Installation and Manual Documentation
Document date:
CC-DA/ESR1
CR5CPCCF
18 Feb 2020
Page:
25
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3.2.2.
Vehicle Power Supply
3.2.2.1.
Constraints and Definitions
The car battery supplies power to the Sensor (terminal 15/30)
All power supply parameters are measured at the ECU vehicle connector supply pins (VBATT to
GND) unless different specified.
All power supply parameters are guaranteed and designed over ambient temperature Ta=
Ta_min to Ta_max unless different specified. (-40°C to 85°C, see Chapter "Operating
Environment")
All power supply parameters are guaranteed and designed over lifetime unless different specified.
All power supply values are continuous values.
Definition COM Interfaces ON:
COM interfaces are working according to the respective communication standard.
3.2.2.2.
Power Supply System 12V
Symbol
Parameter
Note or Test Condition
min
typ
max
Unit
Umin
min. voltage without
damageing the ECU
- reverse polarity
- t <= 60s
- Ri < 30mOhm
- 14,28
- 14,00
V
Symbol
Parameter
Note or Test Condition
min
typ
max
Unit
Umax_res_up
max. reset voltage Power
Up
-
-
6,5
V
Symbol
Parameter
Note or Test Condition
min
typ
max
Unit
Umin_res_dn
min. reset voltage Power
Down
-
-
4,5
V
Symbol
Parameter
Note or Test Condition
min
typ
max
Unit
Umin_com
min. communication voltage
- COM Interfaces ON
- Object list preservation
- min value Power Down
5,5
-
-
V
Symbol
Parameter
Note or Test Condition
min
typ
max
Unit
Umin_op
min. operating voltage
- COM Interfaces ON
- RF Module ON
-
-
7,0
V
Symbol
Parameter
Note or Test Condition
min
typ
max
Unit
Umax_op
max. operating voltage
- COM Interfaces ON
- RF Module ON
16
-
-
V
Symbol
Parameter
Note or Test Condition
min
typ
max
Unit
Umax_op
max. operating voltage
- COM Interfaces ON
- RF Module ON
16
-
-
V
