The A3901 efficiently drives two DC motors or a single stepper motor with its dual full-bridge design. Optimized for low voltage drop and power consumption, it supports currents up to ±800mA (paralleled outputs) and offers flexible control modes (forward, reverse, brake).
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Download Datasheet
Manufacturer: Allegro MicroSystems, LLC
Win Source Part Number: 007675-A3901SEJTR-T
Packaging: Reel - TR
Applications: General Purpose
Mounting: SMD (SMT)
Technology: Power MOSFET
Output Current: 400mA
Voltage - Load: 2.5 V to 5.5 V
Motor Type - Stepper: Bipolar
Motor Type - AC, DC: Brushed DC
Step Resolution: 1, 1/2
Family Name: A3901
Categories: Integrated Circuits
Status: Active
Temperature Range - Operating: -20°C to 150°C (TJ)
Case / Package: 10-DFN (3x3)
Purpose: Driver - Fully Integrated, Control and Power Stage
Supply Voltage - Operating: 2.5 V to 5.5 V
Alternative Parts (Cross-Reference): TB6552FNG(O,8,EL); TB6552FTG(O,8,EL); TB6552FTG;
Introduction Date: January 22, 2009
ECCN: EAR99
Country of Origin: Taiwan
Estimated EOL Date: 2022
Halogen Free: Compliant
Is this a common-used part?: Yes
Popularity: High
Fake Threat In the Open Market: 44 pct.
Supply and Demand Status: Balance
Application Field: Used in Motor Drive & Control, Industrial
Stepper Motor Controller, 0.4A, BIPolar, 3 X 3 MM, 0.75 MM HEIGHT, LEAD FREE, MO-229WEED, DFN-10 Product overview: A3901SEJTR-T from Allegro MicroSystems is a Motor Driver IC for embedded motor control, robotics, automation equipment, haptic feedback, pumps, fans, and industrial motion systems. It is useful for engineers and buyers comparing datasheets, replacement parts, BOM lines, package options, lifecycle status, and procurement availability. Key searchable attributes include Stepper, 0.4A, DFN. Search-friendly keywords include motor driver IC, H-bridge, stepper motor, PWM control, motion control, Stepper, 0.4A, DFN, Motor Drivers, Controllers. This listing supports clearer product discovery for industrial, commercial, repair, automation, power, sensing, and embedded system projects. Product number 744-A3901SEJTR-T can be used for catalog matching and distributor lookup.
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MOTOR DRIV FULL BRIDGE, 400MA, DFN-10; Motor Type:Full Bridge; No. of Outputs:4Outputs; Output Current:400mA; Output Voltage:5.5V; Driver Case Style:DFN; No. of Pins:10Pins; Supply Voltage Min:2.5V; Supply Voltage Max:5.5V; OperatingRoHS Compliant: Yes
| Allegro MicroSystems Inc. | Win Source Electronics | ERSAELECTRONICS PTE. LTD. | DigiKey | Shenzhen Shengyu Electronics Technology Limited | Lingto Electronic Limited | Quarktwin Technology Ltd. | Newark, An Avnet Company | |
|---|---|---|---|---|---|---|---|---|
| Product Category | Stepper Motor Drives | Motion Controllers | DC Motor Drives | DC Motor Drives | Motor Controllers | Motor Controllers | Motor Controllers | Motor Controllers |
| Product Number | A3901SEJTR-T | 007675-A3901SEJTR-T | 744-A3901SEJTR-T | 620-1159-1-ND | A3901SEJTR-T | A3901SEJTR-T | A3901SEJTR-T | 87R0039 |
| Product Name | Dual Full Bridge Low Voltage Motor Driver | PMIC - PMIC - Motor Drivers, Controllers - A3901SEJTR-T | Stepper 0.4A DFN Motor Driver IC | Motor Drivers, Controllers | Integrated Circuits (ICs) - Power Management (PMIC) - Motor Drivers, Controllers | PMIC - Motor Drivers, Controllers | Motor Drivers, Controllers | Motor Driv Full Bridge, 400Ma, Dfn-10; Motor Type Allegro Microsystems |
| Configuration | PCB Mount | PCB Mount; 10-WFDFN Exposed Pad | ||||||
| Operating Temperature | -20 to 150 C (-4 to 302 F) | -20 C (-4 F) | -20 to 150 C (-4 to 302 F) | -20 to 150 C (-4 to 302 F) | ||||
| AC Input | 2 to 6 volts | 2 to 6 volts | 2 to 6 volts | |||||
| DC Input | 2 to 6 volts | 6 volts | 2 to 6 volts | 2 to 6 volts | ||||
| Continuous Current | 0.4000 amps | 0.4000 amps | 0.4000 amps |
