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 TLC59291
3    4.5    3    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    5.5   
16    16    16    16    16    16    16    16    16    16   
    128    128    128            128   
Serial    Serial    Serial    Serial    Serial    Serial    Serial    Serial    Serial    Serial   
33    20    30    30    30    35    35    35    35    33   
1.5    1    1    1    1    1    1    0.6    1    1   
50    80    80    80    80    35    35    45    35    50   
10    17    17    17    15    17    17    17    10    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   
    Fault Reporting
LED Open Detection
Power Good/Error Flag
Thermal Shutdown   
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   
24SSOP
24HTSSOP
24TSSOP
24VQFN   
24SSOP
24VQFN   
24SSOP
24VQFN   
24SSOP
24VQFN   
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    0.43 | 1ku    0.95 | 1ku   

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