MC33033P 데이터 시트보기 (PDF) - Motorola => Freescale

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MC33033P

Brushless DC Motor Controller

Motorola => Freescale 

Order this document by MC33033/D

Brushless DC

Motor Controller

The MC33033 is a high performance second generation, limited feature,

monolithic brushless dc motor controller which has evolved from Motorola′s

full featured MC33034 and MC33035 controllers. It contains all of the active

functions required for the implementation of open loop, three or four phase

motor control. The device consists of a rotor position decoder for proper

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.

Typical motor control functions include open loop speed, forward or

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

• Fully Accessible Error Amplifier for Closed Loop Servo Applications

• High Current Drivers Can Control External 3–Phase MOSFET Bridge

• Cycle–By–Cycle Current Limiting

• Internal Thermal Shutdown

• Selectable 60°/300° or 120°/240° Sensor Phasings

• Also Efficiently Control Brush DC Motors with External MOSFET

H–Bridge

Device

MC33033DW

MC33033P

ORDERING INFORMATION

Operating

Temperature Range

TA = – 40° to + 85°C

Package

SO–20L

Plastic DIP

MC33033

BRUSHLESS DC

MOTOR CONTROLLER

SEMICONDUCTOR

TECHNICAL DATA

20

1

P SUFFIX

PLASTIC PACKAGE

CASE 738

20

1

DW SUFFIX

PLASTIC PACKAGE

CASE 751D

(SO–20L)

PIN CONNECTIONS

Top Drive

Output

BT 1

AT 2

Fwd/Rev 3

Sensor

Inputs

SA 4

SB 5

SC 6

Reference Output 7

Oscillator 8

Error Amp

Non Inverting Input

9

Error Amp

Inverting Input

10

20 CT

19 Output Enable

18 60°/120° Select

17 AB

16 BB

15 CB

Bottom

Drive

Outputs

14 VCC

13 Gnd

12

Current Sense

Non Inverting Input

11 Error Amp Out/

PWM Input

(Top View)

MOTOROLA ANALOG IC DEVICE DATA

© Motorola, Inc. 1996

Rev 3

1

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