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Product Information

  • Application Sub Type: Switch
  • Features: Overcurrent Limiting via Internal Constant-Off-Time PWM, Output Short Circuit Protection
  • Kit Application Type: Power Management
  • Kit Contents: Board, Cables, Software
  • SVHC: No SVHC (17-Dec-2014)
  • Silicon Core Number: MC33926
  • Silicon Manufacturer: Freescale


The Evaluation Kit features the 33926, which is a monolithic H-Bridge Power IC designed primarily for automotive electronic throttle control, but is applicable to any low-voltage DC servo motor control application within the current and voltage limits. The 33926 is able to control inductive loads with currents up to 5.0 A peak. RMS current capability is subject to the degree of heatsinking provided to the device package. Internal peak-current limiting (regulation) is activated at load currents above 6.5 A ± 1.5 A. Output loads can be pulse width modulated at frequencies up to 20 kHz. A load current feedback feature provides a proportional (0.24% of the load current) current output suitable for monitoring by a microcontroller's A/D input. A Status Flag output reports under voltage, over current, and over temperature fault conditions.


  • Over current Limiting via Internal Constant-Off-Time PWM
  • Output Short Circuit Protection
  • Temperature-Dependant Current-Limit Threshold Reduction
  • All Inputs have an Internal Source/Sink to Define the Default (Floating Input) States
  • Sleep Mode with Current Draw 50 µA
  • 8V to 28V continuous operation (transient operation from 5V to 40V)
  • 3V and 5V TTL / CMOS logic compatible inputs
  • Over current limiting (regulation) via internal constant off time PWM
  • All Inputs have an internal source/sink to define the default (floating input) states
  • Sleep mode with current draw 50µA (with inputs floating or set to match default logic states)


  • Embedded Design & Development
  • Motor Drive & Control
  • Automotive


Assembled and tested evaluation board/module in anti-static bag, Ribbon cable assembly with 16-pin connector.

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