ATA6625C-GAQW

Drivers, Receivers, Transceivers Overview

The ATA6625C-GAQW is a fully integrated LIN system basis chip designed for automotive slave nodes. It combines a LIN physical layer transceiver compliant with LIN 2.0, 2.1, and SAEJ2602-2 standards with an integrated linear low-drop voltage regulator. The device operates on a supply voltage (VS) ranging from 5V to 27V, with a maximum rating of 40V. The internal voltage regulator provides a stable 5.0V output with ±2% tolerance and supports up to 85mA load current. Key electrical parameters include a typical sleep mode supply current of 10µA and silent mode current of 57µA. The component features undervoltage detection, short-circuit protection, and overtemperature shutdown capabilities.

Drivers, Receivers, Transceivers Feature Summary

• Integrated 5V/85mA linear voltage regulator with undervoltage monitoring and reset output
• LIN physical layer compliance supporting normal, fail-safe, silent, and sleep modes
• Advanced EMC and ESD performance meeting ISO7637 interference protection standards
• Built-in TXD time-out timer and wake-up capability via LIN bus dominant signal

Drivers, Receivers, Transceivers Applications

• Automotive convenience electronics slave nodes
• Low-speed data communication in vehicle networks
• System basis chips requiring integrated power regulation and LIN interface

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix GAQW corresponds to the SO8 package configuration and taped and reeled quantity of 4000 units as documented in the official datasheet. Confirm that the component meets AEC-Q100 qualification requirements if applicable to the target automotive application environment.

Drivers, Receivers, Transceivers Selection Notes

Select this model when a 5.0V regulated output is required for the connected microcontroller or peripheral ICs. Ensure the application load does not exceed the 85mA current limit of the integrated regulator. Consider the ATA6623C variant if a 3.3V regulator output is needed instead of the 5.0V version provided by the ATA6625C.

Drivers, Receivers, Transceivers Part Context

This component belongs to the Atmel ATA6623C/ATA6625C family of LIN networking devices. It serves as a system basis chip that simplifies the design of LIN slave nodes by integrating the transceiver and power management functions into a single SO8 package. The device is designed to handle the robustness requirements of automotive environments while maintaining low power consumption during inactive states.

Drivers, Receivers, Transceivers Replacement Considerations

The ATA6623C-GAQW is a direct functional substitute within the same family, differing only in the integrated regulator output voltage (3.3V vs 5.0V). Verify that the downstream circuitry can tolerate the alternative regulator voltage before swapping components.

Drivers, Receivers, Transceivers FAQ

How does the device handle undervoltage conditions?

If the VCC voltage falls below the undervoltage detection threshold, the NRES output switches to low after a reset time delay, and the IC changes its state to fail-safe mode.

What is the mechanism for entering sleep mode?

Sleep mode is activated by switching the EN pin to low while the TXD signal is also logic low. In this mode, the voltage regulator is switched off, and the supply current drops to typically 10µA.

Is remote wake-up supported from silent or sleep modes?

Yes, a falling edge at the LIN pin followed by a dominant bus level maintained for a specific period and a subsequent rising edge results in a remote wake-up request, indicated by a low level at the RXD pin.