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Product Detailed Parameters
- Description：IC MOTOR DRVR 5.5V-50V 28ETSSOP
- Series：-
- Mfr：Allegro MicroSystems
- Package：Tape & Reel (TR),Cut Tape (CT)
- Motor Type - Stepper：-
- Motor Type - AC, DC：Brushed DC
- Function：Controller - Commutation, Direction Management
- Output Configuration：Pre-Driver - Half Bridge (2)
- Interface：SPI
- Technology：NMOS
- Step Resolution：-
- Applications：-
- Current - Output：-
- Voltage - Supply：5.5V ~ 50V
- Voltage - Load：-
- Operating Temperature：-40°C ~ 150°C (TA)
- Mounting Type：Surface Mount
- Package / Case：28-TSSOP (0.173", 4.40mm Width) Exposed Pad
- Supplier Device Package：28-TSSOP-EP
- Grade：Automotive
- Qualification：-
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Overview
The A3922KLPTR-T is an automotive-grade full-bridge MOSFET driver with ASIL features, designed for brushed DC motor applications. It operates within a supply voltage range of 5.5 V to 50 V and supports output currents up to 27 mA. The device utilizes an SPI interface for control and includes functions for commutation and direction management. It is housed in a 28-TSSOP-EP package with exposed pad, suitable for surface mount installation across a temperature range of -40°C to +150°C.
Feature Summary
- Integrated full-bridge MOSFET driver architecture with dedicated dual sense amplifiers for precise current monitoring.
- Supports advanced safety integrity levels through built-in ASIL features for robust automotive reliability.
- Enables efficient motor control via serial peripheral interface (SPI) communication for configuration and status feedback.
Applications
- Brushed DC motor drivers in automotive systems
- Motion control modules requiring high reliability
- Ignition controller circuits
Procurement Notes
Verify the specific ordering suffix and tape change notices prior to procurement. Confirm that the component meets the required automotive qualification standards and functional safety specifications for the intended application environment. Ensure compatibility with existing PCB footprints and SPI interface requirements.
Selection Notes
Select this component for designs requiring integrated power switching and sensing in a compact package. Consider the thermal performance of the exposed pad design for heat dissipation. Verify that the system voltage remains within the specified operational limits to ensure stable performance.
Part Context
This part belongs to the A3922 series from Allegro MicroSystems, focusing on integrated motor drive solutions. It combines power stage drivers with control logic and sensing capabilities, simplifying the design of complex motor control systems while maintaining high efficiency and reliability.
Replacement Considerations
Check for direct pin-to-pin replacements within the same series or family. Verify electrical parameter compatibility and interface protocol support before substituting with alternative components.
FAQ
What is the maximum operating temperature for the A3922KLPTR-T?
The device supports an extended operating temperature range up to +150°C.
Does the A3922KLPTR-T include current sensing capabilities?
Yes, it integrates dual sense amplifiers for accurate current monitoring and protection.
