TLC7701IDRG4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Supervisor
• Characteristics: Low Power, Precision Monitoring, Reset Generation
• Package: SOIC-8
• Essence: Monitors voltage levels and generates reset signals for microcontrollers and other digital systems.
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 2.7V to 18V
• Threshold Voltage Options: 2.32V, 2.62V, 2.93V, 3.08V, 3.63V, 4.38V, 4.63V, 4.88V
• Reset Timeout Period: Adjustable from 1ms to 640ms
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 10µA (typical)

Pin Configuration

The TLC7701IDRG4 has a standard SOIC-8 pin configuration:

```

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| | --| RESET | --| GND | --| VDD | --| THRESHOLD | --| TIMEOUT | --| MR | --| OUT | |___________| ```

Functional Features

• Monitors the supply voltage and asserts the RESET signal when it falls below the threshold voltage.
• Provides an adjustable timeout period to ensure proper system reset.
• Low quiescent current consumption makes it suitable for battery-powered applications.
• Precision monitoring ensures accurate detection of voltage levels.

Advantages

• Wide supply voltage range allows compatibility with various systems.
• Adjustable threshold voltage options provide flexibility in voltage monitoring.
• Low power consumption extends battery life in portable devices.
• Small package size (SOIC-8) enables space-efficient designs.
• Precision monitoring ensures reliable system operation.

Disadvantages

• Limited number of threshold voltage options may not cover all voltage requirements.
• Adjustable timeout period may require additional configuration and testing.
• Not suitable for high-voltage applications above 18V.

Working Principles

The TLC7701IDRG4 operates by continuously monitoring the supply voltage using an internal voltage reference. When the voltage falls below the programmed threshold, the RESET signal is asserted, indicating a power failure or low voltage condition. The timeout period can be adjusted to ensure that the RESET signal remains active long enough for the system to properly reset. The device consumes low quiescent current, minimizing power consumption during normal operation.

Application Field Plans

The TLC7701IDRG4 is commonly used in various applications where voltage monitoring and reset generation are critical. Some typical application fields include:

1. Microcontroller Systems: Ensures proper reset and reliable operation of microcontrollers in embedded systems.
2. Industrial Control Systems: Monitors power supply voltages in industrial automation and control systems.
3. Automotive Electronics: Provides voltage supervision for automotive electronic systems, ensuring safe and reliable operation.
4. Battery-Powered Devices: Protects battery-powered devices from undervoltage conditions, preventing data loss or system instability.
5. Communication Equipment: Monitors power supply voltages in communication devices such as routers, switches, and modems.

Alternative Models

• TL7700IP: Similar functionality with a different pin configuration (PDIP-8).
• MAX823: Voltage supervisor IC with adjustable threshold voltage and timeout period.
• ADM708: Precision voltage monitor with adjustable timeout period and watchdog timer.

These alternative models offer similar features and can be considered based on specific design requirements.

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