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Glow Plug Current Controller

The DA29020 is a 5-channel driver for external high-side switches with integrated charge-pump. It is intended for PWM operation controlled by an external uC.

The SPI interface provides a variety of configuration options to optimize EMC performance.

The built in 10-Bit ADC allows for measurements of channel currents, various interface voltages and the die temperature.

The integrated programmable short-circuit protection, over- and under- voltage detection and overtemperature shut-down protect the chip and the load.

Operation in harsh environments including ground-shift, ground-loss, strong supply-transients, polarity reversal and a wiring-harness with significant inductance is supported.

A programmable high-voltage control-input and a high-voltage diagnosis-output provide connection to the environment.

Low-power sleep mode and different selectable wake-up mechanisms help to reduce the system-level power consumption.


  • Integrated reverse battery protection
  • AEC-Q100 qualification
  • 10 Bit-ADC
  • Typ. 14 V supply, 30 V max.
  • Over / under voltage detection
  • Over temperature protection
  • Integrated gate driver with charge pump
  • LDO and SPI interface to external controller
  • Integrated gate driver with charge pump
  • TQFP48 package with exposed pad


  • Diagnosis interface
  • Glow plug current measurement with total accuracy 3.5 %
  • Integrated short circuit protection
  • Digital measurement of Tj


  • Adaptive glow plug control system for diesel engines
  • PTC heater control


Product Briefs and Summaries

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