1 Features
• 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
• 60 mA / 20 V: TLC69612/4/8
• 30 mA / 50 V: TLC69652/4/8
• 60 mA / 50 V: TLC69662/4/8
– 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
• Display quality improvement:
– Minimum brightness update latency
– Programmable black insertion
– Variable refresh rate (VRR) without flickering
• 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:
– TV
– Monitor
– Notebook
– Tablet

3 Description
TLC696x2/4/8 devices are a family of LCD local
dimming back-light driver compatible with TLC696x0
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 diasy chain
topology and supports up to 1024 devices for more
than 32,000 local dimming zones.
To optimize system efficiency, the device equips 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 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.