TLC5924

具有点校正功能和预充电 FET 的 16 通道 LED 驱动器

The is a 16 channel constant–current sink driver. Each channel has a On/Off state and a 128–step adjustable constant current sink dot correction. The dot correction adjusts the brightness variations between LED, LED channels and other LED drivers. Both dot correction and On/Off state are accessible via a serial data interface. A single external resistor sets the maximum current of all 16 channels.

Each constant–current output has a pre–charge FET that enables an improvement in image quality of the dynamic–drive LED display.

The TLC5924 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 over–temperature condition.

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16 Channels

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Drive Capability

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0 to 80 mA Constant–Current Sink

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Constant Current Accuracy: ±1% typical

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Serial Data Interface

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Fast Switching Output: Tr / Tf = 10ns typical

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CMOS Level Input/Output

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30 MHz Data Transfer Rate

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VCC = 3.0 V to 5.5 V

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Operating Temperature = –40°C to 85°C

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LED Supply Voltage up to 17 V

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32–pin HTSSOPPowerPAD and QFN Packages

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Dot Correction

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7 bit 128 Steps

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individual adjustable for each channel

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Controlled In–Rush Current

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Pre–Charge FET

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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, Fullcolor LED Display

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Monocolor, Multicolor LED Signboard

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Display Backlighting

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Multicolor LED lighting applications

PowerPAD is a trademark of Texas Instruments.