The MC33035DWG is a high performance second generation monolithic brushless DC Motor Controller, contains all of the active functions required to implement a full featured open loop, three or four phase motor control system. This device consists of a rotor position decoder for proper commutation sequencing, temperature compensated reference capable of supplying sensor power, frequency programmable sawtooth oscillator, three open collector top drivers and three high current totem pole bottom drivers ideally suited for driving power MOSFETs. Also included are protective features consisting of under-voltage lockout, cycle-by-cycle current limiting with a selectable time delayed latched shutdown mode, internal thermal shutdown and an unique fault output that can be interfaced into microprocessor controlled systems. Typical motor control functions include open loop speed, forward or reverse direction, run enable and dynamic braking.
Under-voltage Lockout
6.25V 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
Pinned-out Current Sense Reference
Internal Thermal Shutdown
Selectable 60/300° or 120/240° Sensor Phasing
Can Efficiently Control Brush DC Motors with External MOSFET H-bridge
Stresses exceeding Maximum Ratings may damage the device, extended exposure to stresses above the Recommended Operating Conditions may affect device reliability.
