ETAS
Technical Data
XETK-S30.0 - User’s Guide
36
7.6
Power Supply
Parameter
Symbol
Condition
Min
Typ
Max Unit
Permanent power
supply
(car battery)
U
Batt
Vehicle usage
1)
4.3
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
15
28
40
mA
Operating current I
Batt
U
Batt
= 12 V;
no load from ECU;
T = 20 °C
70
135
250
mA
Power dissipation P
Batt
U
Batt
= 12 V;
I = 0 mA at pin
ECU_SBRAM;
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
3
W
1)
The XETK-S30.0 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 XETK-S30.0 will accept permanent power supply voltage dips (for addi-
tional details of 3 V low voltage operation, see ISO standard 16750).
