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TLC5944PWPRG4 Datasheet(PDF) 1 Page - Texas Instruments |
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TLC5944PWPRG4 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 38 page TLC5944 TLC5944 1 FEATURES APPLICATIONS SIN SCLK DCSEL XLAT BLANK GSCLK SOUT XERR VUP GND VCC TLC5944 IC1 OUT0 OUT15 VCC VLED VLED SIN SCLK DCSEL XLAT BLANK GSCLK R IREF IREF SOUT TLC5944 ICn OUT0 OUT15 DATA SCLK DCSEL XLAT BLANK GSCLK FLAGS READ XERR READ VCC R IREF IREF Controller XERR VUP GND VCC VLED VLED VCC 5 ¼ ¼ ¼ LINEn LINE0 TLC5944 www.ti.com .............................................................................................................................................................. SBVS112A – JUNE 2008 – REVISED JULY 2009 16-Channel, 12-Bit PWM LED Driver with 6-Bit Dot Correction and Pre-Charge FET 23 • 16 Channels, Constant Current Sink Output • Thermal Shutdown (TSD): • 60-mA Capability (Constant Current Sink) – Automatic shutdown at over-temperature conditions • 12-Bit (4096 Steps) Grayscale Control with PWM – Restart under normal temperature • 6-Bit (64 Steps) Dot Correction with Sink • Pre-Thermal Warning (PTW): Current – High temperature operation alert • Internal Pre-Charge FET to Prevent LED • Readable Error Information: Ghosting Phenomenon on Multiplexed LED – LED Open Detection (LOD) Systems – Thermal Error Flag (TEF) • LED Power-Supply Voltage up to 15 V – Pre-Thermal Warning (PTW) • V CC = 3.0 V to 5.5 V • Noise Reduction: • Constant Current Accuracy: – 4-channel grouped delay to prevent inrush – Channel-to-Channel = ±1% current – Device-to-Device = ±3% • Operating Temperature: –40°C to +85°C • CMOS Logic Level I/O • 30-MHz Data Transfer Rate • Monochrome, Multicolor, Full-Color LED • 33-MHz Grayscale Control Clock Displays Using Multiplexing System • Continuous Base LED Open Detection (LOD): • LED Signboards Using Multiplexing System – Detect LED opening and LED short to GND during display with auto output off function Typical Application Circuit (Multiple Daisy-Chained TLC5944s) 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, Incorporated. 3 All other trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Copyright © 2008–2009, 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. |
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