ON Semiconductor MAX803SQ293T1G Product Overview

The MAX803SQ293T1G is a precision microprocessor (µP) supervisory circuit designed by ON Semiconductor to monitor power supplies in digital systems. It provides a significant function in ensuring system reliability by managing power-on reset and watchdog functions. This device is particularly suitable for battery-powered applications because of its low power consumption and compact SOT-323 package.

Key Features

• Voltage Monitoring: The MAX803SQ293T1G is adept at supervising system voltages, with a preset threshold voltage of 2.93V, making it ideal for 3.3V systems. This feature helps prevent system errors and data corruption due to low voltage conditions.
• Reset Output: The device offers an active-low reset output which remains asserted for a minimum of 140ms after VCC has risen above the reset threshold. This provides adequate time for the system to stabilize upon power-up before the processor is allowed to run.
• Low Power Consumption: With a typical supply current of just 20µA, it is highly efficient for use in portable equipment where power conservation is critical.
• Temperature Range: The MAX803SQ293T1G operates over the extended temperature range of -40°C to +85°C, ensuring reliable performance in a variety of harsh environments.
• Manual Reset: A manual reset input allows the user to trigger a reset pulse with an external switch or logic signal, providing an additional layer of system control.

Applications

The versatility of the MAX803SQ293T1G makes it an excellent choice for a wide range of applications, including:

• Portable/Battery-Powered Devices
• Embedded Systems
• Microcontroller Systems
• Intelligent Instruments
• Automotive Systems

Quality and Reliability

ON Semiconductor is known for its commitment to quality, and the MAX803SQ293T1G is no exception. It is designed to meet the stringent requirements of the automotive industry and is manufactured in ISO/TS16949 certified facilities. Customers can trust the MAX803SQ293T1G for their critical applications where precision and reliability are paramount.

In summary, the MAX803SQ293T1G from ON Semiconductor is a robust, low-power supervisory circuit that is essential for maintaining the integrity of power supplies and system logic in a variety of electronic applications.