Brushless DC Motor Controller

The MC33033 is a high performance second generation, limited feature, monolithic brushless dc motor controller which has evolved from ON Semiconductor’s full featured MC33034 and MC33035 controllers. It contains all of the active functions required for the implementation of open loop, three or four phase motor control.

FEATUREs
• 10 to 30 V Operation
• Undervoltage Lockout
• 6.25 V Reference Capable of Supplying Sensor Power
• Fully Accessible Error Amplifier for Closed Loop Servo
   Applications
• High Current Drivers Can Control External 3−Phase MOSFET
   Bridge
• Cycle−By−Cycle Current Limiting
• Internal Thermal Shutdown
• Selectable 60°/300° or 120°/240° Sensor Phasings
• Also Efficiently Control Brush DC Motors with External MOSFET
   H−Bridge
• NCV Prefix for Automotive and Other Applications Requiring Site
   and Control Changes
• Pb−Free Packages are Available