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Controladores para LED en automóviles

TLC69668-Q1

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Controlador de retroiluminación de atenuación local de matriz de 128 mini LED automotriz con disipad

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TLC69668-Q1

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Detalles del producto

Number of channels 16 Topology Current Sink Rating Automotive Operating temperature range (°C) -40 to 125 Vin (min) (V) 3 Vin (max) (V) 5.5 Features Hybrid Dimming/Phase Shift, LED Open Detection, LED Short Detection, Local dimming, Serial interface
Number of channels 16 Topology Current Sink Rating Automotive Operating temperature range (°C) -40 to 125 Vin (min) (V) 3 Vin (max) (V) 5.5 Features Hybrid Dimming/Phase Shift, LED Open Detection, LED Short Detection, Local dimming, Serial interface
HTSSOP (PWP) 28 62.08 mm² (9.7 mm × 6.4 mm) WQFN (RTW) 24 16 mm² (4 mm × 4 mm)
  • 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: 3V to 5.5V
  • 16 constant current sinks with high precision:
    • Maximum output current / voltage:
      • 30mA / 20V: TLC69602/4/8-Q1
      • 60mA / 20V: TLC69612/4/8-Q1
      • 30mA / 50V: TLC69652/4/8-Q1
      • 60mA / 50V: 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: 1.8V / 3.3V
    • Data transfer rate: up to 20MHz
  • High system efficiency:
    • Adaptive headroom voltage control (AHVC)
    • Ultra-low device power consumption:
      • Standby mode: ICC ≤ 200µA
      • Normal mode: ICC ≤ 3.5mA
  • 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
  • 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: 3V to 5.5V
  • 16 constant current sinks with high precision:
    • Maximum output current / voltage:
      • 30mA / 20V: TLC69602/4/8-Q1
      • 60mA / 20V: TLC69612/4/8-Q1
      • 30mA / 50V: TLC69652/4/8-Q1
      • 60mA / 50V: 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: 1.8V / 3.3V
    • Data transfer rate: up to 20MHz
  • High system efficiency:
    • Adaptive headroom voltage control (AHVC)
    • Ultra-low device power consumption:
      • Standby mode: ICC ≤ 200µA
      • Normal mode: ICC ≤ 3.5mA
  • 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

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.
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* Hoja de datos TLC696x2/4/8-Q1 16-Channel, 2/4/8 Time-Multiplexing, Automotive Local Dimming Backlight LED Driver datasheet PDF | HTML 25/05/2023

Diseño y desarrollo

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Placa de evaluación

TLC69668RTWEVM — Módulo de evaluación TLC69668

El TLC69668EVM ayuda al usuario a evaluar las características del controlador LED de retroiluminación con atenuación local de matriz de mini LED TLC69668 que integra 16 disipadores de corriente constante con el tamaño correspondiente de SRAM para almacenamiento de brillo.
Productos y hardware compatibles
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
HTSSOP (PWP) 28 Ultra Librarian
WQFN (RTW) 24 Ultra Librarian
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