TPS3700QDSERQ1 - English Editing Encyclopedia Entry

Product Overview

Category

The TPS3700QDSERQ1 belongs to the category of integrated circuits (ICs) and specifically falls under the family of voltage supervisors.

Use

This product is primarily used for monitoring and supervising voltage levels in electronic systems. It ensures that the voltage remains within specified limits, providing protection against overvoltage or undervoltage conditions.

Characteristics

• Voltage monitoring: The TPS3700QDSERQ1 can monitor voltages ranging from 1.8V to 5.5V.
• Adjustable threshold: The device allows users to set the desired voltage threshold for triggering an alert or action.
• Low power consumption: It operates with low quiescent current, making it suitable for battery-powered applications.
• Wide temperature range: The TPS3700QDSERQ1 can operate reliably across a wide temperature range, typically from -40°C to +125°C.

Package and Quantity

The TPS3700QDSERQ1 is available in a small SOT-23 package. Each package contains one unit of the IC.

Specifications

• Supply voltage range: 1.8V to 5.5V
• Threshold voltage accuracy: ±1%
• Quiescent current: 1.6µA (typical)
• Operating temperature range: -40°C to +125°C
• Output type: Active-low, open-drain
• Power-on reset delay time: 20ms (typical)

Pin Configuration

The TPS3700QDSERQ1 features a 5-pin SOT-23 package with the following pin configuration:

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| | | GND | |___________| | | | VDD | |___________| | | | RESET | |___________| | | | GND/NC | |___________| | | | OUT | |___________| ```

Functional Features

• Voltage monitoring: The TPS3700QDSERQ1 continuously monitors the input voltage and compares it to the user-defined threshold.
• Power-on reset: It generates a reset signal when the supply voltage rises above the threshold, ensuring a controlled startup of the system.
• Manual reset: The device includes a manual reset input that allows users to force a reset condition externally.
• Open-drain output: The active-low, open-drain output can be connected to other devices for signaling or control purposes.

Advantages and Disadvantages

Advantages

• Wide operating voltage range enables compatibility with various systems.
• Adjustable threshold provides flexibility in voltage monitoring.
• Low power consumption prolongs battery life in portable applications.
• Small package size allows for space-efficient designs.

Disadvantages

• Limited to voltage monitoring and does not provide additional supervisory functions.
• Requires external components for proper operation.
• May not be suitable for high-voltage applications.

Working Principles

The TPS3700QDSERQ1 operates by comparing the input voltage with the user-defined threshold. When the voltage exceeds the threshold, the output is pulled low, indicating an alert or triggering an action. The device continuously monitors the voltage and generates a reset signal during power-up to ensure a controlled startup.

Application Field Plans

The TPS3700QDSERQ1 finds applications in various fields, including: 1. Battery-powered devices: It can be used to monitor battery voltage and prevent over-discharge or overcharge conditions. 2. Industrial automation: The IC ensures stable voltage levels in control systems, preventing malfunctions due to voltage fluctuations. 3. Automotive electronics: It provides voltage supervision in automotive systems, protecting sensitive components from damage.

Alternative Models

1. TPS3700DDCRQ1: Similar to the TPS3700QDSERQ1 but available in a smaller SOT-5 package.
2. TPS3700EVM-032: Evaluation module for testing and prototyping with the TPS3700 series voltage supervisors.

In conclusion, the TPS3700QDSERQ1 is an integrated circuit used for voltage monitoring and supervision. Its adjustable threshold, low power consumption, and wide temperature range make it suitable for various applications. However, it has limitations in terms of additional supervisory functions and high-voltage compatibility. The device's small package size and availability of alternative models provide flexibility in design choices.