TLC5940PWP LED Driver TLC5940;SMD SMT TLC5940NT IC Chip


Product Details
Manufacturer Texas Instruments
Model TLC5940PWP; TLC5940
Quantity 5pc

Technical Details
Datasheet
Package Type
 HTSSOP
Number of Pins
 28
Supply Voltage
 3V - 5.5V DC
Supply Current
 1 - 60mA

Product Information
Although TLC5940NT and TLC5940PWP are functionally identical,  TI decided to give the SMT part a different pinout.  Therefore, this item will not work for those who have circuit boards made based on the TLC5940NT (but will in all other situations). 

Description

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.

The TLC5940 features two error information circuits. The LED open detection (LOD) indicates a broken or disconnected LED at an output terminal. The thermal error flag (TEF) indicates an overtemperature condition.

Features

  • 16 Channels
  • 12-Bit (4096 Steps) Grayscale PWM Control
  • Dot Correction
    • 6 Bit (64 Steps)
  • Drive Capability (Constant-Current Sink)
    • 0 mA to 80 mA
  • LED Power Supply Voltage up to 17 V
  • VCC = 3.0 V to 5.5 V
  • Serial Data Interface
  • Controlled In-Rush Current
  • 30-MHz Data Transfer Rate
  • CMOS Level I/O
  • Error Information
    • LOD: LED Open Detection
    • TEF: Thermal Error Flag
  • APPLICATIONS
    • Monocolor, Multicolor, Full-Color LED Displays
    • LED Signboards
    • Display Back-Lighting