A4930GETTR-T

Technology:	NMOS
Supplier Device Package:	28-QFN (5x5)
Package / Case:	28-VFQFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 105°C (TA)
Voltage - Load:	--
Voltage - Supply:	8 V ~ 36 V
Current - Output:	--
Applications:	Automotive
Step Resolution:	--
Series:	Automotive, AEC-Q100
Interface:	PWM
Output Configuration:	Pre-Driver - Half Bridge (2)
Function:	Controller - Commutation, Direction Management
Motor Type - AC, DC:	Brushless DC (BLDC)
Motor Type - Stepper:	--
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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A4930GETTR-T Application Field and Working Principle

Introduction

A4930GETTR-T is a high performance, intelligent digital power supply integrated circuit designed to drive a three phase brushless DC (BLDC) motor. It supports closed loop current and velocity control on 3-phase motors and reduces system development time and cost. This product is applicable to small and medium motor applications such as home appliance pumps and fans, industrial blowers, pumps and fans, robots and 3D printers.

Application Field

A4930GETTR-T is suitable for various micro motor applications, including home appliance motors and small industrial motors, or other minor motor applications. For instance, it can be used for different home appliance motors, such as fans, pumps, and small robots. The ultra-compact package, light weight and perfect over-current protection makes this device perfect for these home appliance applications.Besides, the A4930GETTR-T may also be used in various industrial motor applications, such as blowers, fans, pumps, robotics, and 3D printing. Its fantastic performance is capable of providing stable and high-precision current and velocity control, making it perfect for these industrial control applications. Furthermore, with the flexible pulse-width modulation (PWM) and brake logic, A4930GETTR-T supports a wide range of low-voltage and low-current, providing a perfect solution for low power and small motor applications.

Working Principle

A4930GETTR-T motor driver adopts a closed loop control method to achieve current and velocity control. By measuring the motor current feedback signals, it can accurately control the actual motor current and drive the motor stably, which provides high accuracy control. Moreover, this method enables rapid switching control between acceleration, deceleration and constant speed.The A4930GETTR-T is also integrated with a PORT and LIN bus for self-test and current monitoring. Plus, the system can use either a Current Sensing (CSEN) technique, which utilizes a fixed resistor connected in series to the output, or a Sine Wave Amplitude Measurement (SWAM) technique, which calculates the back-EMF from the motor. These techniques provide current monitoring indeed, making the A4930GETTR-T a perfect and reliable advanced motor driving solution to achieve current and velocity control.

Conclusion

In conclusion, with its excellent advantages and performance, A4930GETTR-T supports superb current and velocity control on small and medium motor applications, such as home appliances and industrial robots. In addition, it is able to achieve precise current monitoring and precise speed control, making it an ideal PMIC solution.

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