TLC5921 16-channel LED driver with 20Mhz data transfer rate

TLC5921 16-channel LED driver with 20Mhz data transfer rate

The TLC5921 is a 16-channel constant-current sink LED driver that features an input shift register, data latches, and constant current output drivers. Each output channel provides a constant current sink, adjustable through an external resistor. The device supports data transfer rates of up to 20 MHz, which makes it suitable for high-performance LED display systems. The IC operates on a daisy-chainable serial interface, allowing multiple devices to be cascaded for controlling larger LED arrays. This IC is designed for applications requiring uniform LED brightness and precise control of individual LEDs, and it eliminates the need for current-limiting resistors, reducing component count in your circuit design.

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• 16 constant-current output channels: Drives 16 individual LEDs with consistent brightness.
  

• Adjustable output current: Set via a single external resistor for all 16 channels, allowing easy control of LED brightness.
  

• High-speed serial interface: Supports data transfer rates up to 20 MHz, suitable for high-speed LED matrix displays.
  

• Constant-current control: Maintains constant current for LED brightness stability, independent of supply voltage variations.
  

• Low power dissipation: Offers energy-efficient operation by optimizing power delivery to each LED.
  

• Integrated shift register and latch: Reduces the complexity of controlling multiple LEDs, with serial-to-parallel conversion.
  

Features of TLC5921 16-channel LED driver with 20Mhz data transfer rate

• Number of Output Channels: 16.
  

• Output Current per Channel: Adjustable, up to 80 mA.
  

• Supply Voltage (Vcc): 3V to 5.5V.
  

• Data Transfer Rate: Up to 20 MHz (serial clock frequency).
  

• Output Voltage: Up to 17V.
  

• Constant-Current Accuracy: ±6% (channel-to-channel variation), ±6% (device-to-device variation).
  

Package Includes

• 1 x TLC5921 16-channel LED driver with 20Mhz data transfer rate