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

TLC5929 (ACTIVE)

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

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

View more

Parametrics Compare all products in Signage/Linear

 
Data Vin (Min) (V)
Data Vin (Max) (V)
Output Channels
Analog Dimming Steps
Data Input
Data Transfer Rate (Typ) (MHz)
Ch to Ch Accuracy (Typ) (+/- %)
Per Channel Drive (mA)
LED Voltage (Max) (V)
Special Features
Rating
Operating Temperature Range (C)
Pin/Package
Approx. Price (US$)
TLC5929 TLC5921 TLC5922 TLC5923 TLC5924 TLC5928 TLC59281 TLC59282 TLC59283
3     4.5     3     3     3     3     3     3     3    
5.5     5.5     5.5     5.5     5.5     5.5     5.5     5.5     5.5    
16     16     16     16     16     16     16     16     16    
    128     128     128            
Serial     Serial     Serial     Serial     Serial     Serial     Serial     Serial     Serial    
33     20     30     30     30     35     35     35     35    
1.5     1     1     1     1     1     1     0.6     1    
50     80     80     80     80     35     35     45     35    
10     17     17     17     15     17     17     17     10    
Fault Reporting
LED Open Detection
Power Good/Error Flag
Thermal Shutdown    
Fault Reporting
LED Open Detection
Power Good/Error Flag
Thermal Shutdown    
  Fault Reporting
LED Open Detection
Power Good/Error Flag    
Fault Reporting
LED Open Detection
Power Good/Error Flag    
Fault Reporting
LED Open Detection
Power Good/Error Flag    
Fault Reporting
LED Open Detection
Power Good/Error Flag    
   
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    
24HTSSOP
24SSOP
24VQFN    
32HTSSOP     32HTSSOP     32HTSSOP
32VQFN    
32HTSSOP
32VQFN    
24SSOP
24HTSSOP
24TSSOP
24VQFN    
24SSOP
24VQFN    
24SSOP
24VQFN    
24SSOP
24VQFN    
0.85 | 1ku     1.31 | 1ku     1.42 | 1ku     1.47 | 1ku     1.58 | 1ku     0.50 | 1ku     0.43 | 1ku     0.47 | 1ku     0.55 | 1ku    

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