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TLC5917IDRG4
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TLC5917IDRG4

Product Overview

Category

TLC5917IDRG4 belongs to the category of integrated circuits (ICs).

Use

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

Characteristics

  • TLC5917IDRG4 is a 16-channel constant-current sink driver.
  • It operates with a supply voltage ranging from 3 V to 5.5 V.
  • The device can sink up to 120 mA per channel, making it suitable for high-power LED applications.
  • It offers a wide dimming range and supports both dot correction and global brightness control.
  • The TLC5917IDRG4 features thermal shutdown protection to prevent damage due to excessive heat.

Package

The TLC5917IDRG4 is available in a small outline package (SOIC) with 24 pins.

Essence

The essence of TLC5917IDRG4 lies in its ability to efficiently drive multiple LEDs with constant current, ensuring uniform brightness and accurate color reproduction.

Packaging/Quantity

This product is typically sold in reels or tubes containing a specified quantity of ICs, such as 250 or 1000 units per reel.

Specifications

  • Supply Voltage: 3 V to 5.5 V
  • Number of Channels: 16
  • Maximum Current per Channel: 120 mA
  • Dimming Range: Wide
  • Package Type: SOIC-24

Detailed Pin Configuration

The TLC5917IDRG4 has 24 pins, each serving a specific function. Here is the detailed pin configuration:

  1. GND - Ground
  2. OUT0 - Output Channel 0
  3. OUT1 - Output Channel 1
  4. OUT2 - Output Channel 2
  5. OUT3 - Output Channel 3
  6. OUT4 - Output Channel 4
  7. OUT5 - Output Channel 5
  8. OUT6 - Output Channel 6
  9. OUT7 - Output Channel 7
  10. OUT8 - Output Channel 8
  11. OUT9 - Output Channel 9
  12. OUT10 - Output Channel 10
  13. OUT11 - Output Channel 11
  14. OUT12 - Output Channel 12
  15. OUT13 - Output Channel 13
  16. OUT14 - Output Channel 14
  17. OUT15 - Output Channel 15
  18. VCC - Supply Voltage
  19. SDA - Serial Data Input
  20. SCL - Serial Clock Input
  21. OE - Output Enable
  22. IREF - Reference Current Input
  23. GND - Ground
  24. GND - Ground

Functional Features

  • Constant-current sink driver for driving LEDs
  • Wide dimming range for precise brightness control
  • Dot correction and global brightness control support
  • Thermal shutdown protection to prevent overheating

Advantages and Disadvantages

Advantages

  • High current sinking capability for driving high-power LEDs
  • Accurate and uniform brightness control
  • Flexible dimming options
  • Thermal protection ensures device longevity

Disadvantages

  • Limited to driving LEDs and not suitable for other applications
  • Requires external components for proper operation

Working Principles

The TLC5917IDRG4 operates by receiving serial data and clock signals to control the output channels. It uses a constant-current sink method to drive LEDs, ensuring consistent brightness across all channels. The device supports various dimming techniques, allowing precise control over LED brightness levels. Additionally, it incorporates thermal shutdown protection to safeguard against excessive heat.

Detailed Application Field Plans

The TLC5917IDRG4 finds application in various fields, including: 1. Automotive lighting systems 2. Signage and display boards 3. Backlighting for LCD panels 4. Architectural lighting 5. Entertainment and stage lighting

Detailed and Complete Alternative Models

  1. TLC5916IDR - 16-channel constant-current sink driver with similar features.
  2. TLC5920IDBQR - 20-channel constant-current sink driver with extended channel count.
  3. TLC5947IPWPR - 24-channel constant-current sink driver with additional grayscale control.

These alternative models offer similar functionality to the TLC5917IDRG4 and can be considered based on specific application requirements.

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Перелічіть 10 типових запитань і відповідей, пов’язаних із застосуванням TLC5917IDRG4 у технічних рішеннях

Sure! Here are 10 common questions and answers related to the application of TLC5917IDRG4 in technical solutions:

  1. Q: What is TLC5917IDRG4? A: TLC5917IDRG4 is a constant-current LED driver IC that can control up to 8 channels of LEDs.

  2. Q: What is the maximum output current per channel? A: The TLC5917IDRG4 can provide a maximum output current of 120 mA per channel.

  3. Q: Can I use TLC5917IDRG4 with different types of LEDs? A: Yes, TLC5917IDRG4 can be used with various types of LEDs, including both common anode and common cathode configurations.

  4. Q: How many TLC5917IDRG4 devices can be cascaded together? A: Multiple TLC5917IDRG4 devices can be cascaded together to control more than 8 channels of LEDs.

  5. Q: What is the communication interface used by TLC5917IDRG4? A: TLC5917IDRG4 uses the I2C communication interface for control and configuration.

  6. Q: Can I dim the LEDs using TLC5917IDRG4? A: Yes, TLC5917IDRG4 supports individual LED brightness control, allowing you to dim the LEDs as needed.

  7. Q: What is the supply voltage range for TLC5917IDRG4? A: The supply voltage range for TLC5917IDRG4 is typically between 3V and 5.5V.

  8. Q: Does TLC5917IDRG4 have built-in thermal protection? A: Yes, TLC5917IDRG4 has built-in thermal shutdown protection to prevent overheating.

  9. Q: Can I use TLC5917IDRG4 in automotive applications? A: Yes, TLC5917IDRG4 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 TLC5917IDRG4? A: Yes, Texas Instruments provides evaluation boards and reference designs that can help you get started with TLC5917IDRG4 in your application.

Please note that these answers are general and may vary depending on the specific requirements and implementation of the TLC5917IDRG4 in your technical solution.