TLC5924

TLC5924 www.ti.com DAP RHB SLVS626 – JUNE 2006 16-CHANNEL LED DRIVER WITH DOT CORRECTION AND PRE-CHARGE FET FEATURES 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 Pre-Charge FET 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 TLC5924 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) indica...