The MAX6501MAX6504 low-cost, fully integrated temperature switches assert a logic signal when their die temperature crosses a factory-programmed threshold. Operating from a +2.7V to +5.5V supply, these devices feature two on-chip, temperature-dependent voltage references and a comparator. They are available with factory-trimmed temperature trip thresholds from -45C to +125C in 10C increments, and are accurate to 0.5C (typ) or 6C (max). These devices require no external components and typically consume 30A supply current. Hysteresis is pin-selectable at +2C or +10C.