Allegro MicroSystems A4950ELJTR-T
| Parameters | |
|---|---|
| Series | - |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) Exposed Pad |
| Interface | Analog |
| Mfr | Allegro MicroSystems |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 150°C (TJ) |
| Technology | DMOS |
| Applications | General Purpose |
| Current - Output | 3.5A |
| Supplier Device Package | 8-SOIC-EP |
| Output Configuration | Half Bridge (2) |
| Function | Driver - Fully Integrated, Control and Power Stage |
| Voltage - Supply | 8V ~ 40V |
| Voltage - Load | 8V ~ 40V |
| Motor Type - Stepper | - |
| Motor Type - AC, DC | Brushed DC |
| Step Resolution | - |
| Package | Tape & Reel (TR) |
| Product Status | Active |
| Base Product Number | A4950 |
| REACH Status | REACH Unaffected |
| Standard Package | 3,000 |
| ECCN | EAR99 |
| HTSUS | 8542.39.0001 |
A4950ELJTR-T Motor Driver
The A4950ELJTR-T from Allegro MicroSystems is a high-performance full-bridge PWM motor driver designed for bidirectional DC motor control applications requiring robust power handling and precise current regulation. This monolithic integrated circuit features an advanced output stage capable of delivering up to 3.5 A continuous current with an operating voltage range from 8 V to 40 V, making it ideal for automotive systems, industrial automation, robotics, and precision motor control applications. Housed in a compact 8-pin SOIC package with an exposed thermal pad, the device incorporates a fixed off-time PWM current control circuit that regulates motor current based on an analog reference voltage, providing smooth and efficient motor operation across various speed ranges.
A4950ELJTR-T Applications
The A4950ELJTR-T is extensively used in automotive systems for throttle control, HVAC actuators, power seat adjustment, and mirror positioning where its high current capability and robust protection features ensure reliable operation. Industrial applications include CNC machine tool axis control, conveyor belt drives, and automated valve actuators leveraging the driver's precise current regulation and bidirectional control capabilities. Robotics systems utilize the device for joint actuation, wheel drive control, and gripper mechanisms benefiting from its smooth PWM operation and efficient power handling. The driver's compatibility with microcontroller interfaces makes it suitable for digitally controlled motion systems across various industries.
Alternative DC Motor Controller Recommendations
● DRV8873DQPR (Texas Instruments): A 4.5 V to 37 V, 6 A H-bridge motor driver with integrated current sensing and robust protection features for industrial applications.
● BD6222HFP-TR (ROHM Semiconductor): A 8 V to 42 V, 2 A H-bridge motor driver with low standby current and built-in error detection circuits.
● MC33887VW (NXP Semiconductors): A 5 V to 28 V, 5 A H-bridge motor driver featuring fault reporting and PWM frequency programmability for automotive systems.
● LV8761T-TLM-H (ON Semiconductor): A 4.5 V to 28 V, 3 A H-bridge driver with current control and integrated protection functions for automotive applications.
