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TLC5940-EP-带有像点校正与灰度 PWM 控制的增强型产品 16 通道 LED 驱动器
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TI产品 - TLC5940-EP介绍

TLC5940-EP - 带有像点校正与灰度 PWM 控制的增强型产品 16 通道 LED 驱动器

TLC5940-EP是TI德州仪器公司的一款标牌/线性产品，TLC5940-EP是带有像点校正与灰度 PWM 控制的增强型产品 16 通道 LED 驱动器，本站介绍了TLC5940-EP的封装应用图解、特点和优点、功能等，并给出了与TLC5940-EP相关的TI元器件型号供参考。

TLC5940-EP - 带有像点校正与灰度 PWM 控制的增强型产品 16 通道 LED 驱动器 - 标牌/线性 - LED驱动器 - 德州仪器

产品描述

The TLC5940 is a 16-channel, constant-current sink LED driver. Each channel has an individually adjustable 4096-step grayscale PWM brightness control and a 64-step, constant-current sink (dot correction). The dot correction adjusts the brightness variations between LED channels and other LED drivers. The dot correction data is stored in an integrated EEPROM. Both grayscale control and dot correction are accessible via a serial interface. A single external resistor sets the maximum current value of all 16 channels.

The TLC5940 features two error information circuits. The LED open detection (LOD) indicates a broken or disconnected LED at an output terminal. The thermal error flag (TEF) indicates an overtemperature condition.

产品特性

  • 16 Channels
  • 12-Bit (4096 Steps) Grayscale PWM Control
  • Dot Correction
    • 6 Bit (64 Steps)
    • Storable in Integrated EEPROM
  • Drive Capability (Constant-Current Sink) of 0 mA to 72 mA (–40°C to 125°C)
    • 0 mA to 60 mA (VCC < 3.6 V, –40°C to 85°C)
    • 0 mA to 120 mA (VCC > 3.6 V, –40°C to 85°C)
  • LED Power Supply Voltage up to 17 V
  • VCC = 3 V to 5.5 V
  • Serial Data Interface
  • Controlled In-Rush Current
  • 30-MHz Data Transfer Rate
  • CMOS Level I/O
  • Error Information
    • LOD: LED Open Detection
    • TEF: Thermal Error Flag
  • APPLICATIONS
    • Monocolor, Multicolor, Full-Color LED Displays
    • LED Signboards
    • Display Backlighting
    • General, High-Current LED Drive
  • SUPPORTS DEFENSE, AEROSPACE, AND MEDICAL APPLICATIONS
    • Controlled Baseline
    • One Assembly/Test Site
    • One Fabrication Site
    • Available in Q-Temp (–40°C/125°C)
    • Extended Product Life Cycle
    • Extended Product-Change Notification
    • Product Traceability

PowerPAD is a trademark of Texas Instruments.

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