CAT809TTBI-GT3

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Supervisor
• Characteristics: Low Power, Precision Monitoring, Reset Output
• Package: SOT-23-3
• Essence: Monolithic CMOS IC
• Packaging/Quantity: Tape and Reel, 3000 pieces per reel

Specifications

• Supply Voltage Range: 1.0V to 5.5V
• Reset Threshold Voltage Options: 2.93V, 3.08V, 3.33V, 4.38V
• Reset Timeout Period Options: 140ms, 560ms, 1120ms, 2240ms
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The CAT809TTBI-GT3 is a three-pin device with the following pin configuration:

1. VDD: Supply Voltage Input
2. GND: Ground
3. RESET: Reset Output

Functional Features

• Monitors the supply voltage and asserts the reset output when it falls below the specified threshold.
• Provides a precision monitoring solution for microcontrollers, DSPs, and other digital systems.
• Low power consumption makes it suitable for battery-powered applications.
• Offers a reset timeout period to ensure proper system initialization.

Advantages and Disadvantages

Advantages

• Wide supply voltage range allows compatibility with various systems.
• Multiple reset threshold voltage and timeout period options provide flexibility.
• Small package size enables space-saving designs.
• Low power consumption extends battery life in portable devices.

Disadvantages

• Limited number of reset threshold voltage and timeout period options.
• Not suitable for high-temperature applications above 85°C.

Working Principles

The CAT809TTBI-GT3 operates by continuously monitoring the supply voltage. When the voltage drops below the programmed threshold, the reset output is asserted, indicating a power failure or an unstable condition. The reset output remains active until the supply voltage rises above the threshold and the reset timeout period elapses.

Detailed Application Field Plans

The CAT809TTBI-GT3 finds applications in various fields, including:

1. Embedded Systems: Provides reliable power-on reset functionality for microcontrollers and other embedded systems.
2. Communication Devices: Ensures proper initialization of communication modules during power-up.
3. Industrial Control Systems: Monitors power supply stability in control systems to prevent erroneous operation.
4. Automotive Electronics: Facilitates safe and reliable operation of automotive electronic systems.

Detailed and Complete Alternative Models

• CAT809TTBI-GT2: Similar specifications but with different reset threshold voltage options.
• CAT809TTBI-GT4: Similar specifications but with additional reset timeout period options.
• CAT810TTBI-GT3: Voltage supervisor with manual reset input feature.

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