ON Semiconductor CAT1021WI-30-GT3 Supervisory Circuit

The CAT1021WI-30-GT3 is a highly reliable supervisory circuit designed and manufactured by ON Semiconductor, a leader in energy-efficient innovations. This component is an essential device for microprocessor systems, providing monitoring and control of the power supply to ensure stable operation. It is particularly suitable for applications that require precise voltage monitoring to safeguard sensitive electronic systems.

The CAT1021WI-30-GT3 supervisory circuit features a precision voltage monitor with a factory-programmed threshold of 3.0V, ensuring accurate detection of under-voltage conditions. This threshold level is ideal for systems operating at 3.3V power supplies, providing a margin for safety without being too close to the nominal operating voltage. When the monitored voltage falls below this threshold, the reset output is triggered, which can be used to reset a microprocessor or other digital systems, thus preventing malfunction or data corruption.

Additionally, this device includes a manual push-button reset input, offering users the ability to perform a system reset without cycling the power. This feature is incredibly useful for system maintenance, troubleshooting, or when a controlled system restart is necessary. The reset output remains operational even when VCC is down to 1.0V, ensuring functionality during low power conditions.

The CAT1021WI-30-GT3 comes in a compact SOT-23 package, which is highly advantageous for space-constrained applications. It also supports an industrial temperature range from -40°C to +85°C, making it suitable for a wide variety of environments and applications, including automotive systems, portable devices, and embedded systems.

ON Semiconductor's commitment to quality ensures that the CAT1021WI-30-GT3 supervisory circuit is a reliable choice for system designers looking to enhance the safety and robustness of their electronic products. With its precise monitoring capabilities and user-friendly features, the CAT1021WI-30-GT3 is an excellent addition to any power-sensitive electronic system.