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Product Detailed Parameters
- Description：IC MOTOR DRIVER 7V-60V 16SOIC
- Series：-
- Mfr：Allegro MicroSystems
- Package：Tape & Reel (TR)
- Motor Type - Stepper：-
- Motor Type - AC, DC：Brushless DC (BLDC)
- Function：Controller - Commutation, Direction Management
- Output Configuration：Pre-Driver - Half Bridge
- Interface：Parallel
- Technology：Power MOSFET
- Step Resolution：-
- Applications：General Purpose
- Current - Output：-
- Voltage - Supply：7V ~ 60V
- Voltage - Load：-
- Operating Temperature：-40°C ~ 135°C (TA)
- Mounting Type：Surface Mount
- Package / Case：16-PowerSOIC (0.295", 7.50mm Width)
- Supplier Device Package：16-SOIC
- Grade：-
- Qualification：-
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Overview
The A3946KLBTR is a motor driver integrated circuit manufactured by Allegro MicroSystems, designed for brushless DC (BLDC) motor applications. It operates within a supply voltage range of 7V to 60V and supports an ambient operating temperature from -40°C to 135°C. The device utilizes power MOSFET technology and features a parallel interface for control signals. It is housed in a 16-SOIC package with dimensions of 0.295 inches (7.50mm) width. This component functions as a pre-driver with a half-bridge output configuration, providing commutation and direction management capabilities.
Feature Summary
- Integrated power MOSFET technology for efficient motor driving
- Supports commutation and direction management for BLDC motors
- Half-bridge output configuration with parallel interface
Applications
- Brushless DC (BLDC) motor control systems
- General purpose motor driver applications
Procurement Notes
Verify the current manufacturing status of the A3946KLBTR before procurement planning, as it is listed as obsolete or discontinued in available records. Confirm RoHS compliance requirements, as this specific variant may not meet current RoHS3 standards compared to its T-series counterparts. Ensure that the 16-SOIC package availability aligns with your assembly equipment specifications. Cross-reference with active substitutes like the A3946KLPTR-T if long-term supply stability is required for production.
Selection Notes
Select the A3946KLBTR only if legacy design compatibility with the 16-SOIC package is strictly required. Consider the A3946KLPTR-T for new designs due to its active status and RoHS3 compliance. Evaluate thermal performance needs against the -40°C to 135°C operating range. Verify that the 7V to 60V supply voltage range matches the system power architecture. Assess whether the parallel interface meets the control logic requirements of the host microcontroller.
Part Context
The A3946KLBTR belongs to the A3946 family of motor drivers from Allegro MicroSystems. It shares core functional specifications with other variants such as the A3946KLPTR-T but differs in packaging and regulatory compliance. While the KLPTR-T variant is actively supported in a 16-eTSSOP-EP package, the KLBTR uses a 16-SOIC form factor. This distinction is critical for PCB layout and mechanical integration in existing designs utilizing the SOIC footprint.
Replacement Considerations
The A3946KLPTR-T is identified as a parameter-equivalent replacement for the A3946KLBTR. Note that the replacement utilizes a 16-eTSSOP-EP package rather than the original 16-SOIC, requiring PCB footprint adaptation. The KLPTR-T offers RoHS3 compliance and active manufacturing status.
