TLC5958RTQT

Product Overview

Category

The TLC5958RTQT belongs to the category of integrated circuits (ICs).

Use

This IC is primarily used for controlling LED displays and lighting systems.

Characteristics

• High precision grayscale PWM control
• 16-bit constant current sink output
• Serial data input interface
• Daisy-chainable for cascading multiple devices
• Wide operating voltage range
• Low power consumption

Package

The TLC5958RTQT is available in a small outline package (TQFP) with 64 pins.

Essence

The essence of the TLC5958RTQT lies in its ability to accurately control the brightness and color of LEDs in various applications.

Packaging/Quantity

The TLC5958RTQT is typically sold in reels, with each reel containing 250 units.

Specifications

• Supply Voltage: 3.0V to 5.5V
• Output Current: Up to 120mA per channel
• Data Transfer Rate: Up to 30MHz
• Operating Temperature Range: -40°C to +85°C
• Package Dimensions: 10mm x 10mm x 1mm

Detailed Pin Configuration

The TLC5958RTQT has a total of 64 pins, which are assigned specific functions. The pin configuration is as follows:

1. VCC
2. GND
3. SIN
4. SCLK
5. XLAT
6. BLANK
7. DCPRG
8. VPRG
9. GSCLK
10. OUT0
11. OUT1
12. OUT2
13. OUT3
14. OUT4
15. OUT5
16. OUT6
17. OUT7
18. OUT8
19. OUT9
20. OUT10
21. OUT11
22. OUT12
23. OUT13
24. OUT14
25. OUT15
26. OUT16
27. OUT17
28. OUT18
29. OUT19
30. OUT20
31. OUT21
32. OUT22
33. OUT23
34. OUT24
35. OUT25
36. OUT26
37. OUT27
38. OUT28
39. OUT29
40. OUT30
41. OUT31
42. OUT32
43. OUT33
44. OUT34
45. OUT35
46. OUT36
47. OUT37
48. OUT38
49. OUT39
50. OUT40
51. OUT41
52. OUT42
53. OUT43
54. OUT44
55. OUT45
56. OUT46
57. OUT47
58. OUT48
59. OUT49
60. OUT50
61. OUT51
62. OUT52
63. OUT53
64. OUT54

Functional Features

• Grayscale PWM Control: The TLC5958RTQT allows precise control of the grayscale levels of LEDs, enabling smooth transitions and accurate color reproduction.
• Constant Current Sink Output: Each channel of the IC provides a 16-bit constant current sink output, ensuring consistent brightness across multiple LEDs.
• Serial Data Input Interface: The IC accepts serial data input, making it compatible with various microcontrollers and communication protocols.
• Daisy-Chaining Capability: Multiple TLC5958RTQT devices can be cascaded together to control a large number of LEDs without requiring additional control lines.
• Wide Operating Voltage Range: The IC can operate within a wide voltage range, providing flexibility in different applications.
• Low Power Consumption: The TLC5958RTQT is designed to minimize power consumption, making it suitable for battery-powered devices.

Advantages and Disadvantages

Advantages

• High precision control of LED brightness and color
• Compatibility with various microcontrollers and communication protocols
• Ability to control a large number of LEDs with daisy-chaining
• Wide operating voltage range for versatile applications
• Low power consumption for energy efficiency

Disadvantages

• Limited output current per channel (up to 120mA)
• Requires external components for proper operation
• Relatively complex pin configuration

Working Principles

The TLC5958RTQT utilizes pulse width modulation (PWM) to control the brightness of LEDs. 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, adjusting the current sink output accordingly. By rapidly switching the LEDs on and off at varying duty cycles, the desired brightness levels are achieved.

Detailed Application Field Plans

The TLC5958RTQT finds extensive application in various fields, including:

1. LED Displays: The IC is commonly used in LED display panels for advertising, information boards, and signage.
2. Architectural Lighting: It is employed in architectural lighting systems to create dynamic and