TPS2481PWR

Product Overview

Category

The TPS2481PWR belongs to the category of integrated circuits (ICs) and specifically falls under the power management ICs.

Use

This IC is primarily used for overvoltage protection in various electronic systems, such as power supplies, battery chargers, and industrial equipment.

Characteristics

• Overvoltage Protection: The TPS2481PWR provides robust overvoltage protection by monitoring the input voltage and disconnecting the load when it exceeds a certain threshold.
• Fast Response Time: With its quick response time, this IC ensures prompt disconnection of the load during overvoltage events, preventing damage to downstream components.
• Low Power Consumption: The TPS2481PWR is designed to consume minimal power, making it suitable for energy-efficient applications.
• Wide Input Voltage Range: It can handle a wide range of input voltages, typically from 2.7V to 18V, allowing flexibility in different system designs.

Package and Quantity

The TPS2481PWR is available in a small-sized surface-mount package known as TSSOP-14. It is supplied in tape and reel packaging, with a quantity of 2500 units per reel.

Specifications

• Input Voltage Range: 2.7V to 18V
• Overvoltage Threshold: Adjustable, typically set at 5% above the desired output voltage
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 10µA (typical)
• Maximum Load Current: 2A
• Fault Detection Response Time: <1µs

Pin Configuration

The TPS2481PWR features a TSSOP-14 package with the following pin configuration:

Pin 1: VCC Pin 2: GND Pin 3: EN Pin 4: FLT Pin 5: OV Pin 6: NC Pin 7: NC Pin 8: NC Pin 9: NC Pin 10: NC Pin 11: NC Pin 12: NC Pin 13: OUT Pin 14: IN

Functional Features

1. Overvoltage Protection: The TPS2481PWR continuously monitors the input voltage and triggers a fault condition when it exceeds the set threshold.
2. Fast Response Time: Upon detecting an overvoltage event, the IC quickly disconnects the load from the input source to prevent damage.
3. Adjustable Threshold: The overvoltage threshold can be adjusted to suit specific application requirements.
4. Fault Indication: The FLT pin provides a signal indicating the occurrence of an overvoltage fault.
5. Enable Control: The EN pin allows for enabling or disabling the overvoltage protection functionality.

Advantages and Disadvantages

Advantages

• Reliable Overvoltage Protection: The TPS2481PWR ensures robust protection against overvoltage events, safeguarding downstream components.
• Fast Response Time: Its quick response time minimizes the risk of damage during overvoltage situations.
• Low Power Consumption: The IC's low quiescent current makes it suitable for power-sensitive applications.
• Adjustable Threshold: The ability to adjust the overvoltage threshold provides flexibility in different system designs.

Disadvantages

• Limited Load Current: The TPS2481PWR has a maximum load current rating of 2A, which may not be sufficient for high-power applications.
• Single Functionality: This IC is designed specifically for overvoltage protection and does not offer additional features like undervoltage or overcurrent protection.

Working Principles

The TPS2481PWR operates by continuously monitoring the input voltage. When the voltage exceeds the set threshold, it triggers a fault condition and disconnects the load from the input source. This action protects downstream components from potential damage caused by overvoltage events. The IC's fast response time ensures prompt disconnection, minimizing the risk of harm.

Application Field Plans

The TPS2481PWR finds applications in various electronic systems that require overvoltage protection. Some specific application fields include:

1. Power Supplies: It can be used in AC-DC or DC-DC power supplies to safeguard sensitive components from overvoltage conditions.
2. Battery Chargers: The IC ensures safe charging of batteries by preventing overvoltage situations during the charging process.
3. Industrial Equipment: In industrial settings, where voltage fluctuations are common, the TPS2481PWR provides reliable protection for critical equipment.

Alternative Models

For users seeking alternative options, the following integrated circuits offer similar functionality to the TPS2481PWR:

1. MAX16054: This IC provides overvoltage protection with adjustable thresholds and offers additional undervoltage