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TLC5951RTAR Datasheet(PDF) 1 Page - Texas Instruments |
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TLC5951RTAR Datasheet(HTML) 1 Page - Texas Instruments |
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1 / 50 page  VCC VLED GSSIN GSSCK GSLAT DCSIN DCSCK R IREF Controller 7 FLAGS READ XBLNK GSCKR GSCKG GCCKB GSSIN GSSCK GSLAT GSSOUT DCSOUT VCC GND TLC5951 IC1 OUTR0/G0/B0 OUTR7/G7/B7 DCSIN DCSCK XBLNK GSCKR GSCKG GSCKB IREF GSSIN GSSCK GSLAT GSSOUT DCSOUT VCC GND TLC5951 ICn OUTR0/G0/B0 OUTR7/G7/B7 DCSIN DCSCK XBLNK GSCKR GSCKG GSCKB IREF VCC R IREF . . . . . . . . . . . . . . . . . . . . . . . . Copyright © 2017, Texas Instruments Incorporated Product Folder Order Now Technical Documents Tools & Software Support & Community An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. TLC5951 SBVS127E – MARCH 2009 – REVISED JULY 2017 TLC5951 24-Channel, 12-Bit PWM LED Driver With 7-Bit Dot Correction and 3-Group, 8-Bit Global Brightness Control 1 1 Features 1 • 24-Channel Constant-Current Sink Output • Current Capability: 40 mA • Selectable Grayscale (GS) Control With PWM: 12-Bit (4096 Step), 10-Bit (1024 Step), 8-Bit (256 Step) • Three Independent Grayscale Clocks for Three Color Groups • Dot Correction (DC): 7-Bit (128 Step) • Global Brightness Control (BC) for Each Color Group: 8-Bit (256 Step) • Auto Display Repeat Function • Independent Data Port for GS and BC and DC Data • Communication Path Between Each Data Port • LED Power-Supply Voltage up to 15 V • VCC = 3 V to 5.5 V • Constant-Current Accuracy: – Channel-to-Channel = ±1.5% – Device-to-Device = ±3% • CMOS Logic Level I/O • Data Transfer Rate: 30 MHz • 33-MHz Grayscale Control Clock • Continuous Base LED-Open Detection (LOD) • Continuous Base LED-Short Detection (LSD) • Thermal Shutdown (TSD) With Auto Restart • Grouped Delay to Prevent Inrush Current • Operating Ambient Temperature: –40°C to 85°C • Packages: HTSSOP-38, QFN-40 2 Applications • Full-Color LED Displays • LED Signboards 3 Description The TLC5951 device is a 24-channel, constant- current sink driver. Each channel has an individually- adjustable, 4096-step, pulse-width modulation (PWM) grayscale (GS) brightness control and 128-step constant-current dot correction (DC). The dot correction adjusts brightness deviation between channels and other LED drivers. The output channels are grouped into three groups of eight channels. Each channel group has a 256-step global brightness control (BC) function and an individual grayscale clock input. Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) TLC5951 HTSSOP (38) 12.50 mm × 6.20 mm VQFN (40) 6.00 × 6.00 mm WQFN (40) 6.00 × 6.00 mm (1) For all available packages, see the orderable addendum at the end of the data sheet. Typical Application Circuit (Multiple Daisy-Chained TLC5951 Devices) |
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