22.6.3.7 Hysteresis

A hysteresis on the trigger threshold of a BOD will reduce the sensitivity to ripples on the monitored voltage: instead of switching RESET at each crossing of VBOD, the thresholds for switching RESET on and off are separated (VBOD- and VBOD+, respectively).

Figure 22-2. BOD Hysteresis Principle

Hysteresis OFF:

Hysteresis ON:

Enabling the BODVDD hysteresis by writing the Hysteresis bit in the BODVDD register (BODVDD.HYST) to '1' will add hysteresis to the BODVDD threshold level.

The hysteresis functionality can be used in both Continuous and Sampling Mode (See the Electrical Characteristics sections for more information on the hysteresis values).