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TLC5920DLG4
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TLC5920DLG4

Product Overview

Category

TLC5920DLG4 belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used for driving LEDs (Light Emitting Diodes) in various applications.

Characteristics

  • TLC5920DLG4 is a high-performance LED driver IC.
  • It can control up to 16 individual LEDs.
  • The IC supports both dot correction and grayscale PWM (Pulse Width Modulation) dimming techniques.
  • It operates with a wide supply voltage range, typically from 3V to 5.5V.
  • The TLC5920DLG4 has a built-in thermal shutdown protection feature.

Package

The TLC5920DLG4 is available in a small outline package (SOP) with 24 pins.

Essence

The essence of TLC5920DLG4 lies in its ability to efficiently drive multiple LEDs, providing precise control over their brightness levels.

Packaging/Quantity

The IC is typically sold in reels or tubes, with each reel/tube containing a specific quantity of TLC5920DLG4 ICs. The exact quantity may vary depending on the supplier.

Specifications

  • Supply Voltage: 3V to 5.5V
  • Maximum Output Current per Channel: 120mA
  • Number of Channels: 16
  • Operating Temperature Range: -40°C to +85°C
  • Package Type: SOP-24

Detailed Pin Configuration

The TLC5920DLG4 IC has a total of 24 pins, which are assigned as follows:

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

Functional Features

  • Precise control over LED brightness levels using dot correction and grayscale PWM dimming techniques.
  • Built-in thermal shutdown protection to prevent overheating.
  • Serial data input for easy integration with microcontrollers or other digital systems.
  • Latch control input for synchronized updating of LED outputs.
  • Blanking control input for turning off all LED outputs simultaneously.

Advantages and Disadvantages

Advantages

  • High-performance LED driver with support for up to 16 LEDs.
  • Wide supply voltage range allows for flexibility in different applications.
  • Dot correction and grayscale PWM dimming techniques enable precise control over LED brightness.
  • Built-in thermal shutdown protection ensures safe operation.

Disadvantages

  • Limited number of channels (16) may not be sufficient for certain applications requiring a higher number of LEDs.
  • The SOP package may not be suitable for applications with space constraints.

Working Principles

The TLC5920DLG4 operates by receiving serial data input, which contains information about the desired brightness levels for each LED. This data is then processed and converted into appropriate current levels to drive the LEDs. The dot correction and grayscale PWM dimming techniques ensure accurate control over LED brightness, allowing for smooth transitions and precise illumination.

Detailed Application Field Plans

The TLC5920DLG4 is widely used in various applications that require LED driving, including but not limited to: - LED displays - Automotive lighting systems - Backlighting for LCD panels - Decorative lighting - Signage and advertising displays

Detailed and Complete Alternative Models

Some alternative models to TLC5920DLG4 that offer similar functionality include: - MAX7219 - TLC5940 - TLC59711 - IS31FL3731

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

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Senaraikan 10 soalan dan jawapan biasa yang berkaitan dengan aplikasi TLC5920DLG4 dalam penyelesaian teknikal

Sure! Here are 10 common questions and answers related to the application of TLC5920DLG4 in technical solutions:

  1. Q: What is TLC5920DLG4? A: TLC5920DLG4 is a 16-channel constant current LED driver that can be used to control LEDs in various applications.

  2. Q: What is the maximum output current of TLC5920DLG4? A: The TLC5920DLG4 can provide a maximum output current of 120 mA per channel.

  3. Q: Can TLC5920DLG4 be used with both common anode and common cathode LEDs? A: Yes, TLC5920DLG4 can be used with both common anode and common cathode LEDs.

  4. Q: How many TLC5920DLG4 devices can be cascaded together? A: Multiple TLC5920DLG4 devices can be cascaded together to control a larger number of LEDs. Up to 8 devices can be cascaded using the serial data input/output pins.

  5. Q: What is the communication interface used by TLC5920DLG4? A: TLC5920DLG4 uses a simple serial interface called Serial Data Interface (SDI) for communication.

  6. Q: Can TLC5920DLG4 dim the LEDs? A: Yes, TLC5920DLG4 supports LED dimming through pulse width modulation (PWM) control.

  7. Q: What is the supply voltage range for TLC5920DLG4? A: The supply voltage range for TLC5920DLG4 is typically between 3 V and 5.5 V.

  8. Q: Does TLC5920DLG4 have built-in thermal shutdown protection? A: Yes, TLC5920DLG4 has built-in thermal shutdown protection to prevent overheating.

  9. Q: Can TLC5920DLG4 be used in automotive applications? A: Yes, TLC5920DLG4 is suitable for automotive applications as it can operate over a wide temperature range and has ESD protection.

  10. Q: Are there any evaluation boards or reference designs available for TLC5920DLG4? A: Yes, Texas Instruments provides evaluation boards and reference designs that can help in designing applications using TLC5920DLG4.

Please note that these answers are general and may vary depending on the specific requirements and datasheet of TLC5920DLG4.