The Texas Instruments TLC5948DBQR is a highly integrated LED driver designed to manage complex lighting solutions efficiently. This device is part of TI's extensive portfolio of LED drivers that cater to a wide range of applications, including automotive, industrial, and consumer electronics.
With a 48-channel, 16-bit ES-PWM output, the TLC5948DBQR offers precise control over the brightness and color of each connected LED, making it an ideal choice for full-color LED displays, RGB or RGBA LED lighting, and other applications requiring individual LED control. The 16-bit resolution per channel ensures smooth and fine dimming capabilities, providing designers with the flexibility to create sophisticated lighting effects.
The TLC5948DBQR operates with a supply voltage range of 3.0 V to 5.5 V, allowing for compatibility with various system architectures. Each output channel has a constant current sink that is programmable from 0 mA to 60 mA, which can be extended up to 120 mA with an external resistor, offering versatility in driving different LED configurations.
This LED driver also features an integrated 6-bit dot correction to compensate for color and brightness variations between LEDs, ensuring uniformity across the display or lighting installation. The dot correction data is stored in an onboard EEPROM, which allows for easy calibration and eliminates the need for constant reprogramming.
Communication with the TLC5948DBQR is achieved through a two-wire, I2C-compatible interface, which simplifies the connection to microcontrollers or other control units. Additionally, the device supports daisy-chaining, enabling the control of multiple TLC5948DBQRs with minimal wiring, which is particularly beneficial for large-scale LED arrays.
The device comes in a compact 32-pin TSSOP (DBQ) package, which is suitable for space-constrained applications. Texas Instruments also provides extensive technical support, including detailed datasheets, application notes, and design tools to assist developers in integrating the TLC5948DBQR into their projects effectively.