11 Power Supply Recommendations

These devices are designed to operate from a V_CC input supply voltage range between 4.5 V and 5.5 V. Some devices have an output level shifting supply input, V_IO, designed for a range between 3 V and 5.5 V. Both supply inputs must be well regulated. A bulk capacitance, typically 4.7 μF, should be placed near the CAN transceiver's main V_CC supply output, and in addition a bypass capacitor, typically 0.1 μF, should be placed as close to the device V_CC and V_IO supply terminals. This helps to reduce supply voltage ripple present on the outputs of the switched-mode power supplies and also helps to compensate for the resistance and inductance of the PCB power planes and traces.