TC647BEOA

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Supervisor
• Characteristics:
  • Monitors voltage levels and provides reset signals
  • Low power consumption
  • Wide operating voltage range
• Package: SOP-8 (Small Outline Package)
• Essence: Ensures reliable operation by monitoring voltage levels and resetting the system when necessary.
• Packaging/Quantity: Available in reels of 2500 units.

Specifications

• Supply Voltage Range: 2.7V to 5.5V
• Reset Threshold Voltage Options:
  • 2.93V (TC647BEOA-2.93)
  • 3.08V (TC647BEOA-3.08)
  • 4.63V (TC647BEOA-4.63)
• Reset Timeout Period Options:
  • 140ms (TC647BEOA-140)
  • 280ms (TC647BEOA-280)
  • 560ms (TC647BEOA-560)

Detailed Pin Configuration

The TC647BEOA is an SOP-8 package with the following pin configuration:

1. VCC: Supply Voltage Input
2. GND: Ground
3. MR: Manual Reset Input
4. RESET: Reset Output
5. TH: Threshold Voltage Selection
6. TO: Timeout Period Selection
7. CT: Capacitor Connection for Timeout Period
8. NC: No Connection

Functional Features

• Monitors supply voltage and generates a reset signal when it falls below the threshold voltage.
• Provides manual reset capability through the MR pin.
• Selectable threshold voltage and timeout period options allow customization for different applications.
• Low power consumption ensures minimal impact on overall system energy efficiency.
• Wide operating voltage range enables compatibility with various power supply configurations.

Advantages and Disadvantages

Advantages: - Reliable voltage monitoring and reset functionality - Customizable threshold voltage and timeout period options - Low power consumption - Wide operating voltage range

Disadvantages: - Limited pin configuration options due to SOP-8 package size - Not suitable for applications requiring higher current handling capabilities

Working Principles

The TC647BEOA operates by continuously monitoring the supply voltage. When the voltage falls below the selected threshold level, the IC generates a reset signal on the RESET pin. This signal can be used to reset the system or trigger specific actions.

The manual reset input (MR) allows the user to manually initiate a reset, overriding the automatic voltage monitoring. This feature is useful during system testing or troubleshooting.

The selectable threshold voltage and timeout period options provide flexibility in adapting the TC647BEOA to different application requirements. The threshold voltage determines the minimum voltage level at which a reset signal is generated, while the timeout period defines the duration for which the reset signal remains active after the voltage returns to normal.

Detailed Application Field Plans

The TC647BEOA is commonly used in various electronic systems where reliable voltage monitoring and reset functionality are crucial. Some typical application fields include:

1. Microcontroller Systems: Ensures proper operation of microcontrollers by resetting them when the supply voltage drops below a certain level.
2. Industrial Control Systems: Monitors power supply voltages in industrial control systems to prevent malfunctions and ensure uninterrupted operation.
3. Automotive Electronics: Provides voltage supervision in automotive electronics, such as engine control units and infotainment systems, to enhance reliability and safety.
4. Battery-Powered Devices: Protects battery-powered devices from damage caused by undervoltage conditions, extending their lifespan.
5. Home Automation: Integrates into home automation systems to monitor and reset connected devices in case of voltage fluctuations.

Detailed and Complete Alternative Models

1. TC648BEOA: Similar to TC647BEOA, but with additional power-on reset functionality.
2. TC646BEOA: Voltage supervisor IC with a smaller package size (SOT-23) for space-constrained applications.
3. TC649BEOA: Enhanced version of TC647BEOA with extended operating temperature range (-40°C to 125°C).

These alternative models offer similar voltage monitoring and reset capabilities, but may have additional features or different package options to suit specific application requirements.

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