TLC5921 (ACTIVE)

16-Channel LED Driver

 

Description

The TLC5921 is a current-sink constant current driver incorporating shift register and data latch. The current value at constant current output can be set by one external register. The device also incorporates thermal shutdown (TSD) circuitry which turns constant current output off when the junction temperature exceeds the limit, and LED open detection (LOD) circuitry to report the LED was disconnected.

Features

  • Drive Capability and Output Counts
    • 80 mA (Current Sink) x 16 Bits
  • Constant Current Output Range
    • 1 to 80 mA ( Current Value Setting for All Output Terminals Using External Resistor)
  • Constant Current Accuracy
    • ±1% (Typ)
    • ±4% (Max) (Maximum Error Between Bits, All Bits On)
  • Voltage Applied to Constant Current Output Terminal
    • Minimum 0.6 V (Output Current 40 mA)
    • Minimum 1 V (Output Current 80 mA)
  • Data Input
    • Clock Synchronized 1 Bit Serial Input
  • Data Output
    • Clock Synchronized 1 bit Serial Output (With Timing Selection)
  • Input/Output Signal Level...CMOS Level
  • Power Supply Voltage...4.5 V to 5.5V
  • Maximum Output Voltage...17 V (Max)
  • Data Transfer Rate...20 MHz (Max)
  • Operating Free-Air Temperature Range
    -20°C to 85°C
  • Available in 32 Pin HTSSOP DAP Package (PD=3.9 W,
    TA = 25°C)
  • LOD Function...LED Open Detection
    (Error Signal Output at LED Disconnection)
  • TSD Function...Thermal Shutdown (Turn Output Off When Junction Temperature Exceeds Limit)

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$)
TLC5921 TLC5928 TLC59281 TLC59282 TLC59283 TLC59284 TLC5929 TLC59291
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   
16    16    16    16    16    16    16    16   
              128   
Serial    Serial    Serial    Serial    Serial    Serial    Serial    Serial   
20    35    35    35    35    35    33    33   
1    1    1    0.6    1    1    1.5    1   
80    35    35    45    35    45    50    50   
17    17    17    17    10    10    10    10   
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
Thermal Shutdown   
Fault Reporting
LED Open Detection
Power Good/Error Flag
Thermal Shutdown   
Catalog    Catalog    Catalog    Catalog    Catalog    Catalog    Catalog    Catalog   
-20 to 85    -40 to 85    -40 to 85    -40 to 85    -40 to 85    -40 to 85    -40 to 85    -40 to 85   
32HTSSOP    24SSOP
24HTSSOP
24TSSOP
24VQFN   
24SSOP
24VQFN   
24SSOP
24VQFN   
24SSOP
24VQFN   
24SSOP    24HTSSOP
24SSOP
24VQFN   
24VQFN   
1.31 | 1ku    0.50 | 1ku    0.43 | 1ku    0.47 | 1ku    0.43 | 1ku    0.43 | 1ku    0.85 | 1ku    0.95 | 1ku