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Product Overview
The TLC5947RHBT is a 24-channel, constant-current sink LED driver from Texas Instruments, designed for high-precision LED control in a compact 32-VQFN (5x5 mm) package. It integrates a 12-bit PWM grayscale control and a 6-bit global brightness adjustment, enabling smooth and accurate LED dimming. With a maximum output current of 30 mA per channel, it is ideal for applications requiring high-resolution color mixing and uniform brightness, such as LED displays, signage, and automotive lighting.
Detailed Technical Specifications
| Parameter |
Value |
| Number of Channels |
24 |
| Output Current per Channel |
2-30 mA (set via external resistor) |
| PWM Resolution |
12-bit (4096 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) |
| Data Transfer Rate |
30 MHz |
| Package |
32-VQFN (5x5 mm) |
| Operating Temperature |
-40°C to +85°C |
Key Features
- 24 constant-current sink channels with 30 mA max per channel
- 12-bit PWM grayscale control for smooth dimming
- 6-bit global brightness adjustment for uniformity
- SPI-compatible serial interface with 30 MHz data rate
- Built-in thermal shutdown and open-LED detection
- Low quiescent current (1.5 mA typical)
- Compact 5x5 mm VQFN package
Target Applications
- LED video displays and digital signage
- Automotive interior and exterior lighting (e.g., dashboard backlight, ambient lighting)
- Architectural and decorative lighting
- Industrial control panels and indicators
- 5G base station status indicators
- Gaming machines and amusement equipment
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
TLC5947RHBT. 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.
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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
TLC5947RHBT 是德州儀器(TI)推出的一款 24 通道恆流沉入式 LED 驅動器,採用緊湊的 32-VQFN(5x5 mm)封裝。它集成了 12 位 PWM 灰度控制和 6 位全局亮度調節,可實現平滑精確的 LED 調光。每通道最大輸出電流為 30 mA,適用於需要高分辨率色彩混合和均勻亮度的應用,如 LED 顯示屏、標牌和汽車照明。
詳細技術參數
| 參數 |
數值 |
| 通道數 |
24 |
| 每通道輸出電流 |
2-30 mA(通過外部電阻設置) |
| PWM 分辨率 |
12 位(4096 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) |
| 數據傳輸速率 |
30 MHz |
| 封裝 |
32-VQFN(5x5 mm) |
| 工作溫度 |
-40°C 至 +85°C |
核心特性
- 24 路恆流沉入通道,每通道最大 30 mA
- 12 位 PWM 灰度控制,實現平滑調光
- 6 位全局亮度調節,確保均勻性
- 兼容 SPI 的串行接口,數據速率 30 MHz
- 內置熱關斷和 LED 開路檢測
- 低靜態電流(典型值 1.5 mA)
- 緊湊的 5x5 mm VQFN 封裝
典型應用場景
- LED 視頻顯示屏和數字標牌
- 汽車內外照明(如儀表板背光、氛圍燈)
- 建築裝飾照明
- 工業控制面板和指示燈
- 5G 基站狀態指示燈
- 遊戲機和娛樂設備
環球供應鏈與批發合作夥伴方案
在 Jasin Chip,我們為 TLC5947RHBT 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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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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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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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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