TLC5940-EP中文资料具有像点校正与灰度 PWM 控制的增强型产品 16 通道 LED 驱动器数据手册TI规格书

描述 Description

The TLC5940-EP 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-EP 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.

特性 Features

• 16 Channels
• Dot Correction
• Storable in Integrated EEPROM
• Drive Capability (Constant-Current Sink) of 0 mA to 72 mA (–40°C to 125°C)
• LED Power Supply Voltage up to 17 V
• Serial Data Interface
• 30-MHz Data Transfer Rate
• Error Information
• TEF: Thermal Error Flag
• APPLICATIONS
• LED Signboards
• General, High-Current LED Drive
• Controlled Baseline
• One Fabrication Site
• Extended Product Life Cycle
• Product Traceability


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