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

TLC5929
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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

Parametrics

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Part number Order Features Analog dimming steps Data transfer rate (Typ) (MHz) Ch to ch accuracy (Typ) (+/- %) Package Group Package size: mm2:W x L (PKG) Rating Operating temperature range (C)
TLC5929 Order now 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    
  33     1.5     HTSSOP | 24
SSOP | 24
VQFN | 24    
24HTSSOP: 34 mm2: 4.4 x 7.8 (HTSSOP | 24)
24SSOP: 52 mm2: 6 x 8.65 (SSOP | 24)
24VQFN: 16 mm2: 4 x 4 (VQFN | 24)    
Catalog     -40 to 85    
TLC5921 Order now LED Open Detection
ON/OFF LED Driver
Thermal Shutdown    
  20     1     HTSSOP | 32     32HTSSOP: 68 mm2: 6.2 x 11 (HTSSOP | 32)     Catalog     -20 to 85    
TLC5922 Order now ON/OFF LED Driver     128     30     1     HTSSOP | 32     32HTSSOP: 68 mm2: 6.2 x 11 (HTSSOP | 32)     Catalog     -20 to 85    
TLC5923 Order now Error Flag
Fault Detection
LED Open Detection
ON/OFF LED Driver
Power Good    
128     30     1     HTSSOP | 32
VQFN | 32    
32HTSSOP: 68 mm2: 6.2 x 11 (HTSSOP | 32)
32VQFN: 25 mm2: 5 x 5 (VQFN | 32)    
Catalog     -40 to 85    
TLC5924 Order now Error Flag
Fault Detection
LED Open Detection
ON/OFF LED Driver
Power Good    
128     30     1     HTSSOP | 32
VQFN | 32    
32HTSSOP: 68 mm2: 6.2 x 11 (HTSSOP | 32)
32VQFN: 25 mm2: 5 x 5 (VQFN | 32)    
Catalog     -40 to 85    
TLC5928 Order now Error Flag
LED Open Detection
ON/OFF LED Driver    
  35     1     HTSSOP | 24
SSOP | 24
TSSOP | 24
VQFN | 24    
24HTSSOP: 34 mm2: 4.4 x 7.8 (HTSSOP | 24)
24SSOP: 52 mm2: 6 x 8.65 (SSOP | 24)
24TSSOP: 34 mm2: 4.4 x 7.8 (TSSOP | 24)
24VQFN: 16 mm2: 4 x 4 (VQFN | 24)    
Catalog     -40 to 85    
TLC59281 Order now ON/OFF LED Driver       35     1     SSOP | 24
VQFN | 24    
24SSOP: 52 mm2: 6 x 8.65 (SSOP | 24)
24VQFN: 16 mm2: 4 x 4 (VQFN | 24)    
Catalog     -40 to 85    
TLC59282 Order now ON/OFF LED Driver       35     0.6     SSOP | 24
VQFN | 24    
24SSOP: 52 mm2: 6 x 8.65 (SSOP | 24)
24VQFN: 16 mm2: 4 x 4 (VQFN | 24)    
Catalog     -40 to 85    
TLC59283 Order now ON/OFF LED Driver
Pre-Charge FET    
  35     1     SSOP | 24
VQFN | 24    
24SSOP: 52 mm2: 6 x 8.65 (SSOP | 24)
24VQFN: 16 mm2: 4 x 4 (VQFN | 24)    
Catalog     -40 to 85    
TLC59291 Order now 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     33     1     VQFN | 24     24VQFN: 16 mm2: 4 x 4 (VQFN | 24)     Catalog     -40 to 85