TC647VUATR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Supervisor
• Characteristics:
  • Monitors voltage levels in electronic systems
  • Provides reset signals when voltage falls below or rises above specified thresholds
  • Ensures proper system operation and prevents data corruption
• Package: SOT-23-5
• Essence: Voltage monitoring and supervision
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Supply Voltage Range: 1.6V to 6.0V
• Threshold Voltage Options:
  • 2.63V (TC647VUATR-2.63)
  • 3.08V (TC647VUATR-3.08)
  • 4.38V (TC647VUATR-4.38)
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 10µA (typical)

Detailed Pin Configuration

The TC647VUATR is a 5-pin device with the following pin configuration:

1. GND (Ground)
2. RESET (Reset Output)
3. VCC (Supply Voltage)
4. TH (Threshold Input)
5. MR (Manual Reset Input)

Functional Features

• Monitors supply voltage and generates a reset signal when it falls below or rises above the specified threshold.
• The threshold voltage can be selected using the TH pin.
• Provides a manual reset option through the MR pin.
• Low quiescent current ensures minimal power consumption.
• Small form factor package allows for space-efficient integration into electronic systems.

Advantages and Disadvantages

Advantages: - Reliable voltage monitoring and supervision. - Prevents data corruption and ensures proper system operation. - Wide supply voltage range allows for versatile applications. - Manual reset option provides flexibility in system control. - Low quiescent current minimizes power consumption.

Disadvantages: - Limited threshold voltage options may not suit all applications. - SOT-23-5 package may require additional space on the PCB.

Working Principles

The TC647VUATR operates by continuously monitoring the supply voltage using an internal voltage reference. When the voltage falls below or rises above the specified threshold, the IC generates a reset signal on the RESET pin. This signal can be used to initiate system resets or trigger specific actions based on the application requirements. The threshold voltage can be set using the TH pin, allowing customization for different voltage levels. Additionally, the MR pin provides a manual reset option, enabling manual control over the reset function.

Detailed Application Field Plans

The TC647VUATR is widely used in various electronic systems where voltage monitoring and supervision are critical. Some of the common application fields include:

1. Power Supply Units (PSUs): Ensures stable voltage output and protects sensitive components from voltage fluctuations.
2. Microcontrollers and Microprocessors: Prevents data corruption and ensures reliable operation during power supply variations.
3. Industrial Control Systems: Monitors voltage levels in control circuits to maintain system integrity and prevent malfunctions.
4. Automotive Electronics: Provides voltage supervision in automotive systems to ensure safe and reliable operation.
5. Battery-Powered Devices: Protects batteries from over-discharge by generating a reset signal when the voltage drops below a certain level.

Detailed and Complete Alternative Models

1. TC648VUATR: Similar to TC647VUATR but with adjustable threshold voltage.
2. TC649VUATR: Voltage supervisor with additional features like watchdog timer and power-on reset.
3. TC646VUATR: Voltage supervisor with a wider supply voltage range and higher threshold voltage options.
4. TC645VUATR: Compact voltage supervisor with lower quiescent current and reduced pin count.

These alternative models offer different specifications and features, allowing users to choose the most suitable option based on their specific requirements.

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