TPS389015DSET

Product Overview

Category

The TPS389015DSET belongs to the category of integrated circuits (ICs) and specifically falls under the voltage supervisors or voltage monitors subcategory.

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 Range: The TPS389015DSET operates within a voltage range of 1.5V to 5.5V.
• Low Power Consumption: It consumes minimal power during operation, making it suitable for battery-powered devices.
• Adjustable Threshold: The voltage threshold can be adjusted to suit specific application requirements.
• Reset Delay: It provides a programmable reset delay time to allow for stabilization before resuming normal operation.

Package

The TPS389015DSET is available in a small surface-mount package, commonly known as SOT-23-5. This package offers compactness and ease of integration into various electronic systems.

Essence

The essence of the TPS389015DSET lies in its ability to monitor voltage levels and provide a reliable reset signal when necessary. It ensures the stability and proper functioning of electronic devices by preventing them from operating outside the desired voltage range.

Packaging/Quantity

The TPS389015DSET is typically sold in reels containing a quantity of 3000 units per reel. This packaging format is commonly used for automated assembly processes in manufacturing.

Specifications

• Supply Voltage Range: 1.5V to 5.5V
• Reset Threshold Accuracy: ±1.5%
• Reset Timeout Period: Programmable (10ms to 640ms)
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 3µA (typical)

Detailed Pin Configuration

The TPS389015DSET has a total of five pins, each serving a specific function:

1. GND: Ground pin for electrical reference.
2. VDD: Power supply input pin.
3. MR: Manual reset input pin. Pulling this pin low forces a reset.
4. RESET: Output pin that provides a reset signal to the system.
5. VIT: Voltage input pin for monitoring the voltage level.

Functional Features

• Undervoltage Monitoring: The TPS389015DSET continuously monitors the voltage level and asserts the reset signal when it falls below the programmed threshold.
• Adjustable Threshold: The voltage threshold can be set using external resistors, allowing flexibility in different applications.
• Reset Delay: It provides a programmable reset delay time to ensure stability before resuming normal operation.
• Manual Reset: The manual reset input allows for an immediate reset by pulling the MR pin low.

Advantages and Disadvantages

Advantages

• Wide operating voltage range enables compatibility with various electronic systems.
• Low power consumption makes it suitable for battery-powered devices.
• Adjustable threshold allows customization for different voltage requirements.
• Small package size facilitates integration into space-constrained designs.

Disadvantages

• Limited reset timeout period may not be suitable for certain applications requiring longer stabilization times.
• Lack of built-in hysteresis may result in oscillations near the threshold voltage.

Working Principles

The TPS389015DSET operates based on a voltage comparator circuit. It compares the voltage at the VIT pin with the internally set threshold voltage. When the voltage drops below the threshold, the RESET pin is asserted, indicating a reset condition. The reset remains active until the voltage rises above the threshold or a manual reset is triggered.

Detailed Application Field Plans

The TPS389015DSET finds application in various fields where voltage monitoring and reliable reset functionality are crucial. Some potential application areas include:

1. Microcontrollers: Ensuring stable power supply voltage for microcontrollers to prevent data corruption during voltage fluctuations.
2. Industrial Control Systems: Monitoring critical voltage levels in industrial control systems to prevent damage or malfunctioning.
3. Automotive Electronics: Providing voltage supervision in automotive electronics to ensure proper operation and prevent system failures.
4. Battery-Powered Devices: Protecting battery-powered devices from operating outside the safe voltage range, prolonging battery life.

Detailed and Complete Alternative Models

• TPS389015DSET is a specific variant of the TPS3890 series voltage supervisors offered by Texas Instruments.
• Alternative models within the TPS3890 series include TPS389001DSET, TPS389002DSET, TPS389003DSET, etc.
• Other manufacturers also offer similar voltage supervisor ICs, such as MAX809, ADM708, and MCP131.

Note: The alternative models mentioned above are just a few examples and not an exhaustive list.

This concludes the encyclopedia entry for the TPS389015DSET, covering its basic information, specifications, pin configuration, functional