CAT809JTBI-GT3

Product Overview

Category

CAT809JTBI-GT3 belongs to the category of electronic components.

Use

This product is commonly used in electronic circuits for voltage monitoring and reset functions.

Characteristics

• Voltage monitoring: CAT809JTBI-GT3 is designed to monitor the supply voltage and provide a reset signal when it falls below a certain threshold.
• Reset function: It ensures that the microcontroller or other digital circuitry starts in a known state after power-up or voltage drop.
• Low power consumption: The device operates with low quiescent current, making it suitable for battery-powered applications.
• Wide operating voltage range: CAT809JTBI-GT3 can operate within a wide voltage range, typically from 1.6V to 5.5V.
• Small package size: This product comes in a compact SOT-23 package, allowing for space-efficient integration into circuit designs.

Package and Quantity

CAT809JTBI-GT3 is available in a SOT-23 package. Each package contains one unit of the product.

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Reset Threshold Voltage Options: 2.63V, 2.93V, 3.08V, 4.38V (typical)
• Quiescent Current: 1µA (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The CAT809JTBI-GT3 has three pins:

1. VDD: Power supply input pin.
2. GND: Ground reference pin.
3. RESET: Output pin for the reset signal.

Functional Features

• Voltage Monitoring: The CAT809JTBI-GT3 continuously monitors the supply voltage and compares it to the preset threshold voltage.
• Reset Signal Generation: When the supply voltage drops below the threshold, the device generates a reset signal on the RESET pin.
• Manual Reset Input: The product also provides an additional input pin (MR) for manual reset functionality.

Advantages and Disadvantages

Advantages

• Reliable Voltage Monitoring: CAT809JTBI-GT3 ensures accurate monitoring of the supply voltage, preventing erratic behavior of digital circuits.
• Low Power Consumption: The device operates with minimal power consumption, making it suitable for energy-efficient applications.
• Small Package Size: Its compact size allows for easy integration into space-constrained designs.

Disadvantages

• Limited Threshold Options: The available threshold voltage options may not cover all specific application requirements.
• Lack of Advanced Features: CAT809JTBI-GT3 does not offer advanced features like adjustable delay or hysteresis settings.

Working Principles

CAT809JTBI-GT3 utilizes a voltage comparator to continuously monitor the supply voltage. When the voltage falls below the preset threshold, the comparator triggers the generation of a reset signal. This signal remains active until the supply voltage rises above the threshold again.

Application Field Plans

CAT809JTBI-GT3 finds applications in various electronic systems where reliable voltage monitoring and reset functionality are crucial. Some potential application fields include:

1. Microcontroller-based Systems: It ensures proper initialization and reliable operation of microcontrollers upon power-up or voltage drop.
2. Battery-powered Devices: CAT809JTBI-GT3 helps prevent unexpected shutdowns and data loss by providing a reset signal when the battery voltage drops below a certain level.
3. Industrial Control Systems: It can be used in industrial control systems to monitor power supply integrity and initiate system resets if necessary.

Alternative Models

For users seeking alternative options, the following models provide similar functionality to CAT809JTBI-GT3:

1. CAT810MTBI-GT3
2. CAT811JTBI-GT3
3. CAT812MTBI-GT3

These models offer comparable voltage monitoring and reset features, but may differ in package size or additional functionalities.

In conclusion, CAT809JTBI-GT3 is a reliable electronic component used for voltage monitoring and reset functions. Its low power consumption, small package size, and wide operating voltage range make it suitable for various applications. However, users should consider the limited threshold options and absence of advanced features when selecting this product.