Automotive 64 mini-LED matrix local dimming backlight driver with 16-channel integrated current sink | PWP | 28 | -40 to 125

The TLC696x8-Q1 is a family of LCD local dimming

backlight driver compatible with TLC696x0-Q1 which is a scan MOSFET controller to achieve 2/4/8 time-multiplexing

control. Each device integrates 16 constant current sinks with corresponding size of SRAM

for brightness storage. The device connects to each other by two-wire serial interface in

daisy chain topology and supports up to 1024 devices for more than 32,000 local dimming

zones.

To optimize system efficiency, the device is

equipped with adaptive headroom voltage control scheme to directly control DC/DC. Only the

FB pin from last device in serial chain should be connected to DC/DC to achieve simplified

system layout. The device also integrates minimum brightness update latency, black insertion

and VRR features to improve display quality.

TLC696x2/4/8-Q1 has three error flags: LED open detection (LOD), LED short detection (LSD)

and thermal shutdown detection (TSD) for diagnostic. The device implements two options for

readback including UART/INT and SOUT/CLKO which is programmable by register.