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TLC5949PWPR
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TLC5949PWPR

Introduction

The TLC5949PWPR is a versatile 16-channel, constant-current sink driver designed for use in applications requiring LED displays and signage. This integrated circuit offers precise control over LED brightness and color, making it an ideal choice for various lighting and display solutions.

Basic Information Overview

  • Category: Integrated Circuit
  • Use: LED Display and Signage
  • Characteristics: Constant-Current Sink Driver
  • Package: TSSOP
  • Essence: Precise LED Brightness Control
  • Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

  • Number of Channels: 16
  • Output Type: Constant Current
  • Interface: Serial
  • Supply Voltage: 3V to 5.5V
  • Operating Temperature: -40°C to 85°C
  • Package / Case: 28-TSSOP (0.173", 4.40mm Width)

Detailed Pin Configuration

The TLC5949PWPR features a 28-pin TSSOP package with the following pin configuration: 1. GND 2. OUT0 3. OUT1 4. OUT2 5. OUT3 6. OUT4 7. OUT5 8. OUT6 9. OUT7 10. OUT8 11. OUT9 12. OUT10 13. OUT11 14. OUT12 15. OUT13 16. OUT14 17. OUT15 18. VCC 19. SIN 20. SCLK 21. XLAT 22. BLANK 23. GND 24. DCPRG 25. VPRG 26. IREF 27. GND 28. GND

Functional Features

  • Precise LED Brightness Control
  • Serial Interface for Easy Integration
  • Daisy-Chainable for Scalability
  • Internal Oscillator for PWM Control

Advantages and Disadvantages

Advantages

  • High Precision LED Control
  • Flexible Serial Interface
  • Daisy-Chaining Capability
  • Wide Operating Voltage Range

Disadvantages

  • Requires External Resistors for Current Setting
  • Limited to Constant-Current Output

Working Principles

The TLC5949PWPR operates by receiving serial input data to control the brightness of connected LEDs. It utilizes an internal oscillator to generate PWM signals, providing accurate current sinking for each channel. The device's daisy-chain feature allows for seamless scalability in larger LED display applications.

Detailed Application Field Plans

The TLC5949PWPR finds extensive use in various applications, including: - LED Displays - LED Signage - Architectural Lighting - Entertainment Lighting - Automotive Lighting

Detailed and Complete Alternative Models

  • TLC5940: 16-Channel LED Driver with Gray Scale Control
  • TLC59282: 16-Channel Constant-Current LED Driver with Diagnostic Feedback

In conclusion, the TLC5949PWPR offers precise LED brightness control and is well-suited for a wide range of LED display and signage applications, making it a valuable component in the field of lighting and visual communication.

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Noem 10 veelgestelde vragen en antwoorden met betrekking tot de toepassing van TLC5949PWPR in technische oplossingen

  1. What is the TLC5949PWPR?

    • The TLC5949PWPR is a 16-channel, constant-current sink driver with grayscale PWM control. It is commonly used to drive LEDs in various applications.

  2. What is the maximum output current of the TLC5949PWPR?

    • The TLC5949PWPR can provide a maximum output current of 120 mA per channel.

  3. What is the input voltage range for the TLC5949PWPR?

    • The input voltage range for the TLC5949PWPR is typically between 3V and 5.5V.

  4. How many bits of grayscale control does the TLC5949PWPR offer?

    • The TLC5949PWPR provides 12 bits of grayscale control, allowing for 4096 levels of brightness per channel.

  5. Can the TLC5949PWPR be cascaded to drive more than 16 channels?

    • Yes, the TLC5949PWPR can be cascaded to drive multiple devices, allowing for control of more than 16 channels.

  6. What is the communication interface used by the TLC5949PWPR?

    • The TLC5949PWPR uses a serial interface (SPI) for communication with a microcontroller or other control device.

  7. What are some common applications for the TLC5949PWPR?

    • Common applications include LED displays, LED signage, architectural lighting, and automotive lighting.

  8. Does the TLC5949PWPR have built-in thermal shutdown protection?

    • Yes, the TLC5949PWPR includes built-in thermal shutdown protection to prevent damage from excessive heat.

  9. What is the typical power dissipation of the TLC5949PWPR?

    • The typical power dissipation of the TLC5949PWPR is around 100 mW per channel.

  10. Is there a reference design available for using the TLC5949PWPR in a specific application?

    • Yes, Texas Instruments provides reference designs and application notes for using the TLC5949PWPR in various technical solutions.