TLC7725QPWRG4

Product Overview

• Category: Integrated Circuit
• Use: Voltage Supervisor
• Characteristics: Low Power, Precision, Reset Generation
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: Monolithic CMOS Device
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 1.2V to 6V
• Operating Temperature Range: -40°C to +125°C
• Reset Threshold Voltage Options: 2.32V, 2.93V, 3.08V, 4.38V, 4.63V, 4.88V
• Reset Timeout Period Options: 20ms, 140ms, 280ms, 560ms, 1120ms, 2240ms
• Quiescent Current: 10µA (Typical)

Detailed Pin Configuration

The TLC7725QPWRG4 has a total of 8 pins:

1. VDD: Supply Voltage Input
2. GND: Ground
3. RESET: Active-Low Reset Output
4. MR: Manual Reset Input
5. TH: Threshold Voltage Selection Input
6. TO: Timeout Period Selection Input
7. CT: Capacitor Connection Terminal
8. OUT: Open-Drain Reset Output

Functional Features

• Precision voltage monitoring and reset generation
• Wide supply voltage range for compatibility with various systems
• Adjustable threshold voltage and timeout period options for flexibility
• Low quiescent current for power efficiency
• Open-drain reset output for easy interfacing with other devices
• Manual reset input for external control

Advantages and Disadvantages

Advantages: - High precision in voltage monitoring - Wide operating temperature range - Low power consumption - Flexible threshold voltage and timeout period options

Disadvantages: - Limited number of threshold voltage and timeout period options - Requires an external capacitor for operation

Working Principles

The TLC7725QPWRG4 is a voltage supervisor integrated circuit that monitors the supply voltage of a system. It compares the supply voltage with a user-defined threshold voltage and generates a reset signal when the supply voltage falls below the threshold. The reset signal remains active until the supply voltage rises above the threshold or a timeout period elapses.

The device operates by continuously measuring the supply voltage through the TH pin. The selected threshold voltage determines the level at which the reset signal is triggered. The TO pin allows the user to set the desired timeout period, after which the reset signal is automatically released.

Detailed Application Field Plans

The TLC7725QPWRG4 is commonly used in various applications where reliable voltage monitoring and reset generation are critical. Some typical application fields include:

1. Microcontrollers and Microprocessors: Ensuring proper system initialization and preventing data corruption during power-up or brownout conditions.
2. Industrial Control Systems: Monitoring power supply integrity in control panels and providing safe shutdown mechanisms in case of voltage fluctuations.
3. Automotive Electronics: Protecting sensitive electronic components from voltage transients and ensuring proper system operation.
4. Battery-Powered Devices: Preventing excessive discharge and extending battery life by initiating a reset when the battery voltage drops below a certain level.
5. Communication Systems: Maintaining stable operation by resetting the system in case of power supply disturbances.

Detailed and Complete Alternative Models

1. TL7705ACP: Similar voltage supervisor IC with fixed threshold voltage options and different package options.
2. MAX823: Voltage monitor and reset generator with adjustable threshold voltage and timeout period options.
3. ADM6315: Precision voltage monitor with adjustable threshold voltage and integrated watchdog timer.
4. MCP101: Low-power voltage supervisor with fixed threshold voltage options and various package options.

These alternative models offer similar functionality to the TLC7725QPWRG4 and can be considered based on specific application requirements.

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