LT3797EUKG#PBF

Product Overview

Category: Integrated Circuit (IC)

Use: LED Driver

Characteristics: - High Efficiency - Wide Input Voltage Range - Dimming Control - Fault Protection

Package: 5-Lead TO-220

Essence: The LT3797EUKG#PBF is a high voltage, high power LED driver IC designed to efficiently drive LEDs in various lighting applications.

Packaging/Quantity: The LT3797EUKG#PBF is available in a 5-Lead TO-220 package. The quantity per package may vary depending on the supplier.

Specifications

• Input Voltage Range: 4V to 60V
• Output Current: Up to 1000mA
• Switching Frequency: Up to 1MHz
• Dimming Control: Analog/PWM
• Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The LT3797EUKG#PBF has the following pin configuration:

1. VIN: Input Voltage
2. GND: Ground
3. VCC: Supply Voltage for Internal Circuitry
4. CTRL: Dimming Control Input
5. SW: Switch Node

Functional Features

• Wide input voltage range allows for versatile application in different lighting systems.
• High efficiency enables energy savings and reduces heat dissipation.
• Dimming control capability provides flexibility in adjusting light output.
• Fault protection features ensure reliable operation and protect the LED system from damage.

Advantages and Disadvantages

Advantages: - High efficiency results in energy savings. - Wide input voltage range allows for compatibility with various power sources. - Dimming control offers flexibility in lighting design. - Fault protection ensures reliability and longevity of the LED system.

Disadvantages: - Limited output current may not be suitable for high-power LED applications. - The TO-220 package may require additional heat sinking for efficient thermal management.

Working Principles

The LT3797EUKG#PBF operates as a constant current LED driver. It utilizes a boost converter topology to efficiently regulate the LED current. The input voltage is boosted to a higher voltage level, which is then used to drive the LEDs with a constant current. The dimming control input allows for adjusting the LED brightness by varying the duty cycle of the PWM signal or the analog control voltage.

Detailed Application Field Plans

The LT3797EUKG#PBF can be applied in various lighting systems, including but not limited to: - Automotive Lighting - Architectural Lighting - Industrial Lighting - Signage and Display Lighting - General Illumination

Detailed and Complete Alternative Models

1. LT3796: Similar features and specifications, but with a different pin configuration.
2. LT3763: Higher output current capability, suitable for high-power LED applications.
3. LT3957: Integrated power factor correction (PFC) functionality for improved efficiency.

These alternative models offer similar functionalities and can be considered based on specific application requirements.

In conclusion, the LT3797EUKG#PBF is a versatile LED driver IC that offers high efficiency, wide input voltage range, and dimming control capabilities. While it has some limitations in terms of output current and package type, it provides reliable and efficient operation in various lighting applications.