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MC33035

Motorola
Part Number MC33035
Manufacturer Motorola
Description BRUSHLESS DC MOTOR CONTROLLER
Published Sep 20, 2005
Detailed Description Order this document by MC33035/D MC33035 Brushless DC Motor Controller The MC33035 is a high performance second generat...
Datasheet PDF File MC33035 PDF File

MC33035
MC33035

Overview
Order this document by MC33035/D MC33035 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.
BRUSHLESS DC MOTOR CONTROLLER SEMICONDUCTOR TECHNICAL DATA P SUFFIX PLASTIC PACKAGE CASE 724 24 1 • • • • • • • • • • 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 DW SUFFIX PLASTIC PACKAGE CASE 751E (SO–24L) 24 1 PIN CONNECTIONS Top Drive Output BT 1 AT 2 24 CT 23 Brake 22 60°/120° Select 21 AB 20 BB 19 CB 18 VC 17 VCC 16 Gnd 15 Current Sense Inverting Input Bottom Drive Outputs Fwd/Rev SA Sensor Inputs SB SC Output Enable 3 4 5 6 7 8 ...


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