A4935KJPTR-T

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A4935KJPTR-T is a microcontroller-based motor driver from Texas Instruments. It is part of the Power Management Integrated Circuit (PMIC) family of products which includes motor controllers, drivers, DC/DC converters, and voltage regulators. This device is used for non-isolated, high-current motor control applications that require high flexibility and high efficiency. The A4935KJPTR-T offers several features that provide enhanced performance and improve system reliability. This article will discuss the application field and working principle of the device.

Application Field of A4935KJPTR-T

The A4935KJPTR-T is ideally suited for applications that require high-efficiency motor control systems with high torque, accurate position control and flexible configuration. It is widely used in general-purpose motor control applications such as stepper motor control, servo motor control and precision motor control. The device is also used in drive and motor control applications such as dc motor control and motors used in servo motor applications, instrumentation, and other motor control solutions.

Working Principle of A4935KJPTR-T

The A4935KJPTR-T is a complete motor driver solution for non-isolated high-current applications. It provides high-torque control and precise position control. The device utilizes an integrated switch mode power conversion (SMPC) architecture employing fixed frequency PWM and Phase-Shifted Full-Bridge (PSFB) pulse width modulation (PWM). It also incorporates some protection features, such as overvoltage protection and overtemperature protection. The device can provide up to 1.5 A peak/1.2 A continuous output current.

The controller can operate with a wide range of supply voltages, from 9V to 48V, making it ideal for various applications including those with varying voltage. It also features an independent current-mode control loop which maintains accuracy, improves the overall performance, and provides a wide range of current control. The device supports 2-, 4-, 6-, and 8-step commutation to generate the necessary current waveform for motor control. It also incorporates 5-level fixed voltage scaling, which allows the user to adjust the motor current while maintaining high efficiency.

The A4935KJPTR-T can be used in either low-level or high-level control applications depending on the application needs. It includes an optimized hardware-based PROFIenergy power management module which optimizes the power consumption of the system by cutting off the power when not needed. The device also includes a watchdog timer with a programmable period that can be used to take corrective action in the event of a failure.

Conclusion

The A4935KJPTR-T from Texas Instruments is an advanced motor driver for non-isolated, high-current motor control applications that require high flexibility and high efficiency. It uses a SMPC architecture with a PWM and PSFB technique and supports 2-, 4-, 6-, and 8-step commutation. It offers an independent current-mode control loop, adjustable motor current, and overvoltage and overtemperature protection. It also features PROFIenergy power management and a programmable watchdog timer. This device is ideal for various general-purpose motor control applications and drive/motor control applications.

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