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TLC5927IDBQR
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TLC5927IDBQR

Product Overview

Category

TLC5927IDBQR belongs to the category of integrated circuits (ICs).

Use

This product is commonly used for driving LED displays and lighting applications.

Characteristics

  • TLC5927IDBQR is a high-performance, 16-channel constant current sink driver.
  • It operates with a wide supply voltage range of 3 V to 5.5 V.
  • The device can sink up to 120 mA per channel, making it suitable for driving medium to large-sized LED displays.
  • It offers excellent accuracy and uniformity in current sinking across all channels.
  • The TLC5927IDBQR features a built-in thermal shutdown protection mechanism to prevent overheating.

Package

The TLC5927IDBQR is available in a small-outline package (DBQ) with a thermal pad for enhanced heat dissipation.

Essence

The essence of TLC5927IDBQR lies in its ability to efficiently drive LED displays by providing precise and uniform current sinking across multiple channels.

Packaging/Quantity

This product is typically packaged in reels, containing a quantity of 2500 units per reel.

Specifications

  • Supply Voltage Range: 3 V to 5.5 V
  • Sink Current per Channel: Up to 120 mA
  • Number of Channels: 16
  • Thermal Shutdown Protection: Yes
  • Package Type: DBQ

Detailed Pin Configuration

The TLC5927IDBQR has a total of 24 pins. The pin configuration is as follows:

  1. OUT0
  2. OUT1
  3. OUT2
  4. OUT3
  5. OUT4
  6. OUT5
  7. OUT6
  8. OUT7
  9. OUT8
  10. OUT9
  11. OUT10
  12. OUT11
  13. OUT12
  14. OUT13
  15. OUT14
  16. OUT15
  17. GND
  18. VCC
  19. SDA
  20. SCL
  21. OE
  22. BLANK
  23. GND
  24. THERM

Functional Features

  • Precise and uniform current sinking across all channels.
  • Wide supply voltage range allows for versatile applications.
  • Built-in thermal shutdown protection prevents overheating.
  • High sink current capability enables driving medium to large-sized LED displays.

Advantages and Disadvantages

Advantages

  • Accurate and uniform current sinking.
  • Wide supply voltage range.
  • Thermal shutdown protection.
  • High sink current per channel.

Disadvantages

  • Limited number of channels (16).
  • Requires external control signals for operation.

Working Principles

The TLC5927IDBQR operates by receiving control signals through the SDA (Serial Data) and SCL (Serial Clock) pins. These signals determine the desired current sinking levels for each channel. The device then regulates the current flowing through the LED display, ensuring consistent brightness across all LEDs.

Detailed Application Field Plans

The TLC5927IDBQR finds extensive application in various fields, including: 1. LED signage and displays 2. Automotive lighting systems 3. Backlighting for LCD panels 4. Architectural lighting 5. Entertainment lighting

Detailed and Complete Alternative Models

  1. TLC5926IDBQR: Similar to TLC5927IDBQR but with 8 channels instead of 16.
  2. TLC5940IDBQR: Offers 16 channels with additional grayscale control for enhanced LED dimming capabilities.
  3. MAX7219CNG+: Provides multiplexing capabilities for driving larger LED matrices.

These alternative models offer similar functionality and can be considered based on specific project requirements.

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Liste 10 perguntas e respostas comuns relacionadas à aplicação de TLC5927IDBQR em soluções técnicas

Sure! Here are 10 common questions and answers related to the application of TLC5927IDBQR in technical solutions:

  1. Q: What is TLC5927IDBQR? A: TLC5927IDBQR is a high-performance, 16-channel constant current LED driver with a built-in shift register and data latches.

  2. Q: What is the maximum output current of TLC5927IDBQR? A: The maximum output current per channel of TLC5927IDBQR is 120 mA.

  3. Q: Can TLC5927IDBQR be used for driving RGB LEDs? A: Yes, TLC5927IDBQR can be used to drive RGB LEDs by controlling the individual channels for each color.

  4. Q: How many TLC5927IDBQR devices can be daisy-chained together? A: Multiple TLC5927IDBQR devices can be daisy-chained together to control a larger number of LEDs. The exact number depends on the system requirements and the available microcontroller pins.

  5. Q: Does TLC5927IDBQR support PWM dimming? A: Yes, TLC5927IDBQR supports PWM (Pulse Width Modulation) dimming, allowing precise control over the brightness of the LEDs.

  6. Q: What is the supply voltage range for TLC5927IDBQR? A: The supply voltage range for TLC5927IDBQR is typically between 3V and 5.5V.

  7. Q: Can TLC5927IDBQR be used in automotive applications? A: Yes, TLC5927IDBQR is suitable for automotive applications as it can withstand the required temperature and voltage ranges.

  8. Q: Is there any thermal protection feature in TLC5927IDBQR? A: Yes, TLC5927IDBQR has built-in thermal shutdown protection to prevent damage due to excessive heat.

  9. Q: Can TLC5927IDBQR be controlled using a microcontroller? A: Yes, TLC5927IDBQR can be easily controlled using a microcontroller through a serial interface such as SPI or I2C.

  10. Q: What is the typical operating frequency for TLC5927IDBQR? A: The typical operating frequency for TLC5927IDBQR is in the range of a few kilohertz to several megahertz, depending on the system requirements and communication protocol used.

Please note that these answers are general and may vary based on specific application requirements.