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參數資料
| 型號： | ATA6621-PGQW |
| 廠商： | ATMEL CORP |
| 元件分類： | 網絡接口 |
| 英文描述： | LIN Transceiver with 5V Regulator and Watchdog |
| 中文描述： | DATACOM, INTERFACE CIRCUIT, QCC20 |
| 封裝： | 5 X 5 MM, 0.65 MM PITCH, LEAD FREE, QFN-20 |
| 文件頁數： | 1/26頁 |
| 文件大?。?/td> | 260K |
| 代理商： | ATA6621-PGQW |
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
– Sleep Mode: V
CC
is Switched Off
V
CC
Undervoltage 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
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
High EMC and ESD Level
Package: QFN 5
×
5 with 20 Pins
1.
The ATA6621 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. ATA6621 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.
Description
LIN Transceiver
with 5V
Regulator and
Watchdog
ATA6621
Rev. 4887B–AUTO–01/06
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