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Product Detailed Parameters
- Description：IC MTR DRIVER 4.75V-5.25V 44PLCC
- Series：-
- Mfr：Allegro MicroSystems
- Package：Tube
- Motor Type - Stepper：-
- Motor Type - AC, DC：-
- Function：Controller - Commutation, Direction Management
- Output Configuration：Pre-Driver - Half Bridge (3)
- Interface：Parallel
- Technology：Power MOSFET
- Step Resolution：-
- Applications：-
- Current - Output：-
- Voltage - Supply：4.75V ~ 5.25V
- Voltage - Load：7V ~ 40V
- Operating Temperature：-40°C ~ 135°C (TA)
- Mounting Type：Surface Mount
- Package / Case：44-LCC (J-Lead)
- Supplier Device Package：44-PLCC (16.59x16.59)
- Grade：Automotive
- Qualification：-
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Overview
The A3935KED-T is a three-phase brushless DC motor controller manufactured by Allegro MicroSystems. It operates within a supply voltage range of 4.75 V to 5.25 V and supports load voltages from 7 V to 40 V, with an output voltage capability of 14 V. The device delivers an output current of 40 mA while consuming a typical operating supply current of 7 mA. Designed for robust performance, it functions across an extended temperature range from -40°C to +150°C. The component is housed in a 44-PLCC (J-Lead) surface-mount package, facilitating integration into compact motor control applications requiring precise three-phase drive capabilities.
Feature Summary
- Integrated three-phase BLDC motor control architecture
- Wide load voltage tolerance up to 40 V
- Extended industrial temperature operation range
Applications
- Brushless DC motor drives
- Industrial motion control systems
- Automotive ignition controllers
Procurement Notes
Verify the specific suffix 'ED' against the datasheet to confirm the 44-PLCC package variant. Confirm RoHS compliance status as indicated in distributor records. Check lifecycle status, as some sources list related variants as Not Recommended for New Designs. Ensure the 4.75 V to 5.25 V supply requirement matches your system design before procurement.
Selection Notes
Select this part when a dedicated three-phase BLDC controller is required with a strict 5 V logic supply. The 40 mA output current suits low-power fan or pump applications. The 44-PLCC package offers a larger footprint than QSOP options, potentially easing thermal dissipation and assembly. Verify that the 7 V minimum load voltage aligns with your motor's back-EMF requirements.
Part Context
This component belongs to the A3935 series of motor drivers from Allegro MicroSystems. While other variants like the A3935KLQTR-T utilize a QSOP-36 package, the A3935KED-T specifically utilizes a 44-LCC J-Lead configuration. This series is designed for automotive and industrial environments, providing integrated protection features common to high-reliability motor control ICs.
Replacement Considerations
Public documentation suggests the A4933KJPTR-T as a suggested replacement device. Verify pinout compatibility and electrical specifications between the 44-PLCC A3935KED-T and the alternative package type before substitution.
