TECHNICAL DATA
B
RUSHLESS
DC M
OTOR
C
ONTROLLER
The
KK33035
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擄/300擄 or 120擄/240擄, and can also efficiently
control brush DC motors
KK33035
F
EATURES
鈥?/div>
10 to 30 V Operation
鈥?Undervoltage Lockout
鈥?6.25V Reference Capable of Supplying Sensor Power
鈥?Fully Accessible Error Amplifier for Closed Loop Servo Applications
鈥?High Current Drivers Can Control External 3-Phase MOSFET Bridge
鈥?Cycle-By-Cycle Current Limiting
鈥?Pinned-Out Current Sense Reference
鈥?Internal Thermal Shutdown
鈥?Selectable 60擄/300擄 or 120擄/240擄 Sensor Phasings
鈥?Can Efficiently Control Brush DC Motors with External MOSFET H-Bridge
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