MAX6954AAX+T

Product Overview

• Category: Integrated Circuit
• Use: LED Display Driver
• Characteristics: High integration, low power consumption, versatile functionality
• Package: 36-pin SSOP (Shrink Small Outline Package)
• Essence: Efficient control of LED displays
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage: 2.7V to 5.5V
• Maximum Output Current: 80mA
• Number of Digit Drivers: 16
• Number of Segment Drivers: 8
• Serial Interface: SPI (Serial Peripheral Interface)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

1. VDD - Power supply voltage
2. GND - Ground
3. DIN - Serial data input
4. DOUT - Serial data output
5. CS - Chip select
6. CLK - Clock input
7. BLANK - Blanking control input
8. RSET - External resistor for current setting
9. ISET - External resistor for segment current setting
10. SEG0 to SEG7 - Segment outputs
11. DIG0 to DIG15 - Digit outputs

Functional Features

• High integration: The MAX6954AAX+T integrates 16 digit drivers and 8 segment drivers in a single package, reducing the need for external components.
• Low power consumption: The device operates at a low supply voltage and offers power-saving features such as blanking control and segment current setting.
• Versatile functionality: It supports various display modes, including static, multiplexed, and blinking, making it suitable for a wide range of applications.

Advantages and Disadvantages

Advantages: - Compact size and high integration save board space and reduce component count. - Low power consumption extends battery life in portable applications. - Versatile functionality allows for flexible display configurations.

Disadvantages: - Limited number of digit and segment drivers may not be suitable for large-scale displays. - Requires external resistors for current setting, adding complexity to the design.

Working Principles

The MAX6954AAX+T is an LED display driver that utilizes a serial interface (SPI) to receive data from a microcontroller. It converts the received data into appropriate signals to drive the connected LED segments and digits. The device supports various display modes, allowing for static or multiplexed operation with adjustable brightness levels. Blanking control enables individual or global segment blanking, while the external resistors set the desired segment and digit currents.

Detailed Application Field Plans

1. Consumer Electronics: The MAX6954AAX+T can be used in devices such as digital clocks, home appliances, and audio equipment to drive LED displays for time, status indicators, and volume levels.
2. Automotive: It finds application in car dashboards, infotainment systems, and climate control panels, providing clear and readable information to the driver and passengers.
3. Industrial Control: The device can be employed in industrial machinery, control panels, and process monitors to display real-time data, alarms, and system statuses.

Detailed and Complete Alternative Models

1. MAX7219CNG+: Similar to the MAX6954AAX+T, this IC is a versatile LED display driver with 8-digit and 7-segment outputs. It offers additional features such as intensity control and cascading capability.
2. TLC5940PWPR: This LED driver IC provides 16 channels of constant-current sink output, making it suitable for driving high-power LEDs. It supports grayscale control and daisy-chaining for larger displays.

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