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TLC5944PWPR
Product Overview
The TLC5944PWPR belongs to the category of LED drivers and controllers. It is commonly used in applications requiring precise control over multiple LEDs, such as display panels, signage, and decorative lighting. The TLC5944PWPR is known for its high precision, grayscale control, and daisy-chainable feature. It is available in a TSSOP package and is essential for achieving accurate color and brightness control in LED-based systems.
Package and Quantity
The TLC5944PWPR comes in a TSSOP-28 package and is typically sold in reels of 2500 units.
Specifications
- Supply Voltage: 3V to 5.5V
- Number of Channels: 16
- Gray Scale: 4096 steps
- Interface: Serial
- Package Type: TSSOP-28
Detailed Pin Configuration
The TLC5944PWPR features a 28-pin TSSOP package with the following pin configuration: 1. VCC 2. GND 3. SOUT 4. SIN 5. XLAT 6. BLANK 7. GSCLK 8. SCLK 9. OUT0 10. OUT1 11. OUT2 12. OUT3 13. OUT4 14. OUT5 15. OUT6 16. OUT7 17. OUT8 18. OUT9 19. OUT10 20. OUT11 21. OUT12 22. OUT13 23. OUT14 24. OUT15 25. IREF 26. DCPRG 27. VPRG 28. GND
Functional Features
- High grayscale resolution for precise LED control
- Daisy-chainable for easy scalability
- Serial interface for simplified communication
- Integrated current sinks for direct LED connection
Advantages and Disadvantages
Advantages
- High precision grayscale control
- Daisy-chainable for scalability
- Simplified serial communication interface
Disadvantages
- Limited to 16 channels
- Requires external resistors for current setting
Working Principles
The TLC5944PWPR operates by receiving grayscale data through the serial interface and converting it into precise current levels for each LED channel. It utilizes an internal reference voltage and current sinks to achieve accurate brightness and color control.
Detailed Application Field Plans
The TLC5944PWPR is widely used in various applications, including: - LED display panels - LED signage - Decorative lighting - Architectural lighting - Entertainment lighting
Detailed and Complete Alternative Models
Some alternative models to the TLC5944PWPR include: - TLC5947: Offers higher channel count - TLC59711: Provides integrated PWM control - MAX7219: Suitable for driving 7-segment displays
In conclusion, the TLC5944PWPR is a versatile LED driver and controller that offers high precision and grayscale control, making it an ideal choice for applications requiring accurate LED brightness and color management.
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Liệt kê 10 câu hỏi và câu trả lời thường gặp liên quan đến ứng dụng TLC5944PWPR trong giải pháp kỹ thuật
What is TLC5944PWPR?
- The TLC5944PWPR is a 16-channel, constant-current sink driver with grayscale PWM control.
What is the maximum output current of TLC5944PWPR?
- The TLC5944PWPR has a maximum output current of 120 mA per channel.
What is the supply voltage range for TLC5944PWPR?
- The supply voltage range for TLC5944PWPR is 3V to 5.5V.
How many bits of grayscale control does TLC5944PWPR support?
- TLC5944PWPR supports 12-bit grayscale control.
What is the typical application of TLC5944PWPR?
- The typical application of TLC5944PWPR includes driving LEDs for display and lighting applications.
Does TLC5944PWPR have thermal shutdown protection?
- Yes, TLC5944PWPR has thermal shutdown protection to prevent damage due to excessive temperature.
Can TLC5944PWPR be daisy-chained for controlling more than 16 channels?
- Yes, TLC5944PWPR can be daisy-chained to control multiple devices and expand the number of channels.
What is the communication interface used by TLC5944PWPR?
- TLC5944PWPR uses a serial interface (SPI) for communication with microcontrollers or other devices.
Is TLC5944PWPR suitable for automotive applications?
- Yes, TLC5944PWPR is suitable for automotive applications as it can operate within the required voltage range and has ESD protection.
What are the key features of TLC5944PWPR?
- The key features of TLC5944PWPR include 16 channels of LED control, grayscale PWM control, and daisy-chain capability for expanding the number of channels.