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Product Detailed Parameters
- Description：IC MOTOR DRIVER BIPOLAR 24SOIC
- Series：-
- Mfr：Allegro MicroSystems
- Package：Tape & Reel (TR)
- Motor Type - Stepper：Bipolar
- Motor Type - AC, DC：Brushed DC
- Function：Driver - Fully Integrated, Control and Power Stage
- Output Configuration：Half Bridge (4)
- Interface：Parallel
- Technology：Bipolar
- Step Resolution：-
- Applications：General Purpose
- Current - Output：750mA
- Voltage - Supply：4.75V ~ 5.25V
- Voltage - Load：10V ~ 45V
- 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 UDN2916LBTR is a dual full-bridge PWM motor driver manufactured by Allegro MicroSystems. It features a 44-PLCC package with 44 pins and supports surface mount installation. The device operates on a supply voltage of 4.75V to 5.25V, handling load voltages from 10V to 45V. It delivers a continuous output current of 750mA per channel. The component functions as a bipolar stepper or brushed DC motor driver with four half-bridge outputs and parallel interface control. It operates within a junction temperature range of -20°C to 150°C.
Feature Summary
- Integrates internal pulse-width modulation (PWM) current control for precise regulation of output current without external sensing components.
- Includes built-in thermal shutdown circuitry to protect the device from overheating during operation.
- Features internal clamp diodes to manage inductive kickback from motor windings safely.
Applications
- Bipolar stepper motor control systems
- Brushed DC motor drive applications
- Miniature printer motor control circuits
Procurement Notes
Verify the specific suffix against official datasheets, as packaging variations exist between tape-and-reel and tube formats. Confirm RoHS compliance status, as different suffixes may indicate varying environmental certifications. Check manufacturer lifecycle notices for obsolescence warnings before finalizing procurement plans.
Selection Notes
Select this component when designing circuits requiring integrated PWM current chopping for bipolar motors. Ensure the application voltage remains within the specified 10V to 45V load range. Verify that the 44-pin PLCC footprint fits the PCB layout constraints. Consider the thermal performance requirements given the integrated protection features.
Part Context
This part belongs to the UDN2916 family of dual full-bridge drivers originally developed by Sanken Electric and later acquired by Allegro MicroSystems. The series is designed for low-cost, high-performance motor control in consumer electronics and industrial automation. The UDN2916LBTR specifically denotes the tape-and-reel packaging variant of the standard LB device.
Replacement Considerations
The A2916 is a pin-compatible alternative from Allegro MicroSystems offering similar functionality. Other potential substitutes include the L6219DS and UC3770, though interface and voltage specifications should be verified against the original design requirements.
