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ISL97653AIRZ
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ISL97653AIRZ

Product Overview

Category: Integrated Circuit (IC)

Use: LED Driver

Characteristics: - High efficiency - Wide input voltage range - Dimming control - Over-temperature protection - Short-circuit protection

Package: QFN (Quad Flat No-leads) package

Essence: The ISL97653AIRZ is a high-efficiency LED driver IC designed for driving multiple strings of LEDs in backlighting applications.

Packaging/Quantity: The ISL97653AIRZ is available in a QFN package and is typically sold in reels of 2500 units.

Specifications

  • Input Voltage Range: 4.5V to 26V
  • Output Voltage Range: Up to 40V
  • Maximum Output Current: 1.2A per channel
  • Dimming Control: PWM (Pulse Width Modulation)
  • Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The ISL97653AIRZ has a total of 24 pins, which are assigned as follows:

  1. VIN1: Input voltage for channel 1
  2. VIN2: Input voltage for channel 2
  3. VIN3: Input voltage for channel 3
  4. GND: Ground
  5. VDD: Power supply for internal circuitry
  6. EN: Enable pin for turning on/off the device
  7. DIM: Dimming control input
  8. FB1: Feedback pin for channel 1
  9. FB2: Feedback pin for channel 2
  10. FB3: Feedback pin for channel 3
  11. ISET1: Current set pin for channel 1
  12. ISET2: Current set pin for channel 2
  13. ISET3: Current set pin for channel 3
  14. VOUT1: Output voltage for channel 1
  15. VOUT2: Output voltage for channel 2
  16. VOUT3: Output voltage for channel 3
  17. GND: Ground
  18. GND: Ground
  19. GND: Ground
  20. GND: Ground
  21. GND: Ground
  22. GND: Ground
  23. GND: Ground
  24. GND: Ground

Functional Features

  • High efficiency conversion of input voltage to output voltage for driving LEDs
  • Dimming control allows adjusting the brightness of the LEDs
  • Over-temperature protection prevents damage to the IC during high-temperature conditions
  • Short-circuit protection safeguards against potential short circuits in the LED strings

Advantages and Disadvantages

Advantages: - High efficiency results in lower power consumption - Wide input voltage range allows compatibility with various power sources - Dimming control provides flexibility in adjusting brightness levels - Over-temperature and short-circuit protection enhance reliability

Disadvantages: - Limited maximum output current per channel (1.2A)

Working Principles

The ISL97653AIRZ operates by converting the input voltage to a higher output voltage suitable for driving multiple strings of LEDs. It utilizes pulse width modulation (PWM) dimming control to adjust the brightness of the LEDs. The IC incorporates over-temperature and short-circuit protection mechanisms to ensure safe operation.

Detailed Application Field Plans

The ISL97653AIRZ is commonly used in various backlighting applications, including: - LCD monitors - TVs - Automotive displays - Industrial displays - Signage

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to the ISL97653AIRZ are: - LT3763 - TPS61165 - MAX16834 - LM3409

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

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Énumérez 10 questions et réponses courantes liées à l'application de ISL97653AIRZ dans les solutions techniques

Sure! Here are 10 common questions and answers related to the application of ISL97653AIRZ in technical solutions:

  1. Q: What is ISL97653AIRZ? A: ISL97653AIRZ is a high-efficiency, 4-channel LED driver IC designed for driving multiple strings of LEDs in various applications.

  2. Q: What is the input voltage range supported by ISL97653AIRZ? A: The input voltage range supported by ISL97653AIRZ is typically between 4.5V and 26V.

  3. Q: How many channels does ISL97653AIRZ support? A: ISL97653AIRZ supports up to 4 channels, allowing you to drive multiple strings of LEDs independently.

  4. Q: What is the maximum current per channel that ISL97653AIRZ can handle? A: ISL97653AIRZ can handle a maximum current of 60mA per channel.

  5. Q: Can ISL97653AIRZ be used for dimming LEDs? A: Yes, ISL97653AIRZ supports PWM (Pulse Width Modulation) dimming, allowing you to control the brightness of the LEDs.

  6. Q: Does ISL97653AIRZ have any built-in protection features? A: Yes, ISL97653AIRZ includes over-temperature protection, open/shorted LED detection, and thermal shutdown features for enhanced safety.

  7. Q: What is the typical efficiency of ISL97653AIRZ? A: The typical efficiency of ISL97653AIRZ is around 90%, making it highly efficient in driving LEDs.

  8. Q: Can ISL97653AIRZ be used in automotive applications? A: Yes, ISL97653AIRZ is suitable for automotive applications as it can operate within the required temperature range and has built-in protection features.

  9. Q: Does ISL97653AIRZ require any external components for operation? A: Yes, ISL97653AIRZ requires external resistors to set the LED current and capacitors for stability.

  10. Q: What package does ISL97653AIRZ come in? A: ISL97653AIRZ is available in a compact 16-lead QFN (Quad Flat No-Lead) package for easy integration into your design.

Please note that the answers provided here are general and may vary depending on the specific application and requirements. It's always recommended to refer to the datasheet and consult with the manufacturer for detailed information.