ATA6629(2014) 데이터 시트보기 (PDF) - Atmel Corporation

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ATA6629
(Rev.:2014)

LIN Bus Transceiver with Integrated Voltage Regulator

Atmel Corporation 

1. Description

Atmel® 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/85mA). 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 20kBaud. The bus output is designed to withstand high voltage.

Sleep mode and silent mode guarantee minimized current consumption even in the case of a floating or a short circuited

LIN-bus.

Figure 1-1. Block Diagram

RXD 5

Atmel ATA6629/ATA6631

VCC

5kΩ

Receiver

-

+

Normal and

Fail-safe

Mode

RF-filter

1 VS

4 LIN

VCC

TXD 6

TXD

Time-out

timer

Wake-up bus timer

Slew rate control

Short-circuit and

overtemperature

protection

EN 2

GND 3

Control

unit

Sleep

mode

VCC

switched

off

Normal/Silent/

Fail-safe Mode

3.3V/5V

Undervoltage reset

8 VCC

7 NRES

2

ATA6629/ATA6631 [DATASHEET]

9165F–AUTO–10/14

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