TLC5971 12-Channel, 16-Bit ES-PWM RGB LED Driver with 3.3V Linear Regulator | TI.com

TLC5971 (ACTIVE)

12-Channel, 16-Bit ES-PWM RGB LED Driver with 3.3V Linear Regulator

12-Channel, 16-Bit ES-PWM RGB LED Driver with 3.3V Linear Regulator - TLC5971
 

Description

The TLC5971 device is a 12-channel, constant-current sink driver. Each output channel has individually adjustable currents with 65536 PWM grayscale (GS) steps. Also, each color group can be controlled by 128 constant-current sink steps with the global brightness control (BC) function. GS control and BC are accessible through a two-wire signal interface. The maximum current value for each channel is set by a single external resistor. All constant-current outputs are turned off when the IC is in an overtemperature condition.

Features

  • 12 Constant-Current Sink Output Channels
  • Current Capability: 60 mA Per Channel
  • Grayscale (GS) Control With Enhanced Spectrum
    PWM:
    16-Bit (65536 Steps)
  • Global Brightness Control (BC):
    7-Bit (128 Steps) for Each Color Group
  • Power-Supply Voltage Range:
    • Internal Linear Regulator: 6 V to 17 V
    • Direct Power Supply: 3 V to 5.5 V
  • LED Supply Voltage: Up to 17 V
  • Constant-Current Accuracy:
    • Channel-to-Channel = ±1% (Typical)
    • Device-to-Device = ±1% (Typical)
  • Data Transfer Rate: 20 MHz
  • Linear Voltage Regulator: 3.3 V
  • Auto Display Repeat Function
  • Display Timing Reset Function
  • Internal and External Selectable GS Clock
  • Thermal Shutdown (TSD) With Auto Restart
  • Unlimited Device Cascading
  • Operating Temperature Range: –40°C to +85°C
  • APPLICATIONS
    • RGB LED Cluster Lamp Displays

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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
TLC5971 TLC59711
Error Flag
Fault Detection
Internal GS Clock
LED Open Detection
PWM LED Driver
Power Good
Thermal Shutdown    
DC/DC
Error Flag
Fault Detection
Internal GS Clock
LED Open Detection
One Wire Interface
PWM LED Driver
Power Good
Shunt Regulator
Thermal Shutdown    
128     128    
20     10    
1     1    
Catalog     Catalog    
-40 to 85     -40 to 85    
20HTSSOP
24VQFN    
20HTSSOP