Automotive, 8-channel local-dimming backlight LED Driver with safety-zone reporting

The TLC69623-Q1 is a

LED driver with 8 constant current sink channels which could provide

up to 16-bit individual pixel-level LED PWM control. The additional

7-bit dot correction (DC) is also implemented to each channel to

control peak current. Each device shares data stream by cascaded

serial interface (CSI) which supports up to 511 devices

connection. The interface is software compatible with LED drivers in the same

group which can be applied to different application

scenarios based on LED current and total LED number.

To optimize overall systematic power efficiency,

the device is equipped with adaptive headroom voltage control (AHVC)

scheme to optimize headroom voltage across each channel and device.

Only the OUT7 pin from the last device of daisy chain is required to

be programmed as FB pin to optimize LED supply voltage from

DC/DC.

The TLC69623-Q1 is

equipped diagnostics for LED, current sink, communication and

device.