A3988SEVTR-1-T

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Introduction

A3988SEVTR-1-T is a two-channel high-efficiency stepper motor driver, suitable for driving two-phase hybrid stepping motors in applications requiring high torque and low noise operation. It is part of the PMIC - Motor Drivers, Controllers family and provides various features for optimal system performance.

Application field

A3988SEVTR-1-T is an ideal solution for applications that require high precision position control, such as printers, scanners, plotters and textile machines. In addition, this driver is ideal for applications that need to be controlled remotely. It is particularly suitable for applications that require low-noise operation and high-thermal performance.

Working principle

A3988SEVTR-1-T includes two independent H-bridge outputs, which are connected to the two phases of a two-phase hybrid stepping motor. The motor driver integrates active low on/off and sleep inputs. The driver also includes a reference voltage input, an efficient constant-current chopping technique, and two independent current-sense inputs. The current-sense inputs are used to detect and limit the current flowing through the corresponding phase coil of the motor.

When the reference voltage is connected, the power stage will provide constant-current output and can be controlled by the on/off and sleep signals. The internal chopping technique helps reduce waste of power resources. The driver also includes over current protection, under voltage lockout with fast scaling and over temperature reducing current.

Conclusion

A3988SEVTR-1-T is a two-channel high-efficiency stepper motor driver from PMIC - Motor Drivers, Controllers family. It is a great solution for applications requiring high precision position control, low-noise operation and efficient constant-current chopping technique. In addition, it provides various features for optimal system performance such as on/off, sleep and over current protection.

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