DESCRIPTION
●The TLC59284 is a 16-channel, constant-current sink light-emitting diode (LED) driver. Each channel can be individually controlled with a simple serial communications protocol that is compatible with 3.3-V or 5-V CMOS logic levels, depending on the operating VCC. When the serial data buffer is loaded, a LAT rising edge transfers the data to the OUTn 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.
●FEATURES
●• 16-Channel, Constant-Current Sink Output with On and Off Control
●• Constant-Current Sink Capability:
● – 35 mA (VCC ≤ 3.6 V)
● – 45 mA (VCC > 3.6 V)
●• LED Power-Supply Voltage: Up to 10 V
●• VCC: 3 V to 5.5 V
●• Constant-Current Accuracy:
● – Channel-to-Channel: ±1.4% (typ), ±3% (max)
● – Device-to-Device: ±2% (typ), ±4% (max)
●• CMOS Logic Level I/O
●• Data Transfer Rate: 35 MHz
●• BLANK Pulse Width: 50 ns
●• Switching Delay for Noise Reduction
●• Operating Temperature: –40°C to +85°C
●APPLICATIONS
●• Video Displays
●• Message Boards
