ATA6630 ATMEL [ATMEL Corporation], ATA6630 Datasheet

ATA6630

Manufacturer Part Number

ATA6630

Description

Negative Trigger Input for Watchdog

Manufacturer

ATMEL [ATMEL Corporation]

Datasheet

1.ATA6630.pdf (36 pages)

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Features

•

1. Description

The ATA6628 is a fully integrated LIN transceiver, which complies with the LIN 2.0,

2.1 and SAEJ2602-2 specifications. It has a low-drop voltage regulator for

3.3V/50 mA output and a window watchdog. The ATA6630 has the same functionality

as the ATA6628; however, it uses a 5V/50 mA regulator. The voltage regulator is able

to source 50 mA, but the output current can be boosted by using an external NPN

transistor. This chip combination makes it possible to develop inexpensive, simple, yet

powerful slave and master nodes for LIN-bus systems. ATA6628/ATA6630 are

designed to handle the low-speed data communication in vehicles, e.g., in conve-

nience electronics. Improved slope control at the LIN-driver ensures secure data

communication up to 20 kBaud. Sleep Mode and Silent Mode guarantee very low cur-

rent consumption.

Master and Slave Operation Possible

Supply Voltage up to 40V

Operating voltage V

Typically 10 µA Supply Current During Sleep Mode

Typically 40 µA Supply Current in Silent Mode

Linear Low-drop Voltage Regulator:

VCC- Undervoltage Detection (4 ms Reset Time) and Watchdog Reset Logical

Combined at Open Drain Output NRES

High-speed Mode Up to 115 kBaud

Internal 1:6 Voltage Divider for V

Negative Trigger Input for Watchdog

Boosting the Voltage Regulator Possible with an External NPN Transistor

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

Wake-up Capability via LIN-bus, Wake Pin, or Kl_15 Pin

INH Output to Control an External Voltage Regulator or to Switch off the Master Pull Up

Resistor

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

Adjustable Watchdog Time via External Resistor

Advanced EMC and ESD Performance

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

Interference and Damage Protection According ISO7637

Package: QFN 5 mm

– Normal, Fail-safe, and Silent Mode

– In Sleep Mode V

• ATA6628 V

• ATA6630 V

= 5V to 27V

= 3.3V ±2%

= 5.0V ±2%

5 mm with 20 Pins

is Switched Off

Battery

Sensing

LIN Bus

Transceiver

with 3.3V (5V)

Regulator and

Watchdog

ATA6628

ATA6630

Preliminary

9117E–AUTO–07/10

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