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Product Overview
The TLC5947DAPR is a 24-channel, constant-current sink LED driver from Texas Instruments, designed for high-precision LED control. It features a 12-bit (4096-step) grayscale PWM control for each channel, enabling smooth and accurate brightness adjustments. The device operates with a supply voltage range of 3.0V to 5.5V and can sink up to 30mA per channel, making it suitable for a wide range of LED display and lighting applications. The TLC5947DAPR is housed in a 32-pin HTSSOP package with an exposed pad for enhanced thermal performance.
Detailed Technical Specifications
| Parameter |
Value |
| Number of Channels |
24 |
| Constant Current per Channel |
2 mA to 30 mA (set by external resistor) |
| Grayscale Resolution |
12-bit (4096 steps) PWM |
| Supply Voltage |
3.0 V to 5.5 V |
| LED Supply Voltage |
Up to 17 V |
| Data Interface |
Serial (SPI-compatible) |
| Maximum Data Clock Rate |
30 MHz |
| Operating Temperature |
-40°C to +85°C |
| Package |
32-HTSSOP (with exposed pad) |
Key Features
- 24 constant-current sink channels with 12-bit PWM grayscale control
- Adjustable output current from 2 mA to 30 mA via external resistor
- Serial data interface with 30 MHz maximum clock rate
- Built-in thermal shutdown and error detection
- LED supply voltage up to 17 V
- Low power consumption with sleep mode
- Package with exposed pad for improved heat dissipation
Target Applications
- LED video displays (e.g., indoor/outdoor full-color panels)
- Automotive lighting (e.g., dashboard backlighting, ambient lighting)
- Industrial control panels and signage
- 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
TLC5947DAPR. 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
TLC5947DAPR 是德州儀器(TI)推出的一款 24 通道恆流源 LED 驅動器,專為高精度 LED 控制設計。每個通道均具備 12 位(4096 級)灰度 PWM 控制,可實現平滑且精確的亮度調節。器件工作電壓範圍為 3.0V 至 5.5V,每通道最大恆流 30mA,適用於多種 LED 顯示和照明應用。TLC5947DAPR 採用 32 引腳 HTSSOP 封裝,帶有裸露焊盤以增強散熱性能。
詳細技術參數
| 參數 |
數值 |
| 通道數 |
24 |
| 每通道恆流 |
2 mA 至 30 mA(由外部電阻設定) |
| 灰度分辨率 |
12 位(4096 級)PWM |
| 電源電壓 |
3.0 V 至 5.5 V |
| LED 電源電壓 |
最高 17 V |
| 數據接口 |
串行(SPI 兼容) |
| 最大數據時鐘頻率 |
30 MHz |
| 工作溫度 |
-40°C 至 +85°C |
| 封裝 |
32-HTSSOP(帶裸露焊盤) |
核心特性
- 24 通道恆流源,12 位 PWM 灰度控制
- 輸出電流可調(2 mA 至 30 mA),通過外部電阻設定
- 串行數據接口,最高時鐘 30 MHz
- 內置熱關斷和錯誤檢測功能
- LED 電源電壓最高 17 V
- 低功耗,支持睡眠模式
- 裸露焊盤封裝,改善散熱
典型應用場景
- LED 視頻顯示屏(如室內/室外全彩面板)
- 汽車照明(如儀表板背光、氛圍燈)
- 工業控制面板和標牌
- 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
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我們的核心優勢包括:
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