CAT1163WI-25-G

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Supervisor

Characteristics: - Monitors the power supply voltage and generates a reset signal when the voltage falls below a predetermined threshold - Provides protection against power supply glitches, brownouts, and power supply faults - Ensures reliable operation of microcontrollers, digital logic circuits, and other sensitive electronic devices

Package: SOT-23-5

Essence: The CAT1163WI-25-G is a voltage supervisor IC that ensures stable and reliable operation of electronic devices by monitoring the power supply voltage.

Packaging/Quantity: The CAT1163WI-25-G is available in a SOT-23-5 package. It is typically sold in reels containing 3000 units.

Specifications

• Supply Voltage Range: 1.2V to 5.5V
• Reset Threshold Voltage: 2.5V
• Reset Timeout Period: 140ms (typical)
• Quiescent Current: 6µA (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The CAT1163WI-25-G has the following pin configuration:

```

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| | --|1 |-- VCC --|2 |-- GND --|3 |-- RESET --|4 |-- MR --|5 |-- GND |____| ```

Functional Features

• Monitors the power supply voltage continuously
• Generates a reset signal when the voltage falls below the preset threshold
• Reset signal remains active for the duration of the reset timeout period
• Manual reset input allows external reset control
• Low quiescent current consumption for power-efficient operation

Advantages and Disadvantages

Advantages: - Provides reliable protection against power supply glitches and faults - Low quiescent current ensures minimal power consumption - Compact SOT-23-5 package allows for space-saving integration

Disadvantages: - Fixed reset threshold voltage may not be suitable for all applications - Limited operating temperature range (-40°C to +85°C)

Working Principles

The CAT1163WI-25-G operates by continuously monitoring the power supply voltage. When the voltage falls below the preset threshold of 2.5V, it generates a reset signal. This reset signal remains active for the duration of the reset timeout period (140ms). The IC also features a manual reset input that allows external control over the reset function.

Detailed Application Field Plans

The CAT1163WI-25-G is widely used in various electronic devices and systems where stable operation is critical. Some common application fields include:

1. Microcontroller Systems: Ensures reliable operation of microcontrollers by providing voltage supervision and reset generation.
2. Digital Logic Circuits: Protects digital logic circuits from power supply glitches and brownouts, preventing data corruption or loss.
3. Industrial Control Systems: Monitors power supply voltage in industrial control systems to prevent malfunctions and ensure uninterrupted operation.
4. Automotive Electronics: Used in automotive electronics to provide voltage supervision and reset functionality, enhancing system reliability.

Detailed and Complete Alternative Models

1. CAT1161LI-30-G: Similar voltage supervisor IC with a higher reset threshold voltage of 3.0V.
2. CAT1162WI-20-G: Voltage supervisor IC with a lower reset threshold voltage of 2.0V.
3. CAT1164WI-27-G: Voltage supervisor IC with a higher reset threshold voltage of 2.7V and longer reset timeout period of 200ms.

These alternative models offer different reset threshold voltages and timeout periods, allowing flexibility in selecting the most suitable voltage supervisor for specific applications.

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