DS1231-20N+ (MAXIM INTEGRATED PRODUCTS)

The DS1231-20N+ is a power monitor chip in 8 pin DIP package. This power monitor detects out of tolerance power supply conditions and warns a processor based system of impending power failure. It uses a precise temperature compensated reference circuit which provides an orderly shutdown and an automatic restart of a processor based system. A signal warning of an impending power failure is generated well before regulated DC voltages go out of specification by monitoring high voltage inputs to the power supply regulators. If line isolation is required a UL approved opto-isolator can be directly interfaced to the IC.