The TLC5951 device is a 24-channel, constant-current sink driver. Each channel has an
individually-adjustable, 4096-step, pulse-width modulation (PWM) grayscale (GS) brightness control
and 128-step constant-current dot correction (DC). The dot correction adjusts brightness deviation
between channels and other LED drivers. The output channels are grouped into three groups of eight
channels. Each channel group has a 256-step global brightness control (BC) function and an
individual grayscale clock input.
GS, DC, and BC data are accessible via a serial interface port. DC and BC can be
programmed via a dedicated serial interface port.
The TLC5951 device has three error-detection circuits for LED-open detection (LOD),
LED-short detection (LSD), and thermal error flag (TEF). LOD detects a broken or disconnected LED,
LSD detects a shorted LED, and TEF indicates an overtemperature condition.
View datasheet View product folder