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Product Detailed Parameters
- Description：IC MOTOR DRIVER 4.5V-5.5V 24SOIC
- Series：-
- Mfr：Allegro MicroSystems
- Package：Tape & Reel (TR)
- Motor Type - Stepper：-
- Motor Type - AC, DC：Brushed DC
- Function：Driver - Fully Integrated, Control and Power Stage
- Output Configuration：Half Bridge (2)
- Interface：Serial
- Technology：DMOS
- Step Resolution：-
- Applications：General Purpose
- Current - Output：1.5A
- Voltage - Supply：4.5V ~ 5.5V
- Voltage - Load：20V ~ 50V
- Operating Temperature：-20°C ~ 150°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：24-SOIC (0.295", 7.50mm Width)
- Supplier Device Package：24-SOIC
- Grade：-
- Qualification：-
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Overview
The A3948SLBTR is a fully integrated brushed DC motor driver manufactured by Allegro MicroSystems. It features two half-bridge outputs capable of delivering 1.5 A continuous current. The device operates within a supply voltage range of 4.5 V to 5.5 V and supports load voltages from 20 V to 50 V. It utilizes DMOS technology and interfaces via a serial protocol. The component is housed in a 24-SOIC package with an operating temperature range of -20°C to 150°C (TJ).
Feature Summary
- Fully integrated design combining control logic and power stages for brushed DC motors.
- Serial interface simplifies connection to microcontrollers or digital systems.
- Built-in protection mechanisms include thermal shutdown and overcurrent limiting.
Applications
- General purpose motor control applications
- Automotive systems requiring robust motor drivers
- Industrial automation equipment
Procurement Notes
Verify the specific ordering suffix and packaging configuration required for your assembly process. Confirm RoHS compliance status as indicated in official documentation, noting that some variants may not meet current environmental standards. Check for active production status or obsolescence notices before finalizing procurement plans to ensure long-term availability.
Selection Notes
Select this component when a serial interface is preferred over parallel control to reduce pin count. Ensure the system supply voltage remains within the 4.5 V to 5.5 V range. Verify that the 1.5 A output current meets the motor requirements and that the 24-SOIC package fits the PCB layout constraints.
Part Context
This part belongs to the A3948 series of motor drivers from Allegro MicroSystems. It is designed for applications requiring reliable brushed DC motor control with minimal external components. The series emphasizes integration and ease of use through its serial communication capability.
Replacement Considerations
No direct public substitute part numbers are confirmed for this specific model in the provided data. Consult manufacturer resources for potential legacy replacements if this component is obsolete.
FAQ
What type of motor interface does the A3948SLBTR use?
It uses a serial interface for control signals.
Is the A3948SLBTR suitable for bipolar stepper motors?
No, it is specified for brushed DC motors.
