Motorola MC33030 User Guide
Summary
The MC33033 is a high-performance monolithic brushless DC motor controller designed for efficient open loop and three/four phase semiconductor motor control applications. This manual provides comprehensive technical specifications, electrical characteristics, and operational guides necessary for system integration. It is essential reading for professional engineers and developers working on complex electro-mechanical systems who require reliable power MOSFET driving and built-in safety features like undervoltage lockout and current limiting.
Page 1 Text Content
查询MC33033供应商
Order this document by MC33033/D
BRUSHLESS DC
The MC33033 is a high performance second generation, limited feature,
monolithic brushless dc motor controller which has evolved from Motorola′s MOTOR CONTROLLER
full featured MC33034 and MC33035 controllers. It contains all of the active functions required for the implementation of open loop, three or four phase
SEMICONDUCTOR
motor control. The device consists of a rotor position decoder for proper
TECHNICAL DATA
commutation sequencing, temperature compensated reference capable of supplying sensor power, frequency programmable sawtooth oscillator, fully accessible error amplifier, pulse width modulator comparator, three open collector top drivers, and three high current totem pole bottom drivers ideally suited for driving power MOSFETs. Unlike its predessors, it does not feature separate drive circuit supply and ground pins, brake input, or fault output signal. Included in the MC33033 are protective features consisting of undervoltage lockout, cycle–by–cycle current limiting with a selectable time delayed latched shutdown mode, and internal thermal shutdown.
P SUFFIX PLASTIC PACKAGE
Typical motor control functions include open loop speed, forward or
CASE 738
reverse direction, and run enable.The MC33033 is designed to operate brushless motors 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
DW SUFFIX PLASTIC PACKAGE
Fully Accessible Error Amplifier for Closed Loop Servo Applications
CASE 751D High Current Drivers Can Control External 3–Phase MOSFET Bridge (SO–20L)
Cycle–By–Cycle Current Limiting Internal Thermal Shutdown
PIN CONNECTIONS
Selectable 60°/300° or 120°/240° Sensor Phasings Also Efficiently Control Brush DC Motors with External MOSFET
BTTop Drive CT
H–Bridge
Output
AT Output Enable2
60°/120° Select Fwd/Rev
SA AB
SB 5Sensor BB Drive
Inputs
Outputs
SC CB
ORDERING INFORMATION
Operating
Reference Output VCC
Device Temperature Range Package
Oscillator Gnd
MC33033DW SO–20L
TA –40° to +85°C Error Amp Current Sense
MC33033P Plastic DIP Non Inverting Input
Non Inverting Input
Error Amp Error Amp Out/ Inverting Input PWM Input
(Top View)
Motorola, Inc. 1996 Rev 3
1MOTOROLA ANALOG IC DEVICE DATA
Page Summary Contents For Motorola MC33030 User Guide
Manual Details
| Brand | Motorola |
|---|---|
| Pages | 24 |
| File Size | 536.05 KB |
| Published | May 27, 2026 |
Enter the captcha to get the download link:
Frequently Asked Questions
What motor types can the MC33033 control?
It is designed for brushless motors with sensor phasings of 60°/300° or 120°/240°, and it can also efficiently control brush DC motors.
What protective features does the MC33033 include?
The device includes undervoltage lockout, cycle–by–cycle current limiting (with delayed shutdown), and internal thermal shutdown.
What is the recommended operating voltage range?
The MC33033 is designed to operate between 10 V and 30 V.
How can I configure the sensor phasings?
You must select between 60°/300° or 120°/240° sensor phasings, which are selectable on the device.