TL7702AIDRG4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Supervisor
• Characteristics: Precision monitoring, low power consumption, wide operating voltage range
• Package: SOIC-8
• Essence: Monitors the voltage level of a system and provides a reset signal when the voltage falls below a certain threshold.
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 1.2V to 18V
• Threshold Voltage Options: 2.5V, 3V, 3.3V, 5V
• Reset Timeout Period: Adjustable from 1ms to 10s
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 30µA (typical)

Pin Configuration

The TL7702AIDRG4 has a total of 8 pins arranged as follows:

```

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| | --| VCC GND |-- Pin 1: Ground (GND) --| RESET OUT |-- Pin 2: Reset Output --| THRESHOLD |-- Pin 3: Threshold Voltage Selection --| RESET |-- Pin 4: External Reset Input --| MR |-- Pin 5: Manual Reset Input --| VCC |-- Pin 6: Supply Voltage (VCC) --| GND |-- Pin 7: Ground (GND) |___________| ```

Functional Features

• Precision monitoring of supply voltage
• Provides a reset signal when voltage falls below the set threshold
• Adjustable reset timeout period for flexibility
• Low quiescent current for power efficiency
• Wide operating voltage range for versatility

Advantages and Disadvantages

Advantages: - Accurate voltage monitoring - Adjustable reset timeout period - Low power consumption - Wide operating voltage range

Disadvantages: - Limited threshold voltage options - Only available in SOIC-8 package

Working Principles

The TL7702AIDRG4 is a voltage supervisor IC that continuously monitors the supply voltage of a system. It compares the voltage level with a preset threshold value, which can be selected using the THRESHOLD pin. When the voltage falls below the threshold, the RESET OUT pin is activated, providing a reset signal to the system.

The reset timeout period can be adjusted using external components connected to the RESET pin. This allows flexibility in defining the duration for which the reset signal remains active after the voltage returns above the threshold.

The IC operates with low quiescent current, making it suitable for battery-powered applications. It can handle a wide range of supply voltages, enhancing its versatility.

Detailed Application Field Plans

The TL7702AIDRG4 is commonly used in various electronic systems where reliable voltage monitoring and reset functionality are required. Some typical application fields include:

1. Microcontrollers and Microprocessors: Ensuring proper initialization and safe operation by providing a reset signal when the supply voltage drops below a certain level.
2. Industrial Control Systems: Monitoring critical voltage levels in industrial equipment and triggering appropriate actions or alarms in case of voltage fluctuations.
3. Automotive Electronics: Protecting sensitive electronic components from voltage variations and ensuring proper system startup.
4. Power Management Systems: Safeguarding power supplies and preventing damage to downstream components by monitoring voltage levels.

Detailed and Complete Alternative Models

1. TL7700AID - Similar voltage supervisor IC with fixed threshold voltage options (2.5V, 3V, 3.3V, 5V).
2. TL7705AID - Voltage supervisor IC with adjustable threshold voltage and additional features like watchdog timer and power-on reset delay.
3. TL7712AID - Dual voltage supervisor IC with independent threshold voltage selection for each channel.

These alternative models offer similar functionality to the TL7702AIDRG4, providing options for different voltage thresholds or additional features based on specific application requirements.

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