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TLC5921DAPRG4
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TLC5921DAPRG4

Product Overview

Category

TLC5921DAPRG4 belongs to the category of integrated circuits (ICs).

Use

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

Characteristics

  • TLC5921DAPRG4 is a high-performance LED driver IC.
  • It can control up to 16 individual LEDs.
  • The IC operates with a wide supply voltage range, making it suitable for different power sources.
  • It offers adjustable current sinking capability for precise LED brightness control.
  • The device supports both dot correction and global brightness control features.

Package

TLC5921DAPRG4 is available in a small outline package (SOP) with 20 pins.

Essence

The essence of this product lies in its ability to efficiently drive and control multiple LEDs, enabling versatile lighting solutions.

Packaging/Quantity

TLC5921DAPRG4 is typically sold in reels containing a quantity of 250 units per reel.

Specifications

  • Supply Voltage Range: 3V to 5.5V
  • Maximum Output Current: 80mA per channel
  • Number of Channels: 16
  • Operating Temperature Range: -40°C to +85°C
  • Package Type: SOP-20

Detailed Pin Configuration

The pin configuration of TLC5921DAPRG4 is 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. SDA (Serial Data Input)
  20. SCL (Serial Clock Input)

Functional Features

  • TLC5921DAPRG4 provides constant current sinking for LED control.
  • It supports both dot correction and global brightness control.
  • The device offers a serial interface for easy integration with microcontrollers or other control systems.
  • It has built-in thermal shutdown protection to prevent damage due to excessive heat.

Advantages and Disadvantages

Advantages

  • High-performance LED driver with precise brightness control.
  • Wide supply voltage range allows compatibility with various power sources.
  • Supports dot correction and global brightness control for enhanced lighting effects.
  • Compact package size enables space-efficient designs.

Disadvantages

  • Limited to driving LEDs and not suitable for other types of loads.
  • Requires external components for proper operation, such as resistors for current setting.

Working Principles

TLC5921DAPRG4 operates by receiving serial data input (SDA) and serial clock input (SCL) signals from a microcontroller or control system. The IC interprets the received data and controls the output currents to the connected LEDs accordingly. By adjusting the current sinking capability, the brightness of each LED can be precisely controlled.

Detailed Application Field Plans

TLC5921DAPRG4 finds applications in various fields, including but not limited to: - Automotive lighting systems - Signage and display boards - Backlighting for LCD panels - Decorative lighting - Architectural lighting - Industrial control panels

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to TLC5921DAPRG4 are: - TLC5916IPWR - TLC5940PWPR - MAX7219CNG+ - IS31FL3733-QFLS2-TR

These alternatives can be considered based on specific requirements and availability.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací TLC5921DAPRG4 v technických řešeních

Sure! Here are 10 common questions and answers related to the application of TLC5921DAPRG4 in technical solutions:

Q1: What is TLC5921DAPRG4? A1: TLC5921DAPRG4 is a 16-channel constant-current LED driver that can be used to control and drive LEDs in various applications.

Q2: What is the maximum output current of TLC5921DAPRG4? A2: The TLC5921DAPRG4 can provide a maximum output current of 120 mA per channel.

Q3: Can TLC5921DAPRG4 be used with both common-anode and common-cathode LEDs? A3: Yes, TLC5921DAPRG4 can be used with both common-anode and common-cathode LEDs.

Q4: What is the supply voltage range for TLC5921DAPRG4? A4: The supply voltage range for TLC5921DAPRG4 is typically between 3.3V and 5.5V.

Q5: How many TLC5921DAPRG4 devices can be cascaded together? A5: Multiple TLC5921DAPRG4 devices can be cascaded together to control a larger number of LEDs. The exact number depends on the specific application and system requirements.

Q6: Does TLC5921DAPRG4 support PWM dimming? A6: Yes, TLC5921DAPRG4 supports PWM (Pulse Width Modulation) dimming, allowing precise control of LED brightness.

Q7: Can TLC5921DAPRG4 be controlled using a microcontroller? A7: Yes, TLC5921DAPRG4 can be easily controlled using a microcontroller through a serial interface such as SPI or I2C.

Q8: What is the thermal shutdown feature in TLC5921DAPRG4? A8: The thermal shutdown feature in TLC5921DAPRG4 protects the device from overheating by shutting down the outputs when the junction temperature exceeds a certain threshold.

Q9: Can TLC5921DAPRG4 be used in automotive applications? A9: Yes, TLC5921DAPRG4 is suitable for automotive applications as it can operate over a wide temperature range and has built-in ESD protection.

Q10: Are there any evaluation boards or reference designs available for TLC5921DAPRG4? A10: Yes, Texas Instruments provides evaluation boards and reference designs for TLC5921DAPRG4, which can help in quickly prototyping and integrating the device into a system.

Please note that these answers are general and may vary depending on the specific requirements and application of TLC5921DAPRG4. It is always recommended to refer to the datasheet and application notes for detailed information.