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ISL97649BIRZ-T
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ISL97649BIRZ-T

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 ISL97649BIRZ-T is a high-efficiency LED driver IC designed for driving multiple strings of LEDs in backlighting applications.

Packaging/Quantity: The ISL97649BIRZ-T is available in a QFN package and is typically sold in reels containing 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

Pin Configuration

The ISL97649BIRZ-T has a total of 24 pins. The pin configuration is as follows:

  1. VIN
  2. GND
  3. VCC
  4. EN
  5. DIM
  6. FB1
  7. FB2
  8. FB3
  9. FB4
  10. FB5
  11. FB6
  12. FB7
  13. FB8
  14. FB9
  15. FB10
  16. FB11
  17. FB12
  18. FB13
  19. FB14
  20. FB15
  21. FB16
  22. FB17
  23. FB18
  24. LX

Functional Features

  • Multiple string LED driver
  • Independent dimming control for each string
  • Over-temperature protection
  • Short-circuit protection
  • High efficiency conversion

Advantages and Disadvantages

Advantages: - High efficiency operation - Wide input voltage range allows for versatile applications - Independent dimming control for each LED string - Over-temperature and short-circuit protection ensure safety and reliability

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

Working Principles

The ISL97649BIRZ-T is a multi-string LED driver that utilizes pulse width modulation (PWM) to control the brightness of each LED string independently. It operates by converting the input voltage to a higher output voltage required for driving the LEDs. The IC incorporates various protection features such as over-temperature and short-circuit protection to ensure safe and reliable operation.

Detailed Application Field Plans

The ISL97649BIRZ-T is commonly used in backlighting applications, including: - LCD monitors - TVs - Automotive displays - Industrial displays - Signage

Alternative Models

Some alternative models to the ISL97649BIRZ-T include: - ISL97648BIRZ-T - ISL97650BIRZ-T - ISL97651BIRZ-T - ISL97652BIRZ-T

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

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Sebutkan 10 pertanyaan dan jawaban umum terkait penerapan ISL97649BIRZ-T dalam solusi teknis

Sure! Here are 10 common questions and answers related to the application of ISL97649BIRZ-T in technical solutions:

  1. Q: What is ISL97649BIRZ-T? A: ISL97649BIRZ-T is a high-efficiency, 6-channel LED driver designed for backlighting LCD displays.

  2. Q: What is the input voltage range of ISL97649BIRZ-T? A: The input voltage range of ISL97649BIRZ-T is typically between 4.5V and 26V.

  3. Q: How many channels does ISL97649BIRZ-T support? A: ISL97649BIRZ-T supports up to 6 channels, allowing control of multiple LEDs simultaneously.

  4. Q: What is the maximum current per channel that ISL97649BIRZ-T can handle? A: ISL97649BIRZ-T can handle a maximum current of 60mA per channel.

  5. Q: Does ISL97649BIRZ-T have built-in PWM dimming control? A: Yes, ISL97649BIRZ-T has built-in PWM dimming control, allowing precise brightness adjustment.

  6. Q: Can ISL97649BIRZ-T be used in automotive applications? A: Yes, ISL97649BIRZ-T is suitable for automotive applications as it operates over a wide temperature range and has built-in protection features.

  7. Q: What is the typical efficiency of ISL97649BIRZ-T? A: The typical efficiency of ISL97649BIRZ-T is around 90%, ensuring minimal power loss.

  8. Q: Is ISL97649BIRZ-T compatible with I2C interface? A: No, ISL97649BIRZ-T does not support I2C interface. It uses a simple logic-level PWM input for dimming control.

  9. Q: Can ISL97649BIRZ-T be used in parallel to drive more LEDs? A: Yes, multiple ISL97649BIRZ-T devices can be connected in parallel to drive additional LEDs, increasing the overall brightness.

  10. Q: What are the typical applications of ISL97649BIRZ-T? A: ISL97649BIRZ-T is commonly used in LCD backlighting for televisions, monitors, automotive displays, and industrial equipment.

Please note that these answers are general and may vary depending on the specific requirements and datasheet of ISL97649BIRZ-T.