ATA6620-TAQY Atmel, ATA6620-TAQY Datasheet - Page 10

• Manufacturer Part Number: ATA6620-TAQY
• Description: IC TXRX LIN BUS 5V/50MA 8SOIC
• Manufacturer: Atmel
• Type: Transceiverr

Specifications of ATA6620-TAQY

• Protocol: LIN
• Voltage - Supply: 5 V ~ 18 V
• Mounting Type: Surface Mount
• Package / Case: SO-8
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Number Of Drivers/receivers: -

Figure 4-6.
4.3
10
Pre-normal Mode
ATA6620N
LIN Bus
Wake Up from Silent Mode at an Insufficient Falling Edge at Pin LIN
NRES
TXD
RXD
VCC
EN
When designing the complete system it has to be considered, that in this case (only in pre-nor-
mal mode) the pin TXD of the ATA6620N works as an output.
At system power-up the device automatically switches to Pre-normal mode. The voltage regula-
tor is switched on (V
The NRES output switches to low for t
communication is switched off, and the undervoltage detection is active.
A power-down of V
after powering up the IC. During this mode the TXD pin is an output.
If undervoltage switch to pre-normal mode
Node ln silent mode
VLIN < V
VLIN > 0.6 V
Wake-up filtering
Silent mode
High
High
time t
S
- 1V and
S
Batt
WAKE
CC
(V
= 5V/50 mA) (see
S
< 4.15V) during Silent or Sleep mode switches into Pre-normal mode
Regulator Wake-up Time
res
= 10 ms and sends a reset to the microcontroller. LIN
Figure 4-7 on page
Pre-normal Mode
Pre-normal mode
Undervoltage detection active
Low
Low
11) after typically t
Normal mode
EN High
Normal Mode
4850I–AUTO–09/09
VCC
> 300 µs.