ATA6622-PGQW Atmel, ATA6622-PGQW Datasheet - Page 11

• Manufacturer Part Number: ATA6622-PGQW
• Description: TXRX LIN BUS REG WATCHDOG 20-QFN
• Manufacturer: Atmel
• Type: Transceiverr

Specifications of ATA6622-PGQW

• Number Of Drivers/receivers: 1/1
• Protocol: LIN
• Voltage - Supply: 5 V ~ 27 V
• Mounting Type: Surface Mount
• Package / Case: 20-QFN Exposed Pad
• Processor Series: ATA6x
• Core: AVR8
• Data Bus Width: 8 bit
• Maximum Operating Temperature: + 150 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

4.5
4986J–AUTO–03/11
Unpowered Mode
If you connect battery voltage to the application circuit, the voltage at the VS pin increases
according to the block capacitor (see
undervoltage threshold VS
The VCC output voltage reaches its nominal value after t
VCC capacitor and the load.
The NRES is low for the reset time delay t
possible.
Figure 4-5.
Watchdog
regulator
voltage
LIN bus
TXD
VCC
NRES
RXD
EN
LIN Wake Up from Sleep Mode
Bus wake-up filtering time
Watchdog off
Low
Low
th
t
Atmel ATA6622/ATA6624/ATA6626
bus
, the IC mode changes from Unpowered Mode to Fail-safe Mode.
Off state
Figure 5-1 on page
reset
. During this time, t
Reset
time
Regulator wake-up time
Fail-safe Mode
VCC
Start watchdog lead time t
14). After VS is higher than the VS
start-up time delay
Low
On state
Microcontroller
. This time, t
reset
, no mode change is
VCC
, depends on the
EN High
Normal Mode
d
11