ATA6621-PGQW

ATA6621-PGQW Datasheet

Ï System Basis Chip ATA6621 LIN Transceiver With 5V Voltage Regulator and Watchdog

Part	Datasheet
ATA6621-PGQW	ATA6621-PGQW (pdf)

PDF Datasheet Preview
AUTOMOTIVE ICs Ï System Basis Chip ATA6621 LIN Transceiver With 5V Voltage Regulator and Watchdog The ATA6621 is a fully integrated LIN transceiver with voltage regulator and a window watchdog, and complying with the LIN specification The combination of voltage regulator and bus transceiver enables the development of simple but powerful slave nodes in LIN bus systems. In this QFN20 package, the voltage regulator is able to source 50 mA. It supplies the microcontroller and other ICs on the PCB. The output current of the regulator can be boosted by using an external NPN transistor. This combination makes it possible to develop simple, but powerful and cheap, slave nodes in LIN bus systems. The bus output is capable of withstanding 60V. Sleep mode voltage regulator switched off and silent mode voltage regulator 5V/±7% guarantee a very low current consumption. Microcontroller ATA6621 Receiver RXD Filter LIN Bus VS LIN TXD EN WAKE TXD Time-out Timer Wake-up timer TEMP Wake-up Bus Timer Control Unit Standby Mode Silent Mode LIN Output Stage Slew Rate Control Short-circuit and Over- temperature Protection Voltage Regulator Watchdog GND WD_OSC PVCC Booster PTRIG NTRIG NRES n Supply Voltage up to 40V n Operating Voltage VS = 5V to 18V n LIN Physical Layer According to LIN Spec. n Baud Rate up to 20 Kbaud n Linear Low Drop Voltage Regulator - Normal Mode VCC = 5V ±2%/50 mA - Silent Mode VCC = 5V ±7%/50mA - Sleep Mode VCC Is Switched Off n VCC Undervoltage Detection and Watchdog n Reset Logically Combined at Output NRES n 60V Load-dump Protection at LIN Pin n 42V PowerNet n Bus Pin Is Overtemperature and Shortn circuit-protected vs. GND and Battery n Extended ESD Level at LIN Bus Pin and n Supply VS Pin n Wake-up Capability via LIN Bus or WAKE Pin n Possibility to Boost the Voltage Regulator n with an External NPN Transistor n Analog Temperature Monitor Output n Package QFN20 5 mm x 5 mm n Highly Integrated Voltage Regulator and n Window Watchdog Included n System Costs Can Be Reduced by about n 25% No Need for Discrete Components n Ideally Suited for Very Small Designs n Since Less Board Space Is Needed Ordering Information Extended Part Number ATA6621-PGPW ATA6621-PGQW Package QFN20 5 mm x 5 mm QFN20 5 mm x 5 mm create a simple PC program to emulate the LIN master node. Testing and building LIN networks is both easy and inexpensive with Atmel’s hardware and software tools. The software tools can be downloaded online at products/Auto go to Tools & Software . Remarks 1.5k Tape & Reel, Pb-free 6k Tape & Reel, Pb-free LIN Family Overview ATA6661 Type Stand-alone LIN Transceiver Features LIN Interface Supply/ Operating Voltage V 40/181 ATA6662 Stand-alone LIN Transceiver LIN Interface 40/27 ATA6620 System Basis Chip SBC LIN Interface + Voltage Regulator 40/181 ATA6621 System Basis Chip SBC LIN Interface + Voltage Regulator + Watchdog 40/181 ATA6602/03 System MCM ATA6621 + uC LIN Interface + Voltage Regulator + Watchdog + AVR ATmega 88/168 40/181 Load-dump Protection at LIN Pin V Modes Package Pre-normal Mode Normal Mode Sleep Mode Pre-normal Mode Normal Mode Sleep Mode Pre-normal Mode Normal Mode Sleep Mode Silent Mode

PDF Datasheet Preview

AUTOMOTIVE ICs
Ï System Basis Chip ATA6621 LIN Transceiver With 5V Voltage Regulator and Watchdog

The ATA6621 is a fully integrated LIN transceiver with voltage regulator and a window watchdog, and complying with the LIN specification The combination of voltage regulator and bus transceiver enables the development of simple but powerful slave nodes in LIN bus systems.

In this QFN20 package, the voltage regulator is able to source 50 mA. It supplies the microcontroller and other ICs on the PCB. The output current of the regulator can be boosted by using an external NPN transistor. This combination makes it possible to develop simple, but powerful and cheap, slave nodes in LIN bus systems. The bus output is capable of withstanding 60V. Sleep mode voltage regulator switched off and silent mode voltage regulator 5V/±7% guarantee a very low current consumption.

Microcontroller

ATA6621

Receiver RXD

Filter

LIN Bus

VS LIN

TXD EN

WAKE

TXD Time-out

Timer

Wake-up timer

TEMP

Wake-up Bus Timer Control Unit

Standby Mode Silent Mode

LIN Output Stage Slew Rate Control

Short-circuit and Over-
temperature Protection

Voltage Regulator

Watchdog

GND WD_OSC

PVCC Booster

PTRIG

NTRIG NRES
n Supply Voltage up to 40V
n Operating Voltage VS = 5V to 18V n LIN Physical Layer According to LIN Spec.
n Baud Rate up to 20 Kbaud
n Linear Low Drop Voltage Regulator - Normal Mode VCC = 5V ±2%/50 mA - Silent Mode VCC = 5V ±7%/50mA - Sleep Mode VCC Is Switched Off
n VCC Undervoltage Detection and Watchdog n Reset Logically Combined at Output NRES n 60V Load-dump Protection at LIN Pin n 42V PowerNet
n Bus Pin Is Overtemperature and Shortn circuit-protected vs. GND and Battery
n Extended ESD Level at LIN Bus Pin and n Supply VS Pin
n Wake-up Capability via LIN Bus or WAKE Pin
n Possibility to Boost the Voltage Regulator n with an External NPN Transistor
n Analog Temperature Monitor Output
n Package QFN20 5 mm x 5 mm
n Highly Integrated Voltage Regulator and n Window Watchdog Included
n System Costs Can Be Reduced by about n 25% No Need for Discrete Components
n Ideally Suited for Very Small Designs n Since Less Board Space Is Needed
Ordering Information

Extended Part Number ATA6621-PGPW ATA6621-PGQW

Package QFN20 5 mm x 5 mm QFN20 5 mm x 5 mm
create a simple PC program to emulate the LIN master node. Testing and building LIN networks is both easy and inexpensive with Atmel’s hardware and software tools. The software tools can be downloaded online at products/Auto go to Tools & Software .

Remarks 1.5k Tape & Reel, Pb-free 6k Tape & Reel, Pb-free

LIN Family Overview

ATA6661

Type

Stand-alone LIN Transceiver

Features LIN Interface

Supply/ Operating Voltage V
40/181

ATA6662

Stand-alone LIN Transceiver

LIN Interface
40/27

ATA6620

System Basis Chip SBC

LIN Interface + Voltage Regulator
40/181

ATA6621

System Basis Chip SBC

LIN Interface + Voltage Regulator + Watchdog
40/181

ATA6602/03

System MCM ATA6621 + uC

LIN Interface + Voltage Regulator + Watchdog + AVR ATmega 88/168
40/181

Load-dump Protection at LIN Pin V

Modes

Package

Pre-normal Mode

Normal Mode

Sleep Mode

Pre-normal Mode

Normal Mode

Sleep Mode

Pre-normal Mode

Normal Mode

Sleep Mode

Silent Mode

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Datasheet ID: ATA6621-PGQW 519198