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ISL97645AIRZ
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ISL97645AIRZ

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)

Essence: The ISL97645AIRZ is a high-efficiency LED driver IC designed for driving multiple strings of LEDs in backlighting applications.

Packaging/Quantity: The ISL97645AIRZ 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 ISL97645AIRZ has a total of 24 pins. Here is the detailed pin configuration:

  1. VIN: Input voltage
  2. GND: Ground
  3. VCC: Power supply voltage
  4. EN: Enable pin
  5. DIM: Dimming control input
  6. FB1: Feedback pin for channel 1
  7. FB2: Feedback pin for channel 2
  8. FB3: Feedback pin for channel 3
  9. FB4: Feedback pin for channel 4
  10. FB5: Feedback pin for channel 5
  11. FB6: Feedback pin for channel 6
  12. FB7: Feedback pin for channel 7
  13. FB8: Feedback pin for channel 8
  14. FB9: Feedback pin for channel 9
  15. FB10: Feedback pin for channel 10
  16. FB11: Feedback pin for channel 11
  17. FB12: Feedback pin for channel 12
  18. FB13: Feedback pin for channel 13
  19. FB14: Feedback pin for channel 14
  20. FB15: Feedback pin for channel 15
  21. FB16: Feedback pin for channel 16
  22. FB17: Feedback pin for channel 17
  23. FB18: Feedback pin for channel 18
  24. FB19: Feedback pin for channel 19

Functional Features

  • High-efficiency LED driver with multiple channel outputs
  • Wide input voltage range allows for versatile applications
  • Dimming control through PWM signal
  • Over-temperature protection ensures safe operation
  • Short-circuit protection prevents damage to the LEDs and the driver

Advantages and Disadvantages

Advantages: - High efficiency leads to energy savings - Wide input voltage range provides flexibility in design - Dimming control allows for brightness adjustment - Over-temperature and short-circuit protection enhance reliability

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

Working Principles

The ISL97645AIRZ is designed to drive multiple strings of LEDs in backlighting applications. It operates by converting the input voltage to a higher output voltage required for driving the LEDs. The dimming control feature allows for adjusting the brightness of the LEDs using a PWM signal. The IC also incorporates over-temperature and short-circuit protection mechanisms to ensure safe and reliable operation.

Detailed Application Field Plans

The ISL97645AIRZ LED driver IC is commonly used in various applications, including: - LCD backlighting in televisions and monitors - Automotive interior and exterior lighting - Signage and display lighting - General illumination in residential and commercial buildings - Industrial lighting

Detailed and Complete Alternative Models

Some alternative models to the ISL97645AIRZ LED driver IC include: - LT3763 - TPS92661 - MAX16834 - LM3409 - CAT4101

These alternative models offer similar functionality and can be considered as substitutes depending on specific requirements and design considerations.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de ISL97645AIRZ en soluciones técnicas

Sure! Here are 10 common questions and answers related to the application of ISL97645AIRZ in technical solutions:

  1. Q: What is ISL97645AIRZ? A: ISL97645AIRZ is a highly integrated LED driver IC designed for driving up to 45 LEDs in series.

  2. Q: What is the input voltage range supported by ISL97645AIRZ? A: The input voltage range supported by ISL97645AIRZ is typically between 4.5V and 26V.

  3. Q: How many channels does ISL97645AIRZ support? A: ISL97645AIRZ supports three independent channels, allowing control of up to three different sets of LEDs.

  4. Q: Can ISL97645AIRZ be used for dimming LEDs? A: Yes, ISL97645AIRZ provides PWM dimming control for each channel, allowing precise brightness adjustment.

  5. Q: What is the maximum current per channel that ISL97645AIRZ can handle? A: ISL97645AIRZ can handle a maximum current of 30mA per channel.

  6. Q: Does ISL97645AIRZ have built-in thermal protection? A: Yes, ISL97645AIRZ has built-in thermal shutdown protection to prevent overheating.

  7. Q: Can ISL97645AIRZ operate in a wide temperature range? A: Yes, ISL97645AIRZ is designed to operate in a temperature range of -40°C to +85°C.

  8. Q: Is ISL97645AIRZ compatible with both analog and digital dimming signals? A: Yes, ISL97645AIRZ supports both analog and digital dimming signals, providing flexibility in control options.

  9. Q: Can ISL97645AIRZ be used in automotive applications? A: Yes, ISL97645AIRZ is suitable for automotive applications and meets the necessary requirements.

  10. Q: What package does ISL97645AIRZ come in? A: ISL97645AIRZ is available in a compact 16-lead QFN package, making it suitable for space-constrained designs.

Please note that these answers are general and may vary depending on the specific datasheet and application requirements of ISL97645AIRZ.