16-Channel LED Driver with Dot Correction and Grayscale PWM Control - TLC59401

TLC59401 (ACTIVE)

16-Channel LED Driver with Dot Correction and Grayscale PWM Control

 

Description

The TLC59401 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. 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 TLC59401 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 over-temperature 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 (VCC ≤ 3.6 V)
    • 0 mA to 120 mA (VCC > 3.6 V)
  • LED Power-Supply Voltage up to 17 V
  • VCC = 3.0 V to 5.5 V
  • Serial Data Interface
  • Controlled Inrush 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

PowerPAD is a trademark of Texas Instruments Incorporated.
All other trademarks are the property of their respective owners.

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Special Features
Analog Dimming Steps
Data Transfer Rate (Typ) (MHz)
Ch to Ch Accuracy (Typ) (+/- %)
Rating
Operating Temperature Range (C)
Pin/Package
TLC59401 TLC5940 TLC5941 TLC5943 TLC5944 TLC5945 TLC5946 TLC59461 TLC59482 TLC5948A TLC5949
Error Flag
Fault Detection
LED Open Detection
Power Good   
Error Flag
Fault Detection
LED Open Detection
Power Good   
Error Flag
Fault Detection
LED Open Detection
Power Good   
Error Flag
Fault Detection
LED Open Detection
Power Good
Thermal Shutdown   
Error Flag
Fault Detection
LED Open Detection
Power Good
Thermal Shutdown   
Error Flag
Fault Detection
LED Open Detection
Power Good   
Error Flag
Fault Detection
LED Open Detection
Power Good   
Error Flag
Fault Detection
LED Open Detection
Power Good   
  Error Flag
Fault Detection
LED Open Detection
Power Good
Thermal Shutdown   
Error Flag
Fault Detection
LED Open Detection
Power Good
Thermal Shutdown   
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1    1    1    1.5    1    1    1    1    1    1.5    0.6   
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28HTSSOP
32VQFN   
28HTSSOP
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28HTSSOP
32VQFN   
28HTSSOP
32VQFN   
28HTSSOP
32VQFN   
28HTSSOP
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28HTSSOP
28TSSOP
32VQFN   
28HTSSOP    24SSOP    24HTSSOP
24SSOP   
24HTSSOP
24SSOP