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IS31LT3938-GRLS2-TR
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IS31LT3938-GRLS2-TR

Product Overview

Category

IS31LT3938-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
  • Low quiescent current
  • Wide input voltage range
  • Dimming control capability
  • Over-temperature protection
  • Short-circuit protection

Package

IS31LT3938-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

IS31LT3938-GRLS2-TR is typically packaged in reels or tubes, with a quantity of 3000 units per reel/tube.

Specifications

  • Input Voltage Range: 4.5V to 40V
  • Output Current: Up to 1.5A
  • Quiescent Current: 100μA
  • Dimming Control: PWM or analog dimming
  • Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

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

Functional Features

  • High-efficiency boost converter
  • Adjustable output current
  • Over-temperature protection
  • Short-circuit protection
  • Dimming control through PWM or analog signal
  • Soft-start function for smooth power-up

Advantages and Disadvantages

Advantages

  • High efficiency leads to energy savings
  • Wide input voltage range allows for versatile applications
  • Dimming control capability enables lighting customization
  • Over-temperature and short-circuit protection enhance reliability

Disadvantages

  • Limited output current may not be suitable for high-power LED applications
  • Requires external components for proper operation

Working Principles

IS31LT3938-GRLS2-TR operates as a boost converter, converting the input voltage to a higher output voltage required for driving LEDs. It utilizes a feedback mechanism to regulate the output current and maintain stable illumination. The dimming control feature allows for adjusting the brightness of the LEDs through either PWM or analog signal.

Detailed Application Field Plans

IS31LT3938-GRLS2-TR finds application in various LED lighting systems, including: 1. Automotive lighting 2. Industrial lighting 3. Architectural lighting 4. Signage and display lighting 5. Residential and commercial lighting

Detailed and Complete Alternative Models

  1. IS31LT3938-GRLS2-TR: 1.5A output current, SOP-8 package
  2. IS31LT3938-GRLS2: 1.5A output current, SOP-8 package
  3. IS31LT3938-GRLS1-TR: 1A output current, SOP-8 package
  4. IS31LT3938-GRLS1: 1A output current, SOP-8 package
  5. IS31LT3938-GRLS0-TR: 500mA output current, SOP-8 package
  6. IS31LT3938-GRLS0: 500mA output current, SOP-8 package

These alternative models provide different output current options to suit various LED lighting requirements.

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قم بإدراج 10 أسئلة وإجابات شائعة تتعلق بتطبيق IS31LT3938-GRLS2-TR في الحلول التقنية

Sure! Here are 10 common questions and answers related to the application of IS31LT3938-GRLS2-TR in technical solutions:

  1. Q: What is IS31LT3938-GRLS2-TR? A: IS31LT3938-GRLS2-TR is a specific model of LED driver IC (integrated circuit) designed for driving LEDs in various lighting applications.

  2. Q: What is the input voltage range supported by IS31LT3938-GRLS2-TR? A: The input voltage range supported by IS31LT3938-GRLS2-TR is typically between 4.5V and 60V.

  3. Q: How many LEDs can be driven by IS31LT3938-GRLS2-TR? A: IS31LT3938-GRLS2-TR can drive up to 6 LEDs in series, depending on the forward voltage requirements of the LEDs.

  4. Q: Can IS31LT3938-GRLS2-TR dim the LEDs? A: Yes, IS31LT3938-GRLS2-TR supports PWM (Pulse Width Modulation) dimming, allowing precise control of LED brightness.

  5. Q: What is the maximum current output of IS31LT3938-GRLS2-TR? A: The maximum current output of IS31LT3938-GRLS2-TR is typically 150mA per channel.

  6. Q: Does IS31LT3938-GRLS2-TR have built-in protection features? A: Yes, IS31LT3938-GRLS2-TR includes various protection features such as over-temperature protection, over-voltage protection, and short-circuit protection.

  7. Q: Can IS31LT3938-GRLS2-TR be used in automotive applications? A: Yes, IS31LT3938-GRLS2-TR is suitable for automotive lighting applications as it meets the necessary standards and requirements.

  8. Q: What is the operating temperature range of IS31LT3938-GRLS2-TR? A: The operating temperature range of IS31LT3938-GRLS2-TR is typically -40°C to +125°C.

  9. Q: Does IS31LT3938-GRLS2-TR require any external components for operation? A: Yes, IS31LT3938-GRLS2-TR requires external components such as resistors, capacitors, and inductors for proper functionality.

  10. Q: Is IS31LT3938-GRLS2-TR RoHS compliant? A: Yes, IS31LT3938-GRLS2-TR is RoHS (Restriction of Hazardous Substances) compliant, ensuring it meets environmental regulations.

Please note that the answers provided here are general and may vary depending on the specific datasheet and application guidelines provided by the manufacturer.