TPS3780CDBVR

Product Overview

Category

The TPS3780CDBVR belongs to the category of integrated circuits (ICs).

Use

This IC is primarily used for current monitoring and protection in various electronic systems.

Characteristics

• Current monitoring accuracy: High precision with low offset voltage.
• Overcurrent detection: Detects overcurrent conditions and triggers appropriate actions.
• Adjustable threshold: Allows users to set the desired current threshold for detection.
• Fast response time: Provides quick detection and response to overcurrent events.
• Low power consumption: Operates efficiently, minimizing power consumption.

Package

The TPS3780CDBVR is available in a small SOT-23 package.

Essence

The essence of TPS3780CDBVR lies in its ability to accurately monitor and protect against overcurrent conditions in electronic systems.

Packaging/Quantity

The IC is typically packaged in reels, containing a quantity of 3000 units per reel.

Specifications

• Supply voltage range: 2.7V to 5.5V
• Operating temperature range: -40°C to +125°C
• Quiescent current: 10µA (typical)
• Response time: 1µs (typical)
• Output type: Active-low, open-drain

Detailed Pin Configuration

The TPS3780CDBVR features the following pin configuration:

```

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| | --| VDD | --| GND | --| IN | --| OUT | |___________| ```

• VDD: Power supply input
• GND: Ground reference
• IN: Current sense input
• OUT: Active-low output indicating overcurrent condition

Functional Features

1. Current Monitoring: The TPS3780CDBVR accurately monitors the current flowing through the IN pin.
2. Overcurrent Detection: It detects overcurrent conditions based on the set threshold and triggers the OUT pin accordingly.
3. Adjustable Threshold: Users can adjust the current threshold using external resistors to suit their specific requirements.
4. Fast Response Time: The IC provides a quick response time of 1µs, ensuring timely detection and protection against overcurrent events.
5. Low Power Consumption: With a quiescent current of only 10µA, the TPS3780CDBVR operates efficiently, minimizing power consumption.

Advantages and Disadvantages

Advantages

• High precision current monitoring
• Adjustable threshold for customization
• Fast response time for quick protection
• Low power consumption for energy efficiency

Disadvantages

• Limited to monitoring and protection against overcurrent conditions only
• Requires external resistors for threshold adjustment

Working Principles

The TPS3780CDBVR operates by measuring the voltage drop across a sense resistor connected to the IN pin. This voltage drop is proportional to the current flowing through the circuit being monitored. By comparing this voltage with the user-adjusted threshold, the IC determines whether an overcurrent condition exists. If detected, the OUT pin is activated, indicating the occurrence of an overcurrent event.

Detailed Application Field Plans

The TPS3780CDBVR finds applications in various fields, including:

1. Power Supplies: Used to monitor and protect power supply circuits from overcurrent situations.
2. Motor Control: Ensures safe operation of motors by detecting and responding to overcurrent events.
3. Battery Management Systems: Provides overcurrent protection in battery charging and discharging circuits.
4. Industrial Automation: Monitors current in industrial equipment to prevent damage caused by excessive currents.
5. Automotive Electronics: Protects automotive systems from overcurrent conditions, enhancing safety and reliability.

Detailed and Complete Alternative Models

1. TPS3700: Similar functionality with adjustable threshold, available in different package options.
2. INA199: Current shunt monitor IC with programmable gain and high accuracy.
3. ACS712: Hall effect-based current sensor IC with various current range options.
4. MAX9926: Overcurrent detection IC with integrated current sense amplifier and adjustable threshold.

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

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