Atmel ATA6628 LIN总线汽车电子收发方案

Atmel 公司的ATA6628 是全集成LIN总线收发器，和LIN 2.0, 2.1 与SAEJ2602-2规范兼容。ATA6628集成了低压降3.3V/50mA输出的稳压器和看门狗。电源电压高达40V，能采用主/从模式工作，高速工作模式高达115kBaud，主要用在汽车车身如门模块，座位控制或智能传感器以及动力总成应用如引擎控制系统。本文介绍ATA6628主要特性，方框图和应用电路。

ATA6628： LIN Bus Transceiver with 3.3V (5V) Regulator and Watchdog

The ATA6628 is a fully integrated LIN transceiver, which complies with the LIN 2.0, 2.1 and SAEJ2602-2 specifications. It has a low-drop voltage regulator for 3.3V/50 mA output and a window watchdog. The ATA6630 has the same functionality as the ATA6628; however, it uses a 5V/50 mA regulator. The voltage regulator is able to source 50 mA, but the output current can be boosted by using an external NPN transistor. This chip combination makes it possible to develop inexpensive, simple, yet powerful slave and master nodes for LIN-bus systems. ATA6628/ATA6630 are designed to handle the low-speed data communication in vehicles, e.g., in convenience electronics. Improved slope control at the LIN-driver ensures secure data communication up to 20 kBaud. Sleep Mode and Silent Mode guarantee very low current consumption.

ATA6628主要特性：

• Master and Slave Operation Possible
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