TLC59284DBQ

16通道恒流LED驱动器，开关延迟 16-Channel, Constant-Current LED Driver with Switching Delay

DESCRIPON

The TLC59284 is a 16-channel, constant-current sink light-emitting diode 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