Bosch Motorsport DDU 7, Manual, Page: 10 / 158

Inputs and outputs
10
5.1.4 Display brightness switch
Pin 37 of the life connector is used as a dimmer switch for the display. The internal pull-up resistor
is automatically activated. Different dim settings are selected by a connecting the pin to SENSGND
with different resistor values over a 6 position switch. The individual brightness settings for LEDs
and the display are defined by RaceCon.
Dim Level Resistor Value
Level 1 43,9 Ohm
Level 2 142 Ohm
Level 3 264 Ohm
Level 4 409 Ohm
Level 5 609 Ohm
Level 6 846 Ohm
5.2 Output channels
5.2.1 Sensor power supply
The DDU 7 has 2 types of sensor power supply: 5 V and 10 V regulated voltage. The regulated 5 V
and 10 V outputs can deliver 350 mA each. They are short circuit protected to battery voltage and
GND.