ETAS
Technical Data
ETK-S20.1
-
User Guide
39
7.8
Power Supply
Parameter
Symbol
Condition
Min Typ Max Unit
Permanent power
supply
(car battery)
U
Batt
Vehicle usage
1)
5
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
10
28
35
mA
Operating current I
Batt
U
Batt
= 12
V;
no load from ECU;
T = 20
°C
50
115 235 mA
Power dissipation P
Batt
U
Batt
= 12
V;
I
=
0
mA at pin
ECU_SBRAM;
T = 20
°C
1.38
W
Power dissipation P
Batt
U
Batt
= 12
V;
I
=
500
mA at pin
VDDSTBY;
I
=
80
mA at pin
VDDPSTBY;
T = 20
°C
2.78
W
1): The ETK-S20.1 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 ETK-S20.1 will accept permanent power supply voltage dips (for addi
-
tional details of 3
V low voltage operation, see ISO standard 16750).
