TPS3701DDCR

Product Overview

Category

The TPS3701DDCR 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 a specified range, triggering appropriate actions when it goes beyond the set limits.

Characteristics

• Voltage supervision: The TPS3701DDCR can monitor voltages ranging from 0.4V to 5.5V.
• Adjustable threshold: The device allows users to set the desired voltage threshold for monitoring.
• Precision: It offers high accuracy in voltage monitoring, ensuring reliable performance.
• Low power consumption: The TPS3701DDCR operates with low power requirements, making it suitable for battery-powered applications.
• Small package size: This IC comes in a small SOT-23 package, enabling space-efficient designs.

Package and Quantity

The TPS3701DDCR is available in a SOT-23 package. It is typically sold in reels, with each reel containing 3000 units.

Specifications

• Supply voltage range: 1.6V to 6.5V
• Operating temperature range: -40°C to +125°C
• Quiescent current: 3 µA (typical)
• Threshold voltage accuracy: ±1.5% (maximum)

Pin Configuration

The TPS3701DDCR has a total of three pins:

1. GND: Ground pin for connecting to the system's ground.
2. VCC: Power supply input pin, which should be connected to the positive supply voltage.
3. OUT: Output pin that provides the monitored voltage status.

Functional Features

1. Under-voltage and over-voltage detection: The TPS3701DDCR can detect when the voltage falls below or exceeds the set threshold.
2. Power-on reset: It generates a reset signal during power-up, ensuring proper initialization of the system.
3. Adjustable hysteresis: The device allows users to set the voltage difference between the upper and lower thresholds, reducing false triggering.
4. Open-drain output: The OUT pin operates in an open-drain configuration, enabling easy interfacing with other devices.

Advantages and Disadvantages

Advantages

• Wide supply voltage range allows compatibility with various systems.
• Adjustable threshold and hysteresis provide flexibility in voltage monitoring.
• Low quiescent current minimizes power consumption.
• Small package size enables compact designs.

Disadvantages

• Limited to voltage monitoring applications only.
• Requires external components for complete functionality.

Working Principles

The TPS3701DDCR works by comparing the monitored voltage with the user-defined threshold. When the voltage crosses the threshold, the device triggers the appropriate action, such as generating an interrupt or resetting the system. The adjustable hysteresis ensures that the device remains stable and avoids false triggering caused by voltage fluctuations near the threshold.

Application Field Plans

The TPS3701DDCR finds applications in various fields where voltage monitoring is critical. Some potential application areas include:

1. Power management systems: Ensuring stable voltage levels in power supplies and battery-powered devices.
2. Industrial automation: Monitoring voltage in control systems and preventing damage due to over-voltage or under-voltage conditions.
3. Automotive electronics: Supervising voltage in automotive systems to prevent malfunctions and ensure safety.
4. Consumer electronics: Voltage monitoring in smartphones, tablets, and other portable devices to protect sensitive components.

Alternative Models

For those seeking alternative options, the following models can be considered:

1. TPS3700DDCR: Similar to TPS3701DDCR but with a fixed threshold voltage.
2. TPS3702DDCR: Offers additional features like adjustable delay time and power-on reset delay.

These alternative models provide similar functionality while catering to specific requirements.

In conclusion, the TPS3701DDCR is a voltage supervisor IC that offers precise monitoring of voltage levels in electronic systems. With its adjustable threshold, low power consumption, and small package size, it finds applications in various fields, including power management, industrial automation, automotive electronics, and consumer electronics.