LTC4365IDDB-1#TRPBF

Product Overview

Category

The LTC4365IDDB-1#TRPBF belongs to the category of integrated circuits (ICs) used in power management applications.

Use

This product is primarily used for protection and control purposes in electronic systems, ensuring safe and reliable operation.

Characteristics

• Integrated circuit designed for power management
• Provides protection against overvoltage, undervoltage, and reverse voltage conditions
• Offers fault detection and automatic shutdown features
• Compact and lightweight package for easy integration into various electronic devices

Package

The LTC4365IDDB-1#TRPBF is available in a small form factor DFN (Dual Flat No-Lead) package. This package type ensures efficient heat dissipation and allows for surface mount assembly.

Essence

The essence of LTC4365IDDB-1#TRPBF lies in its ability to protect electronic systems from voltage-related faults, thereby preventing damage to sensitive components and ensuring system reliability.

Packaging/Quantity

This product is typically supplied in tape and reel packaging, with a specified quantity per reel. The exact quantity may vary depending on the manufacturer's specifications.

Specifications

• Input Voltage Range: 2.5V to 5.5V
• Overvoltage Threshold: Adjustable from 2.6V to 5.8V
• Undervoltage Threshold: Adjustable from 1.8V to 4.9V
• Reverse Voltage Protection: Up to -40V
• Operating Temperature Range: -40°C to 85°C
• Maximum Output Current: 3A

Detailed Pin Configuration

The LTC4365IDDB-1#TRPBF features the following pin configuration:

1. GATE: Gate drive output for external N-channel MOSFET
2. VIN: Input voltage pin
3. GND: Ground reference pin
4. VOUT: Output voltage pin
5. FB: Feedback pin for adjusting overvoltage and undervoltage thresholds
6. UVLO: Undervoltage lockout pin
7. OVLO: Overvoltage lockout pin

Functional Features

• Overvoltage Protection: Monitors the input voltage and shuts down the external MOSFET when it exceeds the set threshold, protecting downstream components.
• Undervoltage Protection: Detects low input voltage conditions and disables the MOSFET to prevent system malfunction.
• Reverse Voltage Protection: Safeguards against reverse polarity connection by blocking current flow in the opposite direction.
• Fault Detection: Provides fault indication through the FAULT pin, signaling abnormal operating conditions.
• Automatic Shutdown: Initiates a shutdown sequence when a fault is detected, preventing further damage to the system.

Advantages and Disadvantages

Advantages

• Comprehensive protection against various voltage-related faults
• Adjustable overvoltage and undervoltage thresholds for customization
• Compact package size for easy integration into space-constrained designs
• Efficient heat dissipation due to DFN package type

Disadvantages

• Limited maximum output current of 3A may not be suitable for high-power applications
• Requires additional external components for complete functionality

Working Principles

The LTC4365IDDB-1#TRPBF operates by continuously monitoring the input voltage and comparing it with the user-adjustable overvoltage and undervoltage thresholds. When the input voltage exceeds the set overvoltage threshold, the device shuts down the external MOSFET, disconnecting the load from the input source. Similarly, if the input voltage falls below the undervoltage threshold, the MOSFET is disabled to prevent system malfunction. The device also incorporates reverse voltage protection to safeguard against incorrect polarity connections.

Detailed Application Field Plans

The LTC4365IDDB-1#TRPBF finds applications in various fields, including:

1. Power Supplies: Protects power supply units from voltage spikes and faults, ensuring stable and reliable operation.
2. Battery Management Systems: Safeguards battery-powered devices from overvoltage and undervoltage conditions, prolonging battery life.
3. Industrial Control Systems: Provides protection for sensitive electronic components used in industrial automation and control systems.
4. Automotive Electronics: Ensures the safety and reliability of automotive electronics by protecting against voltage-related faults.

Detailed and Complete Alternative Models

1. LTC4364: Similar to LTC4365IDDB-1#TRPBF, but with a higher maximum output current of 6A.
2. LTC4366: Offers additional features such as adjustable fault response time and reverse current blocking.

These alternative models provide similar functionality and can be considered based on specific application requirements.

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