Texas Instruments
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TLC5920DLRG4
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TLC5920DLRG4

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: LED Driver
  • Characteristics: High current sink capability, Serial interface, Daisy-chainable, Constant-current output
  • Package: 20-pin VQFN package
  • Essence: Efficiently drives and controls LEDs in various applications
  • Packaging/Quantity: Available in reels of 2500 units

Specifications

  • Supply Voltage: 3.3V to 5.5V
  • Number of Channels: 16
  • Maximum Output Current: 120mA per channel
  • Serial Interface: SPI-compatible
  • Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

  1. GND: Ground
  2. SIN: Serial Input
  3. SCLK: Serial Clock
  4. XLAT: Latch Enable
  5. BLANK: Output Disable
  6. VCC: Supply Voltage
  7. OUT0: Channel 0 Output
  8. OUT1: Channel 1 Output
  9. OUT2: Channel 2 Output
  10. OUT3: Channel 3 Output
  11. OUT4: Channel 4 Output
  12. OUT5: Channel 5 Output
  13. OUT6: Channel 6 Output
  14. OUT7: Channel 7 Output
  15. OUT8: Channel 8 Output
  16. OUT9: Channel 9 Output
  17. OUT10: Channel 10 Output
  18. OUT11: Channel 11 Output
  19. OUT12: Channel 12 Output
  20. OUT13: Channel 13 Output

Functional Features

  • High current sink capability allows driving high-power LEDs
  • Serial interface enables easy control and configuration
  • Daisy-chainable for simplified wiring and control of multiple devices
  • Constant-current output ensures consistent brightness across LEDs

Advantages and Disadvantages

Advantages: - High current sink capability enables driving of power-hungry LEDs - Serial interface simplifies control and configuration - Daisy-chainable feature reduces wiring complexity - Constant-current output ensures uniform brightness

Disadvantages: - Limited to 16 channels, may not be suitable for applications requiring more channels - Requires an external microcontroller or host device for control

Working Principles

The TLC5920DLRG4 is a LED driver IC that operates by receiving serial data from a microcontroller or host device. It utilizes a constant-current output architecture to ensure consistent brightness across connected LEDs. The IC can sink high currents, making it suitable for driving power-hungry LEDs. The serial interface allows easy control and configuration of the device, while the daisy-chainable feature simplifies the wiring and control of multiple devices.

Detailed Application Field Plans

The TLC5920DLRG4 is widely used in various applications that require LED driving and control. Some common application fields include:

  1. Automotive Lighting: Used for interior and exterior lighting in vehicles, such as dashboard indicators, taillights, and headlights.
  2. Signage and Displays: Enables control of LED-based signage, scoreboards, and large-scale displays.
  3. Architectural Lighting: Drives LEDs in architectural lighting installations, including accent lighting, façade illumination, and decorative lighting.
  4. Gaming and Entertainment: Used in gaming machines, amusement park attractions, and stage lighting systems.
  5. Consumer Electronics: Enables LED control in products like smart TVs, home appliances, and wearable devices.

Detailed and Complete Alternative Models

  1. TLC5940: Similar LED driver IC with 16 channels, but offers additional grayscale control for each channel.
  2. MAX7219: LED driver IC with 8 channels, suitable for applications requiring fewer channels.
  3. IS31FL3731: LED driver IC with 144 channels, ideal for driving large LED matrices or displays.

These alternative models provide different channel counts and additional features to suit various application requirements.

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Перелічіть 10 типових запитань і відповідей, пов’язаних із застосуванням TLC5920DLRG4 у технічних рішеннях

Sure! Here are 10 common questions and answers related to the application of TLC5920DLRG4 in technical solutions:

  1. Q: What is the TLC5920DLRG4? A: The TLC5920DLRG4 is a constant-current LED driver that can control up to 16 channels of LEDs.

  2. Q: What is the maximum current per channel that the TLC5920DLRG4 can handle? A: The TLC5920DLRG4 can handle a maximum current of 120 mA per channel.

  3. Q: Can the TLC5920DLRG4 be used with both common-anode and common-cathode LEDs? A: Yes, the TLC5920DLRG4 can be used with both common-anode and common-cathode LEDs.

  4. Q: How many TLC5920DLRG4 devices can be cascaded together? A: Multiple TLC5920DLRG4 devices can be cascaded together to control more than 16 channels of LEDs.

  5. Q: What is the input voltage range for the TLC5920DLRG4? A: The input voltage range for the TLC5920DLRG4 is typically between 3V and 5.5V.

  6. Q: Can the TLC5920DLRG4 be controlled using a microcontroller? A: Yes, the TLC5920DLRG4 can be easily controlled using a microcontroller through a serial interface.

  7. Q: Does the TLC5920DLRG4 have built-in thermal shutdown protection? A: Yes, the TLC5920DLRG4 has built-in thermal shutdown protection to prevent overheating.

  8. Q: Can the TLC5920DLRG4 dim the LEDs connected to it? A: Yes, the TLC5920DLRG4 supports LED dimming through pulse width modulation (PWM) control.

  9. Q: What is the maximum clock frequency for the TLC5920DLRG4? A: The maximum clock frequency for the TLC5920DLRG4 is typically 30 MHz.

  10. Q: Can the TLC5920DLRG4 be used in automotive applications? A: Yes, the TLC5920DLRG4 is qualified for automotive applications and can operate in a wide temperature range.

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