TLC59116IRHBR 16-Channel LED Driver: Features and Datasheet

The TLC59116IRHBR  is a 16  -channel LED  driver with an I²C interface that is optimized for red/green/blue/amber (RGBA) color mixing and backlighting. Each LED output has its own fixed-frequency individual PWM  controller with an 8  -bit resolution (256 steps) that runs at 97  kHz with a duty cycle range of 0  % to 99.6  %. Each LED  can be tuned to a different brightness level using the individual PWM  controller. A group PWM  controller with an additional 8  -bit resolution (256 steps) includes a fixed frequency of 190  Hz and an adjustable frequency between 24  Hz and once every 10.73  seconds, as well as a duty cycle that can be adjusted from 0  % to 99.6  %. The group PWM  controller dims or blinks all of the LED  s at the same time with the same value.

• Four hardware address pins  allow 14   TLC59116 devices to be connected to the same I²C bus

• Software reset feature  (SWRST call) allows the device  to be reset through the I²C-bus

• Open-load and over-temperature detection mode to detect individual LED errors 

• Output current adjusted through an external resistor

• 25MHz internal oscillator requires no external components

• Internal power-on reset

• Noise filter on SCL  and SDA  inputs

• No glitch on power-up

• Active-low reset

• Supports hot insertion

• Low standby current consumption 

• 5V Tolerant input

• Green product and no Sb/Br

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Texas Instruments Incorporated (TI) is an American technology company based in Dallas, Texas, that designs and manufactures semiconductors and integrated circuits for electronic designers and manufacturers around the world. Based on sales volume, it is one of the top ten semiconductor companies in the world. Analog chips and embedded processors, which account for more than 80  % of the company's revenue, are the company's main focus. TI also makes calculators, microcontrollers, and multi-core processors, as well as TI digital light processing technology and education technology,  As of 2016, the company had 45,000  patents worldwide.

1. Open-Circuit Detection 

The TLC59116IRHBR   LED  open-circuit detection compares the effective current level I_OUT with the open load detection threshold current I_OUT,Th.

2. Over-temperature Detection  and Shutdown 

The TLC59116IRHBR   LED  is equipped with a global over-temperature sensor and 16 individual channel-selective over-temperature sensors. When the global sensor reaches the trip temperature, all output channels are shut down, and the error status

is stored in the internal Error Status register of every channel.

3. Power-On Reset (POR)

When power is applied to VCC, an internal power-on reset holds the TLC59116IRHBR  in a reset condition until VCC reaches VPOR. At this point, the reset condition is released and the TLC59116IRHBR   registers and I2C  bus state machine are initialized to their default states (all zeroes), causing all the channels to be deselected. Thereafter, VCC must be lowered below 0.2 V to reset the device.

4. External Reset

A reset can be accomplished by holding the RESET pin low for a minimum of tW. The TLC59116IRHBR   registers and I2C state machine are held in their default states until the RESET input is again high. This input requires a pull-up resistor to VCC if no active connection is used.

5. Software Reset

The Software Reset  Call (SWRST Call) allows all the devices in the I2C  bus to be reset to the power-up state value through a specific I2C  bus command.

6. Individual Brightness Control With Group Dimming/Blinking

A 97-kHz fixed-frequency signal with a programmable duty cycle (8 bits, 256 steps) is used to control the individual brightness for each LED,