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TPS2087DG4
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TPS2087DG4

Basic Information Overview

  • Category: Integrated Circuit (IC)
  • Use: Power Distribution Switch
  • Characteristics: High Current Limit, Overtemperature Protection, Low Quiescent Current
  • Package: SOIC (Small Outline Integrated Circuit)
  • Essence: Efficient and Reliable Power Distribution Solution
  • Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

  • Input Voltage Range: 2.7V to 5.5V
  • Output Voltage Range: 0V to Vcc
  • Continuous Current Limit: 2.8A
  • Operating Temperature Range: -40°C to +85°C
  • Quiescent Current: 20µA (typical)

Detailed Pin Configuration

The TPS2087DG4 has a total of 8 pins:

  1. EN (Enable): Controls the power switch operation.
  2. IN (Input): Connects to the input voltage source.
  3. GND (Ground): Common ground reference.
  4. PG (Power Good): Indicates the output voltage is within regulation limits.
  5. OUT (Output): Connects to the load.
  6. FB (Feedback): Provides feedback for voltage regulation.
  7. SS (Soft Start): Controls the soft start time.
  8. ILIM (Current Limit): Sets the current limit threshold.

Functional Features

  • Overcurrent Protection: Automatically shuts off the power switch when the current exceeds the set limit.
  • Thermal Shutdown Protection: Prevents damage due to excessive temperature by disabling the power switch.
  • Soft Start: Gradually ramps up the output voltage to prevent inrush current.
  • Power Good Indicator: Signals when the output voltage is within the desired range.

Advantages and Disadvantages

Advantages: - High current limit allows for powering demanding loads. - Overtemperature protection ensures safe operation. - Low quiescent current minimizes power consumption.

Disadvantages: - Limited input voltage range (2.7V to 5.5V). - Maximum continuous current limit may not be sufficient for certain applications.

Working Principles

The TPS2087DG4 is a power distribution switch that controls the flow of current from the input to the output. It utilizes a MOSFET as a power switch, which can be enabled or disabled using the EN pin. The FB pin provides feedback to regulate the output voltage. The ILIM pin sets the current limit threshold, protecting the circuit from excessive current. The SS pin controls the soft start time, gradually increasing the output voltage to prevent inrush current. The PG pin indicates when the output voltage is within regulation limits.

Detailed Application Field Plans

The TPS2087DG4 is commonly used in various applications, including:

  1. USB Power Distribution: Provides power switching and protection for USB ports.
  2. Battery-Powered Devices: Controls power distribution in portable electronic devices.
  3. Industrial Automation: Enables efficient power management in industrial control systems.
  4. Automotive Electronics: Safely distributes power in automotive applications.
  5. Consumer Electronics: Used in TVs, gaming consoles, and other consumer devices.

Detailed and Complete Alternative Models

  1. TPS2051: Similar power distribution switch with a lower current limit.
  2. TPS2066: Power distribution switch with additional features like reverse current protection.
  3. TPS22920: Load switch with integrated power sequencing capabilities.

These alternative models offer different specifications and features, allowing users to choose the most suitable option for their specific requirements.

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10个与TPS2087DG4在技术解决方案中的应用相关的常见问题及解答

Sure! Here are 10 common questions and answers related to the application of TPS2087DG4 in technical solutions:

  1. Q: What is TPS2087DG4? A: TPS2087DG4 is a power distribution switch with integrated current limiting, ideal for applications requiring multiple power supplies.

  2. Q: What is the maximum input voltage supported by TPS2087DG4? A: The maximum input voltage supported by TPS2087DG4 is typically 18V.

  3. Q: Can TPS2087DG4 handle overcurrent conditions? A: Yes, TPS2087DG4 has built-in current limiting and thermal shutdown protection to handle overcurrent conditions.

  4. Q: How many power channels does TPS2087DG4 support? A: TPS2087DG4 supports up to 8 independent power channels.

  5. Q: What is the maximum continuous current per channel supported by TPS2087DG4? A: The maximum continuous current per channel supported by TPS2087DG4 is typically 0.5A.

  6. Q: Is TPS2087DG4 compatible with both analog and digital signals? A: Yes, TPS2087DG4 is compatible with both analog and digital signals.

  7. Q: Does TPS2087DG4 have an enable pin for each channel? A: Yes, TPS2087DG4 has an individual enable pin for each power channel.

  8. Q: Can TPS2087DG4 be used in automotive applications? A: Yes, TPS2087DG4 is suitable for automotive applications as it meets the necessary requirements for automotive environments.

  9. Q: What is the operating temperature range of TPS2087DG4? A: The operating temperature range of TPS2087DG4 is typically -40°C to +85°C.

  10. Q: Does TPS2087DG4 have built-in reverse polarity protection? A: No, TPS2087DG4 does not have built-in reverse polarity protection. Additional external circuitry may be required for reverse polarity protection.

Please note that the answers provided here are general and may vary depending on specific datasheet specifications and application requirements.