TI TLC59283RGER

The TLC59283 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. Each constant-current output has a pre-charge fieldeffect transistor (FET) that can reduce ghosting on the multiplexing (dynamic) drive LED display. Multiple TLC59283s can be cascaded together to control additional LEDs from the same processor.

• 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
• Pre-Charge FET for Ghosting Reduction
• Grouped Switching Delay for Noise Reduction
• Operating Temperature: -40°C to +85°C

• Video Displays
• Message Boards