ATA663254-GAQW

Drivers, Receivers, Transceivers Overview

The ATA663254-GAQW is a LIN system basis chip (SBC) from Microchip Technology, integrating a LIN transceiver compliant with LIN 2.0 through 2.2A specifications and a linear low-drop voltage regulator. It operates within a supply voltage range of 5V to 28V and provides a regulated 5.0V output at VCC with ±2% tolerance and an 85 mA current capability. The device supports Normal, Silent, Sleep, and Fail-Safe modes, with typical supply currents of 9 μA in Sleep mode and 47 μA in Silent mode. It features wake-up recognition via the LIN bus, undervoltage detection with an open-drain reset output (NRES), and protection against short circuits and overtemperature conditions.

Drivers, Receivers, Transceivers Feature Summary

• Integrates a LIN physical layer transceiver compatible with LIN 2.0, 2.1, 2.2, and 2.2A standards alongside a 5V linear voltage regulator.
• Supports multiple operating modes including Normal, Silent, Sleep, and Fail-Safe to optimize power consumption and manage system states.
• Includes wake-up source recognition capabilities allowing the device to distinguish between LIN bus events and supply voltage undervoltage.
• Provides comprehensive protection features such as short-circuit and overtemperature protection for both the voltage regulator and the LIN bus pin.

Drivers, Receivers, Transceivers Applications

• Slave nodes in LIN bus systems for automotive convenience electronics
• Low-speed data communication interfaces in vehicle networks
• System basis chips requiring integrated power regulation and bus communication

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix GAQW corresponds to the required package type and tape-and-reel configuration. Confirm that the AEC-Q100 qualification meets the project's automotive reliability standards. Ensure the 8-Lead SOIC or VDFN package variant matches the PCB footprint design. Check for any recent product change notifications regarding material or manufacturing site updates.

Drivers, Receivers, Transceivers Selection Notes

Select the ATA663254 when a 5V regulated output is required for the microcontroller and peripheral loads. Choose this part over the ATA663231 if the system design specifically necessitates a 5V rail rather than 3.3V. Consider the 85 mA current limit when sizing external capacitors and estimating peak load currents. Verify that the operating temperature range covers the intended application environment.

Drivers, Receivers, Transceivers Part Context

The ATA663254 belongs to the ATA663201/03/31/54 device family, which includes both LIN System Basis Chips and standalone voltage regulators. This family shares compatible footprints between the SBC variants and the regulator-only variants, facilitating design flexibility. The ATA663254 specifically serves as the 5V regulator counterpart to the 3.3V ATA663231 within the SBC lineup.

Drivers, Receivers, Transceivers Replacement Considerations

The ATA663231 is a functional substitute within the same family but provides a 3.3V regulator output instead of 5V. Other members of the ATA6632xx series may offer different voltage outputs or package options. Verify electrical compatibility and pinout alignment before substitution.