ETAS
Technical Data
BR_XETK-S4.0
-
User
Guide
44
7.6
Power Supply
Parameter
Symbol
Condition
Min Typ Max Unit
Permanent power
supply
(car battery)
U
Batt
Vehicle usage
1)
6.0
12
36
V
[all values ±0%]
Cranking voltage U
Batt
< 3 seconds
3
V
Standby current
I
STBY
U
Batt
= 12
V;
ECU
off;
no load from ECU;
T = 20
°C
30
40
50
mA
Operating current I
Batt
U
Batt
= 12
V;
no load from ECU;
T = 20
°C
90
135 250 mA
Power dissipation P
Batt
U
Batt
= 12
V;
I
=
0
mA at pin
VDDSTBY;
T = 20
°C
1.62
W
Power dissipation P
Batt
U
Batt
= 12
V;
I
=
500
mA at pin
VDDSTBY;
I
=
80
mA at pin
VDDPSTBY;
T = 20
°C
2.7
W
Fuse in the ETK Ubatt supply line.
Only required if the power supply or ECU is not pro
-
tected accordingly.
MINI, 2 A 58 V DC
(Littelfuse
0997002.WXN))
1)
The BR_XETK-S4.0 implements reverse voltage protection in the same
range
and may be used only with central load dump protection.
24 V vehicles require U
Batt
disturbing pulse reduction to 12 V vehicle system.
12 V vehicles don’t require special disturbing pulse reductions.
NOTE
The BR_XETK-S4.0 will accept permanent power supply voltage dips (for
additional details of 3
V low voltage operation, see ISO standard 16750).
NOTE
Maximum Voltage to Earth or to any accessible parts (e.g., ECU Housing,
Vehicle Chassis) 60V DC / 30V AC.