TLC5955DCAR

Product Overview

Category

The TLC5955DCAR belongs to the category of LED driver integrated circuits.

Use

It is primarily used for controlling and driving LEDs in various applications.

Characteristics

• High precision grayscale PWM control
• Wide range of output current adjustment
• Daisy-chainable for easy scalability
• Built-in error detection and protection features
• Low power consumption
• High refresh rate for smooth LED animations

Package

The TLC5955DCAR comes in a small outline package (SOIC) with 56 pins.

Essence

The essence of the TLC5955DCAR lies in its ability to efficiently drive and control multiple LEDs, providing precise and customizable lighting solutions.

Packaging/Quantity

The TLC5955DCAR is typically packaged in reels and available in quantities of 2500 units per reel.

Specifications

• Supply voltage: 3.3V - 5.5V
• Output current: Up to 60mA per channel
• Number of channels: 48
• Communication interface: Serial data input/output
• Operating temperature range: -40°C to +85°C

Detailed Pin Configuration

The TLC5955DCAR has a total of 56 pins, each serving a specific purpose. The pin configuration is as follows:

1. VCC
2. GND
3. SOUT
4. SIN
5. SCLK
6. XLAT
7. BLANK
8. GSCLK
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. OUT16
26. OUT17
27. OUT18
28. OUT19
29. OUT20
30. OUT21
31. OUT22
32. OUT23
33. OUT24
34. OUT25
35. OUT26
36. OUT27
37. OUT28
38. OUT29
39. OUT30
40. OUT31
41. OUT32
42. OUT33
43. OUT34
44. OUT35
45. OUT36
46. OUT37
47. OUT38
48. OUT39
49. OUT40
50. OUT41
51. OUT42
52. OUT43
53. OUT44
54. OUT45
55. OUT46
56. OUT47

Functional Features

• Grayscale PWM control: The TLC5955DCAR allows precise control of the grayscale levels of each LED, resulting in smooth and accurate color reproduction.
• Output current adjustment: It provides a wide range of output current adjustment options, allowing flexibility in driving LEDs with different power requirements.
• Daisy-chainable: Multiple TLC5955DCAR ICs can be easily connected in a daisy-chain configuration, simplifying the wiring and scalability of LED arrays.
• Error detection and protection: Built-in error detection mechanisms help identify and protect against potential issues such as overtemperature, open/short circuit, and undervoltage conditions.
• Low power consumption: The TLC5955DCAR is designed to operate efficiently, minimizing power consumption while delivering optimal performance.
• High refresh rate: With a high refresh rate, it ensures smooth and flicker-free LED animations.

Advantages and Disadvantages

Advantages

• Precise grayscale control for accurate color representation
• Flexible output current adjustment for various LED types
• Easy scalability through daisy-chaining
• Built-in error detection and protection mechanisms
• Efficient power consumption
• Smooth LED animations with high refresh rate

Disadvantages

• Limited number of output channels (48)
• Requires external components for proper operation
• Relatively higher cost compared to simpler LED driver solutions

Working Principles

The TLC5955DCAR operates based on the principle of pulse-width modulation (PWM). It receives serial data input, which contains information about the desired grayscale levels for each LED. The IC then converts this data into precise PWM signals, controlling the current flowing through the LEDs. By adjusting the duty cycle of these PWM signals, the TLC5955DCAR achieves accurate grayscale control.

Detailed Application Field Plans

The TLC5955DCAR finds applications in various fields, including:

1. Automotive lighting systems: It can be used to drive and control LEDs in automotive headlights, taillights, and interior lighting.
2. Display panels: The TLC5955DCAR enables precise control of LEDs in large display panels, such as those used in stadiums or advertising billboards.
3. Architectural lighting: It is suitable for architectural lighting installations, allowing dynamic and customizable