ISSI, Integrated Silicon Solution Inc
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IS31FL3738-QFLS4-TR
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IS31FL3738-QFLS4-TR

Product Overview

Category

IS31FL3738-QFLS4-TR belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used for driving LEDs in various applications.

Characteristics

  • Package: QFN-24L
  • Essence: LED driver
  • Packaging/Quantity: Tape and reel, 3000 units per reel

Specifications

The IS31FL3738-QFLS4-TR has the following specifications:

  • Supply Voltage Range: 2.7V to 5.5V
  • Output Current: Up to 25mA per channel
  • Number of Channels: 18
  • Communication Interface: I2C
  • Dimming Control: 256 steps logarithmic PWM control
  • Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The pin configuration of IS31FL3738-QFLS4-TR is as follows:

  1. VDD
  2. SDA
  3. SCL
  4. GND
  5. OUT1
  6. OUT2
  7. OUT3
  8. OUT4
  9. OUT5
  10. OUT6
  11. OUT7
  12. OUT8
  13. OUT9
  14. OUT10
  15. OUT11
  16. OUT12
  17. OUT13
  18. OUT14
  19. OUT15
  20. OUT16
  21. OUT17
  22. OUT18
  23. NC
  24. NC

Functional Features

The IS31FL3738-QFLS4-TR offers the following functional features:

  • Individual LED control for each channel
  • Programmable current sinking capability
  • Built-in error detection and protection
  • Integrated power-on reset function
  • Low standby current consumption
  • Flexible dimming control options

Advantages and Disadvantages

Advantages: - High integration and compact size - Wide supply voltage range - Efficient power management - Error detection and protection features enhance reliability

Disadvantages: - Limited number of channels (18) - Requires I2C communication interface

Working Principles

The IS31FL3738-QFLS4-TR is designed to drive LEDs by providing a regulated current. It utilizes an I2C interface for communication with a microcontroller or other devices. The IC allows individual control of each LED channel, enabling precise brightness adjustment. The built-in error detection and protection features ensure safe operation and enhance system reliability.

Detailed Application Field Plans

The IS31FL3738-QFLS4-TR finds applications in various fields, including:

  1. Consumer electronics: LED displays, backlighting, and indicators in smartphones, tablets, and televisions.
  2. Automotive: Dashboard lighting, interior/exterior lighting, and instrument clusters.
  3. Industrial: Control panels, status indicators, and equipment displays.
  4. Gaming: Illumination effects in gaming peripherals and consoles.
  5. Lighting: Architectural lighting, decorative lighting, and signage.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the IS31FL3738-QFLS4-TR are:

  1. PCA9685 - 16-channel LED driver with I2C interface.
  2. TLC5940 - 16-channel LED driver with grayscale control.
  3. MAX7219 - LED display driver with serial interface.
  4. WS2812B - Addressable RGB LED driver with built-in controller.

These alternative models can be considered based on specific application requirements and design constraints.

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Listen Sie 10 häufige Fragen und Antworten im Zusammenhang mit der Anwendung von IS31FL3738-QFLS4-TR in technischen Lösungen auf

Sure! Here are 10 common questions and answers related to the application of IS31FL3738-QFLS4-TR in technical solutions:

  1. Q: What is IS31FL3738-QFLS4-TR? A: IS31FL3738-QFLS4-TR is a LED driver IC (Integrated Circuit) that can control up to 144 LEDs individually.

  2. Q: What is the maximum number of LEDs that can be controlled by IS31FL3738-QFLS4-TR? A: IS31FL3738-QFLS4-TR can control up to 144 LEDs.

  3. Q: What is the input voltage range for IS31FL3738-QFLS4-TR? A: The input voltage range for IS31FL3738-QFLS4-TR is typically between 2.7V and 5.5V.

  4. Q: Can IS31FL3738-QFLS4-TR support different LED colors? A: Yes, IS31FL3738-QFLS4-TR can support various LED colors, including RGB LEDs.

  5. Q: How can I communicate with IS31FL3738-QFLS4-TR? A: IS31FL3738-QFLS4-TR uses an I2C interface for communication with a microcontroller or other devices.

  6. Q: What is the maximum data transfer rate supported by IS31FL3738-QFLS4-TR? A: IS31FL3738-QFLS4-TR supports a maximum data transfer rate of 400 kHz.

  7. Q: Can IS31FL3738-QFLS4-TR dim the LEDs? A: Yes, IS31FL3738-QFLS4-TR can control the brightness of each LED individually, allowing for dimming effects.

  8. Q: Does IS31FL3738-QFLS4-TR have built-in current limiting? A: Yes, IS31FL3738-QFLS4-TR has built-in current limiting to protect the LEDs from excessive current.

  9. Q: Can I cascade multiple IS31FL3738-QFLS4-TR ICs together? A: Yes, you can cascade multiple IS31FL3738-QFLS4-TR ICs to control a larger number of LEDs.

  10. Q: What are some typical applications of IS31FL3738-QFLS4-TR? A: IS31FL3738-QFLS4-TR is commonly used in applications such as LED matrix displays, gaming peripherals, and decorative lighting solutions.

Please note that these answers are general and may vary depending on the specific implementation and requirements of your technical solution.