Precision monitoring of 3 V, 3.3 V, and 5 V supply voltages
Four output configurations:
Push-pull, active-high (STM1812,1817)
Push-pull, active-low (STM1810,1815)
Open-drain, active-low (STM1811,1816)
Open-drain, active-low with push-button detect (STM1813,1818)
Reset pulse width - 100 ms (min.)
Low supply current - 4 μA (typ.)
Guaranteed assertion down to VCC= 1.0 V (0 °C to 105 °C)
Factory-trimmed reset thresholds of 2.55 V, 2.88 V, 3.06 V, 4.37 V, and 4.62 V (typ.)
Power supply transient immunity
Push-button/manual reset detect (STM1813/1818)
Operating temperature: –40 °C to 105 °C
± 2.5% reset threshold accuracy:(–40 °C to 105 °C)
Available in the SOT23-3 package
Fully compatible with DS181x and MXD181x products.

Microprocessor Supply Voltage Supervisory & Reset Circuits

Power supply voltage monitoring and supervisory circuits for use in desktop, laptop and notebook computers, test and measurement instruments, portable battery-powered equipment and multiple-output power supplies.

Supply Voltage Detector
Supply Voltage Supervisor
Power Supply Supervisor
Microprocessor Supervisory
Microprocessor Voltage Supervisor
Microcontroller Reset Circuit