Rainbow Electronics ATA6670 - Manual (Page 14)

14
9204C–AUTO–09/11
Atmel ATA6670 [Preliminary]
7.12
Leakage current at loss of
battery, node has to sustain the
current that can flow under this
condition, bus must remain
operational under this condition
V
BAT
disconnected
V
SUP_Device
= GND
0V < V
BUS
< 18V
LIN I
BUS_NO_Bat
0.1 2 µA A
7.13 Capacitance on pin LIN to GND LIN C
LIN
20 pF D
8 LIN Bus Receiver
8.1 Center of receiver threshold
V
BUS_CNT
=
(V
th_dom
+ V
th_rec
) / 2
LIN V
BUS_CNT
0.475
×
V
S
0.5
×
V
S
0.525
×
V
S
V A
8.2 Receiver dominant state V
EN
= 5V LIN V
BUSdom
–27
0.4
×
V
S
V A
8.3 Receiver recessive state V
EN
= 5V LIN V
BUSrec
0.6
×
V
S
40 V A
8.4 Receiver input hysteresis V
HYS
= V
th_rec
– V
th_dom
LIN V
BUShys
0.028
×
V
S
0.1
×
V
S
0.175
×
V
S
V A
8.5
Pre-wake detection LIN
high-level input voltage
LIN V
LINH
V
S
–
2V
V
S
+
0.3V
V A
8.6
Pre-wake detection LIN
Low-level input voltage
Switches the LIN receiver on LIN V
LINL
–27V
V
S
–
3.3V
V A
8.7 LIN pre-wake pull-up current
V
S
< 27V
V
LIN
= 0V
LIN I
LINWAKE
–30 –10 µA A
9 Internal Timers
9.1
Dominant time for wake-up via
LIN bus
V
LIN
= 0V LIN t
BUS
30 90 150 µs A
9.3
Time delay for mode change
from fail-safe mode to normal
mode via pin EN
V
EN
= 5V EN t
norm
2 7 15 µs A
9.4
Time delay for mode change
from normal mode into sleep
mode via pin EN
V
EN
= 0V EN t
sleep
7 12 20 µs B
9.5 TXD dominant time out time V
TXD
= 0V TXD t
dom
27 55 70 ms A
9.6
Monitoring time for wake-up over
LIN bus
LIN t
mon
6 10 15 ms A
6. Electrical Characteristics (Continued)
5V < V
S
< 27V, T
j
= –40°C to +150°C; the values below are valid for each of the two nearly identical integrated LIN transceivers unless
otherwise specified.
No. Parameters Test Conditions Pin Symbol Min. Typ. Max. Unit Type*
*) Type means: A = 100% tested, B = 100% correlation tested, C = Characterized on samples, D = Design parameter