| 摘要 |
PROBLEM TO BE SOLVED: To provide an on-vehicle communication device capable of restraining an increase in a dark current in a sleep state, even when arranging a plurality of transceivers.SOLUTION: An on-vehicle communication device includes a plurality of switch elements 12a, 12b and 12c capable of individually switching power source supply and cutoff of the power source supply on the respective CAN transceivers 11a, 11b and 11c, a power source supply management part 14 for controlling the plurality of switch elements 12a, 12b and 12c, and an MPU 15 for determining the necessity of the power source supply to the respective CAN transceivers 11a, 11b and 11c. The power source supply management part 14 controls the switch elements 12a, 12b and 12c so as to cut off the power source supply only on the transceiver for which the power source supply is determined to be unnecessary by the MPU 15 among the respective CAN transceivers 11a, 11b and 11c. |
