Description
Description
The TLC5947 is a 24-channel, constant current sink LED driver. Each channel is individually adjustable with 4096 pulse-width modulated (PWM) steps. PWM control is repeated automatically with the programmed grayscale (GS) data. GS data are written via a serial interface port. The current value of all 24 channels is set by a single external resistor: The TLC5947 has a thermal shutdown (TSD) function that turns off all output drivers during an over-temperature condition. All of the output drivers automatically restart when the temperature returns to normal conditions.
Features
Data Transfer Rate:30MHz (typical)
Accuracy:+/-2% (typical)
Special Featuresinternal GS Clock;thermal Shutdown
Rating:catalog
Operating Temperature Range:-40~85 celsius
24 Channels,Constant-Current Sink Output
30mA Capability (Constant-Current Sink)
12-Bit (4096 Steps) PWM Grayscale Control
LED Power-Supply Voltage Up to 30V
VCC=3.0V to 5.5V
