This is a patent technology of Maxim allows our products to drive infinite inductive load safety.
SafeDemag works in conjunction with the fast demag circuitry and allows the MAX14912 and MAX14913 to safely turn off loads with unlimited inductance. Under normal turn-off the high-side MOSFET works in linear mode to dissipate the inductor energy using the fast demag feature. If the energy in the inductor, and hence the demagnetization current is too high, the high-side MOSFET begins to overheat. At this point, an on-chip temperature sensor alerts the control logic to turn off the high-side MOSET and turn on the low-side MOSFET roviding a low voltage (and hence low power) alternative path for the demagnetization current, allowing the high-side MOSFET to cool and return to safe operating limits.