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Texas Instruments TPS92543-Q1 Automotive LED Drivers

Texas Instruments TPS92543-Q1 Automotive LED Drivers include a synchronous BOOST controller and a monolithic synchronous buck LED driver. This buck LED driver operates with a wide 4.5V to 65V BUCK input voltage range. The TPS92543-Q1 LED driver includes two substrings of three series-connected floating-bypass FET controllers that perform LED shunt and FET dimming. This automotive LED driver is available in a 7mm x 7mm thermally enhanced 48-pin HTQFP package with a top-exposed pad. The TPS92543-Q1 device is AEC-Q100 qualified for automotive applications. This TPS92543-Q1 driver is ideal for automotive headlights and adaptive LED driving modules.

Features

  • AEC-Q100 qualified for automotive applications:
    • -40°C to 125°C ambient operating temperature Grade 1
    • Device HBM classification level H1C
    • Device CDM classification level C5
  • Functional safety-capable:
    • Documentation available to aid functional safety system design
  • 4.5V to 65V wide input voltage range
  • Synchronous Buck with integrated switches:
    • Up to 2A continuous output current with 4% accuracy
  • Synchronous BOOST controller:
    • Programmable output voltage up to 65V
  • Six floating gate drivers for shunt-FET dimming:
    • Programmable width and phase setting
    • Programmable PWM frequency
  • BOOST and BUCK spread-spectrum for EMI mitigation:
  • BUCK switch thermal protection
  • UART serial communication:
    • Internal oscillator for system clock
    • LMM compatible
  • Internal EEPROM:
    • Default settings
    • Customer calibration data

Applications

  • Automotive headlight
  • Adaptive LED driving module

Schematic

Schematic - Texas Instruments TPS92543-Q1 Automotive LED Drivers

Additional Resources

Inilathala: 2025-01-08 | Na-update: 2026-01-20