TLC5929 16-Ch Constant Current LED Driver with 7-Bit Global Brightness, Power-Save, and Self-Diagnostics | TI.com

TLC5929 (ACTIVE)

16-Ch Constant Current LED Driver with 7-Bit Global Brightness, Power-Save, and Self-Diagnostics

16-Ch Constant Current LED Driver with 7-Bit Global Brightness, Power-Save, and Self-Diagnostics - TLC5929
 

Description

The TLC5929 is a 16-channel constant current sink LED driver. Each channel can be turned on or off by writing data to an internal register. The constant current value of all 16 channels is set by a single external resistor with 128 steps for the global brightness control (BC).

The TLC5929 has six error flags: LED open detection (LOD), LED short detection (LSD), output leakage detection (OLD), reference current terminal short detection (ISF), pre-thermal warning (PTW) and thermal error flag (TEF). In addition, the LOD and LSD functions have invisible detection mode (IDM) that can detect those errors even when the output is off. The error detection results can be read via a serial interface port.

The TLC5929 also has a power-save mode that sets the total current consumption to 10 µA (typ) when all outputs are off.

Features

  • 16 Constant-Current Sink Output Channels with On/Off Control
  • Current Capability:
    • 40 mA (VCC ≤ 3.6 V)
    • 50 mA (VCC > 3.6 V)
  • Global Brightness Control: 7-Bit (128 Steps)
  • Power-Supply Voltage Range: 3.0 V to 5.5 V
  • LED Power-Supply Voltage: Up to 10 V
  • Constant-Current Accuracy:
    • Channel-to-Channel = ±1% (typ), ±3% (max)
    • Device-to-Device = ±2% (typ), ±4% (max)
  • Data Transfer Rate: 33 MHz
  • BLANK Pulse Width: 40 ns (min)
  • LED Open Detection (LOD)/LED Short Detection (LSD) with
    Invisible Detection Mode (IDM)
  • Output Leakage Detection (OLD) Detects 3 µA Leak
  • Pre-Thermal Warning (PTW)
  • Thermal Shutdown (TSD)
  • Current Reference Terminal Short Flag (ISF)
  • Power-Save Mode with 10-µA Consumption
  • Undervoltage Lockout Sets the Default Data
  • 2-ns Delayed Switching Between Each Channel Minimizes Inrush Current
  • Operating Temperature:
    –40°C to +85°C

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Parametrics Compare all products in Signage & Large Display LED Driver

 
Features
Analog Dimming Steps
Data Transfer Rate (Typ) (MHz)
Ch to Ch Accuracy (Typ) (+/- %)
Rating
Operating Temperature Range (C)
Pin/Package
TLC5929 TLC5921 TLC5922 TLC5923 TLC5924 TLC5928 TLC59281 TLC59282 TLC59283 TLC59291
Error Flag
Fault Detection
LED Open Detection
LED Short to Ground Detection
LED Short to VLED Detection
ON/OFF LED Driver
Power Good
Thermal Shutdown    
Error Flag
Fault Detection
LED Open Detection
LED Short to Ground Detection
LED Short to VLED Detection
ON/OFF LED Driver
Power Good
Thermal Shutdown    
ON/OFF LED Driver     Error Flag
Fault Detection
LED Open Detection
ON/OFF LED Driver
Power Good    
Error Flag
Fault Detection
LED Open Detection
ON/OFF LED Driver
Power Good    
Error Flag
Fault Detection
LED Open Detection
LED Short to Ground Detection
LED Short to VLED Detection
ON/OFF LED Driver
Power Good    
Error Flag
Fault Detection
LED Open Detection
LED Short to Ground Detection
LED Short to VLED Detection
ON/OFF LED Driver
Power Good    
ON/OFF LED Driver     ON/OFF LED Driver     Error Flag
Fault Detection
LED Open Detection
LED Short to Ground Detection
LED Short to VLED Detection
ON/OFF LED Driver
Power Good
Thermal Shutdown    
    128     128     128             128    
33     20     30     30     30     35     35     35     35     33    
1.5     1     1     1     1     1     1     0.6     1     1    
Catalog     Catalog     Catalog     Catalog     Catalog     Catalog     Catalog     Catalog     Catalog     Catalog    
-40 to 85     -20 to 85     -20 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
24VQFN    
32HTSSOP     32HTSSOP     32HTSSOP
32VQFN    
32HTSSOP
32VQFN    
24HTSSOP
24SSOP
24TSSOP
24VQFN    
24SSOP
24VQFN    
24SSOP
24VQFN    
24SSOP
24VQFN    
24VQFN    

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