1 Features
• AEC-Q100 qualified for automotive applications:
– Device temperature grade 1: –40°C to +125°C,
TA
– Device HBM ESD classification level 2
– Device CDM ESD classification level C4B
• Functional Safety-Capable:
– Documentation available to aid functional safety
system design
• Operating voltage VCC range: 3 V to 5.5 V
• 16 constant current sinks with high precision:
– Maximum output current / voltage:
• 30 mA / 20 V: TLC69602/4/8-Q1
• 60 mA / 20 V: TLC69612/4/8-Q1
• 30 mA / 50 V: TLC69652/4/8-Q1
• 60 mA / 50 V: TLC69662/4/8-Q1
– Device-to-device error: ±2% (typ.)
– Channel-to-channel error: ±2% (typ.)
• Flexible dimming control:
– Global 8-bit Maximum Current (MC) setting
– Brightness resolution: up to 15-bit
– PWM / Hybrid control mode
• High speed daisy chain interface:
– I/O voltage compatible with: 1.8 V / 3.3 V
– Data transfer rate: up to 20 MHz
• High system efficiency:
– Adaptive headroom voltage control (AHVC)
– Ultra-low device power consumption:
• Standby mode: ICC ≤ 200 uA
• Normal mode: ICC ≤ 3.5 mA
• EMI enhancement:
– Programmable interface driving capability
– Integrated 4 phase-shifting schemes
• Diagnostics:
– LED open / short detection for each zone
– Device thermal shutdown detection
– Report interface option:
• UART and interrupt pin (INT)
• Two-wire output: CLK_O and SOUT

2 Applications
• LCD local dimming backlight:
– Automotive Central Information Display
– Automotive Cluster Display
– Automotive Head-up Display

3 Description
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/CLK_O which is programmable
by register.