Atmel ATA6620-EK, ATA6623-EK Application Note

APPLICATION NOTE
ATA6620, ATA6620N, ATA6623, ATA6623C, ATA6625,
ATA6625C Development Board
ATA6620/23/25
Introduction
®
The development board for the Atmel ATA6620/23/25 (ATA6620-EK, ATA6623-EK,
ATA6625-EK) is designed to give designers a quick start with these ICs and for the proto-
typing and testing of new LIN designs.
The Atmel ATA6620 and the Atmel ATA6625 are fully integrated LIN transceivers including
a low-drop voltage regulator providing 5V/85mA. The only difference between the two parts
is the improved EMC behavior of the Atmel ATA6625. The Atmel ATA6623 is pin and func-
tion compatible with the Atmel ATA6620/25, but on the Atmel ATA6623 the voltage at the
regulator's output is 3.3V instead of 5V. The combination of LIN transceiver and voltage
regulator makes it possible to develop simple, powerful, and cheap slave nodes in LIN bus
systems.
The ICs are designed to handle the low-speed data communication in vehicles, for example
in convenience electronics. Improved slope control at the LIN-driver ensures secure data
communication up to 20Kbaud.
Besides normal mode there are two other modes, sleep mode and silent mode, which give
the designer the opportunity to create modules which meet the different requirements of the
application with respect to low current consumption.
This document has been developed to give the user a quick start using the development
board for the Atmel ATA6620/23/25. For more detailed information about the devices them-
selves, refer to the corresponding datasheets.
Figure 1. Atmel ATA6620/23/25 Development Board
4969C-AUTO-07/15