TLC69654-Q1 Series
Automotive 64 mini-LED matrix local dimming backlight driver with 16-channel integrated current sink
Manufacturer: Texas Instruments
Catalog
Automotive 64 mini-LED matrix local dimming backlight driver with 16-channel integrated current sink
Key Features
• AEC-Q100 qualified for automotive applications:Device temperature grade 1: –40°C to +125°C, TADevice HBM ESD classification level 2Device CDM ESD classification level C4BFunctional Safety-Capable:Documentation available to aid functional safety system designOperating voltage VCC range: 3V to 5.5V16 constant current sinks with high precision:Maximum output current / voltage:30mA / 20V: TLC69602/4/8-Q160mA / 20V: TLC69612/4/8-Q130mA / 50V: TLC69652/4/8-Q160mA / 50V: TLC69662/4/8-Q1Device-to-device error: ±2% (typ.)Channel-to-channel error: ±2% (typ.)Flexible dimming control:Global 8-bit Maximum Current (MC) settingBrightness resolution: up to 15-bitPWM / Hybrid control modeHigh speed daisy chain interface:I/O voltage compatible with: 1.8V / 3.3VData transfer rate: up to 20MHzHigh system efficiency:Adaptive headroom voltage control (AHVC)Ultra-low device power consumption:Standby mode: ICC ≤ 200µANormal mode: ICC ≤ 3.5mAEMI enhancement:Programmable interface driving capabilityIntegrated 4 phase-shifting schemesDiagnostics:LED open / short detection for each zoneDevice thermal shutdown detectionReport interface option:UART and interrupt pin (INT)Two-wire output: CLK_O and SOUTAEC-Q100 qualified for automotive applications:Device temperature grade 1: –40°C to +125°C, TADevice HBM ESD classification level 2Device CDM ESD classification level C4BFunctional Safety-Capable:Documentation available to aid functional safety system designOperating voltage VCC range: 3V to 5.5V16 constant current sinks with high precision:Maximum output current / voltage:30mA / 20V: TLC69602/4/8-Q160mA / 20V: TLC69612/4/8-Q130mA / 50V: TLC69652/4/8-Q160mA / 50V: TLC69662/4/8-Q1Device-to-device error: ±2% (typ.)Channel-to-channel error: ±2% (typ.)Flexible dimming control:Global 8-bit Maximum Current (MC) settingBrightness resolution: up to 15-bitPWM / Hybrid control modeHigh speed daisy chain interface:I/O voltage compatible with: 1.8V / 3.3VData transfer rate: up to 20MHzHigh system efficiency:Adaptive headroom voltage control (AHVC)Ultra-low device power consumption:Standby mode: ICC ≤ 200µANormal mode: ICC ≤ 3.5mAEMI enhancement:Programmable interface driving capabilityIntegrated 4 phase-shifting schemesDiagnostics:LED open / short detection for each zoneDevice thermal shutdown detectionReport interface option:UART and interrupt pin (INT)Two-wire output: CLK_O and SOUT
Description
AI
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.
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.
