A3973SLB-T

Step Resolution:	1 ~ 1/64
Base Part Number:	A3973
Supplier Device Package:	24-SOIC
Package / Case:	24-SOIC (0.295", 7.50mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-20°C ~ 150°C (TJ)
Voltage - Load:	15 V ~ 35 V
Voltage - Supply:	4.5 V ~ 5.5 V
Current - Output:	1A
Applications:	General Purpose
Series:	--
Technology:	DMOS
Interface:	Serial
Output Configuration:	Half Bridge (4)
Function:	Driver - Fully Integrated, Control and Power Stage
Motor Type - AC, DC:	--
Motor Type - Stepper:	Bipolar
Part Status:	Obsolete
Packaging:	Tube

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A3973SLB-T is a high-voltage, low-current, two-phase bipolar stepper motor driver suitable for applications requiring micro-stepping and low-noise solutions. It has a wide range of operating characteristics that allows for precise and efficient operation of DC motor loads in order to achieve accurate position and speed control. It can deliver up to 1.5A of motor current and can support up to 36V of motor operating voltage. It is widely used in many service fields, including medical equipment and motor control applications such as robotics, servo systems, linear actuators, HVAC motors and pumps.The A3973SLB-T integrates a full set of motor control functions including over-current protection, over-temperature protection, five-pin voltage sensing, and adjustable step-and-direction control inputs which makes it an ideal solution for closed-loop motor control applications. The A3973SLB-T also features an internal Hall-Effect interface that allows for seamless integration with a wide range of sensors and motors.In terms of working principle, A3973SLB-T works by converting the input or control voltage into a set of discrete steps that are used to switch a set of motor windings on and off in order to generate a measurable current in the coil. This current is used to move the motor. The control voltage directs the step sequence and magnitude of the output current, which can be adjusted and set by the user.The A3973SLB-T also has an active current control mechanism. This internal circuitry allows for precise control of the motor current and reduces power dissipation. The motor current and power dissipation can be adjusted in steps as small as 1 mA or in ranges as high as 36V, allowing the user to optimize the motor performance according to the application.The design of the A3973SLB-T also makes it ideal for advanced motor control applications such as closed loop control and brushless DC motor control. The integrated Hall-effect interface allows for the precise and efficient control of motors, and the five-pin voltage sensing allows for accurate control of the motor\'s operating speed. The adjustable step-and-direction control inputs allow for precise positioning of the motor and speed control. These features make the A3973SLB-T an ideal choice for applications requiring precise and efficient control of motors in closed loop control and brushless DC motor control systems.In conclusion, the A3973SLB-T is a powerful and versatile integrated motor controller/ driver, providing the user with precise and efficient control of DC motor loads in a wide range of applications such as robotics, servo systems, linear actuators, HVAC motors, and pumps, among others. The wide range of operating characteristics, along with the integrated over-current and over-temperature protection, make it the ideal choice for motor control applications.

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