MC33035: Brushless DC Motor Controller
The MC33035 is a high performance second generation monolithic brushless DC motor controller containing 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 undervoltage lockout, cycle-by-cycle current limiting with a selectable time delayed latched shutdown mode, internal thermal shutdown, and a 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. The MC33035 is designed to operate with electrical sensor phasings of 60° /300° or 120° /240° , and can also efficiently control brush DC motors.
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
- Pinned-Out Current Sense Reference
- Internal Thermal Shutdown
- Selectable 60° /300° or 120° /240° Sensor Phasings
- Can Efficiently Control Brush DC Motors with External MOSFET H-Bridge
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Application Notes (1)
Package Drawings (2)
Data Sheets (1)
Order Information
| Product | Status | Compliance | Package | MSL* | Container | Budgetary Price/Unit |
|---|
| MC33035DWG | Active | Pb-free
Halide free | SOIC-24 | 751E-04 | 3 | Tube | 30 | $2.0933 |
| MC33035DWR2G | Active | Pb-free
Halide free | SOIC-24 | 751E-04 | 3 | Tape and Reel | 1000 | $2.0933 |
| MC33035PG | Last Shipments | Pb-free
Halide free | PDIP-24 | 724-03 | NA | Tube | 15 | |
| MC33035DW | Last Shipments | | SOIC-24 | 751E-04 | 1 | Tube | 30 | |
| MC33035DWR2 | Last Shipments | | SOIC-24 | 751E-04 | 1 | Tape and Reel | 1000 | |
| MC33035P | Last Shipments | | PDIP-24 | 724-03 | NA | Tube | 15 | |
Specifications
| Product | Phase | VM Min (V) | VM Max (V) | VCC Min (V) | VCC Max (V) | IO Max (A) | IO Peak Max (A) | Control Type | Current Sense | Regulator Output | Fault Detection |
|---|
| MC33035DWG | | 10 | 40 | 10 | 30 | 0.1 | 0.1 | | External Resistor | Yes | Thermal |
| MC33035DWR2G | | 10 | 40 | 10 | 30 | 0.1 | 0.1 | | External Resistor | Yes | Thermal |
