Brushless DC Motor Controller

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Overview

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.

  • 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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CAD Models

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Package Type

Case Outline

MSL Type

MSL Temp (°C)

Container Type

Container Qty.

ON Target

Phase

VM Min (V)

VM Max (V)

VCC Min (V)

VCC Max (V)

IO Max (A)

IO Peak Max (A)

Control Type

Reference Price

MC33035DW

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Obsolete

CAD Model

Pb

A

H

P

SOIC−24 WB

1

235

TUBE

30

N

3

10

40

10

30

0.1

0.1

DC

Price N/A

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MC33035DWG

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Active

CAD Model

Pb

A

H

P

SOIC−24 WB

3

260

TUBE

30

Y

3

10

40

10

30

0.1

0.1

DC

$3.3271

More Details

MC33035DWR2

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Obsolete

CAD Model

Pb

A

H

P

SOIC−24 WB

1

235

REEL

1000

N

3

10

40

10

30

0.1

0.1

DC

Price N/A

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MC33035DWR2G

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Active

CAD Model

Pb

A

H

P

SOIC−24 WB

3

260

REEL

1000

Y

3

10

40

10

30

0.1

0.1

DC

$2.7726

More Details

MC33035P

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Obsolete

CAD Model

Pb

A

H

P

PDIP-24

NA

0

TUBE

15

N

3

10

40

10

30

0.1

0.1

DC

Price N/A

More Details

MC33035PG

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Obsolete

CAD Model

Pb

A

H

P

PDIP-24

NA

0

TUBE

15

N

3

10

40

10

30

0.1

0.1

DC

Price N/A

More Details

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