A3942KLGTR-T

Overview

The A3942KLGTR-T is an automotive-grade, eight-inch version of the A3942 brushless DC motor controller and driver. It integrates a high-voltage power stage with four half-bridge outputs capable of driving up to 60V. The device supports SPI parallel interface for control and includes features such as commutation logic, direction management, and overcurrent protection. Operating within a supply voltage range of 4.5V to 60V, it functions across a temperature range of -40°C to 125°C in a 38-TSSOP package.

Feature Summary

• Integrates high-voltage power stage with four half-bridge outputs
• Supports SPI parallel interface for digital control
• Includes built-in commutation and direction management logic
• Designed for automotive-grade reliability and durability

Applications

• Brushed DC motor control systems
• Automotive cooling fan drivers
• Industrial motion control applications
• High-voltage motor drive solutions

Procurement Notes

Verify component authenticity through authorized Allegro MicroSystems distributors or certified partners. Confirm that the received parts match the specified 38-TSSOP package and electrical ratings. Check manufacturing dates and lot codes against current production notices. Ensure storage conditions comply with moisture sensitivity level requirements prior to assembly.

Selection Notes

Select this component when an eight-inch process node is required for improved robustness compared to standard versions. Consider the 60V maximum supply rating and integrated control logic for simplified system design. Evaluate thermal performance within the specified operating temperature range. Verify compatibility with existing SPI communication protocols and mechanical footprint constraints.

Part Context

This part belongs to the A3942 series, representing an enhanced eight-inch variant designed for higher reliability in demanding environments. It serves as a direct upgrade path for applications previously using smaller process nodes, offering improved noise immunity and thermal characteristics while maintaining pin compatibility with related family members.

Replacement Considerations

• A3942KLGTR

FAQ

What is the maximum supply voltage supported by the A3942KLGTR-T?

The device supports a supply voltage range from 4.5V to 60V.

Does the A3942KLGTR-T include internal commutation logic?

Yes, the IC integrates commutation and direction management logic for brushless DC motor control.