AMT49413GEVATR

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Power Management, Integrated Circuits (PMICs) are integrated circuits that provide power management in digital and analog systems. Among them, Motor Drivers, Controllers, are specialized ICs that provide power and control signals to motors of various kinds. AMT49413GEVATR is a typical example of such ICs, and it is manufactured by American Microsemiconductor Inc.

Application Field

AMT49413GEVATR is designed with the mission of controlling and driving a permanent magnet (PM) brushless DC (BLDC) motor with Hall-effect sensors. Its operating voltage range between 3.5V and 12V, making it suitable for an extensive range of automotive, industrial, and consumer applications, such as cameras, gaming consoles, home appliances, drones and electric vehicles.

It has comprehensive protection features, such as overcurrent protection, over-temperature protection, and short-circuit protection to provide a safe operating environment for PM-BLDC motor drive applications. It also includes sophisticated diagnostic functions for monitoring and protection, such as under-voltage lockout, Hall level detect, PWM signal loss detect, and supply voltage detect.

Working Principle

At the center of the working principle of AMT49413GEVATR is that it senses the position of the rotor of the permanent magnet brushing DC (PMBLDC) motor via Hall-effect sensors, controls the PWM signals to adjust the speed and torque of the motor accordingly. The power stage can supply up to 6A peak current, giving larger starting torque to the motor and supports up to 100% duty cycle.

Moreover, the integrated Active DC offset cancellation eliminates the need for external DC offset cancellation circuits and significantly reduces gains in stability and system cost. And the NCO PWM output frequency is adjustable from 10KHz to 64KHz, which enables the motor speed range from low speed to high speed.

In a nutshell, AMT49413GEVATR is a highly-specialized PMIC for motor controllers, and its excellent features make it an ideal choice for a wide array of applications ranging from automotive to consumer electronics.

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