ON Semiconductor CAT1021WI-42-GT3 Overview

The CAT1021WI-42-GT3 is a high-performance, precision supervisory circuit from ON Semiconductor designed to monitor power supplies in digital systems. It ensures that the system voltage remains within specified thresholds, providing a reliable solution for system reset and voltage monitoring functions.

Key Features

• Precision Voltage Monitoring: This device is equipped with a precise bandgap reference to monitor 4.2V power supplies, making it ideal for 5V systems that require a tighter voltage supervision window.
• Programmable Watchdog Timer: The CAT1021WI-42-GT3 includes a programmable watchdog timer that can be set to the desired timeout period, ensuring that the system remains responsive and operational.
• Low Power Consumption: Designed for power-sensitive applications, it consumes minimal power, which is crucial for battery-operated devices.
• Manual Reset Input: It features a manual reset input that allows for a system reset to be triggered manually, providing an additional layer of system control.
• Active-Low Reset Output: The reset output is active low, which is compatible with most microcontrollers and digital ICs, ensuring seamless integration into existing designs.

Applications

• Microprocessor and microcontroller systems
• Portable/Battery-powered equipment
• Intelligent instruments
• Industrial control systems
• Embedded systems
• Computers and networking systems

Product Specifications

The CAT1021WI-42-GT3 operates over a wide temperature range, making it suitable for various industrial and commercial applications. It is offered in a small, 8-pin SOIC package, which is ideal for space-constrained applications. The device's built-in hysteresis improves noise immunity and ensures stable operation under fluctuating voltage conditions.

Quality and Reliability

ON Semiconductor is known for its commitment to quality, and the CAT1021WI-42-GT3 is manufactured to the highest standards. It is designed to meet the rigorous demands of modern electronic systems, ensuring long-term reliability and performance.

With its combination of features, the CAT1021WI-42-GT3 is a versatile and dependable choice for system designers looking to enhance the safety and reliability of their power supply monitoring systems.