ADM1811 Datasheet

• Reliable Low Cost Voltage Monitor with Reset Output
• Suitable for Monitoring 2.5 V, 3 V, 3.3 V, and 5 V Power Supply Voltages
• Reset Threshold Levels: 4.62 V, 4.35 V, 3.06 V, 2.88 V, 2.55 V, 2.31 V, and 2.18 V (Typ)
• Open-Drain Output Choices (ADM1811)
• Initialize Microprocessor Systems with Added Safety
• Available in 3-Lead SOT-23 and SC70 Packages

• Microprocessor systems
• Computers
• Controllers
• Intelligent instruments
• Automotive systems

The ADM1811 range of voltage monitoring circuits can be used in any application where an electronic system needs to be reset when a voltage increases above or below a predetermined value.

Because of the “reset delay time” incorporated into the ADM1811, these devices can provide a safe startup for electronic systems. Before a system initializes, the power supply must stabilize. Using the ADM1811 ensures that there are typically 150 ms for the power supply to stabilize before the system is reset and safe system initialization begins.

The ADM1811 of microprocessor reset circuits are available in low cost, space-saving SOT-23 packages.