1FEATURES
2• 16-Channel, Constant-Current Sink Output
with On and Off Control
• Constant-Current Sink Capability:
– 35 mA (VCC ≤ 3.6 V)
– 45 mA (V CC > 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

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.