Melexis MLX90637 Mini Automotive Infrared Thermometer IC

Introduction

The Melexis MLX90637 Miniature Automotive Infrared Thermometer IC is a cutting-edge non-contact infrared temperature sensor specifically designed for critical temperature monitoring in Electric Vehicle (EV) systems. This sensor stands out for its high-speed performance and accuracy, making it an essential component in modern automotive applications.

Part Description

The MLX90637 is a Surface Mount Device (SMD) that utilizes non-contact infrared measurement technology, allowing it to monitor temperatures without direct contact. This feature provides intrinsic galvanic isolation, enhancing safety by separating high- and low-voltage circuits. With a wide operating temperature range of -40°C to +125°C and a 50° field of view, the MLX90637 is factory-calibrated and features an I2C interface for seamless integration into various systems. Its compact 3mm x 3mm size and low power consumption (less than 2.5μA in sleep mode) make it ideal for automated PCB assembly and energy-efficient applications.

Applications

• Power semiconductor surface temperature monitoring (e.g., traction inverters)
• Bus bar temperature monitoring (e.g., traction inverters)
• Stator and rotor temperature measurement
• Thermal management in cooling circuits (e.g., traction inverters, battery packs, ECUs)
• In-cabin temperature monitoring for HVAC systems

Industries

• Automotive
• Electric Vehicles (EV)
• Renewable Energy
• HVAC (Heating, Ventilation, and Air Conditioning)
• Industrial Automation

Usage Ideas

1. Inverter Temperature Monitoring: Integrate the MLX90637 into an electric vehicle's inverter system to continuously monitor the temperature of power semiconductors, ensuring optimal performance and preventing overheating.

2. Battery Pack Thermal Management: Use the MLX90637 to monitor the temperature of battery packs in electric vehicles, allowing for real-time adjustments to cooling systems and enhancing battery life and efficiency.

3. HVAC System Optimization: Implement the MLX90637 in the HVAC system of a vehicle to accurately measure in-cabin temperatures, enabling smarter climate control and improved passenger comfort.

Conclusion

The Melexis MLX90637 Miniature Automotive Infrared Thermometer IC is a versatile and highly efficient sensor that plays a crucial role in the monitoring and management of temperatures in electric vehicles and other applications. Its non-contact measurement capabilities, high accuracy, and compact design make it an invaluable component for enhancing safety and performance in modern automotive systems.