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The TLC5940RHBRG4 is a 16-channel constant-current sink LED driver manufactured by Texas Instruments. It features individually adjustable 4096-step grayscale PWM brightness control for each channel, enabling high-resolution dimming. The device integrates EEPROM-based DOT correction to compensate for manufacturing variations in LED forward voltage and luminous intensity. It operates within a temperature range of -40°C to 85°C and utilizes a 32-VQFN package.
Verify the specific suffix 'RG4' indicates lead-free compliance and RoHS certification as per Texas Instruments standards. Confirm the package marking matches the 32-VQFN outline drawing. Ensure the ordering part number aligns with the required temperature grade and tape-and-reel quantity specifications found in the official TI datasheet.
Select this component when 16-channel constant-current sinking with high-resolution grayscale control is required. It is suitable for applications needing integrated DOT correction to ensure visual uniformity across LEDs. Consider the VQFN package size and thermal dissipation capabilities relative to the PCB layout constraints.
This part belongs to the TLC5940 family of LED drivers from Texas Instruments. Variants such as TLC5940RHB differ primarily in packaging or compliance markings. The RHBRG4 designation specifies the reel-packaged, lead-free version of the standard TLC5940 chip, maintaining identical electrical functionality while adhering to environmental regulations.
Direct substitutes include TLC5940RHBR and TLC5940RHBG4, which share identical pinouts and electrical characteristics. Verify that any replacement maintains the same 32-VQFN footprint and operating temperature range to ensure mechanical and thermal compatibility without circuit redesign.