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CM2115
Sensor supply
The CM2115 has one pin, labeled
SENSOR_SUPPLY
, dedicated to providing power
to external sensor.
Warning!
Do not drive more than 100 mA of current through the
SENSOR_SUPPLY
pin. Doing so will cause the pin to protect itself by
dropping the voltage, which will result in a lack of power to the sensors,
causing unknown vehicle responses.
8.1. Sensor Power Capabilities
SENSOR_SUPPLY
is a 5V linear power supply that is capable of continuously
providing up to 100mA to external sensors.
Note:
The voltage provided to the CM2115 must be 6.5 V or greater to ensure
the sensor supply can provide 5 V.
Depending on system voltage,
SENSOR_SUPPLY
is capable of delivering different
amounts of current to the sensors, as detailed in the following table:
Maximum Sensor Current at Various Voltages
Input Voltage
Maximum Sensor Current
6.5–14 VDC
100 mA
14–24 VDC
50 mA
24–32 VDC
30 mA
8. Sensor supply
