16-Channel, 12-Bit PWM LED Driver, 6-Bit Dot Correction with Auto Output Off Function Removed - TLC59461

TLC59461 (ACTIVE)

16-Channel, 12-Bit PWM LED Driver, 6-Bit Dot Correction with Auto Output Off Function Removed

 

Description

The TLC59461 is a 16-channel, constant current sink LED driver. Each channel is individually adjustable with 4096 pulse-width modulated (PWM) steps and 64 constant current sink steps for dot correction. The dot correction adjusts the brightness variations between LEDs. Both grayscale control and dot correction are accessible via serial interface. The maximum current value of all 16 channels can be set by a single external resistor.

The TLC59461 has two error information circuits: one for LED open detection (LOD), and a thermal error flag (TEF). LOD detects a broken or disconnected LED during display period. TEF indicates an over-temperature condition.

To allow lower power dissipation, the TLC59461 does not implement the Auto Output Off function available in the TLC5946.

Features

  • 16 Channels, Constant Current Sink Output
  • 40-mA Capability (Constant Current Sink)
  • 12-Bit (4096 Steps) Grayscale PWM Control
  • 6-Bit (64 Steps) Dot Correction
  • LED Power-Supply Voltage up to 17 V
  • VCC = 3.0 V to 5.5 V
  • Constant Current Accuracy:
    • Channel-to-Channel = ±1% (typ)
    • Device-to-Device = ±2% (typ)
  • 30-MHz Data Transfer Rate
  • 33-MHz Grayscale PWM Clock
  • Extended Serial Interface
  • CMOS Level I/O
  • Schmitt Buffer Input
  • Readable Error Information:
    • Continuous Base LED Open Detection (LOD)
    • Thermal Error Flag (TEF)
  • Noise Reduction:
    • 4-Channel Grouped Delay
  • Operating Temperature: -40°C to +85°C
  • APPLICATIONS
    • Monochrome, Multicolor, Full-Color LED Displays
    • LED Signboards
    • Display Backlighting

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Parametrics Compare all products in Signage & Large Display LED Driver

 
Special Features
Analog Dimming Steps
Data Transfer Rate (Typ) (MHz)
Ch to Ch Accuracy (Typ) (+/- %)
Rating
Operating Temperature Range (C)
Pin/Package
TLC59461 TLC5940 TLC59401 TLC5941 TLC5943 TLC5944 TLC5945 TLC5946 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   
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
Thermal Shutdown   
Error Flag
Fault Detection
LED Open Detection
Power Good
Thermal Shutdown   
64    64    64    64    128    64    64    64    64    128    128   
30    30    30    30    30    30    30    30    33    33    33   
1    1    1    1    1.5    1    1    1    1    1.5    0.6   
Catalog    Catalog    Catalog    Catalog    Catalog    Catalog    Catalog    Catalog    Catalog    Catalog    Catalog   
-40 to 85    -40 to 85    -40 to 85    -40 to 85    -40 to 85    -40 to 85    -40 to 85    -40 to 85    -40 to 85    -40 to 85    -40 to 85   
28HTSSOP    28HTSSOP
32VQFN   
28HTSSOP
32VQFN   
28HTSSOP
32VQFN   
28HTSSOP
32VQFN   
28HTSSOP
32VQFN   
28HTSSOP
32VQFN   
28HTSSOP
28TSSOP
32VQFN   
24SSOP    24HTSSOP
24SSOP   
24HTSSOP
24SSOP   

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