16-Channel, 12-Bit ES-PWM, Full Self-Diagnosis LED Driver with 7-Bit Global BC LED Lamp - TLC5949

TLC5949 (ACTIVE)

16-Channel, 12-Bit ES-PWM, Full Self-Diagnosis LED Driver with 7-Bit Global BC LED Lamp

 

Description

The TLC5949 is a 16-channel, constant-current sink LED driver. Each channel has an individually-adjustable, pulse width modulation (PWM) grayscale (GS) brightness control with 4096 steps. All channels have a 128-step global brightness control (BC). BC adjusts brightness deviation with other LED drivers. GS and BC data are accessible with a serial interface port.

The TLC5949 has six error flags: LED open detection (LOD), LED short detection (LSD), output leakage detection (OLD), reference current terminal short flag detection (ISF), pre-thermal warning (PTW), and thermal error flag (TEF). The error detection results can be read with a serial interface port.

Features

  • 16 Constant-Current Sink Output Channels
  • Sink Current Capability with
    Maximum BC Data: 2 mA to 45 mA
  • Global Brightness Control (BC):
    • 7-Bit (128 Steps) with 25% to 100% Range
  • Grayscale Control (GS) with Enhanced Spectrum or Conventional PWM:
    • 12-Bit (4096 Steps)
  • LED Power-Supply Voltage: Up to 10 V
  • VCC: 3.0 V to 3.6 V
  • Constant-Current Accuracy:
    • Channel-to-Channel: ±0.6% (typ), ±2% (max)
    • Device-to-Device: ±1% (typ), ±4% (max)
  • Data Transfer Rate: 33 MHz
  • Grayscale Control Clock: 33 MHz
  • Auto Display Repeat and Auto Data Refresh
  • Display Timing Reset
  • Power-Save Mode to Minimize VCC Current
  • LOD and LSD with Invisible Detection
    Mode (IDM)
  • Output Leakage Detection (OLD)
  • Current Reference Terminal Short Flag (ISF)
  • Thermal Shutdown (TSD) and Error Flag (TEF)
  • Pre-Thermal Warning (PTW)
  • Four-Channel Grouped Delay Switching to Prevent Inrush Current
  • Operating Temperature: –40°C to +85°C

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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
TLC5949 TLC5940 TLC59401 TLC5941 TLC5943 TLC5944 TLC5945 TLC5946 TLC59461 TLC59482 TLC5948A
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   
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   
128    64    64    64    128    64    64    64    64    64    128   
33    30    30    30    30    30    30    30    30    33    33   
0.6    1    1    1    1.5    1    1    1    1    1    1.5   
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   
24HTSSOP
24SSOP   
28HTSSOP
32VQFN   
28HTSSOP
32VQFN   
28HTSSOP
32VQFN   
28HTSSOP
32VQFN   
28HTSSOP
32VQFN   
28HTSSOP
32VQFN   
28HTSSOP
28TSSOP
32VQFN   
28HTSSOP    24SSOP    24HTSSOP
24SSOP   

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