MLX90821VXG-DBA-008-SP

Pressure Sensors Transducers Overview

The MLX90821VXG-DBA-008-SP is a factory-calibrated integrated relative pressure sensor IC designed for automotive applications. It operates within an absolute pressure range of -0.54 PSI to 0.18 PSI (-37 mbar to 12 mbar). The device provides an analog output proportional to the supply voltage or a digital SENT output capable of delivering compensated medium temperature information with ±1°C accuracy. It supports a wide automotive operating temperature range from -40°C to 150°C and features internal diagnostic functions including clamp level detection, open circuit tracking, and fault diagnosis.

Pressure Sensors Transducers Feature Summary

• Provides high-accuracy relative pressure measurement with analog or digital SENT output options
• Includes NTC-based medium temperature sensing for enhanced compensation in digital mode
• Features automotive-grade diagnostic capabilities such as clamp levels and open circuit tracking
• Factory calibrated with optional customer re-calibration via connector

Pressure Sensors Transducers Applications

• Fuel vapor pressure monitoring systems
• Ultra-low pressure automotive media applications
• Emission control system diagnostics
• Crankcase ventilation pressure measurement

Pressure Sensors Transducers Procurement Notes

Verify that the specific suffix 'DBA' corresponds to the required package type and pinout configuration for your PCB layout. Confirm that the operating pressure range aligns with your system's maximum expected pressures to avoid sensor saturation. Ensure that the interface (analog vs. SENT) matches your ECU's input requirements, as the base model may offer different output types depending on the full ordering code.

Pressure Sensors Transducers Selection Notes

Select this component when ultra-low pressure resolution is critical for fuel or emission systems. Choose the SENT output variant if digital noise immunity and integrated temperature compensation are required. Verify compatibility with the vehicle's power supply voltage range. Consider the exposed pad thermal design requirements for proper heat dissipation during operation in high-temperature environments up to 150°C.

Pressure Sensors Transducers Part Context

This part belongs to the Melexis MLX90821 family of relative pressure sensors. These devices are specifically engineered for harsh automotive environments requiring robust performance at low pressure differentials. The family offers both analog and digital interfaces to accommodate various electronic control unit architectures while maintaining high accuracy across the extended automotive temperature spectrum.

Pressure Sensors Transducers Replacement Considerations

Check datasheets for other MLX90821 variants with different pressure ranges or output types. Verify pin-to-pin compatibility before substitution. Ensure that any replacement part maintains the same automotive qualification standards and diagnostic feature set required by the application.