TC1270ATVCTTR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Supervisor
• Characteristics: Low Power Consumption, Precision Monitoring, Small Package Size
• Package: SOT-23-5
• Essence: The TC1270ATVCTTR is a voltage supervisor IC designed to monitor the power supply voltage of electronic systems and provide reset signals when the voltage falls below a certain threshold.
• Packaging/Quantity: Available in tape and reel packaging with 3000 units per reel.

Specifications

• Supply Voltage Range: 1.2V to 5.5V
• Reset Threshold Voltage Options: 2.93V, 3.08V, 4.38V, or Adjustable
• Reset Timeout Period: 140ms (typical)
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 1.5µA (typical)

Detailed Pin Configuration

The TC1270ATVCTTR features a compact SOT-23-5 package with the following pin configuration:

1. GND (Ground)
2. RESET (Reset Output)
3. VCC (Supply Voltage)
4. MR (Manual Reset Input)
5. N/C (No Connection)

Functional Features

• Voltage Monitoring: Monitors the supply voltage and generates a reset signal when it falls below the specified threshold.
• Precision Monitoring: Provides accurate monitoring with low voltage hysteresis for reliable system operation.
• Manual Reset Input: Allows for manual reset control by asserting a low-level signal on the MR pin.
• Power-On Reset: Generates a reset signal upon power-up to ensure proper initialization of the system.
• Low Power Consumption: Consumes minimal power during operation, making it suitable for battery-powered applications.

Advantages and Disadvantages

Advantages: - Compact package size enables space-saving designs. - Wide supply voltage range allows for compatibility with various systems. - Precision monitoring ensures reliable system operation. - Low power consumption prolongs battery life in portable devices.

Disadvantages: - Limited reset threshold voltage options may not suit all applications. - Lack of adjustable reset timeout period may restrict flexibility in certain scenarios.

Working Principles

The TC1270ATVCTTR operates by continuously monitoring the supply voltage connected to the VCC pin. When the voltage falls below the specified threshold, the IC asserts a reset signal on the RESET pin. This signal remains active until the supply voltage rises above the threshold or a manual reset is triggered through the MR pin. The IC also generates a power-on reset signal upon initial power-up to ensure proper system initialization.

Detailed Application Field Plans

The TC1270ATVCTTR finds application in various electronic systems where reliable voltage monitoring and reset functionality are crucial. Some potential application fields include:

1. Microcontroller Systems: Ensures proper system initialization and prevents erratic behavior during power fluctuations.
2. Industrial Control Systems: Provides reliable supervision of power supply voltages to prevent damage to critical components.
3. Automotive Electronics: Monitors battery voltage to prevent undervoltage conditions that could affect vehicle performance.
4. Portable Devices: Protects sensitive electronics from voltage drops, ensuring stable operation and preventing data loss.

Detailed and Complete Alternative Models

1. TC1270AVCCTR: Similar to TC1270ATVCTTR but available in a SOT-23-3 package.
2. TC1270ANVCTR: Offers adjustable reset threshold voltage option in a SOT-23-5 package.
3. TC1270AMVCTR: Provides a wider operating temperature range (-55°C to +125°C) in a SOT-23-5 package.

These alternative models offer similar voltage monitoring and reset functionality, catering to different package preferences and specific application requirements.

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