TLC5941数据手册集成电路（IC）的LED驱动器规格书PDF

描述 Description

The TLC5941 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. 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 TLC5941 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
• 12-Bit (4096 Steps) Grayscale PWM Control
• Dot Correction
• 6 Bit (64 Steps)

• Drive Capability (Constant-Current Sink)
• 0 mA to 80 mA

• LED Power Supply Voltage up to 17 V
• VCC = 3.0 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 Back-Lighting

PowerPAD is a trademark of Texas Instruments.