Overview
The MC33035PG is a high-performance, second-generation monolithic brushless DC motor controller produced by onsemi. This device is designed to implement a full-featured, open-loop, three or four-phase motor control system. It is constructed using bipolar analog technology, offering a high degree of performance and ruggedness in hostile industrial environments. The MC33035PG includes all the active functions necessary for motor control, such as a rotor position decoder, temperature-compensated reference, frequency-programmable sawtooth oscillator, and high-current totem pole bottom drivers. It also supports the control of brush DC motors with an external MOSFET H-bridge.
Key Specifications
| Characteristic | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Operating Voltage Range (VCC) | 10 | - | 30 | V |
| Operating Voltage Range (VC) | 10 | - | 30 | V |
| Reference Output Voltage | 5.9 | 6.25 | 6.57 | V |
| Line Regulation (VCC = 10 to 30 V) | - | 1.5 | 30 | mV |
| Load Regulation (Iref = 1.0 to 20 mA) | - | 16 | 30 | mV |
| Bottom Drive Output Current (Source or Sink) | - | - | 100 | mA |
| Operating Junction Temperature | - | - | 150 | °C |
| Operating Ambient Temperature Range (MC33035) | -40 | - | 85 | °C |
| Operating Ambient Temperature Range (NCV33035) | -40 | - | 125 | °C |
Key Features
- Operates with electrical sensor phasings of 60°/300° or 120°/240°
- Efficient control of brush DC motors with external MOSFET H-bridge
- Undervoltage lockout and internal thermal shutdown
- Cycle-by-cycle current limiting with a selectable time delayed latched shutdown mode
- Unique fault output for interfacing with microprocessor-controlled systems
- Frequency-programmable sawtooth oscillator
- Fully accessible error amplifier for closed-loop servo applications
- High-current totem pole bottom drivers for driving power MOSFETs
- 60°/120° select pin for configuring rotor position decoder
- Pb-free packages available; AEC-Q100 qualified and PPAP capable for automotive applications
Applications
- Brushless DC motor control in industrial, automotive, and consumer electronics
- Control of three-phase motors and four-phase motors
- Use in open-loop and closed-loop servo applications
- Dynamic braking and forward/reverse motor control
- Applications requiring high reliability and ruggedness, such as in hostile industrial environments
Q & A
- What is the operating voltage range of the MC33035PG?
The operating voltage range for both VCC and VC is 10 to 30 volts.
- What types of sensor phasings does the MC33035PG support?
The MC33035PG supports electrical sensor phasings of 60°/300° or 120°/240°.
- Can the MC33035PG control brush DC motors?
- What protective features are included in the MC33035PG?
The device includes undervoltage lockout, cycle-by-cycle current limiting, internal thermal shutdown, and a unique fault output.
- How does the 60°/120° select pin function?
The 60°/120° select pin configures the rotor position decoder for either 60° or 120° sensor electrical phasing inputs.
- What is the purpose of the fault output?
The fault output can be interfaced into microprocessor-controlled systems to indicate fault conditions.
- What is the typical operating temperature range for the MC33035PG?
The operating ambient temperature range is -40°C to +85°C for the MC33035 and -40°C to +125°C for the NCV33035.
- Is the MC33035PG suitable for automotive applications?
- What is the function of the error amplifier in the MC33035PG?
The error amplifier is fully accessible and can be used for closed-loop servo applications.
- How does the dynamic braking function work in the MC33035PG?
