TC647BEUA

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Supervisor
• Characteristics: High accuracy, low power consumption
• Package: 8-pin SOIC (Small Outline Integrated Circuit)
• Essence: Monitors voltage levels and provides reset signals
• Packaging/Quantity: Tape and reel packaging, 2500 units per reel

Specifications

• Supply Voltage Range: 1.6V to 6.0V
• Reset Threshold Voltage: Adjustable from 1.2V to 5.0V
• Reset Timeout Period: Adjustable from 1ms to 640ms
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The TC647BEUA has the following pin configuration:

1. VCC: Supply voltage input
2. GND: Ground reference
3. MR: Manual reset input
4. RESET: Reset output
5. TH: Threshold voltage adjustment
6. TO: Timeout period adjustment
7. CT: Capacitor connection for timeout period adjustment
8. NC: No connection

Functional Features

• Monitors supply voltage and generates a reset signal when it falls below the threshold voltage.
• Provides an adjustable reset timeout period to ensure proper system initialization.
• Includes a manual reset input for immediate system reset.
• Low quiescent current consumption for energy-efficient operation.
• Wide supply voltage range allows compatibility with various systems.

Advantages and Disadvantages

Advantages: - High accuracy in monitoring voltage levels. - Low power consumption for energy efficiency. - Adjustable threshold voltage and timeout period for flexibility. - Manual reset option for immediate system recovery.

Disadvantages: - Limited number of pins may restrict additional functionalities. - Requires external capacitors for timeout period adjustment.

Working Principles

The TC647BEUA operates by continuously monitoring the supply voltage. When the voltage falls below the threshold set by the TH pin, the IC generates a reset signal on the RESET pin. The timeout period, set by the TO pin and an external capacitor connected to the CT pin, ensures that the reset signal remains active for a specific duration to allow proper system initialization.

Detailed Application Field Plans

The TC647BEUA is commonly used in various electronic systems where reliable voltage monitoring and system reset functionality are required. Some application fields include:

1. Microcontroller Systems: Ensures proper initialization of microcontrollers by monitoring the power supply voltage and generating a reset signal when necessary.
2. Industrial Control Systems: Provides voltage supervision in industrial control systems to prevent malfunctions caused by unstable power supply conditions.
3. Automotive Electronics: Monitors battery voltage in automotive applications to ensure proper functioning of critical systems.
4. Power Management Systems: Used in power management circuits to supervise voltage levels and initiate corrective actions if necessary.

Detailed and Complete Alternative Models

1. MAX823: Voltage supervisor IC with adjustable threshold voltage and reset timeout period. Available in various package options.
2. LTC2910: Precision voltage monitor with programmable threshold voltage and adjustable reset timeout. Offers additional features like watchdog timer and power-on reset delay.
3. ADM6315: Low-power voltage monitor with fixed threshold voltage and adjustable reset timeout. Suitable for battery-powered applications.

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