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  ON Semiconductor Electronic Components Datasheet  

MC33033 Datasheet

Brushless DC Motor Controller

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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 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.
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.
Features
www.DataSheet4U.com
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
NCV Prefix for Automotive and Other Applications Requiring Site
and Control Changes
Pb−Free Packages are Available
http://onsemi.com
PDIP−20
P SUFFIX
CASE 738
SO−20L
DW SUFFIX
CASE 751D
20
1
20
1
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
Error Amp
Inverting Input
9
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)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 25 of this data sheet.
DEVICE MARKING INFORMATION
See general marking information in the device marking
section on page 25 of this data sheet.
© Semiconductor Components Industries, LLC, 2007
January, 2007 − Rev. 9
1
Publication Order Number:
MC33033/D


  ON Semiconductor Electronic Components Datasheet  

MC33033 Datasheet

Brushless DC Motor Controller

No Preview Available !

MC33033, NCV33033
VM
FWR/REV
60°/120°
Enable
VCC
Speed
Set
Faster
RT
CT
Rotor
Position
Decoder
Reference
Regulator
Undervoltage
Lockout
Error Amp
PWM
Oscillator
Thermal
Shutdown
R
Q
S
S
Q
R
Output
Buffers
Current Sense
This device contains 266 active transistors.
Figure 1. Representative Schematic Diagram
N
SS
N
Motor
http://onsemi.com
2


Part Number MC33033
Description Brushless DC Motor Controller
Maker ON Semiconductor
PDF Download

MC33033 Datasheet PDF






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