MAX6922AQH+TD

Product Overview

Category

The MAX6922AQH+TD belongs to the category of integrated circuits (ICs).

Use

This IC is primarily used for driving multiplexed, common-cathode LED displays.

Characteristics

• The MAX6922AQH+TD is a high-voltage, serial-input, common-cathode display driver.
• It can drive up to 16 seven-segment digits or 128 individual LEDs.
• The IC operates with a wide supply voltage range of 4.5V to 5.5V.
• It offers a high-speed, 30MHz SPI-compatible serial interface.
• The MAX6922AQH+TD is designed to withstand electrostatic discharge (ESD) up to ±15kV.

Package

This IC is available in a compact 28-pin QSOP package.

Essence

The MAX6922AQH+TD is an essential component for controlling and driving LED displays efficiently.

Packaging/Quantity

The MAX6922AQH+TD is typically packaged in reels, containing 250 units per reel.

Specifications

• Supply Voltage Range: 4.5V to 5.5V
• Maximum Clock Frequency: 30MHz
• Maximum Display Digits: 16
• Maximum Individual LEDs: 128
• ESD Protection: ±15kV

Detailed Pin Configuration

1. VDD - Power Supply
2. GND - Ground
3. DIN - Serial Data Input
4. CLK - Clock Input
5. LOAD - Load Input
6. BLANK - Blank Input
7. DIG0 - Digit 0 Output
8. DIG1 - Digit 1 Output
9. DIG2 - Digit 2 Output
10. DIG3 - Digit 3 Output
11. DIG4 - Digit 4 Output
12. DIG5 - Digit 5 Output
13. DIG6 - Digit 6 Output
14. DIG7 - Digit 7 Output
15. SEG0 - Segment 0 Output
16. SEG1 - Segment 1 Output
17. SEG2 - Segment 2 Output
18. SEG3 - Segment 3 Output
19. SEG4 - Segment 4 Output
20. SEG5 - Segment 5 Output
21. SEG6 - Segment 6 Output
22. SEG7 - Segment 7 Output
23. SEG8 - Segment 8 Output
24. SEG9 - Segment 9 Output
25. SEG10 - Segment 10 Output
26. SEG11 - Segment 11 Output
27. SEG12 - Segment 12 Output
28. SEG13 - Segment 13 Output

Functional Features

• High-voltage, serial-input display driver
• Drives multiplexed, common-cathode LED displays
• Wide supply voltage range for compatibility
• High-speed SPI-compatible serial interface
• ESD protection for enhanced durability

Advantages and Disadvantages

Advantages

• Efficiently drives LED displays with minimal power consumption
• Wide supply voltage range allows for versatile applications
• High-speed serial interface enables quick data transfer
• ESD protection ensures reliability in harsh environments

Disadvantages

• Limited to driving common-cathode LED displays only
• Requires external components for complete LED display functionality

Working Principles

The MAX6922AQH+TD operates by receiving serial data through the DIN pin and clocking it in using the CLK input. The LOAD input is used to latch the received data into internal registers. The BLANK input can be used to blank all the outputs simultaneously. The IC then drives the appropriate segments and digits based on the received data, illuminating the desired LED display pattern.

Detailed Application Field Plans

The MAX6922AQH+TD finds applications in various fields, including: - Digital clocks and timers - Instrumentation panels - Scoreboards and signage displays - Industrial control systems - Automotive dashboard displays

Detailed and Complete Alternative Models

1. MAX7219CNG+: Similar to the MAX6922AQH+TD, this IC is a common-cathode LED display driver with a serial interface. It can drive up to 8 digits or 64 individual LEDs.
2. TLC5940NT: This IC is a constant-current LED driver that can drive up to 16 channels. It offers grayscale control for smooth LED intensity variations.
3. HT16K33: A compact LED controller and driver IC that supports up to 128 LEDs. It features an I2C-compatible interface for easy integration.

These alternative models provide similar functionality and can be considered based on specific application requirements.

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