TC642BEOA

Product Overview

Category

TC642BEOA belongs to the category of integrated circuits (ICs).

Use

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

Characteristics

• Voltage monitoring: TC642BEOA monitors the voltage level and provides a reset signal when the voltage falls below a certain threshold.
• Reset function: It ensures that the device resets properly after a power interruption or voltage drop.
• Low power consumption: The IC operates with low power consumption, making it suitable for battery-powered devices.
• Small package size: TC642BEOA comes in a compact package, allowing for space-efficient integration into electronic circuits.

Package

The TC642BEOA is available in a small outline integrated circuit (SOIC) package.

Essence

The essence of TC642BEOA lies in its ability to monitor voltage levels and provide reliable reset functionality, ensuring proper operation of electronic devices.

Packaging/Quantity

The IC is typically packaged in reels or tubes, with quantities varying based on customer requirements.

Specifications

• Supply voltage range: 2.7V to 5.5V
• Operating temperature range: -40°C to +85°C
• Output type: Active-low push-pull
• Threshold voltage options: 4.63V, 4.38V, 4.00V, 3.08V, 2.93V, 2.63V, 2.38V, 1.75V

Detailed Pin Configuration

The TC642BEOA IC has the following pin configuration:

1. VDD: Power supply input
2. GND: Ground reference
3. MR: Manual reset input
4. RESET: Active-low reset output
5. TH: Threshold voltage selection input
6. VCC: Voltage monitor input

Functional Features

• Voltage monitoring: TC642BEOA continuously monitors the voltage level at the VCC pin.
• Threshold selection: The TH pin allows users to select the desired threshold voltage for monitoring.
• Manual reset: The MR pin provides a manual reset option, allowing users to initiate a reset manually.
• Active-low reset output: The RESET pin provides an active-low reset signal when the monitored voltage falls below the selected threshold.

Advantages and Disadvantages

Advantages

• Reliable voltage monitoring and reset functionality
• Low power consumption
• Compact package size
• Wide range of threshold voltage options

Disadvantages

• Limited to voltage monitoring and reset functions only
• Requires external components for complete circuit integration

Working Principles

TC642BEOA operates by comparing the voltage at the VCC pin with the selected threshold voltage. When the VCC voltage drops below the threshold, the RESET pin is activated, providing a reset signal. The manual reset option allows users to override the automatic reset function.

Detailed Application Field Plans

TC642BEOA finds applications in various electronic devices where voltage monitoring and reliable reset functionality are crucial. Some potential application fields include:

1. Microcontrollers: Ensuring proper reset and initialization of microcontroller-based systems.
2. Power supply units: Monitoring voltage levels and initiating resets during power fluctuations or interruptions.
3. Battery-powered devices: Optimizing battery life by resetting devices when the battery voltage drops below a certain threshold.
4. Industrial control systems: Providing reliable reset functionality for critical industrial control systems.

Detailed and Complete Alternative Models

1. MAX823: Similar voltage monitoring and reset IC with adjustable threshold voltage options.
2. LTC2910: Integrated supervisor IC with programmable threshold voltages and additional features like watchdog timer.
3. ADM6315: Microprocessor supervisory circuit with adjustable reset thresholds and manual reset input.

These alternative models offer similar functionality to TC642BEOA and can be considered based on specific application requirements.

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