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TLC5947RHBTG4
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TLC5947RHBTG4

Product Overview

Category: Integrated Circuit (IC)

Use: The TLC5947RHBTG4 is a 24-channel, constant current sink LED driver IC. It is designed to control and drive LEDs in various applications such as displays, signage, lighting, and automotive lighting.

Characteristics: - Constant current sink output - High grayscale resolution (4096 steps) - Wide operating voltage range (3V to 5.5V) - Serial data input interface - Daisy-chainable for multiple devices - Thermal shutdown protection - Low power consumption

Package: The TLC5947RHBTG4 is available in a 32-pin VQFN package.

Essence: This IC is essential for controlling and driving LEDs with high precision and efficiency.

Packaging/Quantity: The TLC5947RHBTG4 is typically sold in reels of 2500 units.

Specifications

  • Supply Voltage Range: 3V to 5.5V
  • Output Current Range: 5mA to 120mA per channel
  • Grayscale Resolution: 12 bits (4096 steps)
  • Maximum Clock Frequency: 30MHz
  • Operating Temperature Range: -40°C to +85°C

Pin Configuration

The TLC5947RHBTG4 has a total of 32 pins. Here is the detailed pin configuration:

  1. GND - Ground
  2. SIN - Serial Data Input
  3. SCLK - Serial Clock Input
  4. XLAT - Latch Signal Input
  5. BLANK - Blank Signal Input
  6. DCPRG - Dot Correction Programming Input
  7. VCC - Power Supply 8-31. OUT0-OUT23 - LED Output Channels
  8. VPRG - VPRG Programming Input

Functional Features

  • Constant Current Sink: The TLC5947RHBTG4 provides a constant current sink output for precise LED control.
  • High Grayscale Resolution: With 12-bit grayscale resolution, it offers smooth and accurate brightness control with 4096 steps.
  • Serial Data Input Interface: The IC utilizes a serial data input interface for easy integration with microcontrollers or other control systems.
  • Daisy-Chaining Capability: Multiple TLC5947RHBTG4 devices can be daisy-chained together to control a larger number of LEDs.
  • Thermal Shutdown Protection: It incorporates thermal shutdown protection to prevent damage due to excessive heat.
  • Low Power Consumption: The IC is designed to operate with low power consumption, making it suitable for battery-powered applications.

Advantages and Disadvantages

Advantages: - Precise and efficient LED control - High grayscale resolution for smooth brightness transitions - Easy integration with microcontrollers - Daisy-chaining capability for scalability - Thermal shutdown protection for reliability - Low power consumption for energy efficiency

Disadvantages: - Limited to constant current sink output - Requires external components for dot correction programming

Working Principles

The TLC5947RHBTG4 operates by receiving serial data input that contains brightness information for each LED channel. It then converts this data into a constant current sink output, which drives the connected LEDs. The IC uses dot correction programming to adjust the brightness levels of individual LEDs for uniform illumination.

Detailed Application Field Plans

The TLC5947RHBTG4 finds applications in various fields, including: 1. LED displays and signage 2. Architectural and decorative lighting 3. Automotive lighting (e.g., taillights, interior lighting) 4. Backlighting for LCD panels 5. Stage and entertainment lighting

Detailed and Complete Alternative Models

Some alternative models to the TLC5947RHBTG4 include: - TLC5940: 16-channel LED driver with similar features but lower channel count - MAX7219: LED driver IC with multiplexing capability for driving matrix displays - TLC59711: 12-channel LED driver with integrated dot correction and grayscale control

These alternative models offer different channel counts, additional features, or specific application-oriented designs.

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Lista 10 Vanliga frågor och svar relaterade till tillämpningen av TLC5947RHBTG4 i tekniska lösningar

Sure! Here are 10 common questions and answers related to the application of TLC5947RHBTG4 in technical solutions:

  1. Q: What is the TLC5947RHBTG4? A: The TLC5947RHBTG4 is a 24-channel, constant-current sink LED driver that can be used to control LEDs in various applications.

  2. Q: How many LEDs can the TLC5947RHBTG4 control? A: The TLC5947RHBTG4 can control up to 24 individual LEDs or LED segments.

  3. Q: What is constant-current sink? A: Constant-current sink refers to the ability of the TLC5947RHBTG4 to provide a consistent current to the connected LEDs, ensuring uniform brightness.

  4. Q: Can the TLC5947RHBTG4 be used with different types of LEDs? A: Yes, the TLC5947RHBTG4 can be used with various types of LEDs, including common cathode RGB LEDs, single-color LEDs, and more.

  5. Q: How is the TLC5947RHBTG4 controlled? A: The TLC5947RHBTG4 can be controlled using a microcontroller or any other digital device capable of sending serial data.

  6. Q: What is the maximum current per channel that the TLC5947RHBTG4 can handle? A: The TLC5947RHBTG4 can handle a maximum current of 120 mA per channel.

  7. Q: Can the TLC5947RHBTG4 be daisy-chained to control more than 24 LEDs? A: Yes, multiple TLC5947RHBTG4 chips can be daisy-chained together to control a larger number of LEDs.

  8. Q: Does the TLC5947RHBTG4 have built-in PWM control? A: Yes, the TLC5947RHBTG4 has built-in 12-bit PWM control for precise brightness adjustment of the connected LEDs.

  9. Q: Can the TLC5947RHBTG4 be used in automotive applications? A: Yes, the TLC5947RHBTG4 is suitable for automotive applications as it can operate within a wide temperature range and has ESD protection.

  10. Q: What are some common applications of the TLC5947RHBTG4? A: The TLC5947RHBTG4 is commonly used in applications such as LED displays, signage, architectural lighting, automotive lighting, and more.

I hope these questions and answers help! Let me know if you have any further queries.