TLC7725QDR

Product Overview

Category

TLC7725QDR belongs to the category of integrated circuits (ICs).

Use

The TLC7725QDR is primarily used as a voltage supervisor and reset generator.

Characteristics

• Voltage supervisor with adjustable threshold voltage
• Low supply current consumption
• Wide operating voltage range
• Small package size
• High accuracy and stability

Package

The TLC7725QDR is available in a small outline package (SOIC) with 8 pins.

Essence

The essence of TLC7725QDR lies in its ability to monitor and control voltage levels, ensuring proper functioning of electronic systems.

Packaging/Quantity

The TLC7725QDR is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Supply Voltage Range: 2.7V to 18V
• Adjustable Threshold Voltage Range: 1.2V to VDD - 1.2V
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 25µA (typical)
• Output Current: 20mA (maximum)

Detailed Pin Configuration

The TLC7725QDR has the following pin configuration:

1. GND (Ground)
2. RESET (Reset Output)
3. THRESH (Threshold Input)
4. VDD (Supply Voltage)
5. SENSE (Voltage Sense Input)
6. NC (No Connection)
7. NC (No Connection)
8. GND (Ground)

Functional Features

• Adjustable threshold voltage allows customization for different applications.
• Monitors the supply voltage and generates a reset signal when it falls below the threshold.
• Provides a stable reset output during power-up and power-down sequences.
• Low quiescent current ensures minimal power consumption.
• Wide operating voltage range enables compatibility with various systems.

Advantages and Disadvantages

Advantages

• Flexible threshold voltage adjustment for versatile applications.
• Reliable voltage monitoring and reset generation.
• Low power consumption.
• Compact package size for space-constrained designs.
• Wide operating voltage range for compatibility.

Disadvantages

• Limited output current capacity (20mA maximum).
• Noisy supply voltage may affect accuracy.

Working Principles

The TLC7725QDR operates by continuously monitoring the supply voltage through the SENSE pin. The threshold voltage, set using the THRESH pin, determines the voltage level at which a reset signal is generated on the RESET pin. When the supply voltage falls below the threshold, the reset output becomes active, indicating a power failure or an abnormal condition. The device remains in this state until the supply voltage rises above the threshold again.

Detailed Application Field Plans

The TLC7725QDR finds applications in various fields, including:

1. Power supply monitoring in industrial control systems.
2. Reset generation in microcontroller-based systems.
3. Voltage supervision in automotive electronics.
4. Battery management systems.
5. Home automation and security systems.

Detailed and Complete Alternative Models

Some alternative models to the TLC7725QDR include:

1. TL7705ACP - Fixed threshold voltage supervisor IC.
2. MAX809 - Microprocessor reset circuits with adjustable threshold voltage.
3. ADM6315 - Precision voltage monitor with watchdog timer.
4. MCP101 - Voltage supervisor with manual reset input.

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

Word count: 440 words