ETAS
Technical Data
XETK-S21.0B
-
User
Guide
38
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%]
Standby
current
2)
I
STBY
U
Batt
= 12
V;
ECU
off;
no load from ECU;
T = 20
°C
35
40
mA
Operating current I
Batt
U
Batt
= 12
V;
I
=
0
mA at pin
ECU_SBRAM;
T = 20
°C
135 200 mA
Operating current I
Batt
U
Batt
= 12
V;
I
=
600
mA at pin
ECU_SBRAM;
T = 20
°C
240 300 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
=
600
mA at pin
ECU_SBRAM;
T = 20
°C
2.88
W
1) The XETK-S21.0 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.
2) if I
=
0
mA at pin VDDSBRAM
NOTE
The XETK-S21.0 will accept permanent power supply voltage dips (for addi
-
tional details of 3
V low voltage operation, see ISO standard 16750).
