Rainbow Electronics ATA6662 - Manual (Page 10)

10
4916E–AUTO–02/07
ATA6662 [Preliminary]
7 LIN Bus Driver
7.1 Driver recessive output voltage R
LOAD
= 500
Ω
/ 1 k
Ω
6 V
BUSrec
0.9
×
V
S
V
S
V A
7.2
Driver dominant voltage
V
BUSdom_DRV_LoSUP
V
VS
= 7V, R
load
= 500
Ω
6 V
_LoSUP
1.2 V A
7.3
Driver dominant voltage
V
BUSdom_DRV_HiSUP
V
VS
= 18V, R
load
= 500
Ω
6 V
_HiSUP
2 V A
7.4
Driver dominant voltage
V
BUSdom_DRV_LoSUP
V
VS
= 7V, R
load
= 1000
Ω
6 V
_LoSUP_1k
0.6 V A
7.5
Driver dominant voltage
V
BUSdom_DRV_HiSUP
V
VS
= 18V, R
load
= 1000
Ω
6 V
_HiSUP_1k_
0.8 V A
7.6 Pull-up resistor to V
S
The serial diode is
mandatory
6 R
LIN
20 30 60 k
Ω
A
7.7
LIN current limitation
V
BUS
= V
BAT_max
6 I
BUS_LIM
40 120 200 mA A
7.8
Input leakage current at the
receiver, including pull-up
resistor as specified Input leakage current
Driver off
V
BUS
= 0V, V
Batt
= 12V
6 I
BUS_PAS_dom
–1 mA A
7.9 Leakage current LIN recessive
Driver off
8V < V
BAT
< 18V
8V < V
BUS
< 18V
V
BUS
≥
V
BAT
6 I
BUS_PAS_rec
15 20 µA A
7.10
Leakage current at ground loss;
Control unit disconnected from
ground; Loss of local ground
must not affect communication in
the residual network
GND
Device
= V
S
V
BAT
=12V
0V < V
BUS
< 18V
6 I
BUS_NO_gnd
–10 +0.5 +10 µA A
7.11
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
6 I
BUS
5 15 µA A
8 LIN Bus Receiver
8.1 Center of receiver threshold
V
BUS_CNT
=
(V
th_dom
+ V
th_rec
) / 2
6 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 6 V
BUSdom
–27
0.4
×
V
S
V A
8.3 Receiver recessive state V
EN
= 5V 6 V
BUSrec
0.6
×
V
S
40 V A
8.4 Receiver input hysteresis V
HYS
= V
th_rec
– V
th_dom
6 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
6 V
LINH
V
S
–
1V
V
S
+
0.3V
V A
8.6
Pre-wake detection LIN
Low-level input voltage Switches the LIN receiver
on
6 V
LINL
–27V
V
S
–
3.3V
V A
6. Electrical Characteristics (Continued)
5V < V
S
< 27V, T
j
= –40°C to +150°C
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