© Semiconductor Components Industries, LLC, 2014
May, 2014 − Rev. 9
1 Publication Order Number:
MC33035/D
MC33035, NCV33035
Brushless DC
Motor Controller
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.
Features
• 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
• NCV Prefix for Automotive and Other Applications Requiring
Unique Site and Control Change Requirements; AEC−Q100
Qualified and PPAP Capable
• Pb−Free Packages are Available
http://onsemi.com
A
T
B
T
Top Drive
Output
16
Bottom
Drive
Outputs
15
(Top View)
17
18
19
20
21
10
9
8
7
6
5
Sensor
Inputs
4
Oscillator
Current Sense
Noninverting Input
Reference Output
Output Enable
S
C
S
B
S
A
60°/120° SelectFwd/Rev
Current Sense
Inverting Input
Gnd
V
CC
C
T
22
23
B
B
C
B
3
24
Brake
2
A
B
1
V
C
PIN CONNECTIONS
24
1
24
1
PDIP−24
P SUFFIX
CASE 724
SOIC−24 WB
DW SUFFIX
CASE 751E
14
1312
11
Error Amp
Inverting Input
Error Amp
Noninverting Input
Error Amp Out/
PWM Input
Fault
Output
See detailed ordering and shipping information in the packag
dimensions section on page 28 of this data sheet.
ORDERING INFORMATION
See general marking information in the device marking
section on page 28 of this data sheet.
DEVICE MARKING INFORMATION
