ATA6602 ATMEL Corporation, ATA6602 Datasheet - Page 9
ATA6602
Manufacturer Part Number
ATA6602
Description
LIN and Microcontroller System-In-Package: LIN Transceiver, integrated 5V/50 mA voltage regulator, window watchdog and automotive AVR ATmega88 (8 kBytes Flash); green QFN48 package.
Manufacturer
ATMEL Corporation
Datasheet
1.ATA6602.pdf
(362 pages)
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ATA6602/ATA6603
In Silent Mode, the 5V regulator is in low tolerance mode (4.65V to 5.35V) and can source up to
50 mA. The internal slave termination between pin LIN and pin VS is disabled to minimize the
power dissipation in case pin LIN is shorted to GND. Only a weak pull-up current (typically
10 µA) between pin LIN and pin VS is present.
The Silent Mode voltage tolerance is sufficient to run the internal timers of the microcontroller.
The undervoltage reset is now V
< 4.4V. If an undervoltage condition occurs, the NRES is
DDthS
switched to low and the LIN-SBC changes state to Pre Normal Mode.
A falling edge at pin LIN followed by a dominant bus level maintained for a certain time period
(T
) results in a remote wake-up request. The device switches from Silent Mode to Pre Normal
bus
Mode. The internal LIN slave termination resistor is switched on. The remote wake-up request is
indicated by a low level at pin RXD to interrupt the microcontroller (see
Figure 3-6 on page
12).
With EN high, you can switch directly from Silent Mode to Normal Mode.
Figure 3-3.
Switch to Silent Mode
Silent Mode
EN
Mode Select window
TXD
T
= 3.2 µs
d
NRES
VCC
Delay time Silent Mode
T
_sleep = maximum 15 µs
d
LIN
LIN switches directly to recessive mode
9
4921C–AUTO–01/07
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