Analog: Motor Driver

Microchip has more than 20 years' experience with driver ICs for automotive motors. We supply products at a high-volume for a variety of common body electronic applications, including mirror control and flap control in HVACs. They all share the same protection features – short-circuit protection, temperature warning and switch off, low voltage protection, and open load detection – all of which are a must for automotive electronics.

Features and Benefits

The Microchip driver family includes a wide variety of integrated half bridge output stages, enabling designers to easily tailor solutions to their needs.

Our driver portfolio includes ICs for small DC motors controlled directly from the output stages. At the heart of the Microchip, the portfolio is motor driver system basis chips, with integrated gate drivers or pre-drivers to control separate NMOSFETs. These drivers can be used to control almost any size of NMOSFETs, for use in a broad range of applications.

With few external components, the Microchip driver ICs with LIN communication and the Microchip microcontrollers combine to create cost-efficient motor driver modules, complete with LIN functionality for harsh automotive conditions.

The Microchip motor driver family targets applications with stepper motors, brushed and brushless DC motors for standard temperature applications, as well as demanding high-temperature "under-the-hood" applications.

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Stepper and Brushed DC Motor Drivers

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) allow customer to quickly adopt them into applications, such as security camera, ticketing system, home appliances, etc.

Microchip also offers full-bridge motor gate drivers to drive brushed DC motors in automotive body and powertrain applications.

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3-Phase Motor Drivers

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 is ideal to be designed with microcontrollers or digital signal controllers.

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Multi-channel Half-Bridge Drivers

Microchip multi-channel half bridge drivers support brushed DC motors in automotive and industrial applications. They are designed to support three to six independent driver stages and currents up to 1A each half bridge output. The control and diagnosis interface is a 16-Bit SPI.
The devices are designed in BCD-on-SOI architecture, combining high-voltage capability with the benefits of rugged SOI technology: high-temperature resistance, excellent radiation hardness, very low leakage currents, low parasitic and latch-up immunity.

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3-Phase Brushless Motor Drivers

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 witMicrochip 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 is ideal to be designed with microcontrollers or digital signal controllers.

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Full-Bridge Drivers

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.