The ON Semiconductor ASM809REURF-T is a microprocessor (µP) supervisory circuit designed to monitor the power supplies in digital systems. It provides a significant level of protection against low-voltage conditions and is an essential component for ensuring the reliable operation of a system.

Key Features

• Precision Voltage Monitoring: The device is engineered to precisely monitor 3V, 3.3V, and 5V supply voltages.
• Reset Signal: It generates a reset signal for the host processor when it detects that the supply voltage has dropped below the factory-programmed threshold. The reset signal remains active for a minimum of 140ms after the supply voltage rises above the reset threshold, ensuring the system has adequate time to stabilize.
• Low Power Consumption: This supervisor is optimized for low power consumption, making it suitable for battery-operated applications.
• High Accuracy: With a reset threshold accuracy of ±1.5%, the ASM809REURF-T ensures reliable operation without false triggering.
• Compact Package: The device comes in a compact SOT-23 package, which is ideal for space-constrained applications.

Applications

The ASM809REURF-T is versatile and can be used in a wide range of applications, including:

• Portable/Battery-Powered Equipment
• Microprocessor/Microcontroller Systems
• Computers and Computer Peripherals
• Industrial Equipment
• Data Storage Systems
• Automotive Systems

Technical Specifications

In conclusion, the ASM809REURF-T from ON Semiconductor is a robust and reliable solution for voltage supervision in electronic systems, offering precision, low power consumption, and a small form factor, making it an excellent choice for a variety of applications.