TLC5941

带有像点修正与灰度 PWM 控制的 16 通道 LED 驱动器

The 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.

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16 Channels

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12-Bit 4096 Steps Grayscale PWM Control

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Dot Correction

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6 Bit 64 Steps

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Drive Capability Constant-Current Sink

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0 mA to 80 mA

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LED Power Supply Voltage up to 17 V

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VCC = 3.0 V to 5.5 V

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Serial Data Interface

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Controlled In-Rush Current

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30-MHz Data Transfer Rate

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CMOS Level I/O

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Error Information

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LOD: LED Open Detection

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TEF: Thermal Error Flag

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APPLICA ONS

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Monocolor, Multicolor, Full-Color LED Displays

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LED Signboards

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Display Back-Lighting

PowerPAD is a trademark of Texas Instruments.