TLC5940-EP Enhanced Product 16 Channel LED Driver With DOT Correction and Grayscale PWM Control |

This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.
Enhanced Product 16 Channel LED Driver With DOT Correction and Grayscale PWM Control



The TLC5940-EP 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-EP 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.


  • 16 Channels
  • 12-Bit (4096 Steps) Grayscale PWM Control
  • Dot Correction
    • 6 Bit (64 Steps)
    • Storable in Integrated EEPROM
  • Drive Capability (Constant-Current Sink) of 0 mA to 72 mA (–40°C to 125°C)
    • 0 mA to 60 mA (VCC < 3.6 V, –40°C to 85°C)
    • 0 mA to 120 mA (VCC > 3.6 V, &#ndash;40°C to 85°C)
  • LED Power Supply Voltage up to 17 V
  • VCC = 3 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
    • Monocolor, Multicolor, Full-Color LED Displays
    • LED Signboards
    • Display Backlighting
    • General, High-Current LED Drive
    • Supports Defense, Aerospace, and Medical Applications:
      • Controlled Baseline
      • One Assembly/Test Site
      • One Fabrication Site
      • Available in Q-Temp (–40°C/125°C)
      • Extended Product Life Cycle
      • Extended Product-Change Notification
      • Product Traceability

All other trademarks are the property of their respective owners


Compare all products in Signage LED display drivers Email Download to Excel
Part number Order Features Analog dimming steps Data transfer rate (Typ) (MHz) Ch to ch accuracy (Typ) (+/- %) Package Group Package size: mm2:W x L (PKG) Rating Operating temperature range (C)
TLC5940-EP Order now Error Flag
Fault Detection
LED Open Detection
Power Good    
64     30     4     HTSSOP | 28
VQFN | 32    
28HTSSOP: 43 mm2: 4.4 x 9.7 (HTSSOP | 28)
32VQFN: 25 mm2: 5 x 5 (VQFN | 32)    
HiRel Enhanced Product     -40 to 125