Intersil
L'image peut être une représentation.
Voir les spécifications pour les détails du produit.
ISL97642IRTZ
Voir les détails DataSheets

ISL97642IRTZ

Product Overview

Category: Integrated Circuit (IC)

Use: LED Driver

Characteristics: - High efficiency - Low power consumption - Dimming control - Wide input voltage range

Package: 32-Lead QFN (Quad Flat No-Lead)

Essence: The ISL97642IRTZ is a high-efficiency LED driver IC designed for driving multiple strings of LEDs in backlighting applications.

Packaging/Quantity: The ISL97642IRTZ is available in a 32-Lead QFN package. It is typically sold in reels containing a quantity of 250 units.

Specifications

  • Input Voltage Range: 4.5V to 26V
  • Output Current Range: Up to 1.5A per channel
  • Number of Channels: 4
  • Dimming Control: PWM (Pulse Width Modulation)
  • Efficiency: Up to 95%
  • Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The ISL97642IRTZ has a total of 32 pins. Here is the detailed pin configuration:

  1. VIN: Power supply input
  2. GND: Ground
  3. VDD: Digital supply voltage
  4. EN: Enable pin
  5. DIM1: Dimming control input for Channel 1
  6. DIM2: Dimming control input for Channel 2
  7. DIM3: Dimming control input for Channel 3
  8. DIM4: Dimming control input for Channel 4
  9. FB1: Feedback pin for Channel 1
  10. FB2: Feedback pin for Channel 2
  11. FB3: Feedback pin for Channel 3
  12. FB4: Feedback pin for Channel 4
  13. OUT1: Output pin for Channel 1
  14. OUT2: Output pin for Channel 2
  15. OUT3: Output pin for Channel 3
  16. OUT4: Output pin for Channel 4 17-32. NC: No connection

Functional Features

  • High-efficiency LED driver with integrated power MOSFETs
  • Four independent channels for driving multiple strings of LEDs
  • Wide input voltage range allows for versatile applications
  • Dimming control through PWM signals for precise brightness adjustment
  • Overcurrent protection and thermal shutdown for enhanced safety

Advantages and Disadvantages

Advantages: - High efficiency results in energy savings - Low power consumption - Precise dimming control for optimal brightness adjustment - Compact package size for space-constrained designs

Disadvantages: - Limited to driving LEDs and not suitable for other types of loads - Requires external components for proper operation

Working Principles

The ISL97642IRTZ operates by converting the input voltage into a regulated current source for driving multiple strings of LEDs. It utilizes pulse width modulation (PWM) to control the brightness of the LEDs. The integrated power MOSFETs ensure high efficiency and low power consumption.

Detailed Application Field Plans

The ISL97642IRTZ is commonly used in various backlighting applications, including: - LCD monitors and televisions - Automotive displays - Industrial control panels - Signage and advertising displays

Detailed and Complete Alternative Models

Here are some alternative models that can be considered as alternatives to the ISL97642IRTZ:

  1. LT3799: LED driver IC with similar features and performance.
  2. MAX16834: Integrated LED driver with wide input voltage range.
  3. TPS61165: High-efficiency LED driver with adjustable output current.

These alternative models offer similar functionality and can be suitable replacements depending on specific requirements.

Word count: 410

Énumérez 10 questions et réponses courantes liées à l'application de ISL97642IRTZ dans les solutions techniques

Sure! Here are 10 common questions and answers related to the application of ISL97642IRTZ in technical solutions:

  1. Q: What is ISL97642IRTZ? A: ISL97642IRTZ is a high-efficiency, 4-channel LED driver designed for backlighting applications in LCD displays.

  2. Q: What is the input voltage range supported by ISL97642IRTZ? A: The input voltage range supported by ISL97642IRTZ is typically between 4.5V and 26V.

  3. Q: How many LEDs can be driven by ISL97642IRTZ? A: ISL97642IRTZ can drive up to 4 LEDs in series per channel, allowing a total of 16 LEDs to be driven.

  4. Q: Can ISL97642IRTZ support dimming functionality? A: Yes, ISL97642IRTZ supports both analog and PWM dimming control methods for adjusting the brightness of the LEDs.

  5. Q: What is the maximum current that ISL97642IRTZ can deliver to each LED channel? A: ISL97642IRTZ can deliver a maximum current of 60mA to each LED channel.

  6. Q: Does ISL97642IRTZ have built-in protection features? A: Yes, ISL97642IRTZ includes various protection features such as overvoltage protection, overcurrent protection, and thermal shutdown.

  7. Q: Can ISL97642IRTZ operate in a wide temperature range? A: Yes, ISL97642IRTZ is designed to operate in a temperature range of -40°C to +85°C.

  8. Q: Is ISL97642IRTZ compatible with different types of LEDs? A: Yes, ISL97642IRTZ is compatible with a wide range of LED types, including white, RGB, and multi-color LEDs.

  9. Q: What is the typical efficiency of ISL97642IRTZ? A: The typical efficiency of ISL97642IRTZ is around 90%, ensuring high power conversion efficiency.

  10. Q: Can ISL97642IRTZ be used in automotive applications? A: Yes, ISL97642IRTZ is suitable for automotive applications as it meets the necessary requirements such as AEC-Q100 Grade 1 qualification.

Please note that these answers are general and may vary depending on the specific application and implementation of ISL97642IRTZ.