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TPS25921LD
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TPS25921LD

Product Overview

Category

The TPS25921LD belongs to the category of power management integrated circuits (PMICs).

Use

It is primarily used for overvoltage and overcurrent protection in electronic systems.

Characteristics

  • Provides robust protection against voltage spikes and excessive current.
  • Offers low on-resistance to minimize power loss.
  • Supports a wide input voltage range.
  • Features adjustable current limit and fault reporting capabilities.

Package

The TPS25921LD is available in a small form factor package, such as QFN or BGA, which allows for easy integration into various electronic devices.

Essence

The essence of the TPS25921LD lies in its ability to safeguard electronic systems from potential damage caused by voltage surges and excessive current.

Packaging/Quantity

The TPS25921LD is typically sold in reels or trays, with a quantity of 250 or 3000 units per reel/tray.

Specifications

  • Input Voltage Range: 2.7V to 18V
  • Current Limit Range: 0.5A to 5A
  • On-Resistance: 20mΩ (typical)
  • Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The TPS25921LD has the following pin configuration:

  1. EN (Enable)
  2. IN (Input Voltage)
  3. OUT (Output Voltage)
  4. GND (Ground)
  5. FLT (Fault Indicator)

Functional Features

  • Overvoltage Protection: The TPS25921LD monitors the input voltage and disconnects the output when it exceeds a predefined threshold.
  • Overcurrent Protection: It limits the output current to prevent damage to the system.
  • Fault Reporting: The FLT pin provides an indication when a fault condition occurs.
  • Adjustable Current Limit: The TPS25921LD allows the user to set the desired current limit through external resistors.

Advantages and Disadvantages

Advantages

  • Robust protection against voltage spikes and excessive current.
  • Wide input voltage range for compatibility with various systems.
  • Adjustable current limit for flexibility.
  • Compact package for easy integration.

Disadvantages

  • Limited current limit range may not be suitable for high-power applications.
  • Temperature limitations restrict usage in extreme environments.

Working Principles

The TPS25921LD utilizes a combination of internal circuitry and external components to monitor the input voltage and control the output current. When an overvoltage or overcurrent condition is detected, it disconnects the output to protect the system. The adjustable current limit feature allows customization based on specific requirements.

Detailed Application Field Plans

The TPS25921LD finds application in various electronic systems that require reliable overvoltage and overcurrent protection. Some potential fields of application include:

  1. Consumer Electronics: Smartphones, tablets, laptops, and gaming consoles.
  2. Industrial Automation: Control systems, motor drives, and power supplies.
  3. Automotive Electronics: Infotainment systems, navigation units, and lighting controls.
  4. Telecommunications: Network equipment, routers, and switches.

Detailed and Complete Alternative Models

  1. TPS25940LD: Similar functionality with higher current limit range (up to 10A).
  2. TPS25942LD: Dual-channel version for simultaneous protection of multiple outputs.
  3. TPS25925LD: Lower current limit range (up to 2.5A) for low-power applications.

These alternative models offer similar features but cater to different current requirements and system configurations.

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Senaraikan 10 soalan dan jawapan biasa yang berkaitan dengan aplikasi TPS25921LD dalam penyelesaian teknikal

Sure! Here are 10 common questions and answers related to the application of TPS25921LD in technical solutions:

  1. Q: What is TPS25921LD? A: TPS25921LD is a power distribution switch with an integrated current-limiting feature, designed to protect systems from overcurrent and short-circuit conditions.

  2. Q: What is the maximum voltage rating of TPS25921LD? A: The maximum voltage rating of TPS25921LD is typically 18V.

  3. Q: How much current can TPS25921LD handle? A: TPS25921LD can handle a maximum continuous current of up to 5A.

  4. Q: Can TPS25921LD be used for reverse polarity protection? A: Yes, TPS25921LD can be used for reverse polarity protection by connecting it in series with the load.

  5. Q: Does TPS25921LD have thermal shutdown protection? A: Yes, TPS25921LD has built-in thermal shutdown protection to prevent overheating.

  6. Q: Can TPS25921LD be used in automotive applications? A: Yes, TPS25921LD is suitable for automotive applications as it meets the necessary requirements for automotive environments.

  7. Q: What is the typical quiescent current of TPS25921LD? A: The typical quiescent current of TPS25921LD is around 20µA.

  8. Q: Is TPS25921LD compatible with both analog and digital control signals? A: Yes, TPS25921LD is compatible with both analog and digital control signals, making it versatile for various applications.

  9. Q: Can TPS25921LD be used in battery-powered systems? A: Yes, TPS25921LD can be used in battery-powered systems as it has a low standby current and supports low-voltage operation.

  10. Q: Does TPS25921LD have built-in protection against short-circuits? A: Yes, TPS25921LD has integrated short-circuit protection to safeguard the system from excessive current flow during a short-circuit event.

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