ZHCS603D November 2011 – April 2022 SN65HVDA100-Q1
PRODUCTION DATA
INH is used to control an external voltage regulator that has an inhibit or enable input. When the device is in normal operating mode, the inhibit switch is enabled and the external voltage regulator is activated. When device is in sleep mode, the inhibit switch is disabled, which turns off the system voltage regulator. A wake-up event transitions the device to standby by mode and re-enables INH which, in turn, restarts the system by turning on the voltage regulators. INH can also drive an external transistor connected to an MCU interrupt input.