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MC33035DW Datasheet(PDF) 1 Page - ON Semiconductor |
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MC33035DW Datasheet(HTML) 1 Page - ON Semiconductor |
1 / 28 page © Semiconductor Components Industries, LLC, 2006 April, 2006 − Rev. 8 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 Site and Control Changes • Pb−Free Packages are Available http://onsemi.com AT BT 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 SC SB SA 60 °/120° Select Fwd/Rev Current Sense Inverting Input Gnd VCC CT 22 23 BB CB 3 24 Brake 2 AB 1 VC PIN CONNECTIONS 24 1 24 1 P SUFFIX PLASTIC PACKAGE CASE 724 DW SUFFIX PLASTIC PACKAGE CASE 751E (SO−24L) 14 13 12 11 Error Amp Inverting Input Error Amp Noninverting Input Error Amp Out/ PWM Input Fault Output See detailed ordering and shipping information in the package dimensions section on page 27 of this data sheet. ORDERING INFORMATION See general marking information in the device marking section on page 27 of this data sheet. DEVICE MARKING INFORMATION |
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