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ISL97644IRZ-TK
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ISL97644IRZ-TK

Product Overview

Category

ISL97644IRZ-TK belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in electronic devices for controlling and driving LED backlighting.

Characteristics

  • Integrated circuit designed for LED backlighting applications.
  • High efficiency and low power consumption.
  • Compact package for easy integration into various electronic devices.
  • Provides precise current regulation for uniform brightness control.
  • Supports dimming functionality for adjustable backlight intensity.

Package

ISL97644IRZ-TK is available in a small outline integrated circuit (SOIC) package.

Essence

The essence of ISL97644IRZ-TK lies in its ability to efficiently drive and control LED backlighting, ensuring optimal brightness and power management in electronic devices.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

  • Input Voltage Range: 4.5V to 26V
  • Output Voltage Range: 0.6V to 24V
  • Maximum Output Current: 1.2A
  • Dimming Control: PWM or DC voltage
  • Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

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

Functional Features

  • Precise current regulation for consistent LED brightness.
  • Wide input voltage range for compatibility with various power sources.
  • Support for both PWM and DC voltage dimming control methods.
  • Overvoltage and overcurrent protection for enhanced safety.
  • Thermal shutdown feature to prevent overheating.

Advantages and Disadvantages

Advantages

  • High efficiency, resulting in lower power consumption.
  • Compact package for easy integration into electronic devices.
  • Wide input voltage range allows for versatile applications.
  • Dimming control enables adjustable backlight intensity.

Disadvantages

  • Limited maximum output current of 1.2A may not be suitable for high-power LED applications.
  • Operating temperature range may restrict usage in extreme environments.

Working Principles

ISL97644IRZ-TK operates by regulating the current flowing through the LEDs used for backlighting. It converts the input voltage to a precise output voltage required for driving the LEDs. The dimming control input allows for adjusting the brightness of the LEDs, either through pulse width modulation (PWM) or by varying the DC voltage level.

Detailed Application Field Plans

ISL97644IRZ-TK finds application in various electronic devices that utilize LED backlighting, including: - LCD monitors and televisions - Laptop computers - Automotive displays - Handheld devices (e.g., smartphones, tablets) - Industrial control panels

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to ISL97644IRZ-TK are: - LP8550TLX/NOPB - AP8803SG-13 - TPS61165DRVR - BD6107F-E2

These models offer similar functionality and characteristics, providing options for different design requirements.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací ISL97644IRZ-TK v technických řešeních

Sure! Here are 10 common questions and answers related to the application of ISL97644IRZ-TK in technical solutions:

  1. Q: What is ISL97644IRZ-TK? A: ISL97644IRZ-TK is a high-efficiency, 4-channel LED driver designed for backlighting applications in LCD displays.

  2. Q: What is the input voltage range of ISL97644IRZ-TK? A: The input voltage range of ISL97644IRZ-TK is typically between 4.5V and 26V.

  3. Q: How many channels does ISL97644IRZ-TK support? A: ISL97644IRZ-TK supports up to 4 channels, allowing control of multiple LEDs independently.

  4. Q: What is the maximum current per channel that ISL97644IRZ-TK can handle? A: ISL97644IRZ-TK can handle a maximum current of 30mA per channel.

  5. Q: Can ISL97644IRZ-TK be used for dimming LED backlighting? A: Yes, ISL97644IRZ-TK supports PWM dimming control, allowing precise brightness adjustment of the LEDs.

  6. Q: Does ISL97644IRZ-TK have built-in thermal protection? A: Yes, ISL97644IRZ-TK has built-in thermal shutdown protection to prevent overheating.

  7. Q: Can ISL97644IRZ-TK operate in a wide temperature range? A: Yes, ISL97644IRZ-TK is designed to operate in a temperature range of -40°C to +85°C.

  8. Q: Is ISL97644IRZ-TK compatible with both analog and digital dimming control? A: Yes, ISL97644IRZ-TK supports both analog and digital dimming control methods.

  9. Q: Can ISL97644IRZ-TK be used in automotive applications? A: Yes, ISL97644IRZ-TK is suitable for automotive applications as it meets the necessary requirements.

  10. Q: What package does ISL97644IRZ-TK come in? A: ISL97644IRZ-TK is available in a 24-lead QFN package, making it compact and easy to integrate into designs.

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