ATA6629/ATA6631 [DATASHEET]

9165F–AUTO–10/14

2

1.

Description

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

3

GND

2

EN

6

TXD

5

RXD

VCC

8

NRES

7

Short-circuit and

overtemperature

protection

Normal/Silent/

Fail-safe Mode

3.3V/5V

Control

unit

Normal and

Fail-safe

Mode

RF-filter

LIN

VS

1

4

TXD

Time-out

timer

Slew rate control

Undervoltage reset

Sleep

mode

VCC

switched

off

Wake-up bus timer

Atmel ATA6629/ATA6631

Receiver

V

CC

-

+

V

CC

5kΩ