LT3796EFE-1#TRPBF

Product Overview

Category

The LT3796EFE-1#TRPBF belongs to the category of integrated circuits (ICs) specifically designed for power management applications.

Use

This IC is commonly used in various power management systems, including LED lighting, automotive lighting, and general-purpose lighting applications.

Characteristics

• High efficiency: The LT3796EFE-1#TRPBF offers high efficiency power conversion, making it suitable for energy-efficient applications.
• Wide input voltage range: It can operate with a wide input voltage range, allowing flexibility in different power supply configurations.
• Dimming control: The IC provides versatile dimming control options, enabling precise brightness adjustment in lighting applications.
• Protection features: It incorporates various protection features such as overvoltage protection, overcurrent protection, and thermal shutdown, ensuring safe operation.

Package

The LT3796EFE-1#TRPBF is available in a small form factor package, which facilitates easy integration into compact electronic devices.

Essence

The essence of LT3796EFE-1#TRPBF lies in its ability to efficiently manage power in lighting applications, offering high performance and reliability.

Packaging/Quantity

This IC is typically supplied in tape and reel packaging, with a quantity of 2500 units per reel.

Specifications

• Input Voltage Range: 4.5V to 100V
• Output Voltage Range: 0.8V to 60V
• Maximum Switching Frequency: 1MHz
• Maximum Output Current: 4A
• Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The LT3796EFE-1#TRPBF features a 24-pin package with the following pin configuration:

1. VIN: Input voltage pin
2. VCC: Supply voltage pin
3. GND: Ground pin
4. SW: Switching node pin
5. FB: Feedback pin
6. COMP: Compensation pin
7. SS: Soft-start pin
8. RT/CLKOUT: External resistor or clock output pin
9. SYNC/MODE: Synchronization or mode selection pin
10. INTVCC: Internal supply voltage pin
11. VREF: Reference voltage pin
12. ITH: Current sense threshold pin
13. ADJ: Output voltage adjustment pin
14. LX: Inductor connection pin 15-24. NC: No connect pins

Functional Features

1. High-efficiency step-down converter
2. Wide input voltage range operation
3. Versatile dimming control options (analog, PWM, and I²C)
4. Programmable switching frequency
5. Fault protection features (overvoltage, overcurrent, thermal shutdown)

Advantages and Disadvantages

Advantages

• High efficiency power conversion
• Wide input voltage range for flexibility
• Versatile dimming control options
• Compact package size for easy integration
• Comprehensive fault protection features

Disadvantages

• Limited maximum output current (4A)
• Requires external components for operation
• Relatively high cost compared to some alternatives

Working Principles

The LT3796EFE-1#TRPBF operates as a step-down (buck) converter, converting a higher input voltage to a lower output voltage efficiently. It utilizes a high-frequency switching technique to regulate the output voltage while minimizing power losses. The IC incorporates various control mechanisms to ensure stable and accurate voltage regulation, including feedback loop control, compensation circuitry, and soft-start functionality.

Detailed Application Field Plans

The LT3796EFE-1#TRPBF finds extensive application in the following fields:

1. LED lighting systems: It is widely used in LED driver circuits for both residential and commercial lighting applications.
2. Automotive lighting: The IC is employed in automotive lighting systems, including headlights, taillights, and interior lighting.
3. General-purpose lighting: It can be utilized in various general-purpose lighting applications such as streetlights, industrial lighting, and architectural lighting.

Detailed and Complete Alternative Models

1. LT3796-1: Similar to LT3796EFE-1#TRPBF but with a different package option (e.g., DFN)
2. LT3763: A related IC with similar features but optimized for higher output current applications
3. LT3957: An alternative IC with additional features such as fault diagnostics and protection

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

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