ETK-V1.1 - User’s Guide
37
ETAS
Technical Data
7.4
Configuration
7.5
Serial ETK Interface
7.6
Power Supply
7.7
Microcontroller Bus Interface
Item
Characteristics
Configuration
Project-specific configuration for
- memory configurations
stored in EEPROM
Update
Logic devices updated through soft-
ware
Item
Characteristics
Transmission speed
100 Mbit/s
Cable length
max. 30 m / 100 ft
Serial Interface
DC decoupling
Parameter
Symbol Condition
Min Typ
Max Unit
Permanent power
supply
(car battery)
U
Batt
Vehicle usage
1)
4.3
12
18
V
[all values ±0%]
Standby Current
I
STBY
U
Batt
= 12 V;
ECU off; T = 20 °C
0.1
10
30
mA
Operating Current I
Batt
U
Batt
= 12 V;
ECU on; T = 20 °C
30
70
100
mA
1) The ETK-V1.1 implements reverse voltage protection in the same range and
may be used only with central load dump protection.
Parameter
Symbol Condition
Min Typ
Max Unit
ECU Bus Supply
Voltage -
Power Detect
U
VDDE2/3
ECU on
1.98
V
ECU off
1.87 V
ECU Bus Supply
Voltage -
Level Detect
U
VDDE2/3
Level Detect: 2.5 V
2.9
V
Level Detect: 3.3 V
3.0
V
ECU Bus Supply
Voltage -
Sense Current
I
VDDE2/3
U
VDDE2/3
= 2.5 V/
3.3 V
0.1
mA
