TLC69618 Series

128 mini-LED matrix local dimming backlight driver with 60-mA 16-channel integrated current sink

Catalog

128 mini-LED matrix local dimming backlight driver with 60-mA 16-channel integrated current sink

Part	Package / Case	Voltage - Supply (Max)	Supplier Device Package	Number of Outputs	Topology	Voltage - Output	Mounting Type	Current - Output / Channel	Applications	Type	Dimming	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Supply (Min) [Min]
Texas Instruments TLC69618RTWR	24-WFQFN Exposed Pad	5.5 V	24-WQFN (4x4)	16	Constant Current	20 V	Surface Mount	60 mA	Backlight	Linear	PWM	85 °C	-40 °C	3 V
Texas Instruments TLC69618YBHR	24-BGA DSBGA	5.5 V	24-DSBGA (1.58x2.43)	16	Constant Current	20 V	Surface Mount	60 mA	Backlight	Linear	PWM	85 °C	-40 °C	3 V

Catalog

128 mini-LED matrix local dimming backlight driver with 60-mA 16-channel integrated current sink

Key Features

• Operating voltage VCC range: 3V to 5.5V16 constant current sinks with high precision:Maximum output current / voltage:30mA / 20V: TLC69602/4/860mA / 20V: TLC69612/4/830mA / 50V: TLC69652/4/860mA / 50V: TLC69662/4/8Device-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 schemesDisplay quality improvement:Minimum brightness update latencyProgrammable black insertionVariable refresh rate (VRR) without flickeringDiagnostics:LED open / short detection for each zoneDevice thermal shutdown detectionReport interface option:UART and interrupt pin (INT)Two-wire output: CLK_O and SOUTOperating voltage VCC range: 3V to 5.5V16 constant current sinks with high precision:Maximum output current / voltage:30mA / 20V: TLC69602/4/860mA / 20V: TLC69612/4/830mA / 50V: TLC69652/4/860mA / 50V: TLC69662/4/8Device-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 schemesDisplay quality improvement:Minimum brightness update latencyProgrammable black insertionVariable refresh rate (VRR) without flickeringDiagnostics: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

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. 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.