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40 | Technical Data
6.6
Power Supply
Parameter
Permanent
power supply
(car battery)
Cranking voltage U
Standby current
Operating
current
Power dissipa-
tion
Power dissipa-
tion
Fuse in the ETK Ubatt supply line.
Only required if the power supply or ECU is not pro-
tected accordingly.
1)
The BR_XETK-S1.0 implements reverse voltage protection in the same range
and may be used only with central load dump protection.
24 V vehicles require U
12 V vehicles don't require special disturbing pulse reductions.
NOTE
The BR_XETK-S1.0 will accept permanent power supply voltage dips (for addi-
tional details of 3 V low voltage operation, see ISO standard 16750).
ETAS BR_XETK-S1.0 | User Guide
Symbol
Condition
U
Vehicle usage
Batt
< 3 seconds
Batt
I
U
= 12 V; ECU off;
STBY
Batt
no load from ECU;
T = 20 °C
I
U
= 12 V;
Batt
Batt
no load from ECU;
T = 20 °C
P
U
= 12 V;
Batt
Batt
I = 0 mA at pin ECU_S-
BRAM;
T = 20 °C
P
U
= 12 V;
Batt
Batt
I = 500 mA at pin
VDDSTBY;
I = 80 mA at pin VDDP-
STBY;
T = 20 °C
disturbing pulse reduction to 12 V vehicle system.
Batt
Min
Typ
1)
4.3
12
[all values ±0%]
3
15
28
70
135
1.62
3
MINI, 2 A 58 V DC
(Littelfuse
0997002.WXN)
Max Unit
36
V
V
40
mA
250
mA
W
W
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