Rainbow Electronics ATA6834 - Manual (Page 18)

18
9122B–AUTO–10/08
ATA6833/ATA6834 [Preliminary]
4.10
Input leakage current at the
receiver including pull-up
resistor as specified
Input leakage current
driver off
V
BUS
= 0V
V
BAT
= 12V
I
BUS_PAS_dom
–1 mA A
4.11
Leakage current LIN
recessive
Driver off
8V < V
BAT
< 18V
8V < V
BUS
< 18V
V
BUS
= V
BAT
I
BUS_PAS_rec
20 µA A
4.12
Leakage current at ground
loss
Control unit disconnected
from ground
Loss of local ground must
not affect communication in
the residual network
GND
Device
= VS
V
BAT
= 12V
0V < V
BUS
< 18V
I
BUS_NO_gnd
–1 +1 mA A
4.13
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
I
BUS
100 µA A
4.14 Center of receiver threshold
V
BUS_CNT
=
(V
th_dom
+ V
th_rec
)/2
V
BUS_CNT
0.475
×
V
VBAT
0.5
×
V
VBAT
0.525
×
V
VBAT
V A
4.15 Receiver dominant state V
EN
= 5V V
BUSdom
0.4
×
V
VBAT
V A
4.16 Receiver recessive state V
EN
= 5V V
BUSrec
0.6
×
V
VBAT
V A
4.17 Receiver input hysteresis V
HYS
= V
th_rec
– V
th_dom
V
BUShys
0.175
×
V
VBAT
V A
4.18 Duty cycle 1
7V < V
VBAT
< 18V
TH
rec(max)
= 0.744
×
V
VBAT
TH
Dom(max)
= 0.581
×
V
VBAT
t
Bit
= 50 µs
D1 = t
Bus_rec(min)
/(2
×
t
Bit
)
Load1: 1 nF + 1 k
Ω
Load2: 10 nF + 500
Ω
D1 0.396 A
4.19 Duty cycle 2
7V < V
VBAT
< 18V
TH
rec(min)
= 0.422
×
V
VBAT
TH
Dom(min)
= 0.284
×
V
VBAT
t
Bit
= 50 µs
D2 = t
Bus_rec(max)
/(2×t
Bit
)
Load1: 1 nF + 1 k
Ω
Load2: 10 nF + 500
Ω
D2 0.581 A
4.20 Receiver propagation delay
7V < V
VBAT
< 18V
t
rec_pd
= max(t
rx_pdr
, t
rx_pdf
)
t
rx_pd
6 µs A
4.21
Symmetry of receiver
propagation delay rising
edge minus falling edge
7V < V
VBAT
< 18V
t
rx_sym
= t
rx_pdr
– t
rx_pdf
t
rx_sym
–2 +2 µs
8. Electrical Characteristics (Continued)
All parameters given are valid for 5.5V
≤
V
VBAT
≤
18V and for –40°C
≤
T
J
≤
150°C (200°C) unless stated otherwise. All values refer to PIN
GND. [xxx] Values for the ATA6834.
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