16-Ch ES-PWM LED Driver, 7-Bit Dot Cor, 7-Bit Global Brightness, Power Save Mode, Full Diagnostics - TLC5948A

TLC5948A (ACTIVE)

16-Ch ES-PWM LED Driver, 7-Bit Dot Cor, 7-Bit Global Brightness, Power Save Mode, Full Diagnostics

 

Description

The TLC5948A is a 16-channel, constant-current sink LED driver. Each channel has an individually-adjustable, pulse width modulation (PWM) grayscale (GS) brightness control with 65,536 steps and 128 steps of constant-current dot correction (DC). DC adjusts brightness deviation between channels. All channels have a 128-step global brightness control (BC). BC adjusts brightness deviation with other LED drivers. GS, DC, and BC data are accessible with a serial interface port.

The TLC5948A 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 DC and BC Data:
    • 2 mA to 45 mA (VCC ≤ 3.6 V)
    • 2 mA to 60 mA (VCC > 3.6 V)
  • Dot Correction (DC):
    • 7-Bit (128 Steps) with 0% to 100% Range
  • Global Brightness Control (BC):
    • 7-Bit (128 Steps) with 25% to 100% Range
  • Grayscale Control (GS) with Enhanced Spectrum or Conventional PWM:
    • 16-Bit (65,536 Steps)
  • LED Power-Supply Voltage: Up to 10 V
  • VCC: 3.0 V to 5.5 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

View more

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

Featured tools and software