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Product Overview
The TLC5945PWP is a 16-channel constant-current sink LED driver from Texas Instruments, designed for applications requiring high-precision current control and grayscale PWM dimming. It features dot correction for individual channel brightness adjustment and a 12-bit grayscale PWM for smooth dimming. The device operates from a 3V to 5.5V supply and is housed in a 28-pin HTSSOP package with PowerPAD for enhanced thermal performance.
Detailed Technical Specifications
| Parameter |
Value |
| Number of Channels |
16 |
| Output Current per Channel |
0.5 mA to 120 mA (programmable via external resistor) |
| Constant-Current Accuracy |
±1% (typical) between channels, ±3% (max) over temperature |
| Grayscale PWM Resolution |
12-bit (4096 steps) |
| Dot Correction Resolution |
6-bit (64 steps) |
| Data Interface |
Serial (SPI-compatible), 30 MHz max clock |
| Supply Voltage |
3.0 V to 5.5 V |
| Output Voltage Compliance |
Up to 17 V |
| Operating Temperature |
-40°C to +85°C |
| Package |
28-HTSSOP (PowerPAD) |
Key Features
- 16 constant-current sink channels with programmable current from 0.5 mA to 120 mA
- 12-bit grayscale PWM for smooth dimming and color mixing
- 6-bit dot correction for individual channel brightness calibration
- Serial data interface with 30 MHz clock speed for high-speed data transfer
- Error detection (LED open/short) via serial interface
- Thermal shutdown protection
- PowerPAD package for improved heat dissipation
Target Applications
- LED video displays (e.g., indoor/outdoor signage, stadium screens)
- Automotive lighting (e.g., dashboard backlighting, ambient lighting)
- Industrial control panels and indicator lights
- 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
TLC5945PWP. 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
TLC5945PWP 是德州儀器(TI)推出的16通道恆流源 LED 驅動器,專為需要高精度電流控制和灰度 PWM 調光的應用而設計。它具有用於單個通道亮度調節的點校正功能和用於平滑調光的12位灰度 PWM。該器件可在3V至5.5V電源電壓下工作,採用帶有 PowerPAD 的28引腳 HTSSOP 封裝,以增強散熱性能。
詳細技術參數
| 參數 |
數值 |
| 通道數 |
16 |
| 每通道輸出電流 |
0.5 mA 至 120 mA(通過外部電阻設定) |
| 恆流精度 |
通道間典型值 ±1%,全溫度範圍最大值 ±3% |
| 灰度 PWM 分辨率 |
12位(4096級) |
| 點校正分辨率 |
6位(64級) |
| 數據接口 |
串行(SPI 兼容),最高時鐘 30 MHz |
| 電源電壓 |
3.0 V 至 5.5 V |
| 輸出電壓順應 |
最高 17 V |
| 工作溫度 |
-40°C 至 +85°C |
| 封裝 |
28-HTSSOP(PowerPAD) |
核心特性
- 16路恆流源通道,可編程電流範圍 0.5 mA 至 120 mA
- 12位灰度 PWM,實現平滑調光和混色
- 6位點校正,用於單個通道亮度校準
- 串行數據接口,時鐘速度高達 30 MHz,支持高速數據傳輸
- 通過串行接口進行錯誤檢測(LED 開路/短路)
- 熱關斷保護
- PowerPAD 封裝,改善散熱
典型應用場景
- LED 視頻顯示屏(例如室內/室外標牌、體育場屏幕)
- 汽車照明(例如儀表板背光、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 TLC5945PWP 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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