ATA6662 データシートの表示（PDF） - Atmel Corporation

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ATA6662

LIN Transceiver

Atmel Corporation 

Features

• Operating Range from 5V to 27V

• Baud Rate up to 20 Kbaud

• Improved Slew Rate Control According to LIN Specification 2.0, 2.1 and SAEJ2602-2

• Fully Compatible with 3.3V and 5V Devices

• Dominant Time-out Function at Transmit Data (TXD)

• Normal and Sleep Mode

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

• External Wake-up via WAKE Pin (35 µs Low Level)

• Control of External Voltage Regulator via INH Pin

• Very Low Standby Current During Sleep Mode (10 µA)

• Wake-up Source Recognition

• Bus Pin Short-circuit Protected versus GND and Battery

• LIN Input Current < 2 µA if VBAT Is Disconnected

• Overtemperature Protection

• High EMC Level

• Interference and Damage Protection According to ISO/CD 7637

• Fulfills the OEM “Hardware Requirements for LIN in Automotive Applications Rev.1.0”

LIN Transceiver

ATA6662

ATA6662C

1. Description

The ATA6662 is a fully integrated LIN transceiver complying with the LIN specification

2.0, 2.1 and SAEJ2602-2. It interfaces the LIN protocol handler and the physical layer.

The device is designed to handle the low-speed data communication in vehicles, for

example, in convenience electronics. Improved slope control at the LIN bus ensures

secure data communication up to 20 Kbaud with an RC oscillator for protocol han-

dling. Sleep Mode guarantees minimal current consumption. The ATA6662 has

advanced EMI and ESD performance.

Figure 1-1. Block Diagram

RXD 1

Receiver

+

Filter

7 VS

6 LIN

TXD 4

VS

WAKE 3

TXD

time-out

timer

Wake-up

timer

Wake-up bus timer

Slew rate control

Control unit

Sleep mode

2

EN

Short-circuit and over-

temperature protection

VS

8

INH

5 GND

4916O–AUTO–05/10

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