TC647BEUATR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Supervisor
• Characteristics: Low Power, Precision Monitoring, Adjustable Thresholds
• Package: SOT-23-5
• Essence: Monitors and controls voltage levels in electronic systems
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Supply Voltage Range: 1.6V to 6.0V
• Threshold Voltage Options: 2.5V, 3.0V, 3.3V, 5.0V
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 1.5µA (typical)
• Reset Timeout Period: 140ms (typical)

Detailed Pin Configuration

The TC647BEUATR has a total of 5 pins:

1. VDD: Supply Voltage Input
2. GND: Ground Connection
3. RESET: Active-Low Reset Output
4. THRESHOLD: Threshold Voltage Selection Input
5. MR: Manual Reset Input

Functional Features

• Monitors the supply voltage and asserts the RESET pin low when it falls below the selected threshold voltage.
• Provides an active-low reset signal to the system until the supply voltage rises above the threshold voltage.
• Offers adjustable threshold voltage options to suit different applications.
• Includes a manual reset input for immediate system reset.
• Low quiescent current consumption ensures minimal power usage.

Advantages and Disadvantages

Advantages

• Precise monitoring of voltage levels enhances system reliability.
• Adjustable threshold voltage allows customization for specific requirements.
• Low power consumption prolongs battery life in portable devices.
• Small package size (SOT-23-5) enables space-efficient designs.
• Manual reset input provides flexibility in system control.

Disadvantages

• Limited to voltage monitoring and reset functionality, not suitable for complex power management tasks.
• SOT-23-5 package may require additional measures for heat dissipation in high-power applications.

Working Principles

The TC647BEUATR operates by continuously monitoring the supply voltage using an internal voltage reference. When the voltage falls below the selected threshold level, the IC asserts the RESET pin low, indicating a power failure or abnormal condition. The RESET signal remains active until the supply voltage rises above the threshold voltage or a manual reset is triggered.

Detailed Application Field Plans

The TC647BEUATR finds application in various electronic systems where precise voltage monitoring is critical. Some potential fields of use include:

1. Battery-Powered Devices: Ensures safe operation by monitoring battery voltage and initiating appropriate actions when it drops below a certain level.
2. Industrial Control Systems: Protects sensitive equipment from damage due to voltage fluctuations or power failures.
3. Automotive Electronics: Monitors vehicle battery voltage to prevent unexpected shutdowns and maintain system integrity.
4. Medical Devices: Provides reliable voltage supervision to ensure patient safety and proper functioning of medical equipment.

Detailed and Complete Alternative Models

1. MAX823: Voltage Supervisor with Adjustable Thresholds, SOT-23 Package
2. LTC2910: Precision Voltage Monitor with Programmable Thresholds, DFN Package
3. ADM6315: Microprocessor Reset Circuit with Fixed Threshold, SOT-23 Package
4. TPS3839: Ultra-Low Power Voltage Supervisor with Manual Reset, SC70 Package

(Note: This list is not exhaustive and serves as a starting point for exploring alternative models.)

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