TI TLC59116ITPWRQ1

The TLC59116-Q1 is a 16-channel LED driver controlled by the I²C bus, which is optimized for red/green/blue/amber (RGBA) mixing and backlighting applications. Each LED output has its own 8-bit resolution (256 color levels), fixed frequency, independent PWM controller (operating at 97kHz), and adjustable duty cycle (0% to 99.6%). The independent PWM controller allows each LED to be set to a specific brightness value. The additional 8-bit resolution (256 color levels) combined PWM controller has both a fixed frequency of 190Hz, an adjustable frequency (24Hz to once every 10.73 seconds), and an adjustable duty cycle (0% to 99.6%). The combined PWM controller uses the same value to brighten or dim all LEDs. Each LED output can be set to off, on (without PWM control), or the value of its respective PWM controller (the value of the independent PWM controller and the value of the combined PWM controller). The TLC59116-Q1 operates with a power supply voltage ranging from 3V to 5.5V, and the output can withstand a voltage of 17V. LEDs can be directly connected to the outputs of the TLC59116-Q1 device. The software-programmable LED combination and three sub-call I²C bus addresses allow all or defined groups of TLC59116-Q1 devices to respond to the same I²C bus address, enabling functions such as simultaneously turning on or off LEDs of the same color or creating a chasing light effect, thereby minimizing I²C bus commands. Four hardware address pins support connecting 14 devices on the same bus. The software reset (SWRST) call allows the host to reset the TLC59116-Q1 via the I²C bus. This reset, like the power-on reset (POR), initializes the registers to their default states, setting the outputs to high level (LEDs off). In this way, all device registers can be easily and quickly reconfigured to the same state.

• 16 LED drivers (each output programmable as off, on, programmable LED brightness, or programmable group dimming and blinking with mixed LED brightness)
• 16 constant-current output channels
• 256-step (8-bit) linear programmable brightness range, LED output from fully off (default) to maximum brightness (97kHz PWM signal)
• 256-step group brightness control supporting general dimming [190Hz PWM signal, from fully off to maximum brightness (default)]
• 256-step group blinking, programmable frequency from 24Hz to 10.73s, duty cycle range 0% to 99.6%
• Four hardware address pins supporting 14 TLC59116-Q1 devices on a single I²C bus
• Four software-programmable I²C bus addresses (one LED All Call address and three LED Sub Call addresses)
• Simultaneous addressing of multiple device groups in any combination
• Software reset (SWRST Call) for device reset via I²C bus
• Up to 14 hardware-adjustable independent I²C bus addresses for individual device programming
• Open-load and overtemperature detection for individual LED fault detection
• Programmable output state change on ACK or STOP command for byte-by-byte or simultaneous all-output updates (default: change on STOP)
• Output current adjustable via external resistor
• Constant output current range: 5mA to 120mA
• Maximum output voltage: 17V
• 25MHz internal oscillator, no external components required
• 1MHz Fast-mode Plus (FMP) compatible I²C bus interface with 30mA high-drive SDA output for high-capacitance bus driving
• Internal power-on reset
• Noise filters on SCL and SDA inputs
• No glitch pulses at power-on
• Active-low reset
• Hot-insertion capable
• Low standby current
• 3.3V or 5V supply voltage
• 5.5V tolerant inputs
• 28-pin TSSOP (PW-28)
• Operating temperature range: -40°C to +105°C

• General LED lighting applications
• Center console button backlighting
• Dashboard indicator backlighting