IS31LT3948-GRLS2-TR

Product Overview

Category

IS31LT3948-GRLS2-TR belongs to the category of integrated circuits (ICs).

Use

This product is commonly used for driving and controlling LED lighting applications.

Characteristics

• High efficiency LED driver
• Wide input voltage range
• Dimming control options
• Over-temperature protection
• Short-circuit protection

Package

IS31LT3948-GRLS2-TR is available in a small outline package (SOP) with 8 pins.

Essence

The essence of this product lies in its ability to efficiently drive and control LED lighting systems, ensuring optimal performance and longevity.

Packaging/Quantity

IS31LT3948-GRLS2-TR is typically packaged in reels and comes in quantities of 3000 units per reel.

Specifications

• Input Voltage Range: 4.5V to 40V
• Output Current Range: Up to 1A
• Dimming Control: Analog/PWM
• Operating Temperature Range: -40°C to 85°C
• Efficiency: Up to 95%
• Protection Features: Over-temperature, short-circuit

Detailed Pin Configuration

1. VIN: Input voltage
2. GND: Ground
3. DIM: Dimming control input
4. EN: Enable pin
5. FB: Feedback pin
6. VOUT: Output voltage
7. SW: Switching node
8. LX: Inductor connection

Functional Features

• Wide input voltage range allows compatibility with various power sources.
• Dimming control options enable adjustable brightness levels.
• Over-temperature protection ensures safe operation under high temperature conditions.
• Short-circuit protection prevents damage to the LED driver and connected LEDs.

Advantages

• High efficiency results in reduced power consumption and heat dissipation.
• Wide input voltage range provides flexibility in different applications.
• Dimming control allows for customized lighting levels.
• Protection features enhance the reliability and lifespan of the LED driver.

Disadvantages

• Limited output current range may not be suitable for high-power LED applications.
• The small outline package (SOP) may require additional thermal management measures in certain scenarios.

Working Principles

IS31LT3948-GRLS2-TR operates as a buck LED driver, converting the higher input voltage to a lower output voltage required by the LEDs. It utilizes a switching regulator topology to efficiently regulate the current flowing through the LEDs. The dimming control input adjusts the duty cycle of the switching regulator, thereby controlling the brightness of the LEDs.

Detailed Application Field Plans

IS31LT3948-GRLS2-TR finds applications in various fields, including: 1. Automotive lighting systems 2. Industrial lighting 3. Residential and commercial lighting 4. Backlighting for displays and signage 5. Outdoor lighting solutions

Detailed and Complete Alternative Models

1. IS31LT3947-GRLS2-TR
2. IS31LT3949-GRLS2-TR
3. LT3476-TRPBF
4. LM3409HVMM/NOPB
5. TPS92550EVM-001

These alternative models offer similar functionality and can be considered as alternatives to IS31LT3948-GRLS2-TR based on specific application requirements.

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