Camera Zoom Motor driven by the MC34933EP - Low Voltage H=Bridge Motor Driver

Document created by edk Employee on Jul 3, 2014Last modified by Diana Torres on Apr 18, 2017
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Take a look at this demo using FRDM-KL25Z board with KIT34933EPEVBE evaluation board integrated with a LabView graphical user interface to show how NXP's low-voltage H-bridge motor driver (MC34933EP) is driving the zoom motor within a digital camera.






  • Fully integrated driver
  • Small package for portable applications
  • Built-In 2-Channel H-Bridge Driver
  • H-Bridge Operation Voltage 2.0V~7.0V
  • Output Current 1.0A @TA=25°C
  • Low Total RDS(ON) 0.8Ω (Typ), 1.0Ω (Max) @ TA=25 °C
  • Dual Channel Parallel Driver, RDS(ON) 0.4Ω (Typ). Max DC Current 1.4A
  • PWM Control Input Frequency up to 200 kHz
  • Built-In Shoot-Through Current Prevention Circuit
  • Built-In Charge Pump Circuit (External Cap type)
  • VCC Low Voltage Detection for logic power supply voltage
  • Thermal Detection for H-Bridge driver
  • This product is included in NXP’s Product Longevity Program, with assured supply for a minimum of 10 years after launch

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Development Hardware Used