Product Overview: MAX809S-2.93 Voltage Supervisor IC

The MAX809S-2.93 is a precision microprocessor (µP) supervisory circuit designed by Maxim Integrated to monitor power supplies in digital systems. It provides a significant level of system reliability and accuracy required in critical electronic applications, ensuring that the µP and its associated hardware are reset properly during power-up, power-down, and brown-out conditions.

Key Features

• Voltage Monitoring: The MAX809S-2.93 maintains a watchful eye on the system voltage, asserting a reset signal whenever the VCC supply voltage falls below the preset threshold of 2.93V. This threshold level is ideal for 3.3V-powered systems that require a tight power monitoring window to maintain proper operation.
• Reset Output: Upon detection of an out-of-tolerance power supply, the device asserts a reset signal for at least 140ms after VCC has risen above the reset threshold. This reset signal is active-low and can directly interface with the reset pin of most microprocessors.
• Low Power Consumption: The MAX809S-2.93 is optimized for low power consumption, drawing minimal current from the VCC supply. This makes it a suitable choice for battery-powered and portable devices where power efficiency is paramount.
• Compact SOT-23 Packaging: Housed in a small SOT-23 package, the MAX809S-2.93 is designed for space-constrained applications. Its small footprint allows for integration into compact PCB layouts without sacrificing performance.
• Temperature Range: The device operates over a wide temperature range, making it versatile for use in various environments and applications.

Applications

The MAX809S-2.93 is versatile and can be used in a variety of applications where accurate system voltage monitoring is required. Some common applications include:

• Computers and Servers
• Embedded Systems
• Battery-Powered Equipment
• Industrial Controllers
• Portable Electronics

With its precision voltage monitoring capabilities and low power consumption, the MAX809S-2.93 from Maxim Integrated is an excellent choice for designers who require a reliable and compact solution to safeguard their digital systems.