FSP33035 Datasheet, PDF (1/28 Pages) FOSLINK SEMICONDUCTOR CO.,LTD – BRUSHLESS DC MOTOR CONTROLLER

BRUSHLESS DC MOTOR CONTROLLER
„ FEATURES
z 10V to 30 V Operation
z Undervoltage Lockout
z 6.25V Reference Capable of Supplying Sensor
Power
z Fully Accessible Error Amplifier for Closed Loop
Servo Applications
z High Current Drivers Can Control External
3–Phase MOSFET Bridge
z Cycle–By–Cycle Current Limiting
z Pinned–Out Current Sense Reference
z Internal Thermal Shutdown
z Selectable 60°/300° or 120°/240° Sensor
Phasings
z Can Efficiently Control Brush DC Motors with
External MOSFET H–Bridge
z Top driver output current not more than 50mA
z Bottom driver output current not more than 100mA
z SOP24L and PDIP24L Packages
FSP33035
„ GENERAL DESCRIPTION
The FSP33035 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 FSP33035 is designed to
operate with electrical sensor phasings of 60°/300° or
120°/240°, and can also efficiently control brush DC
motors.
„ PIN CONFIGURATION
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2007-3-16