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ADM811 Microprocessors Supervisory Circuit in 4-Lead SOT-143, Logic Low RESET Bar Output

The ADM811/ADM812 are reliable voltage monitoring devices suitable for use in most voltage monitoring applications. The ADM811/ADM812 are designed to monitor six different voltages, each allowing a 5% or 10% degradation of standard PSU voltages before a reset occurs. These voltages have been selected for the effective monitoring of 2.5 V, 3 V, 3.3 V, and 5 V supply voltage levels.

Included in this circuit is a debounced manual reset input. Reset can be activated using an electrical switch (or an input from another digital device) or by a degradation of the supply voltage. The manual reset function is very useful, especially if the circuit in which the ADM811/ADM812 are operating enters into a state that can only be detected by the user. Allowing the user to reset a system manually can reduce the damage or danger that could otherwise be caused by an out-of-control or locked system.

Applications

Data Sheets

Application Notes

Order Information

Reference Materials

• Product Selection Guide：ADI Complementary Parts Guide - Supervisory Devices and DSP Processors
• Product Selection Guide：Supervisory Devices Complementary Parts Guide for Altera FPGAs
• Product Selection Guide：Supervisory Devices Complementary Parts Guide for Xilinx FPGAs
• Solutions Bulletins & Brochures：Voltage Monitoring Products Applications Guide