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TLC5942PWP Datasheet(PDF) 1 Page - Texas Instruments |
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TLC5942PWP Datasheet(HTML) 1 Page - Texas Instruments |
1 / 29 page 1 FEATURES APPLICATIONS DESCRIPTION ¼ ¼ ¼ GSDATA GSSCLK XGSLAT BLANK ERROR READ DCSCLK DCDATA XDCLAT R IREF GSSIN GSSCLK XGSLAT BLANK DCSIN DCSCLK XDCLAT IREF GSSOUT DCSOUT VCC GND VCC TLC5942 IC1 OUT0 OUT15 VLED VLED ¼ ¼ R IREF GSSIN GSSCLK XGSLAT BLANK DCSIN DCSCLK XDCLAT IREF GSSOUT VCC GND VCC TLC5942 ICn OUT0 OUT15 VLED VLED Controller forGrayscale (Outsideof LEDmodule) Controllerfor DotCorrection with Correction DataROM (Insideof LEDmodule) TLC5942 SBVS096B – OCTOBER 2007 – REVISED OCTOBER 2007 www.ti.com 16-Channel, 12-Bit PWM LED Driver with 7-Bit Dot Correction • Readable Error Information: 23 • 16 Channels, Constant Current Sink Output – LED Open Detection • 50-mA Capability (Constant Current Sink) – Thermal Error Flag (TEF) • 12-Bit (4096 Steps) Grayscale Control with • Noise Reduction: PWM – 4-Channel grouped delay to prevent inrush • 7-Bit (128 Steps) Dot Correction with Sink current Current • Operating Temperature: –40°C to +85°C • LED Power-Supply Voltage up to 17 V • Constant Current Accuracy: • Monochrome, Multicolor, Full-Color LED – Channel-to-Channel = ±1.5% Displays – Device-to-Device = ±3% • LED Signboards • VCC = 3.0 V to 5.5 V • Display Backlighting • CMOS Level I/O • 30-MHz Data Transfer Rate • 30-MHz Grayscale Control Clock The TLC5942 is a 16-channel, constant current sink • Dedicated Ports for Grayscale and Dot driver. Each channel is individually adjustable with 4096 pulse-width modulated (PWM) steps and 128 Correction constant current sink steps for dot correction. Dot • Continuous Base LED Open Detection (LOD) correction adjusts the brightness variations between • Thermal Shutdown (TSD): LEDs. Both grayscale control and dot correction are accessible via separate, dedicated serial interface – Automatic shutdown at high temperature ports. The maximum current value of all 16 channels conditions can be set by a single external resistor. – Restart under normal temperature Typical Application Circuit (Multiple Daisy-Chained TLC5942s) 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. 2 PowerPAD is a trademark of Texas Instruments, Inc. 3 All other trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Copyright © 2007, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Not Recommended for New Designs |
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