ATA6662 ATMEL Corporation, ATA6662 Datasheet

ATA6662

Manufacturer Part Number

ATA6662

Description

LIN Transceiver

Manufacturer

ATMEL Corporation

Datasheet

1.ATA6662.pdf (16 pages)

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Download datasheet (258Kb)

Features

•

1. Description

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

specification 2.0 and SAEJ2602-2. It interfaces the LIN protocol handler and the phys-

ical 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 pro-

tocol handling. Sleep mode guarantees minimal current consumption. The ATA6662

has advanced EMI and ESD performance.

Figure 1-1.

Operating Range from 5V to 27V

Baud Rate up to 20 Kbaud

Improved Slew Rate Control According to LIN Specification 2.0 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 Typically 5 µA if V

Overtemperature Protection

High EMC Level

Interference and Damage Protection According to ISO/CD 7637

ESD HBM 6 kV at LIN Bus Pin and Supply VS Pin

WAKE

TXD

RXD

Block Diagram

Wake-up

time-out

timer

TXD

Wake-up bus timer

BAT

Slew rate control

Standby mode

Receiver

Control unit

Is Disconnected

INH

Short circuit and over-

temperature protection

Filter

LIN

GND

LIN Transceiver

ATA6662

Preliminary

4916E–AUTO–02/07

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