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TLC5927IDWR
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TLC5927IDWR

Product Overview

The TLC5927IDWR belongs to the category of LED drivers and is commonly used for controlling and driving LED displays. This integrated circuit offers characteristics such as high efficiency, precise current control, and compatibility with various LED types. The package type is a 24-pin SOIC (Small Outline Integrated Circuit), and it is available in tape and reel packaging with a quantity of 2500 units per reel.

Specifications

  • Supply Voltage: 3V to 5.5V
  • Number of Channels: 27
  • Output Current: Up to 45mA per channel
  • Interface: Serial
  • Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The TLC5927IDWR features a detailed pin configuration with 24 pins, including power supply pins, serial data input/output pins, and LED output pins. The pinout diagram provides a clear understanding of the connectivity and functionality of each pin.

Functional Features

  • Precise Current Control: The TLC5927IDWR allows for accurate current control for each LED channel, ensuring consistent brightness levels.
  • Daisy-Chainable: Multiple TLC5927IDWR devices can be daisy-chained for controlling larger LED displays without the need for additional microcontroller pins.
  • PWM Control: The integrated PWM control enables smooth dimming and color mixing for LED applications.

Advantages and Disadvantages

Advantages

  • High Efficiency: The TLC5927IDWR offers high efficiency in driving LED displays, resulting in lower power consumption.
  • Compatibility: It is compatible with various LED types, making it versatile for different display applications.

Disadvantages

  • Limited Output Current: The maximum output current per channel is 45mA, which may be insufficient for certain high-power LED applications.

Working Principles

The TLC5927IDWR operates by receiving serial data input and converting it into individual channel outputs to drive the connected LEDs. The integrated current sinks ensure precise current regulation, while the PWM control allows for dimming and color control.

Detailed Application Field Plans

The TLC5927IDWR finds extensive application in various fields, including: - LED Displays: Used for controlling LED matrix displays, signage, and decorative lighting. - Automotive Lighting: Enables precise control and dimming of LED lights in automotive applications. - Consumer Electronics: Integrated into products such as smart home devices, wearables, and digital signage for efficient LED control.

Detailed and Complete Alternative Models

  • TLC5947: Offers similar functionality with 24 channels and higher output current capability.
  • MAX7219: Provides LED driver functionality with additional segment drivers for alphanumeric displays.

In conclusion, the TLC5927IDWR is a versatile LED driver IC with precise current control and compatibility with various LED types, making it suitable for a wide range of display and lighting applications.

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10個與TLC5927IDWR在技術方案中應用相關的常見問題與解答

  1. What is TLC5927IDWR?

    • TLC5927IDWR is a 16-channel constant-current LED sink driver with an I2C interface, designed for driving LEDs in various display applications.

  2. What is the maximum output current of TLC5927IDWR?

    • The TLC5927IDWR can provide a maximum output current of 60 mA per channel.

  3. What is the supply voltage range for TLC5927IDWR?

    • The supply voltage range for TLC5927IDWR is 3 V to 5.5 V.

  4. How many bits of grayscale control does TLC5927IDWR support?

    • TLC5927IDWR supports 8 bits of grayscale control, allowing for 256 levels of brightness per LED channel.

  5. Can TLC5927IDWR be cascaded to drive more than 16 channels of LEDs?

    • Yes, TLC5927IDWR can be cascaded to drive multiple devices, enabling control of more than 16 channels of LEDs.

  6. What is the communication interface used by TLC5927IDWR?

    • TLC5927IDWR utilizes an I2C serial interface for communication with a microcontroller or other control device.

  7. Does TLC5927IDWR include thermal shutdown protection?

    • Yes, TLC5927IDWR includes thermal shutdown protection to prevent damage from excessive heat.

  8. What is the typical operating frequency of TLC5927IDWR?

    • The typical operating frequency of TLC5927IDWR is 100 kHz for the I2C interface.

  9. Can TLC5927IDWR be used in automotive applications?

    • Yes, TLC5927IDWR is suitable for automotive applications, as it can operate within the required voltage range and has built-in ESD protection.

  10. Is TLC5927IDWR suitable for dimming and color mixing in LED lighting applications?

    • Yes, TLC5927IDWR is well-suited for dimming and color mixing in LED lighting applications due to its grayscale control and individual channel PWM control.

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