Texas Instruments

Description

TLC5940 16-Channel LED Driver With DOT Correction and Grayscale PWM Control. 1 Features. 3 Description. The TLC5940 is a 16-channel, constant- current sink. 1 16 Channels. LED driver. Each channel has an individually. 12 bit (4096 Steps) Grayscale PWM Control adjustable 4096-step grayscale PWM brightness. LED Signboards. 12 bit (4096 Steps) Grayscale PWM Control. Display Backlighting. Dot Correction. General, High-Current LED Drive. 6 bit (64 Steps). Storable in Integrated EEPROM. Drive Capability (Constant-Current Sink). The TLC5940 is a 16-channel, constant-current sink. 0 mA to 60 mA ( VCC < 3.6 V). 3 Description. The TLC5940 -EP is a 16-channel, constant-current sink LED driver . Each channel has an individually adjustable 4096-step grayscale PWM brightness control and a 64-step, constant-current sink (dot correction). The dot correction adjusts the brightness variations between LED channels and other LED drivers This users guide describes the characteristics, operation, and use of the. TLC5940EVM-106 evaluation module (EVM). This EVM is designed to help the user evaluate and test the various operating modes of the TLC5940 . This users guide includes setup instructions for the hardware and software, a schematic diagram, ABSTRACT. LED drivers such as the TLC5940 provide many integrated features that require a microprocessor interface to use. When these features are not needed, the TLC5940 can be configured with a single-wire interface for simple on/off control. This provides a low-cost solution to drive multiple LEDs with tight current