A3981KLPTR-T

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

The A3981KLPTR-T is an integrated circuit motor driver. It is classified as PMIC - Motor Drivers, Controllers, and operates to both drive a single 2-phase bipolar stepper motor or a single 4-phase unipolar stepper motor. It is commonly used in printers, scanners, hard disk drivers, and other robotic or automotive applications.

The driver is comprised of an adjustable chopping current control, load-dump protection, thermal shutdown protection, a regulated power supply, and an output stage. The adjustable chopping current control provides a constant current to the motor, which results in a smooth, quiet, and consistent movement of the stepper motor. The load-dump protection circuitry provides protection from over-voltage which can occur from inductive loads. Additionally, the thermal shutdown protection circuitry prevents the motor from over-heating, which can cause motor failure.

The output stage consists of two full-bridge drivers and one output enable input, which can be used for braking and/or direction control. The output stage also contains four low-output-drive transistors that can be used for micro-stepping, allowing for smooth and precise movements in the stepper motor.

This IC functions by first supplying power to the IC and then an enable signal is received to turn on the output stage. This will allow the motor and output stage to be connected. Once the enable signal is received, the stepper motor will start to move and the load-dump protection and thermal shutdown protection circuitry will ensure that neither the motor nor the IC become damaged due to high currents or excessive heat.

Overall, the A3981KLPTR-T motor driver is quite versatile and is useful for a wide variety of applications. It can be used to drive both unipolar and bipolar stepper motors, allowing for precise control and smooth movements. Additionally, it also provides safety features that protect both the motor and the IC, preventing them from being damaged by excessive current or heat.

The specific data is subject to PDF, and the above content is for reference