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TLC5928PW
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TLC5928PW

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: LED Driver
  • Characteristics:
    • High current sink capability
    • Serial data input
    • Constant current output
    • Daisy-chainable
  • Package: TSSOP-24
  • Essence: The TLC5928PW is a high-current LED driver IC designed to control and drive LEDs in various applications.
  • Packaging/Quantity: The TLC5928PW is available in a TSSOP-24 package and is typically sold in reels of 2500 units.

Specifications

  • Supply Voltage: 3V to 5.5V
  • Output Current: Up to 120mA per channel
  • Number of Channels: 16
  • Serial Data Interface: SPI-compatible
  • Operating Temperature Range: -40°C to +85°C

Pin Configuration

The TLC5928PW has a total of 24 pins, which are assigned as follows:

  1. GND (Ground)
  2. SIN (Serial Data Input)
  3. SCLK (Serial Clock Input)
  4. XLAT (Latch Clock Input)
  5. BLANK (Blanking Control Input)
  6. VCC (Supply Voltage)
  7. OUT0 (Channel 0 Output)
  8. OUT1 (Channel 1 Output)
  9. OUT2 (Channel 2 Output)
  10. OUT3 (Channel 3 Output)
  11. OUT4 (Channel 4 Output)
  12. OUT5 (Channel 5 Output)
  13. OUT6 (Channel 6 Output)
  14. OUT7 (Channel 7 Output)
  15. OUT8 (Channel 8 Output)
  16. OUT9 (Channel 9 Output)
  17. OUT10 (Channel 10 Output)
  18. OUT11 (Channel 11 Output)
  19. OUT12 (Channel 12 Output)
  20. OUT13 (Channel 13 Output)
  21. OUT14 (Channel 14 Output)
  22. OUT15 (Channel 15 Output)
  23. VCC (Supply Voltage)
  24. GND (Ground)

Functional Features

  • High current sink capability allows driving high-power LEDs directly.
  • Serial data input enables easy control and configuration.
  • Constant current output ensures consistent brightness across all connected LEDs.
  • Daisy-chainable feature simplifies the connection of multiple TLC5928PW devices.

Advantages and Disadvantages

Advantages: - High current sink capability for driving powerful LEDs. - Serial data interface provides flexibility in control. - Constant current output ensures uniform brightness. - Daisy-chainable feature simplifies system design.

Disadvantages: - Limited to driving LEDs, not suitable for other types of loads. - Requires an external microcontroller or host device for control.

Working Principles

The TLC5928PW operates by receiving serial data through the SIN pin, which is then shifted into its internal shift register on each rising edge of the SCLK signal. The XLAT pin latches the data from the shift register to the output channels, while the BLANK pin controls the output state. The IC generates a constant current output for each channel, allowing precise control of LED brightness.

Detailed Application Field Plans

The TLC5928PW is widely used in various applications that require LED driving, such as:

  1. LED displays
  2. Automotive lighting
  3. Backlighting systems
  4. Decorative lighting
  5. Signage and advertising displays
  6. Architectural lighting

Detailed and Complete Alternative Models

Some alternative models to the TLC5928PW include:

  1. TLC5940PW: Similar LED driver IC with 16 channels and additional grayscale control.
  2. MAX7219CNG: LED display driver IC with serial interface and multiplexing capabilities.
  3. TLC59711PW: High-current LED driver IC with 12 channels and individual PWM control.

These alternative models offer different features and specifications, providing options for various LED driving applications.

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技術ソリューションにおける TLC5928PW の適用に関連する 10 件の一般的な質問と回答をリストします。

Sure! Here are 10 common questions and answers related to the application of TLC5928PW in technical solutions:

  1. Q: What is TLC5928PW? A: TLC5928PW is a high-current LED driver IC that can control up to 16 channels of LEDs.

  2. Q: What is the maximum current per channel that TLC5928PW can handle? A: TLC5928PW can handle a maximum current of 120 mA per channel.

  3. Q: Can TLC5928PW be used for driving RGB LEDs? A: Yes, TLC5928PW can be used to drive RGB LEDs by connecting each color channel to separate output channels.

  4. Q: How many TLC5928PW devices can be cascaded together? A: Multiple TLC5928PW devices can be cascaded together to control a larger number of LEDs. The exact number depends on the system requirements and communication protocol used.

  5. Q: What is the input voltage range for TLC5928PW? A: The input voltage range for TLC5928PW is typically between 3V and 5.5V.

  6. Q: Does TLC5928PW support dimming control? A: Yes, TLC5928PW supports global brightness control through a PWM signal input.

  7. Q: Can TLC5928PW be used in automotive applications? A: Yes, TLC5928PW is suitable for automotive applications as it can operate over a wide temperature range and has built-in protection features.

  8. Q: How can TLC5928PW be controlled? A: TLC5928PW can be controlled using a microcontroller or any other digital device capable of generating the required control signals.

  9. Q: What is the maximum clock frequency supported by TLC5928PW? A: The maximum clock frequency supported by TLC5928PW is typically 30 MHz.

  10. Q: Are there any evaluation boards or reference designs available for TLC5928PW? A: Yes, Texas Instruments provides evaluation boards and reference designs that can help in the development and testing of TLC5928PW-based solutions.

Please note that these answers are general and may vary depending on specific application requirements and the manufacturer's documentation.