TC1271ALCVCTTR

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Supervisor
• Characteristics: Low Power Consumption, Wide Operating Voltage Range
• Package: SOT-23-5
• Essence: Monolithic CMOS Voltage Supervisor
• Packaging/Quantity: Tape and Reel / 3000 pieces per reel

Specifications

• Supply Voltage Range: 1.2V to 5.5V
• Reset Threshold Voltage Options: 2.63V, 3.08V, 4.38V
• Reset Timeout Period Options: 140ms, 450ms, 1.8s, 3.1s
• Quiescent Current: 1.5µA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The TC1271ALCVCTTR has a total of 5 pins: 1. VDD: Supply Voltage Input 2. GND: Ground 3. RESET: Active-Low Reset Output 4. MR: Manual Reset Input 5. VBAT: Battery Voltage Monitor Input

Functional Features

• Monitors the supply voltage and provides a reset signal when it falls below a specified threshold.
• Offers manual reset capability through the MR pin.
• Provides a stable reset output during power-up and power-down conditions.
• Low quiescent current makes it suitable for battery-powered applications.
• Wide operating voltage range allows compatibility with various systems.

Advantages

• Low power consumption extends battery life in portable devices.
• Wide operating voltage range ensures compatibility with different power supply configurations.
• Small package size (SOT-23-5) enables space-saving designs.
• Accurate reset threshold options cater to specific system requirements.
• Manual reset input offers flexibility in system control.

Disadvantages

• Limited reset timeout period options may not suit all application scenarios.
• Lack of built-in hysteresis may result in potential noise-related issues.

Working Principles

The TC1271ALCVCTTR operates by continuously monitoring the supply voltage through the VBAT pin. When the voltage falls below the programmed threshold, the RESET pin is asserted low, indicating a reset condition. The reset output remains active until the supply voltage rises above the threshold and stabilizes. The MR pin allows for manual reset control, overriding the automatic reset functionality.

Detailed Application Field Plans

The TC1271ALCVCTTR finds applications in various fields, including: 1. Battery-Powered Devices: Provides reliable power-on reset to microcontrollers, ensuring proper initialization. 2. Industrial Control Systems: Monitors supply voltage to prevent erratic behavior or data corruption during power fluctuations. 3. Automotive Electronics: Ensures safe and controlled startup of critical systems, such as engine control units and airbag modules. 4. Home Automation: Facilitates stable operation of smart home devices by resetting them in case of power interruptions. 5. Medical Equipment: Guarantees proper functioning of medical devices by initiating a reset when the supply voltage deviates from the specified range.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the TC1271ALCVCTTR include: 1. MAX809: Low-Power Microprocessor Reset Circuits 2. ADM803: Precision Voltage Monitor with Manual Reset 3. MCP100: Voltage Supervisor with Adjustable Reset Timeout

These alternatives provide comparable features and can be considered based on specific application requirements.

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