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Product Detailed Parameters
- Description：IC MOTOR DRVR 4.75V-5.25V 36QSOP
- Series：-
- Mfr：Allegro MicroSystems
- Package：Tape & Reel (TR)
- 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：36-BSOP (0.295", 7.50mm Width)
- Supplier Device Package：36-QSOP
- Grade：Automotive
- Qualification：-
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Overview
The A3935KLQTR-T is a three-phase brushless DC motor controller manufactured by Allegro MicroSystems. It operates with a supply voltage range of 4.75 V to 5.25 V and supports load voltages from 7 V to 40 V. The device features an output current capacity of 40 mA and a typical operating supply current of 7 mA. It is housed in a 36-pin QSOP surface-mount package and functions within a temperature range of -40°C to +150°C. This component integrates power MOSFET technology for efficient motor drive applications.
Feature Summary
- Integrates three half-bridge pre-drivers for complete three-phase BLDC control
- Includes built-in commutation logic and direction management capabilities
- Utilizes parallel interface architecture for straightforward digital control integration
Applications
- Brushless DC motor control systems
- Automotive motion control applications
- Industrial automation drives
Procurement Notes
Verify the obsolete status of this part number before procurement, as it is marked as Not Recommended for New Designs (NRND). Confirm that the suggested replacement, A4933KJPTR-T, meets all functional requirements for your specific application design. Ensure compatibility with existing PCB footprints and firmware if substituting components in established production lines.
Selection Notes
Select this component for designs requiring integrated three-phase BLDC control with low supply current consumption. The wide operating temperature range makes it suitable for harsh environments. Consider the 36-QSOP package constraints during layout planning. Verify that the 40 mA output current aligns with the gate drive requirements of the external power stage or internal MOSFETs used in the target motor system.
Part Context
This device belongs to the A3935 series of motor controllers from Allegro MicroSystems. It is designed for high-reliability applications in automotive and industrial sectors. The component represents a specialized solution for managing three-phase motors without requiring complex external logic circuits, simplifying the overall system design and reducing bill of materials complexity.
Replacement Considerations
The A4933KJPTR-T is identified as a suggested replacement device. Evaluate pinout compatibility and feature parity before substitution.
