Power output specifications

System power out limits (when powered with 12 VDC)

Total system current is fused at 5 A with replaceable automotive mini-blade fuse

12 V and SW12 power output terminals

12V, SW12-1, and SW12-2: Provide 12 VDC power ±10% when the power input supply voltage is ≥ 13.7 VDC. When the supply voltage is < 13.7 V the output voltage will be at least the supply voltage minus 1.7 volts.

SW12-1 and SW12-2 can be independently set to a regulated 12 V under program control.

SW12 current limit: 1100 mA

12 VDC outputs limited to 3300 mA, which is shared by all 12 V outputs including 12V, SW12-1, SW12-2 and CS I/O pin 8.

5 V fixed output

5V: One regulated 5 V output. Supply is shared between the 5V terminal and CS I/O pin 1.

  • Voltage Output: Regulated 5 V output (±5%)
  • Current Limit: 250 mA

C as power output

Operating at the current limit is OK if voltage fluctuation can be tolerated. Drive capacity is determined by the logic level of the VDC supply and the output resistance (Ro) of the C terminal. It is expressed as: Vo = 5 V – (Ro • Io), where Vo is the drive limit, and Io is the current required by the external device. For example: at the maximum current limit of 10 mA on C1 the voltage level would reduce from 5 V to 3.5 V.

  • C Terminals:

    • Output Resistance (Ro): 150 Ω
    • 5 V Logic Level Drive Capacity: 10 mA @ 3.5 VDC; Vo = 5 V - (150 Ω •Io)
    • 3.3 V Logic Level Drive Capacity: 10 mA @ 1.8 VDC; Vo = 3.3 V - (150 Ω •Io)

CS I/O pin 1

5 V Current Limit: 250 mA

CS I/O pin 8

12 V Current Limit: 1100 mA