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ISL97698IIZ-T
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ISL97698IIZ-T

Introduction

The ISL97698IIZ-T is a versatile integrated circuit belonging to the category of LED drivers. This device is commonly used in various applications such as backlighting for LCD displays, automotive lighting, and general illumination. The ISL97698IIZ-T is known for its high efficiency, compact package, and advanced features, making it a popular choice for driving LED lighting systems.

Basic Information Overview

  • Category: LED Driver IC
  • Use: Backlighting for LCD displays, automotive lighting, general illumination
  • Characteristics: High efficiency, compact package, advanced features
  • Package: 16 Ld TQFN (3x3mm)
  • Essence: Efficient LED driving solution
  • Packaging/Quantity: Tape and Reel (3000 units per reel)

Specifications

  • Input Voltage Range: 2.8V to 5.5V
  • Output Current: Up to 30mA per channel
  • Dimming Control: PWM and I2C
  • Operating Temperature Range: -40°C to 85°C
  • Efficiency: Up to 92%

Detailed Pin Configuration

The ISL97698IIZ-T features a 16-pin TQFN package with the following pin configuration: 1. VIN 2. GND 3. VOUT1 4. VOUT2 5. VOUT3 6. VOUT4 7. SDA 8. SCL 9. EN 10. PWM 11. GND 12. GND 13. NC 14. NC 15. NC 16. VCC

Functional Features

  • Integrated 4-channel LED driver
  • Wide input voltage range
  • High-efficiency step-up DC/DC converter
  • Flexible dimming control options
  • Overcurrent protection
  • Thermal shutdown protection

Advantages and Disadvantages

Advantages

  • High efficiency leading to energy savings
  • Compact package suitable for space-constrained designs
  • Versatile dimming control options for different applications
  • Integrated protection features enhance reliability

Disadvantages

  • Limited maximum output current per channel
  • Sensitive to ESD without proper handling

Working Principles

The ISL97698IIZ-T operates by converting the input voltage to a higher output voltage required for driving LED loads. It utilizes a step-up DC/DC converter to efficiently regulate the LED currents while providing flexible dimming control through PWM and I2C interfaces. The integrated protection features ensure safe operation under various conditions.

Detailed Application Field Plans

The ISL97698IIZ-T finds extensive application in the following fields: - LCD display backlighting in smartphones, tablets, and monitors - Automotive interior and exterior lighting - General LED illumination for residential and commercial spaces - Portable electronic devices requiring efficient LED drivers

Detailed and Complete Alternative Models

For those seeking alternative models, the following ICs can be considered: 1. ISL97671B: 6-channel LED driver with similar features 2. LT3956: High-power LED driver with wide input voltage range 3. AP8803: Cost-effective LED driver with integrated MOSFET

In conclusion, the ISL97698IIZ-T stands as a reliable and efficient LED driver IC suitable for a wide range of applications, offering advanced features and compact design. Its integration of protection features and flexible dimming control make it a preferred choice for designers aiming to achieve optimal LED performance.

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  1. What is the ISL97698IIZ-T?

    • The ISL97698IIZ-T is a highly integrated 8-channel LED driver with PWM dimming control, designed for backlighting LCD displays in applications such as TVs, monitors, and automotive infotainment systems.

  2. What is the input voltage range of the ISL97698IIZ-T?

    • The input voltage range of the ISL97698IIZ-T is typically from 4.5V to 26.5V, making it suitable for various power supply configurations.

  3. How many LEDs can the ISL97698IIZ-T drive?

    • The ISL97698IIZ-T can drive up to 8 channels of LEDs, providing flexibility for different display sizes and resolutions.

  4. What is the maximum current output per channel of the ISL97698IIZ-T?

    • The maximum current output per channel of the ISL97698IIZ-T is typically 120mA, allowing for precise control of LED brightness.

  5. Does the ISL97698IIZ-T support PWM dimming?

    • Yes, the ISL97698IIZ-T supports PWM dimming, enabling smooth and flicker-free brightness adjustment for the LEDs.

  6. What thermal protection features does the ISL97698IIZ-T have?

    • The ISL97698IIZ-T includes over-temperature protection and thermal shutdown features to ensure safe operation under varying conditions.

  7. Can the ISL97698IIZ-T be used in automotive applications?

    • Yes, the ISL97698IIZ-T is suitable for automotive applications, offering robust performance and reliability in harsh environments.

  8. What is the typical efficiency of the ISL97698IIZ-T?

    • The typical efficiency of the ISL97698IIZ-T is high, helping to minimize power consumption and maximize battery life in portable devices.

  9. Does the ISL97698IIZ-T require external compensation components?

    • No, the ISL97698IIZ-T features internal compensation, simplifying the design and reducing external component count.

  10. Is the ISL97698IIZ-T available in a compact package?

    • Yes, the ISL97698IIZ-T is available in a small footprint package, making it suitable for space-constrained designs.