ATA6629 Просмотр технического описания (PDF) - Atmel Corporation

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ATA6629

LIN Bus Transceiver with Integrated Voltage Regulator

Atmel Corporation 

Features

• Supply Voltage up to 40V

• Operating Voltage VS = 5V to 27V

• Typically 10 µA Supply Current During Sleep Mode

• Typically 40 µA Supply Current in Silent Mode

• Linear Low-drop Voltage Regulator:

– Normal, Fail-safe, and Silent Mode

– ATA6629: VCC = 3.3V ±2%

– ATA6631: VCC = 5.0V ±2%

– Sleep Mode: VCC is Switched Off

• VCC Undervoltage Detection with Reset Open Drain Output NRES (4 ms Reset Time)

• Voltage Regulator is Short-circuit and Over-temperature Protected

• LIN Physical Layer According to LIN 2.0, 2.1 and SAEJ2602-2

• Wake-up Capability via LIN Bus (90 µs Dominant)

• TXD Time-out Timer

• Bus Pin is Overtemperature and Short-circuit Protected versus GND and Battery

• Advanced EMC and ESD Performance

• Fulfills the OEM “Hardware Requirements for LIN in Automotive Applications Rev.1.1”

• Interference and Damage Protection According to ISO7637

• Package: SO8

1. Description

ATA6629/ATA6631 is a fully integrated LIN transceiver, designed according to the LIN

specification 2.0, 2.1 and SAEJ2602-2, with a low-drop voltage regulator

(3.3V/5V/50 mA). The combination of voltage regulator and bus transceiver makes it

possible to develop simple, but powerful, slave nodes in LIN Bus systems.

ATA6629/ATA6631 is 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 20 kBaud with an RC oscillator for

the protocol handling. The bus output is designed to withstand high voltage. Sleep

Mode (voltage regulator switched off) and Silent Mode (communication off; VCC

voltage on) guarantee minimized current consumption.

LIN Bus

Transceiver

with Integrated

Voltage

Regulator

ATA6629

ATA6631

9165B–AUTO–05/10

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