ZHCSJK5B January 2018 – November 2019 TCAN4550-Q1
An internal LDO provides power for the integrated CAN transceiver and the VCCOUT pin for a total available current of 125 mA. The amount of current that can be sourced is dependent upon the CAN transceiver requirements during normal operation. When a bus fault takes place that requires all the current from the LDO, the device is not able to source current to external components. During sleep mode this regulator is disabled and no current is provided. Once in the other active modes the regulator is enabled for normal operation. This pin requires a 10 µF external capacitor as close to the pin as possible. See Power Supply Recommendations for more information.