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Texas Instruments TLC696x0/TLC696x0-Q1 8-Scan MOSFET Controllers

Texas Instruments TLC696x0/TLC696x0-Q1 8-Scan MOSFET Controllers are compatible with current-sink driver TLC696x2/4/8 to achieve 2/4/8 time-multiplexing control. Each device integrates with 16 constant current sinks for up to 8 scan MOSFETs control. The device equips with a ghost-cancellation function to eliminate upside ghosting.

The device uses an adaptive headroom voltage control scheme to control DC/DC directly to optimize system efficiency. Only the FB pin from the last device in the serial chain should be connected to DC/DC to achieve a simplified system layout. The device also integrates minimum brightness update latency, black insertion, and VRR features to improve display quality.

The Texas Instruments TLC696x0/TLC696x0-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 the register. The LTLC696x0-Q1 devices are AEC-Q100 qualified for automotive applications.

Features

  • 3V to 5.5V operating voltage VCC range
  • Flexible P-MOSFET driving options
    • Maximum driving current/sustaining voltage
      • 30mA/20V: TLC69600
      • 60mA/20V: TLC69610
      • 30mA/50V: TLC69650
      • 60mA/50V: TLC69660
    • Global 8-bit Maximum Current (MC) setting
    • Individual 8-bit Channel Current (CC) setting
  • High-speed daisy chain interface
    • I/O voltage compatible with: 1.8V/3.3V
    • Data transfer rate of up to 20MHz
  • EMI enhancement
    • Programmable interface driving capability
  • Display quality improvement
    • Minimum brightness update latency
    • Programmable black insertion
    • Variable refresh rate (VRR) without flickering
  • Diagnostics
    • Device thermal shutdown detection
    • Report interface option
      • UART and interrupt pin (INT)
      • Two-wire output: CLK_O and SOUT

Applications

  • LCD local dimming backlight
    • TV
    • Monitor
    • Notebook
    • Tablet

Datasheets

Simplified Schematic

Schematic - Texas Instruments TLC696x0/TLC696x0-Q1 8-Scan MOSFET Controllers
Publicerad: 2023-06-05 | Uppdaterad: 2024-03-20