TLC59282

TLC59282 www.ti.com SBVS152C – DECEMBER 2010 – REVISED OCTOBER 2011 16-Channel, Constant-Current LED Driver with 4-Channel Grouped Delay Check for Samples: TLC59282 FEATURES 1 2 16 Channels, Constant-Current Sink Output with On/Off Control Capability (Constant-Current Sink): 35 mA (VCC ≤ 3.6 V), 45 mA (VCC > 3.6 V) LED Power-Supply Voltage up to 17 V VCC = 3 V to 5.5 V Constant-Current Accuracy: – Channel-to-Channel = ±0.6% (typ), ±2% (max) – Device-to-Device = ±1% (typ), ±3% (max) Low Saturation Voltage: 0.31 V at 20 mA (typ) – TA = +25℃, One Channel On CMOS Logic Level I/O Data Transfer Rate: 35 MHz BLANK Pulse Width: 30 ns Four-Channel Grouped Delay for Noise Reduction Operating Temperature: –40°C to +85°C APPLICATIONS Video Displays Message Boards Illumination DESCRIPTION The TLC59282 is a 16-channel, constant-current sink driver. Each channel can be individually controlled via a simple serial communications protocol that is compatible with 3.3 V or 5 V CMOS logic levels, depending on the operating VCC. Once the serial data buffer is loaded, a rising edge on LATCH transfers the data to the LEDx outputs. The BLANK pin can be used to turn off all OUTn outputs during power-on and output data latching to prevent unwanted image displays during these times. The constant-current value of all 16 channels is set by a single external resistor. Multiple TLC59282s can be cascaded together to control additional LEDs from the same processor. VLED VLED...