MLX90329LDC-DBA-000-SP

Sensor And Detector Interfaces Overview

The MLX90329LDC-DBA-000-SP is an automotive-grade sensor interface IC designed for piezoresistive pressure sensors. It features a SENT output with options for pressure, calibrated on-chip or external NTC temperature information. The device operates within a temperature range of -40°C to +150°C and utilizes a SOIC-8 package. Key electrical specifications include a nominal supply voltage of 5V (range 4.5V to 5.5V), typical supply current of 10mA, and a bridge supply voltage of 3V. It supports a Wheatstone bridge resistance range of 2kΩ to 32kΩ and offers a 16-bit ADC resolution. Factory-calibrated NTC accuracy is ±1°C.

Sensor And Detector Interfaces Feature Summary

• High EMC robustness suitable for harsh automotive environments
• SENT output with configurable fast and slow channel messages
• Integrated signal conditioning including gain adjustment and temperature compensation
• Supports both internal PTAT and external NTC temperature sensing

Sensor And Detector Interfaces Applications

• Piezoresistive automotive pressure sensors interface
• Sensors based on Wheatstone bridge resistors
• Automotive engine management systems requiring pressure monitoring

Sensor And Detector Interfaces Procurement Notes

Verify the specific ordering suffix DBA-000 corresponds to the required calibration and configuration parameters. Confirm the packing form RE indicates reel packaging if automated assembly is planned. Ensure compatibility with the target automotive environment requirements regarding temperature and EMC standards before finalizing procurement.

Sensor And Detector Interfaces Selection Notes

Select this component when interfacing with piezoresistive sensors requiring SENT output. Consider the analog front-end gain settings and filter configurations (PFLT, SSF) to optimize noise versus response time trade-offs. Verify that the bridge resistance matches the available selection options (2k, 4k, 8k, 32k) for accurate temperature compensation.

Sensor And Detector Interfaces Part Context

The MLX90329 belongs to Melexis' automotive sensor interface family, specifically designed for resistive sensor types. It complements other interface solutions by providing high accuracy and diagnostic capabilities through its integrated DSP and EEPROM. The LDC code denotes the SOIC-8 package and extended temperature range, distinguishing it from other package variants in the series.

Sensor And Detector Interfaces Replacement Considerations

Check for direct pin-compatible alternatives within the MLX90328 or MLX90329 series if different output types (e.g., analog) are acceptable. Verify that any substitute maintains the SENT protocol compliance and automotive qualification status.