Automotive-qualified 100 V half-bridge gate driver features on-chip bootstrap diode

Monolithic Power Systems

The MPQ1923-AEC1 from Monolithic Power Systems, a 100 V automotive-grade half-bridge gate driver for N-channel MOSFETs, features short rise and fall times to support high-frequency switching.

The MPQ1923-AEC1 from Monolithic Power Systems is a high-frequency half-bridge gate driver that provides a protected solution for driving motors, power supplies, two-switch forward converters, and active-clamp forward converters.  


Featuring an integrated bootstrap diode, the MPQ1923-AEC1 reduces the external component count. The gate driver drives a 1 nF load with a rise time of 7.2 ns and a fall time of 5.5 ns at 12 V, making it suitable for use in high-frequency switching converters.  


The low- and high-side N-channel MOSFET driver channels are controlled independently, and are matched with a time delay of less than 5 ns. In the event of an insufficient power supply, the under-voltage lockout protection function forces the outputs to the low- and high-side MOSFETs to low.  


The MPQ1923-AEC1 is supplied in two QFN package options with ten or eight leads, both with a footprint of 4 mm x 4 mm.  


  • AEC-Q100 Grade 1 qualified  
  • 120 V bootstrap voltage rating 
  • 20 ns propagation delay 
  • 8 A sink current and 7 A source current at 12 V 
  • Less than 300 μA quiescent current  


  • Motor drivers 
  • Telecoms power supplies 
  • Avionics power supplies 

Evaluation Kit

Part supported: MPQ1923-AEC1 

Board part number: EVQ1923-RE-00A 

The EVQ1923-RE-00A evaluation board demonstrates the capabilities of the MPQ1923-AEC1, a high-frequency half-bridge gate driver that has a voltage rating of 100 V. The MPQ1923-AEC1 is intended for use in motor drivers, and in other power-control applications in telecoms servers, and avionics and industrial equipment.  


The EVQ1923-RE-00A is configured as a buck converter.  

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