TLC5943
www.ti.com SBVS101 – DECEMBER 2007 16-Channel, 16-Bit PWM LED Driver with
7-Bit Global Brightness Control FEATURES 1 16 Channels, Constant Current Sink Output 50-mA Capability (Constant Current Sink) 16-Bit (65,536 Steps) Grayscale Control with
Enhanced Spectrum (ES) PWM 7-Bit (128 Steps) Global Brightness Control for
All Channels with Sink Current LED Power-Supply Voltage up to 17 V VCC = 3.0 V to 5.5 V Constant Current Accuracy:
– Channel-to-Channel = ±1.5%
– Device-to-Device = ±3% CMOS Level I/O 30-MHz Data Transfer Rate 33-MHz Grayscale Control Clock Auto Display Repeat Auto Data Refresh Continuous Base LED Open Detection (LOD):
– Detect LED opening and LED short to GND
during display Thermal Shutdown (TSD):
– Automatic shutdown at high temperature
conditions
– Restart under normal temperature
23 VLED SCLK
BCSEL Monochrome, Multicolor, Full-Color LED
Displays
LED Signboards
Display Backlighting DESCRIPTION
The TLC5943 is a 16-channel, constant current sink
driver. Each channel is individually adjustable with
65,536 enhanced spectrum pulse-width modulated
(PWM) steps controlled by grayscale (GS) data. All
output drivers are adjustable with 128 constant sink
current steps at same value controlled by brightness …
