TLC5921DAPG4

Product Overview

Category

TLC5921DAPG4 belongs to the category of integrated circuits (ICs).

Use

This product is commonly used for driving LED displays and lighting applications.

Characteristics

• TLC5921DAPG4 is a 16-channel constant-current sink driver.
• It operates with a supply voltage range of 3 V to 5.5 V.
• The device can sink up to 120 mA per channel.
• It has a built-in thermal shutdown protection feature.
• The TLC5921DAPG4 supports both dot correction and grayscale control.

Package

The TLC5921DAPG4 is available in a TSSOP-24 package.

Essence

The essence of this product lies in its ability to efficiently drive LED displays and lighting systems by providing constant current sinking capabilities.

Packaging/Quantity

The TLC5921DAPG4 is typically sold in reels, with each reel containing 2500 units.

Specifications

• Supply Voltage Range: 3 V to 5.5 V
• Number of Channels: 16
• Maximum Current per Channel: 120 mA
• Package Type: TSSOP-24
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The TLC5921DAPG4 features a TSSOP-24 package with the following pin configuration:

1. GND
2. OUT0
3. OUT1
4. OUT2
5. OUT3
6. OUT4
7. OUT5
8. OUT6
9. OUT7
10. OUT8
11. OUT9
12. OUT10
13. OUT11
14. OUT12
15. OUT13
16. OUT14
17. OUT15
18. SOUT
19. SIN
20. SCLK
21. BLANK
22. XLAT
23. VCC
24. GND

Functional Features

• Constant-current sink driver for LED displays and lighting applications.
• Dot correction and grayscale control support.
• Built-in thermal shutdown protection.
• High current sinking capability (up to 120 mA per channel).
• Wide supply voltage range for compatibility with various systems.

Advantages and Disadvantages

Advantages

• Efficiently drives LED displays and lighting systems.
• Supports dot correction and grayscale control for enhanced visual effects.
• Provides thermal shutdown protection to prevent overheating.
• Can handle high current sinking requirements.
• Compatible with a wide range of supply voltages.

Disadvantages

• Limited to driving LED displays and lighting applications.
• Requires additional external components for complete system integration.

Working Principles

The TLC5921DAPG4 operates by receiving input data through the SIN pin, which is then synchronized with the clock signal provided through the SCLK pin. The device uses this data to control the current sinking for each channel, allowing precise control over the brightness levels of connected LEDs. The XLAT pin is used to latch the data into the output registers, while the BLANK pin can be used to turn off all outputs simultaneously. The device also incorporates dot correction and grayscale control features to further enhance the visual quality of the LED display or lighting system.

Detailed Application Field Plans

The TLC5921DAPG4 finds extensive application in various fields, including:

1. LED displays in digital signage and advertising boards.
2. Automotive lighting systems, such as taillights and interior lighting.
3. Backlighting for LCD panels in consumer electronics devices.
4. Architectural lighting for decorative purposes.
5. Industrial equipment status indicators.
6. Gaming machines and casino displays.
7. Medical equipment displays.
8. Outdoor lighting for streetlights and landscape illumination.

Detailed and Complete Alternative Models

1. TLC5922DAPG4: Similar to TLC5921DAPG4 but with 8 channels instead of 16.
2. TLC5940DAPG4: A 16-channel constant-current sink driver with additional grayscale control features.
3. MAX7219CNG+: A versatile LED display driver with serial interface and cascading capabilities.
4. HT16K33: An I2C-controlled LED driver supporting up to 128 LEDs.
5. TLC59711PWPR: A 12-channel constant-current sink driver with integrated PWM control.

These alternative models offer similar functionality and can be considered as alternatives to the TLC5921DAPG4 based on specific application requirements.

In conclusion, the TLC5921DAPG4 is a highly capable integrated circuit designed for driving LED displays and lighting applications. With its high current sinking capability, dot correction, and grayscale control features, it offers precise control over brightness levels. While it has some limitations in terms of application scope, it provides efficient and reliable performance in its intended field.