STMicroelectronics

M5451Q

M5451Q Description

The M5451Q is an integrated circuit (IC) designed for driving LED displays, specifically tailored for applications requiring 4 or 5-digit alphanumeric or dot matrix configurations. Manufactured by STMicroelectronics, a leading semiconductor company, this IC is part of the Power Management (PMIC) category and is housed in a 44-pin PLCC package. The M5451Q features a surface mount configuration, making it suitable for modern, space-efficient PCB designs. Despite itssoles obcence status, the M5451Q remains a robust choice for specific applications due to its versatile display capabilities and reliable performance.

M5451Q Features

• Display Configuration: The M5451Q supports both 4 and 5-digit displays, offering flexibility in design choices. It can handle alphanumeric characters as well as dot matrix patterns, making it suitable for a wide range of display requirements.
• Supply Voltage and Current: It operates within a supply voltage range of 4.75V to 13.2V and draws a supply current of 7 mA, ensuring compatibility with various power supply systems and efficient power usage.
• Interface: The M5451Q utilizes a serial interface for data communication, simplifying connections and reducing the number of pins required for data transfer.
• Compliance and Packaging: The IC is REACH unaffected and RoHS3 compliant, adhering to stringent environmental and safety standards. It is packaged in a tube, which provides protection during shipping and handling.
• Moisture Sensitivity Level (MSL): With an MSL of 3 (168 hours), the M5451Q is designed to withstand moderate moisture exposure, making it suitable for various environmental conditions.

M5451Q Applications

The M5451Q is ideal for applications that require clear and reliable LED display solutions. Its versatility in handling both alphanumeric and dot matrix displays makes it suitable for:

• Consumer Electronics: Devices such as digital clocks, calculators, and small appliances that require user-friendly displays.
• Industrial Equipment: Control panels and monitoring systems that need to display numerical or character data.
• Automotive Applications: Dashboard displays and control units that require high visibility and reliability.
• Medical Devices: Instruments that need precise and clear displays for critical information.

Conclusion of M5451Q

The M5451Q, despite being an obsolete product, continues to offer significant advantages in specific applications due to its robust design and versatile display capabilities. Its compatibility with a wide range of supply voltages and efficient power usage make it a reliable choice for LED display solutions. The serial interface simplifies integration into various systems, while its compliance with environmental and safety standards ensures it meets modern regulatory requirements. For applications requiring 4 or 5-digit alphanumeric or dot matrix displays, the M5451Q remains a viable and effective solution.