6-Pin µP Reset Circuit Monitors Supplies

Board space is said to be reduced in 2.5V, 3V, 3.3V and 5V systems while reliability is increased and the number of external components and adjustments decreased with the MAX6342-MAX6345 microprocessor supervisory circuits. The devices are designed to assert a reset output whenever the supply voltage has dropped below a preset value, and they include a power-fail comparator that can be used for a power-fail warning, for low-battery detection, or for monitoring another power supply. The devices are reported as saving 50% of the power and 70% of the board space needed by traditional solutions.