MLX90825GXP-DAD-404-SP

Pressure Sensors Transducers Overview

The MLX90825GXP-DAD-404-SP is a board-mount, PCB-less relative pressure sensor IC from Melexis. It measures a relative pressure span of -0.3 to 1.0 bar (-30kPa to 100kPa). The device outputs digital data using the SENT protocol, with a resolution range of 193 to 3896 LSB. It integrates a MEMS sensing element and CMOS interface chip in a SMP-4 package. The sensor does not include an NTC thermistor input. It is designed for automotive applications requiring high accuracy and stability.

Pressure Sensors Transducers Feature Summary

• PCB-less integrated design combining MEMS sensing and signal processing
• SENT digital output protocol for robust communication
• Factory calibrated for high initial accuracy over extended mission profiles
• ASIL B compliant safety architecture for critical applications

Pressure Sensors Transducers Applications

• GPF/DPF differential pressure monitoring
• EGR (Exhaust Gas Recirculation) systems
• Crankcase ventilation measurement
• Fuel vapor pressure sensing

Pressure Sensors Transducers Procurement Notes

Verify the specific suffix DAD-404-SP against the official Melexis datasheet to confirm the -0.3 to 1.0 bar pressure range and SENT output configuration. Ensure the SMP-4 package type matches the target PCB layout. Confirm that the absence of an NTC input aligns with the system's thermal compensation requirements, as this variant lacks the pre-calibrated thermistor found in other models.

Pressure Sensors Transducers Selection Notes

Select this component when a relative pressure measurement within the -0.3 to 1.0 bar range is required. The SENT interface is suitable for systems needing digital noise immunity and diagnostic capabilities. The PCB-less form factor reduces mechanical integration complexity. Verify that the ASIL B compliance meets the functional safety standards of the target application environment.

Pressure Sensors Transducers Part Context

This part belongs to the MLX90825 series of PCB-less relative pressure sensors. The series is characterized by its integrated MEMS and ASIC technology, offering high accuracy and stability in harsh automotive environments. The MLX90825 family supports various pressure spans and output configurations, including analog and SENT, to address different automotive sensing needs.

Pressure Sensors Transducers Replacement Considerations

Check for other MLX90825 variants with different pressure ranges or NTC options if system requirements change. Ensure any substitute maintains the SENT protocol compatibility and SMP-4 package dimensions for direct replacement.