Overview
The TLC59116IRHBR from Texas Instruments is a 16-channel I2C-bus controlled constant-current LED sink driver. This device is optimized for red/green/blue/amber (RGBA) color mixing and backlight applications. Each LED output features an individual 8-bit resolution (256 steps) PWM controller operating at a fixed frequency of 97 kHz, with a duty cycle adjustable from 0% to 99.6%. Additionally, a group PWM controller allows for dimming and blinking of all LEDs with the same value, using a fixed frequency of 190 Hz or an adjustable frequency between 24 Hz to once every 10.73 seconds.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Channels | 16 | - |
| Supply Voltage Range | 3 V to 5.5 V | V |
| Output Voltage Tolerance | 17 V | V |
| Output Current Range | 5 mA to 120 mA | mA |
| Individual PWM Frequency | 97 kHz | Hz |
| Group PWM Frequency | 190 Hz (fixed), 24 Hz to 10.73 s (adjustable) | Hz |
| Operating Temperature Range | -40 °C to 85 °C | °C |
| Package Types | 28-Pin TSSOP, 32-Pin QFN | - |
| Hardware Address Pins | 4 | - |
| Software-Programmable I2C Bus Addresses | One LED Group Call Address and Three LED Sub Call Addresses | - |
Key Features
- 16 constant-current output channels with individual 8-bit resolution (256 steps) PWM control.
- Supports hot insertion.
- Low standby current.
- Programmable group dimming and blinking.
- 5.5-V tolerant inputs.
- Open-load and overtemperature detection.
- Software reset feature (SWRST Call) through I2C bus.
- Output state change programmable on acknowledge or stop command.
- Output current adjustable through an external resistor.
- Four hardware address pins and software-programmable I2C bus addresses for multiple device addressing.
Applications
- Gaming consoles and peripherals.
- Small signage and display systems.
- Industrial equipment and control panels.
- Backlighting for LCD displays.
- General lighting applications requiring color mixing and dimming.
Q & A
- What is the primary function of the TLC59116IRHBR?
The TLC59116IRHBR is a 16-channel I2C-bus controlled constant-current LED sink driver optimized for RGBA color mixing and backlight applications.
- What is the range of the supply voltage for the TLC59116IRHBR?
The supply voltage range is from 3 V to 5.5 V.
- How many hardware address pins does the TLC59116IRHBR have?
The device has four hardware address pins.
- What is the frequency of the individual PWM controllers?
The individual PWM controllers operate at a fixed frequency of 97 kHz.
- Can the TLC59116IRHBR detect open-load and overtemperature conditions?
Yes, the device features open-load and overtemperature detection.
- How can the output current be adjusted?
The output current can be adjusted through an external resistor.
- What are the package types available for the TLC59116IRHBR?
The device is available in 28-Pin TSSOP and 32-Pin QFN packages.
- Can multiple TLC59116IRHBR devices be connected to the same I2C bus?
Yes, up to 14 devices can be connected to the same I2C bus using the hardware address pins and software-programmable I2C bus addresses.
- What is the purpose of the software reset feature (SWRST Call)?
The software reset feature allows the device to be reset to its default state through an I2C bus command.
- What are some common applications of the TLC59116IRHBR?
Common applications include gaming consoles, small signage, industrial equipment, backlighting for LCD displays, and general lighting applications requiring color mixing and dimming.
