TLC59711

TLC59711 www.ti.com SBVS181A – OCTOBER 2011 – REVISED JULY 2012 12-Channel, 16-Bit, Enhanced Spectrum PWM, RGB, LED Driver with 3.3-V Linear Regulator and Watchdog Timer Check for Samples: TLC59711 FEATURES 1 23 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: 4.0 V to 17 V Direct power supply: 3.0 V to 5.5 V LED Supply Voltage: Up to 17 V Constant-Current Accuracy: – Channel-to-Channel = ±1% (typ), ±3% (max) – Device-to-Device = ±1% (typ), ±4% (max) Data Transfer Rate: 10 MHz (cascading) Linear Voltage Regulator: 3.3 V Auto Display Repeat Function Display Timing Reset Function Internal/External Selectable GS Clock Thermal Shutdown (TSD) with Auto Restart Unlimited Device Cascading Watchdog Timer for External Clock Failure Operating Temperature Range: –40°C to +85°C APPLICATIONS RGB LED Cluster Lamp Displays DESCRIPTION The TLC59711 is a 12-channel, constant-current 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 via a two-wire signal interface. The maximum current value for each channel is set by a s...