Datasheet > ATA6621N

ATA6621N

更新时间： 2024-11-24 06:38:31

品牌	Logo	应用领域
爱特美尔 - ATMEL		稳压器
页数	文件大小	规格书
28页	454K
描述
LIN Transceiver with 5V Regulator and Watchdog

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数据手册

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ATA6621N 数据手册

Features

• Supply Voltage up to 40V

• Operating Voltage V_S= 5V to 18V

• Slew Rate Control according to LIN Specification 2.0

• Supply Current during Sleep Mode Typically 10 µA

• Supply Current in Silent Mode Typically 40 µA

• Linear Low-drop Voltage Regulator:

– Normal Mode: V_CC= 5V ±2%/50 mA

– Silent Mode: V_CC= 5V ±7%/50 mA

LIN Transceiver

with 5V

Regulator and

Watchdog

– Sleep Mode: V_CCis Switched Off

• V_CCUndervoltage Detection (10 ms Reset time) and Watchdog Reset Logically

Combined at Output NRES

• Possibility of Boosting the Voltage Regulator with an External NPN Transistor

• LIN Physical Layer according to LIN Specification 2.0

• Wake-up Capability via LIN Bus or WAKE Pin

• Wake-up Recognition

• TXD Time-out Timer

• Debug Mode Watchdog Is Switched Off

• 60V Load Dump Protection at LIN Pin

• Bus Pin is Overtemperature and Short Circuit Protected versus GND and Battery

• Adjustable Watchdog Time via External Resistor

• Positive and Negative Trigger Input for Watchdog

• 5V CMOS Compatible I/O Pins to MCU

• Analog Temperature Monitor Output

ATA6621N

• High EMC and ESD Level

• Package: QFN 5 × 5 with 20 Pins

1. Description

The ATA6621N is a fully integrated LIN transceiver, complying with the LIN specifica-

tion, and with a low-drop voltage regulator for 5V/50 mA output and a window

watchdog adjustable via an external resistor. In this QFN20 package, the voltage reg-

ulator is able to source 50 mA at V_S= 18V even at an ambient temperature of 105°C.

The output current of the regulator can be boosted by using an external NPN transis-

tor. This combination makes it possible to develop simple, but powerful and cheap,

slave nodes in LIN bus systems. ATA6621N 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 20 kBaud. The bus

output is capable of withstanding 60V. Sleep mode and Silent mode guarantee a very

low current consumption.

4887I–AUTO–09/09

12 3 4 5 6 7...28

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