TLC5971

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TLC5971 SBVS146D – AUGUST 2010 – REVISED DECEMBER 2015 TLC5971 12-Channel, 16-Bit, Enhanced Spectrum, PWM, RGB, LED Driver With 3.3-V Linear Regulator 1 Features 1 12 Constant-Current Sink Output Channels Current Capability: 60 mA Per Channel Grayscale (GS) Control With Enhanced Spectrum PWM: 16-Bit (65536 Steps) Global Brightness Control (BC): 7-Bit (128 Steps) for Each Color Group Power-Supply Voltage Range: – Internal Linear Regulator: 6 V to 17 V – Direct Power Supply: 3 V to 5.5 V LED Supply Voltage: Up to 17 V Constant-Current Accuracy: – Channel-to-Channel = ±1% (Typical) – Device-to-Device = ±1% (Typical) Data Transfer Rate: 20 MHz Linear Voltage Regulator: 3.3 V Auto Display Repeat Function Display Timing Reset Function Internal and External Selectable GS Clock Thermal Shutdown (TSD) With Auto Restart Unlimited Device Cascading Operating Temperature Range: –40°C to +85°C 2 Applications RGB LED Cluster Lamp Displays 3 Description The TLC5971 device is a 12-channel, constantcurrent sink driver. Each output channel has individually adjustable currents with 65536 PWM grayscale (GS) steps. Also, each color group can be controlled by 128 constant-current sink steps with the global brightness control (BC) function. GS control and BC are accessible through a two-wire signal interface. The maximum current value for each channel is set by a single external ...