TI TLC59283DBQR

The TLC59283 is a 16-channel, constant-current sink light-emitting diode (LED) driver. Each channel can be controlled by a simple serial communication protocol compatible with 3.3V or 5V CMOS logic levels (depending on the operating VCC). When the serial data buffer is loaded, a rising edge of the latch pulse (LAT) transfers the data to the OUTn outputs. The BLANK pin can be used to turn off all OUTn outputs during power-up and output data latching to prevent unnecessary image display during this period. The constant current values of all 16 channels are set by a single external resistor. Each constant-current output has a pre-charge field-effect transistor (FET), which can reduce ghosting when multiplexing (dynamically) driving LED displays. Multiple TLC59283s can be cascaded together to control additional LEDs from the same processor.

• 16-channel, constant-current sink output with switch control
• Constant current sink capability: 35mA (VCC ≤ 3.6V), 45mA (VCC > 3.6V)
• LED supply voltage: up to 10V
• VCC = 3V to 5.5V
• Channel-to-channel: ±1.4% (typical), ±3% (maximum); device-to-device: ±2% (typical), ±4% (maximum)
• CMOS logic level I/O
• Data transfer rate: 35MHz
• BLANK pulse width: 50ns
• Pre-charge FET for ghosting reduction
• Grouped switching delay for noise reduction
• Operating temperature range: -40°C to +85°C

• Video monitors
• Message boards