The A4942 simplifies fan motor control with its sensorless design, integrated closed-loop speed control, and adjustable current limiting for quiet and efficient operation.
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Download Datasheet
Manufacturer: Allegro MicroSystems, LLC
Win Source Part Number: 138680-A4942GESTR-T
Packaging: Reel - TR
Applications: Fan Motor Driver
Mounting: SMD (SMT)
Technology: Power MOSFET
Motor Type - AC, DC: Brushless DC (BLDC)
Categories: Integrated Circuits
Status: Active
Temperature Range - Operating: -40°C to 105°C (TA)
Case / Package: 20-QFN (4x4)
Purpose: Driver - Fully Integrated, Control and Power Stage
Popularity: Medium
Fake Threat In the Open Market: 55 pct.
Supply and Demand Status: Limited
Brushless DC Motor Controller, 4 X 4 MM, ROHS COMPLIANT, QFN-20 Product overview: A4942GESTR-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 QFN. Search-friendly keywords include motor driver IC, H-bridge, stepper motor, PWM control, motion control, QFN, Motor Drivers, Controllers. This listing supports clearer product discovery for industrial, commercial, repair, automation, power, sensing, and embedded system projects. Product number 744-A4942GESTR-T can be used for catalog matching and distributor lookup.
Motor Driver Power MOSFET PWM 20-QFN-EP (4x4)
Motor Driver Power MOSFET PWM 20-QFN-EP (4x4)
Motor Driver Power MOSFET PWM 20-QFN-EP (4x4)
Motor Driver Power MOSFET PWM 20-QFN-EP (4x4)
IC MOTOR DRIVER 20QFN
IC MOTOR DRIVER 20QFN
| Allegro MicroSystems Inc. | Win Source Electronics | ERSAELECTRONICS PTE. LTD. | DigiKey | Quarktwin Technology Ltd. | Lingto Electronic Limited | Shenzhen Shengyu Electronics Technology Limited | |
|---|---|---|---|---|---|---|---|
| Product Category | DC Motor Drives | Motion Controllers | DC Motor Drives | DC Motor Drives | Motor Controllers | Motor Controllers | Motor Controllers |
| Product Number | A4942GESTR-T | 138680-A4942GESTR-T | 744-A4942GESTR-T | 620-1471-2-ND | A4942GESTR-T | A4942GESTR-T | A4942GESTR-T |
| Product Name | Three Phase Sensorless Fan Driver | PMIC - PMIC - Motor Drivers, Controllers - A4942GESTR-T | QFN Motor Driver IC | Motor Drivers, Controllers | Motor Drivers, Controllers | PMIC - Motor Drivers, Controllers | Integrated Circuits (ICs) - Power Management (PMIC) - Motor Drivers, Controllers |
| Motor / System | DC Brushless | DC Brushless | DC Brushless; Brushless DC (BLDC) |
