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Product Overview
The TLC5947RHBR 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 per channel, enabling smooth and accurate brightness adjustment. With a maximum output current of 30 mA per channel, it is ideal for driving multiple LEDs in applications requiring high color depth and uniformity.
Detailed Technical Specifications
| Parameter |
Value |
| Number of Channels |
24 |
| Output Current per Channel |
2 mA to 30 mA (set via external resistor) |
| PWM Resolution |
12-bit (4096 steps) |
| Data Interface |
Serial (SPI-compatible) |
| Supply Voltage (VCC) |
3.0 V to 5.5 V |
| LED Supply Voltage (VLED) |
Up to 17 V |
| Package |
32-VQFN (5x5 mm) |
| Operating Temperature |
-40°C to +85°C |
Key Features
- 24 constant-current sink channels with 12-bit PWM grayscale control
- Programmable output current up to 30 mA per channel
- Serial data interface with daisy-chain capability
- Built-in thermal shutdown and open-LED detection
- Low quiescent current (typical 1.5 mA)
- Compact 5x5 mm QFN package for space-constrained designs
Target Applications
- 5G base station status indicators and panel lighting
- Automotive dashboard backlighting and interior ambient lighting
- Industrial control panels and signage displays
- LED video walls and pixel-based lighting systems
- Smart home lighting and IoT devices
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
TLC5947RHBR. 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
TLC5947RHBR 是德州儀器(TI)推出的一款 24 通道恆流源 LED 驅動器,採用緊湊的 32-VQFN(5x5 mm)封裝。每個通道內置 12 位 PWM 灰度控制,可實現平滑精確的亮度調節。每通道最大輸出電流為 30 mA,適用於需要高色彩深度和一致性的多 LED 應用。
詳細技術參數
| 參數 |
數值 |
| 通道數 |
24 |
| 每通道輸出電流 |
2 mA 至 30 mA(通過外部電阻設定) |
| PWM 分辨率 |
12 位(4096 級) |
| 數據接口 |
串行(兼容 SPI) |
| 電源電壓(VCC) |
3.0 V 至 5.5 V |
| LED 電源電壓(VLED) |
最高 17 V |
| 封裝 |
32-VQFN(5x5 mm) |
| 工作溫度 |
-40°C 至 +85°C |
核心特性
- 24 路恆流源輸出,每路 12 位 PWM 灰度控制
- 可編程輸出電流,每通道最高 30 mA
- 串行數據接口,支持級聯
- 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 QFN 封裝,適合空間受限設計
典型應用場景
- 5G 基站狀態指示燈及面板照明
- 汽車儀表盤背光及內部氛圍燈
- 工業控制面板與標牌顯示
- LED 視頻牆與像素照明系統
- 智能家居照明與 IoT 設備
環球供應鏈與批發合作夥伴方案
在 Jasin Chip,我們為 TLC5947RHBR 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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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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