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TLC5927IPWPR
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TLC5927IPWPR

Introduction

The TLC5927IPWPR is a high-performance, 16-channel constant-current LED sink driver designed for use in various display and lighting applications. This integrated circuit offers precise current control and grayscale PWM dimming capabilities, making it suitable for a wide range of LED-based products.

Basic Information Overview

  • Category: LED Driver IC
  • Use: Driving and controlling LED displays and lighting systems
  • Characteristics: Precise current control, grayscale PWM dimming, daisy-chainable, thermal shutdown protection
  • Package: TSSOP-24
  • Essence: High-performance LED driver with advanced dimming capabilities
  • Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

  • Supply Voltage: 3V to 5.5V
  • Output Current: Up to 45mA per channel
  • Dimming Control: 16-bit grayscale PWM
  • Operating Temperature Range: -40°C to 85°C
  • Thermal Shutdown: Yes

Detailed Pin Configuration

The TLC5927IPWPR features a TSSOP-24 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. SOUT 20. SIN 21. XLAT 22. BLANK 23. GND 24. GND

Functional Features

  • Precise Current Control: Allows for accurate brightness matching across multiple LEDs.
  • Grayscale PWM Dimming: Enables smooth and flicker-free dimming of LED outputs.
  • Daisy-Chainable: Simplifies the design of large LED arrays by allowing multiple TLC5927IPWPR devices to be connected in series.
  • Thermal Shutdown Protection: Safeguards the device from overheating, ensuring reliable operation.

Advantages and Disadvantages

Advantages

  • High precision in current control
  • Advanced dimming capabilities
  • Daisy-chainable for scalability
  • Built-in thermal protection

Disadvantages

  • Requires careful PCB layout for optimal performance
  • Limited to 16 channels per device

Working Principles

The TLC5927IPWPR operates by receiving digital input signals that control the current sinking of each LED channel. The integrated grayscale PWM dimming feature modulates the output current to achieve varying levels of brightness. The device's internal thermal shutdown mechanism ensures safe operation under all conditions.

Detailed Application Field Plans

The TLC5927IPWPR finds application in various fields, including: - LED Displays: Used to drive LED matrices in indoor and outdoor signage, scoreboards, and video walls. - Architectural Lighting: Employed in decorative and accent lighting fixtures for dynamic color and brightness control. - Automotive Lighting: Integrated into automotive interior and exterior lighting systems for customizable illumination effects.

Detailed and Complete Alternative Models

  • TLC5926: 16-channel LED driver with similar features but without grayscale PWM dimming.
  • TLC5940: 16-channel LED driver with 12-bit grayscale PWM control and serial interface.

In conclusion, the TLC5927IPWPR offers a comprehensive solution for driving and controlling LED displays and lighting systems with its precise current control, advanced dimming capabilities, and built-in protection features.

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기술 솔루션에 TLC5927IPWPR 적용과 관련된 10가지 일반적인 질문과 답변을 나열하세요.

  1. What is TLC5927IPWPR?

    • The TLC5927IPWPR is a 16-channel constant-current LED sink driver with a programmable PWM control.

  2. What is the maximum output current of TLC5927IPWPR?

    • The TLC5927IPWPR can provide a maximum output current of 120 mA per channel.

  3. What is the input voltage range for TLC5927IPWPR?

    • The input voltage range for TLC5927IPWPR is 3 V to 5.5 V.

  4. How many bits are used for grayscale control in TLC5927IPWPR?

    • The TLC5927IPWPR uses 12-bit grayscale control for each LED channel.

  5. Can TLC5927IPWPR be cascaded to drive more than 16 channels?

    • Yes, TLC5927IPWPR can be cascaded to drive more than 16 channels by connecting the serial data output of one TLC5927IPWPR to the serial data input of another.

  6. What is the maximum clock frequency supported by TLC5927IPWPR?

    • The TLC5927IPWPR supports a maximum clock frequency of 30 MHz.

  7. Does TLC5927IPWPR have built-in thermal shutdown protection?

    • Yes, TLC5927IPWPR has built-in thermal shutdown protection to prevent damage from excessive heat.

  8. What is the typical application of TLC5927IPWPR?

    • The TLC5927IPWPR is commonly used for driving LED displays, signage, and lighting applications.

  9. Is TLC5927IPWPR compatible with microcontrollers?

    • Yes, TLC5927IPWPR is compatible with various microcontrollers and can be easily controlled through SPI or other serial interfaces.

  10. What are the key features of TLC5927IPWPR?

    • The key features of TLC5927IPWPR include 16-channel constant-current sink drivers, 12-bit grayscale control, thermal shutdown protection, and cascading capability for driving multiple channels.