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TLC5940NT 16 channel PWM LCD driver - adjustable constant current output

Manufacturer: Texas Instruments
Product Code: TLC5940NT
Availability: In Stock
FastFind: 237976



The TLC5940 is a 16-channel, constant-current sink LED driver. Each channel has an individually adjustable 4096-step grayscale PWM brightness control and a 64-step, constant-current sink (dot correction). The dot correction adjusts the brightness variations between LED channels and other LED drivers. The dot correction data is stored in an integrated EEPROM. Both grayscale control and dot correction are accessible via a serial interface. A single external resistor sets the maximum current value of all 16 channels.

  • 16 channels
  • 12-bit (4096 step) grayscale PWM control
  • Dot Correction - 6 bit (64 steps) - stored in integrated EEPROM
  • Constant Current Sink Drive capability:
    • VCC < 3.6V: 0 to 60mA per channel
    • VCC > 3.6V: 0 to 120mA per channel
  • LED power supply voltage up to 17V
  • Logic power supply voltage between 3V and 5.5V
  • Serial data interface - SPI compatible
  • Up to 30MHz data transfer rate
  • CMOS voltage level I/O

Please note that this device is designed to be used to sink current - not to source it.

For more information, please see the TLC5940 datasheet.

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