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Product Detailed Parameters
- Description：IC MOTOR DRIVER 8V-36V 16TSSOP
- Series：-
- Mfr：Allegro MicroSystems
- Package：Tape & Reel (TR),Cut Tape (CT)
- Motor Type - Stepper：-
- Motor Type - AC, DC：Brushed DC
- Function：Driver - Fully Integrated, Control and Power Stage
- Output Configuration：Half Bridge (2)
- Interface：Parallel
- Technology：DMOS
- Step Resolution：-
- Applications：General Purpose
- Current - Output：2.8A
- Voltage - Supply：8V ~ 36V
- Voltage - Load：8V ~ 36V
- Operating Temperature：-20°C ~ 150°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：16-TSSOP (0.173", 4.40mm Width) Exposed Pad
- Supplier Device Package：16-eTSSOP-EP
- Grade：-
- Qualification：-
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Overview
The A3949SLPTR-T is a fully integrated brushed DC motor driver manufactured by Allegro MicroSystems. It utilizes DMOS technology to provide both control logic and power output stages in a single package. The device supports a supply voltage range of 8V to 36V and delivers an output current of 2.8A. It features a 16-pin eTSSOP package with an exposed pad for thermal management. The operational junction temperature range extends from -20°C to 150°C, ensuring reliability in demanding environments.
Feature Summary
- Fully integrated design combining control logic and DMOS power stages
- Supports parallel interface for simplified system integration
- Includes built-in protection mechanisms against overcurrent and thermal overload
Applications
- Brushed DC motor control in industrial automation equipment
- Motor drive circuits in office automation devices such as printers
- General-purpose motor control applications requiring compact solutions
Procurement Notes
Verify the specific suffix 'TPTR' indicates tape and reel packaging configuration. Confirm RoHS compliance status as historical data suggests potential non-compliance for earlier revisions. Ensure the 16-eTSSOP-EP package dimensions match the target PCB footprint. Validate that the 2.8A continuous current rating aligns with the thermal design of the final assembly.
Selection Notes
Select this component when a compact, fully integrated solution for brushed DC motors is required. It is suitable for applications operating within the 8V to 36V supply range. Consider the exposed pad requirement for adequate heat dissipation at higher currents. Verify compatibility with parallel interface control signals compared to PWM-only alternatives.
Part Context
This part belongs to the A3949 series of motor drivers from Allegro MicroSystems. It serves as a direct replacement for the discontinued A3949SLP variant. The device is designed for general-purpose motor control tasks where space constraints and integration level are critical factors. It represents a mature technology platform for brushed DC motor applications.
Replacement Considerations
The A3950SLPTR-T is documented as a parameter-equivalent substitute for the A3949SLPTR-T. Both parts share similar electrical characteristics and pin configurations. Verify functional equivalence through official datasheets before implementation.
