STMicroelectronics

M5451QT

M5451QT Description

The M5451QT is a versatile LED display driver IC designed by STMicroelectronics, suitable for driving 4 or 5-digit alphanumeric or dot matrix displays. This surface-mount device offers a robust solution for various display applications, featuring a supply current of 7 mA and a supply voltage range of 4.75V to 13.2V. The M5451QT is housed in a Tape & Reel (TR) package, ensuring ease of integration into modern electronic assemblies. It supports serial interface communication, making it compatible with a wide range of systems. The device is REACH unaffected and ROHS3 compliant, adhering to stringent environmental and safety standards. With a moisture sensitivity level (MSL) of 3 (168 hours), the M5451QT is well-suited for environments where moisture resistance is crucial. Despite its obsolescence, the M5451QT remains a reliable choice for legacy systems and specific applications where its unique features are required.

M5451QT Features

• Display Capability: Supports 4 or 5-digit alphanumeric or dot matrix displays, providing flexibility in display configurations.
• Low Power Consumption: Operates at a supply current of 7 mA, making it energy-efficient and suitable for battery-powered devices.
• Wide Voltage Range: Functions within a supply voltage range of 4.75V to 13.2V, ensuring compatibility with various power sources.
• Surface Mount Technology: The surface-mount package facilitates easy integration into compact and high-density PCB designs.
• Environmental Compliance: The M5451QT is REACH unaffected and ROHS3 compliant, meeting industry standards for environmental sustainability.
• Moisture Resistance: With an MSL of 3 (168 hours), it is well-suited for applications requiring resistance to moisture.
• Serial Interface: Supports serial communication, simplifying connections and reducing the number of required pins.
• Packaging: Available in Tape & Reel (TR) packaging, which is ideal for automated assembly processes.

M5451QT Applications

The M5451QT is ideal for a variety of applications where reliable and efficient LED display driving is required. Some specific use cases include:

• Consumer Electronics: Used in devices such as digital clocks, calculators, and small appliances that require clear and efficient display solutions.
• Industrial Equipment: Suitable for control panels and monitoring systems where alphanumeric or dot matrix displays are needed.
• Automotive Applications: Ideal for dashboard displays and other automotive electronics where moisture resistance and low power consumption are critical.
• Medical Devices: Applicable in medical equipment where clear and accurate display of information is essential.
• Legacy Systems: Given its obsolescence, the M5451QT is particularly valuable for maintaining and upgrading older systems that rely on its specific features.

Conclusion of M5451QT

The M5451QT from STMicroelectronics is a robust and versatile LED display driver IC that offers a range of technical specifications and performance benefits. Its ability to drive 4 or 5-digit alphanumeric or dot matrix displays, combined with low power consumption and wide voltage range, makes it suitable for various applications. The device's environmental compliance and moisture resistance further enhance its reliability and suitability for different operating conditions. Although the M5451QT is now obsolete, it remains a valuable component for specific applications and legacy systems, ensuring continued functionality and compatibility.