18.1.7 Inhibit Output Pin (LIN_INH)

This pin is used to control an external voltage regulator or to switch the LIN Commander pull-up resistor on/off in case the device is used in a Commander node. The inhibit pin provides an internal switch toward the LIN_V_DD pin, which is protected by temperature monitoring. If the device is in Normal or Fail-Safe mode, the inhibit high-side switch is turned on. When the device is in Sleep mode, the inhibit switch is turned off, thus disabling the voltage regulator or other connected external devices.

A wake-up event on the LIN bus or at the LIN_WKIN pin switches the LIN_INH pin to the VS level. After a system power-up (VS rises from zero), the LIN_INH pin switches to the VS level automatically.