TPS2421-1DDAR

Product Overview

Category

The TPS2421-1DDAR belongs to the category of integrated circuits (ICs) and specifically falls under the power management ICs.

Use

This IC is primarily used for power distribution and protection in various electronic systems. It provides efficient control and monitoring of power supply to ensure safe operation of the system.

Characteristics

• Power management IC
• Provides power distribution and protection
• Efficient control and monitoring
• Ensures safe operation of electronic systems

Package

The TPS2421-1DDAR is available in a small outline package (SOP) with eight pins. This package offers ease of integration into different circuit designs and ensures reliable performance.

Essence

The essence of the TPS2421-1DDAR lies in its ability to regulate and protect power supply in electronic systems, preventing damage due to overvoltage, overcurrent, or short circuits.

Packaging/Quantity

The TPS2421-1DDAR is typically packaged in reels or tubes, depending on the manufacturer's specifications. The quantity per reel or tube may vary but is usually around 250 units.

Specifications

• Input voltage range: 2.7V to 5.5V
• Output voltage range: 0V to VCC
• Maximum continuous current: 2A
• Operating temperature range: -40°C to 85°C
• Quiescent current: 50µA (typical)
• Overvoltage protection threshold: 6.5V (typical)
• Short-circuit current limit: 3.5A (typical)

Detailed Pin Configuration

The TPS2421-1DDAR has eight pins arranged as follows:

1. EN (Enable): Controls the operation of the IC.
2. IN (Input): Connects to the power supply source.
3. GND (Ground): Common ground reference.
4. PG (Power Good): Indicates the status of the power supply.
5. FLT (Fault): Signals any fault conditions, such as overvoltage or short circuit.
6. OUT (Output): Connects to the load or downstream circuitry.
7. SS (Soft Start): Controls the startup behavior of the IC.
8. FB (Feedback): Provides feedback for voltage regulation.

Functional Features

1. Overvoltage Protection: Monitors the output voltage and shuts down the IC if it exceeds a predefined threshold, protecting the load from damage.
2. Current Limiting: Detects excessive current flow and limits it to prevent overheating and potential component failure.
3. Fault Reporting: The FLT pin signals any fault conditions, allowing for quick identification and troubleshooting.
4. Soft Start: The SS pin enables a controlled startup, gradually ramping up the output voltage to avoid sudden surges that could harm the load.
5. Power Good Indicator: The PG pin provides an indication of the power supply status, ensuring proper functioning of downstream components.

Advantages and Disadvantages

Advantages

• Efficient power distribution and protection
• Compact package for easy integration
• Wide input voltage range for versatility
• Reliable performance in various operating conditions
• Fault reporting for quick troubleshooting

Disadvantages

• Limited maximum continuous current (2A)
• Requires external components for complete power management solution

Working Principles

The TPS2421-1DDAR operates by continuously monitoring the input and output voltages and currents. It compares these values with predefined thresholds to detect any abnormal conditions. If a fault is detected, such as overvoltage or excessive current, the IC takes appropriate action to protect the load. This can include shutting down the output, limiting the current, or signaling the fault condition.

Detailed Application Field Plans

The TPS2421-1DDAR finds applications in various electronic systems that require efficient power distribution and protection. Some specific application fields include:

1. Industrial Automation: Power management in control systems, motor drives, and PLCs.
2. Consumer Electronics: Protection of sensitive components in smartphones, tablets, and gaming consoles.
3. Automotive Electronics: Power supply regulation and protection in vehicle infotainment systems, lighting controls, and advanced driver-assistance systems (ADAS).
4. Telecommunications: Power management in network equipment, routers, and base stations.
5. Medical Devices: Ensuring reliable power supply in medical equipment, such as patient monitors and diagnostic devices.

Detailed and Complete Alternative Models

1. TPS2420-1DDAR: Similar to the TPS2421-1DDAR but with a lower maximum continuous current rating of 1A.
2. TPS2422-1DDAR: Similar to the TPS2421-1DDAR but with a higher maximum continuous current rating of 3A.
3. TPS2421-2DDAR: Dual-channel version of