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TLC5923

Texas Instruments
Part Number TLC5923
Manufacturer Texas Instruments
Description 16-CHANNEL LED DRIVER
Published Oct 1, 2019
Detailed Description www.ti.com DAP RHB TLC5923 SLVS550B – DECEMBER 2004 – REVISED JANUARY 2013 16-CHANNEL LED DRIVER WITH DOT CORRECTION...
Datasheet PDF File TLC5923 PDF File

TLC5923
TLC5923

Overview
www.
ti.
com DAP RHB TLC5923 SLVS550B – DECEMBER 2004 – REVISED JANUARY 2013 16-CHANNEL LED DRIVER WITH DOT CORRECTION Check for Samples: TLC5923 FEATURES 1 •2 16 Channels • Drive Capability – 0 to 80 mA (Constant-Current Sink) • Constant Current Accuracy: ±1% (typical) • Serial Data Interface • Fast Switching Output: Tr / Tf = 10ns (typical) • CMOS Level Input/Output • 30 MHz Data Transfer Rate • VCC = 3.
0 V to 5.
5 V • Operating Temperature = –40°C to 85°C • LED Supply Voltage up to 17 V • 32-pin HTSSOP( PowerPAD™) and QFN Packages • Dot Correction – 7 bit (128 Steps) – individual adjustable for each channel • Controlled In-Rush Current • Error Information – LOD: LED Open Detection – TEF: Thermal Error Flag APPLICATIONS • Monocolor, Multicolor, Fullcolor LED Display • Monocolor, Multicolor LED Signboard • Display Backlighting • Multicolor LED lighting applications DESCRIPTION The TLC5923 is a 16 channel constant-current sink driver.
Each channel has a On/Off state and a 128step 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.
The TLC5923 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.
FUNCTIONAL BLOCK DIAGRAM VCC GND PGND SCLK SIN MODE 01 IREF Max.
OUTn Current 0 On/Off Input Shift Register 15 16 16 0 112 LED Open Detection (LOD) Temperature Error Flag (TEF) BLANK 10 XERR DC Input Shift Register 111 01 MODE SOUT MODE XLAT 10 LOD 0 0 On/Off Register 0 7−bit DC Register 6 LOD 1 1 On/Off Register 7 7−bit DC Register 13 BLANK Constant Current Driver Delay x0 OUT0 BLANK Constant Current Driver Delay x1 OUT1 LOD 15 15 On/Off Register 105 7...


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