MC33033_07 ONSEMI [ON Semiconductor], MC33033_07 Datasheet

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MC33033_07

Manufacturer Part Number
MC33033_07
Description
Brushless DC Motor Controller
Manufacturer
ONSEMI [ON Semiconductor]
Datasheet
MC33033, NCV33033
Brushless DC
Motor Controller
feature, monolithic brushless dc motor controller which has evolved
from ON Semiconductor’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
predecessors, it does not feature separate drive circuit supply and
ground pins, brake input, or fault output signal.
undervoltage lockout, cycle−by−cycle current limiting with a
selectable time delayed latched shutdown mode, and internal thermal
shutdown.
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.
Features
© Semiconductor Components Industries, LLC, 2007
January, 2007 − Rev. 9
The MC33033 is a high performance second generation, limited
Included in the MC33033 are protective features consisting of
Typical motor control functions include open loop speed, forward or
Applications
Bridge
H−Bridge
and Control Changes
10 to 30 V Operation
Undervoltage Lockout
6.25 V Reference Capable of Supplying Sensor Power
Fully Accessible Error Amplifier for Closed Loop Servo
High Current Drivers Can Control External 3−Phase MOSFET
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
NCV Prefix for Automotive and Other Applications Requiring Site
Pb−Free Packages are Available
1
See detailed ordering and shipping information in the package
dimensions section on page 25 of this data sheet.
See general marking information in the device marking
section on page 25 of this data sheet.
Non Inverting Input
Reference Output
Top Drive
Sensor
Inverting Input
DW SUFFIX
CASE 751D
Inputs
Output
CASE 738
DEVICE MARKING INFORMATION
P SUFFIX
PDIP−20
SO−20L
Error Amp
Error Amp
Oscillator
Fwd/Rev
ORDERING INFORMATION
S
S
S
PIN CONNECTIONS
B
A
http://onsemi.com
C
A
B
T
T
10
1
2
3
4
5
6
7
8
9
(Top View)
Publication Order Number:
20
20
19
18
17
16
15
14
13
12
11
20
1
C
Output Enable
60°/120° Select
A
B
C
V
Gnd
Current Sense
Non Inverting Input
Error Amp Out/
PWM Input
T
B
B
B
CC
MC33033/D
Bottom
Drive
Outputs
1

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MC33033_07 Summary of contents

Page 1

MC33033, NCV33033 Brushless DC Motor Controller The MC33033 is a high performance second generation, limited feature, monolithic brushless dc motor controller which has evolved from ON Semiconductor’s full featured MC33034 and MC33035 controllers. It contains all of the active functions ...

Page 2

FWR/REV 60°/120° Enable Undervoltage V CC Reference Regulator Speed Set Error Amp Thermal Faster Shutdown PWM R T Oscillator C T This device contains 266 active transistors. Figure 1. Representative Schematic Diagram MC33033, NCV33033 Rotor Position Decoder Lockout R Q ...

Page 3

MAXIMUM RATINGS Power Supply Voltage Digital Inputs (Pins 18, 19) Oscillator Input Current (Source or Sink) Error Amp Input Voltage Range Error Amp Output Current Current Sense Input Voltage Range Top Drive Voltage (Pins 1, 2, ...

Page 4

ELECTRICAL CHARACTERISTICS (V Characteristic REFERENCE SECTION Reference Output Voltage (I = 1.0 mA) ref T = 25°C A (Note 4) Line Regulation ( ref Load Regulation ( ...

Page 5

ELECTRICAL CHARACTERISTICS (continued) (V Characteristic OSCILLATOR SECTION Oscillator Frequency Frequency Change with Voltage ( Sawtooth Peak Voltage Sawtooth Valley Voltage LOGIC INPUTS Input Threshold Voltage (Pins 18, 19) High ...

Page 6

100 1.0 10 100 R , TIMING RESISTOR (kΩ) T Figure 2. Oscillator Frequency versus Timing Resistor ...

Page 7

− 25°C A − REFERENCE OUTPUT SOURCE CURRENT (mA) ref Figure 8. Reference Output Voltage ...

Page 8

1 25° ns/DIV Figure 14. Top Drive Output Waveform ...

Page 9

Pin Symbol Fwd//Rev Reference Output 8 Oscillator 9 Error Amp Noninverting Input 10 Error Amp Inverting ...

Page 10

INTRODUCTION The MC33033 is one of a series of high performance monolithic dc brushless motor controllers produced by ON Semiconductor. It contains all of the functions required to implement a limited−feature, open loop, three or four phase motor control system. ...

Page 11

MC33033, NCV33033 Sensor Inputs Forward/Revers 60°/120° Select Output Enable Reference Regulator Reference Output 7 Noninv. Input ...

Page 12

Inputs (Note 2) Sensor Electrical Phasing (Note 4) 60° 120° ...

Page 13

V. If one or both of the comparators detects an undervoltage condition, the top drives are turned off and the Capacitor C T Error Amp Out/ PWM Input ...

Page 14

R C 100 mV The addition of the RC filter will eliminate current−limit instability caused by the leading edge spike on the current waveform. Resistor R should be a low inductance type. S Figure 25. Current ...

Page 15

Enable Increase Speed 11 C Resistor R with capacitor C sets the acceleration time constant while R 1 controls the deceleration. The values of R and greater than the ...

Page 16

RC filter in series with the Current Sense Input. Using a low inductance type resistor for R will also aid in spike S reduction. Figure 36 shows the commutation waveforms over two electrical cycles. The first cycle (0° to ...

Page 17

S A Sensor Inputs S B 60°/120° Select Pin S Open C Code 100 110 S A Sensor Inputs S B 60°/120° Select Pin S Grounded C Code 100 110 A T Top Drive B T Outputs C ...

Page 18

Figure 37 shows a three phase, three step, half wave motor controller. This configuration is ideally suited for automobile and other low voltage applications since there is only one power switch voltage drop in series with a given 4 5 ...

Page 19

Three Phase Closed Loop Controller The MC33033, by itself, is capable of open loop motor speed control. For closed loop speed control, the MC33033 requires an input voltage proportional to the motor speed. Traditionally this has been accomplished by means ...

Page 20

Sensor Phasing Comparison There are four conventions used to establish the relative phasing of the sensor signals in three phase motors. With six step drive, an input signal change must occur every 60 electrical degrees, however, the relative signal phasing ...

Page 21

MC33033, NCV33033 Figure 42. Four Phase, Four Step, Full Wave Controller http://onsemi.com 21 ...

Page 22

S A Sensor Inputs 60°/120° Select Pin Open Code Top Drive Outputs Bottom Drive Outputs C B Conducting Power Switch Transistors + A ...

Page 23

MC33033, NCV33033 Figure 44. Four Phase, Four Step, Half Wave Motor Controller http://onsemi.com 23 ...

Page 24

Brush Motor Control Though the MC33033 was designed to control brushless dc motors, it may also be used to control dc brush−type motors. Figure 45 shows an application of the MC33033 driving a H−bridge affording minimal parts count to operate ...

Page 25

Device Operating Temperature Range MC33033DW MC33033DWG MC33033DWR2 T MC33033DWR2G MC33033P MC33033PG NCV33033DWR2* T NCV33033DWR2G* A †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specification Brochure, BRD8011/D. *NCV33033: ...

Page 26

SEATING PLANE 0.25 (0.010) MC33033, NCV33033 PACKAGE DIMENSIONS PDIP−20 P SUFFIX CASE 738−03 ISSUE 0.25 (0.010 ...

Page 27

20X 0. 18X ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes ...

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