CAT1022YI-25-GT3

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Simple Reset/Power-On Reset
Number of Voltages Monitored:	1
Output:	Open Drain or Open Collector
Reset:	Active Low
Reset Timeout:	130 ms Minimum
Voltage - Threshold:	2.55V
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Surface Mount
Package / Case:	8-TSSOP (0.173", 4.40mm Width)
Supplier Device Package:	8-TSSOP
Base Part Number:	CAT1022

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Introduction

CAT1022YI-25-GT3 is a supervisor device featuring two supply monitor pins, a programmable reset generator, and an integrated temperature compensated voltage reference. It is classified as a Programmable Logic Integrated Circuit (PLIC), commonly known as a Supervisory Circuit (SUP). This circuit is typically used for embedded applications that require a low power, high accuracy and dependable supervisor circuit.

Application Field of CAT1022YI-25-GT3

The CAT1022YI-25-GT3 is designed to perform the function of monitoring system power supply levels (such as voltage, current and temperature) and providing a reset when the voltage drops below a predefined threshold. This supervisor is most commonly used to provide safety and reliability in embedded systems, such as industrial automation and telecommunication systems. It is most suitable for applications where precise power supply and reset functions are needed and it can provide reliable power supply monitoring for microcontrollers, where accurate threshold detection is important. In addition, this supervisor can also be used in applications like medical, automotive, and consumer electronic devices, where system safety, reliability and accuracy are essential criteria.

Working Principle of CAT1022YI-25-GT3

The CAT1022YI-25-GT3 is designed to monitor power supply voltages and provide a reset signal when the voltage drops below the threshold. The supervisor can be programmed with the external voltage reference or the internal 2.5V reference to detect any undershoot or overshoot of power supply voltage levels.When the power supply voltage drops below the threshold, the CAT1022YI-25-GT3 will provide a reset signal. The reset can be configured as a delayed reset, active-low reset, active-high reset, or a combination of different reset signals. The reset is also temperature compensated, which means the reset threshold does not change significantly with temperature. As a result, the supervisor provides a reliable reset signal for accurate activation of the system reset function.The CAT1022YI-25-GT3 also features two supply monitor pins, which can be used to monitor the power supply voltage levels of external devices. The pins provide a low-impedance connection to the system power supply and can detect any undershoot or overshoot of power supply levels. The pins can also be used to detect temperature changes of the external device, in order to prevent the system shutdown due to power supply or device temperature fluctuations.

Conclusion

The CAT1022YI-25-GT3 is a programmable logic integrated circuit designed for safety and reliability in embedded systems. It is mainly used in applications where precise power supply and reset functions are needed, such as industrial automation and telecommunication systems. This supervisor features two supply monitor pins, a programmable reset generator and an integrated temperature compensated voltage reference. It provides reliable power supply monitoring and accurate threshold detection for a variety of systems and applications.

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