Datasheet Texas Instruments TLC5944PWPR — Ficha de datos

TLC5944 TL C5
94 4
TL C5
944 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
FEATURES 1 16 Channels, Constant Current Sink Output 60-mA Capability (Constant Current Sink) 12-Bit (4096 Steps) Grayscale Control with
PWM 6-Bit (64 Steps) Dot Correction with Sink
Current Internal Pre-Charge FET to Prevent LED
Ghosting Phenomenon on Multiplexed LED
Systems LED Power-Supply Voltage up to 15 V VCC = 3.0 V to 5.5 V Constant Current Accuracy:
– Channel-to-Channel = ±1%
– Device-to-Device = ±3% CMOS Logic Level I/O 30-MHz Data Transfer Rate 33-MHz Grayscale Control Clock Continuous Base LED Open Detection (LOD):
– Detect LED opening and LED short to GND
during display with auto output off function 23 Thermal Shutdown (TSD):
– Automatic shutdown at over-temperature
conditions
– Restart under normal temperature
Pre-Thermal Warning (PTW):
– High temperature operation alert
Readable Error Information:
– LED Open Detection (LOD)
– Thermal Error Flag (TEF)
– Pre-Thermal Warning (PTW) …