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
• NCV Prefix for Automotive and Other Applications Requiring Site and Control Changes
• Pb−Free Packages are AvailablePinout
Specifications
|
Rating |
Symbol |
Value |
Unit |
| Power Supply Voltage |
VCC |
40 |
V |
Digital Inputs (Pins 3, 4, 5, 6, 22, 23)
|
- |
Vref |
V |
| Oscillator Input Current (Source or Sink) |
IOSC |
30 |
mA |
Error Amp Input Voltage Range
(Pins 11, 12, Note 1) |
VIR |
−0.3 to Vref |
V |
Error Amp Output Current
(Source or Sink, Note 2) |
IOut |
10 |
mA |
| Current Sense Input Voltage Range (Pins 9, 15) |
VSense |
−0.3 to 5.0 |
V |
| Fault Output Voltage |
VCE(Fault ) |
20 |
A |
| Fault Output Sink Current |
ISink(Fault ) |
20 |
mA |
| Top Drive Voltage (Pins 1, 2, 24) |
VCE(top) |
40 |
A |
| Top Drive Sink Current (Pins 1, 2, 24) |
ISink(top) |
50 |
mA |
| Bottom Drive Supply Voltage (Pin 18) |
VC |
30 |
V |
| Bottom Drive Output Current (Source or Sink, Pins 19, 20, 21) |
IDRV |
100 |
mA |
Power Dissipation and Thermal Characteristics
P Suffix, Dual In Line, Case 724
Maximum Power Dissipation @ TA = 85°C
Thermal Resistance, Junction−to−Air
DW Suffix, Surface Mount, Case 751E
Maximum Power Dissipation @ TA = 85°C
Thermal Resistance, Junction−to−Air
|
PD
RJA
PD
RJA |
867
75
650
100 |
mW
/W
mW
/W |
| Operating Junction Temperature |
TJ |
+150 |
|
Operating Ambient Temperature Range (Note 3)
MC33035
NCV33035 |
TA |
−40 to +85
−40 to +125 |
|
| Storage Temperature Range |
Tstg |
65 to +150 |
|
DescriptionThe 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. MC33035 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 of MC33035 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.
The MC33035 has the following features including (1)6.25 V Reference Capable of Supplying Sensor Power;(2)Fully Accessible Error Amplifier for Closed Loop Servo Applications;(3)High Current Drivers Can Control External 3-Phase MOSFET Bridge;(4)Can Efficiently Control Brush DC Motors with External MOSFET H-Bridge;(5)NCV Prefix for Automotive and Other Applications Requiring Site and Control Changes;(6)Pb-Free Packages are Available.
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. MC33035 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.
The MC33035 is one of a series of high performance monolithic DC brushless motor controllers produced by Motorola. It contains all of the functions required to implement a full-featured, open loop, three or four phase motor control system. In addition, the controller can be made to operate DC brush motors. Constructed with Bipolar Analog technology, it offers a high degree of performance and ruggedness in hostile industrial environments. The MC33035 contains a rotor position decoder for proper commutation sequencing, a temperature compensated reference capable of supplying a sensor power, a frequency programmable sawtooth oscillator, a fully accessible error amplifier, a pulse width modulator comparator, three open collector top drive outputs, and three high current totem pole bottom driver outputs ideally suited for driving power MOSFETs.Included in the MC33035 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 easily be interfaced to a microprocessor controller.
MC33035 Data Sheet
