Low power consumption with sleep mode
Target Applications
- LED video walls and signage (e.g., indoor/outdoor displays)
- Automotive lighting (e.g., dashboard backlighting, ambient lighting)
- Industrial control panels and indicators
- 5G base station status indicators
- General-purpose constant-current LED driving
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
TLC5957RTQT. 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
TLC5957RTQT 是德州儀器推出的48通道恆流沉入式LED驅動器,專為高性能顯示和照明應用設計。它集成了16位PWM灰度控制、7位點校正和6位全局亮度控制,實現精確靈活的LED管理。該器件在寬電壓範圍內工作,並採用串行接口進行數據通信,適用於大規模LED系統。
詳細技術參數
| 參數 |
數值 |
| 通道數 |
48 |
| 每通道輸出電流 |
0.5 mA 至 35 mA |
| PWM 分辨率 |
16位 |
| 點校正 |
7位(128級) |
| 全局亮度控制 |
6位(64級) |
| 電源電壓 (VCC) |
3.0 V 至 5.5 V |
| LED 電源電壓 (VLED) |
最高 17 V |
| 數據接口 |
串行(兼容SPI) |
| 封裝 |
56-QFN(8x8 mm) |
| 工作溫度 |
-40°C 至 +85°C |
核心特性
- 48通道恆流沉入,16位PWM灰度控制
- 7位點校正,可逐通道調整亮度
- 6位全局亮度控制,調節整體強度
- 串行接口支持菊花鏈級聯多個器件
- 內置LED開路/短路檢測
- 熱關斷保護
- 低功耗睡眠模式
典型應用場景
- LED視頻牆和標牌(如室內/室外顯示屏)
- 汽車照明(如儀表板背光、氛圍燈)
- 工業控制面板和指示燈
- 5G基站狀態指示燈
- 通用恆流LED驅動
環球供應鏈與批發合作夥伴方案
在 Jasin Chip,我們為 TLC5957RTQT 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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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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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。
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