CAT812JTBI-GT3

Product Overview

Category

CAT812JTBI-GT3 belongs to the category of integrated circuits (ICs).

Use

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

Characteristics

• Voltage monitoring: CAT812JTBI-GT3 is designed to monitor the voltage level of a power supply and provide a reset signal when the voltage falls below a certain threshold.
• Reset function: It ensures that the microcontroller or other digital circuitry is properly reset when the power supply voltage drops below the specified level.
• Package: This IC is available in a small SOT-23 package, which makes it suitable for space-constrained applications.
• Essence: The essence of CAT812JTBI-GT3 lies in its ability to ensure reliable operation of electronic devices by monitoring and resetting the power supply voltage.

Packaging/Quantity

The CAT812JTBI-GT3 IC is typically packaged in reels containing 3000 units. Other packaging options may be available upon request.

Specifications

• Supply voltage range: 1.6V to 5.5V
• Threshold voltage options: 2.5V, 3.0V, 3.3V, 4.38V, and 4.63V
• Operating temperature range: -40°C to +85°C
• Quiescent current: 10µA (typical)
• Reset timeout period: 140ms (typical)

Detailed Pin Configuration

The CAT812JTBI-GT3 IC has three pins:

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

Functional Features

• Undervoltage detection: The CAT812JTBI-GT3 continuously monitors the supply voltage and detects when it falls below the specified threshold.
• Reset signal generation: When the voltage drops below the threshold, the IC generates a reset signal to ensure proper functioning of the connected digital circuitry.
• Adjustable threshold voltage: The CAT812JTBI-GT3 offers multiple threshold voltage options, allowing flexibility in different applications.
• Low quiescent current: With a typical quiescent current of only 10µA, this IC minimizes power consumption.

Advantages and Disadvantages

Advantages

• Reliable voltage monitoring and reset functionality.
• Small package size suitable for space-constrained applications.
• Wide supply voltage range allows compatibility with various systems.
• Adjustable threshold voltage options provide flexibility.
• Low quiescent current minimizes power consumption.

Disadvantages

• Limited reset timeout period may not be suitable for all applications.
• Lack of additional features such as hysteresis adjustment.

Working Principles

The CAT812JTBI-GT3 operates by continuously monitoring the supply voltage using an internal voltage reference. When the voltage falls below the set threshold, the IC triggers the reset signal, which forces the connected digital circuitry to restart. This ensures that the system operates reliably even under low voltage conditions.

Detailed Application Field Plans

The CAT812JTBI-GT3 is widely used in various electronic devices and systems where voltage monitoring and reset functions are critical. Some common application fields include:

1. Microcontrollers: Ensuring proper reset and reliable operation of microcontroller-based systems.
2. Embedded systems: Providing voltage monitoring and reset capabilities in embedded systems.
3. Power management: Monitoring power supply voltage in power management circuits.
4. Industrial automation: Maintaining system integrity by resetting critical components during voltage fluctuations.
5. Automotive electronics: Ensuring safe and reliable operation of automotive electronic systems.

Detailed and Complete Alternative Models

1. CAT811JTBI-GT3: Similar to CAT812JTBI-GT3, but with a fixed threshold voltage of 2.93V.
2. CAT813JTBI-GT3: Offers additional hysteresis adjustment feature for improved noise immunity.
3. CAT810JTBI-GT3: Provides a higher reset timeout period of 280ms for applications requiring longer delays.

These alternative models offer similar functionality to CAT812JTBI-GT3 but may have slight variations in features and specifications.

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