Motor Drivers

Microchip
Microchip offers a broad range of standalone motor controllers/drivers and MCU companion ICs for BLDC (brushless DC), PMS (Permanent Magnetic Synchronous Motor), brush DC, and stepper motors.

The family of three-phase brushless sensorless sinusoidal motor drivers can be interfaced with any microcontrollers by using a simple PWM, or can also be used standalone in the application. Microchip’s feature-rich companion ICs and wide selections of PIC® MCUs and dsPIC® DSCs are well suited for a complete solution in consumer, industrial and automotive motor control applications.

With the right features, firmware library, technical support, and system expertise, Microchip’s motor driver products are ideal for designs for simple to high performance motor systems.


 

3-Phase BLDC Motor Drivers

 

3phase

Microchip offers a family of three-phase brushless motor drivers and gate drivers. The family of three-phase brushless sensorless sinusoidal motor drivers can be interfaced with any microcontrollers by using a simple PWM, or can also be used stand alone by the application.

The family of three-phase brushless gate drivers are ideal to be designed with microcontrollers or digital signal controllers.

Main features of motor driver family:

  • Sensorless three-phase brushless motor drivers (no hall-effect sensor required)
  • 180° sinusoidal drive, for high efficiency and low acoustic noise
  • Speed control through power supply modulation (PSM) and/or pulse-width modulation (PWM)
  • Direction control pin (MTD6502B and MTD6505)
  • Resistor programmable BEMF coefficient (MTD6505)
  • Motor speed output (FG)
  • Lockup protection and automatic recovery
  • Over-current Limit, short circuit and over-temperature protection

Main features of motor gate driver family:

  • Three half-bridge drivers configured to drive external NMOS MOSFETs
  • Shoot-through protection
  • Overcurrent and short circuit protection
  • Adjustable output buck regulator
  • Operational amplifiers for motor phase current monitoring and position detection
  • Overcurrent Comparator
  • Level Translators
  • UVLO; OVLO; thermal warning and shutdown
  • Load dump protection
  • Extended Temperature Range: -40 to +150°C


 

 Dual Gull Bridge Motor Drivers

 

dualfullbridge

Microchip offers dual full-bridge motor drivers to drive bipolar stepper motors, or bidirectional control of two DC motors. The wide operating voltage range and easy to design with microcontrollers (MCU) allows customer to quickly adopt them into applications, such as security camera, ticketing system, home appliances, etc.

Features

  • Load voltage supply range: 10V to 40V
  • Output current up to 750 mA (each bridge)
  • Internal fixed Toff time PWM current control
  • Built-in protection diodes
  • Internal thermal shutdown
  • Under-voltage lockout
  • LS-TTL compatible logic inputs with pull-up resistors
  • Low RON output resistance
  • Low quiescent current


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