MLX90329LDC-DBA-000-RE

Sensor And Detector Interfaces Overview

The MLX90329LDC-DBA-000-RE is an automotive sensor interface IC designed for harsh environments, featuring a SENT output. It interfaces with resistive sensors configured as Wheatstone bridges and supports external NTC temperature measurement. The device operates within a supply voltage range of 4.5V to 5.5V, consuming a typical nominal supply current of 10mA. It provides a bridge supply voltage of 3V (±9%) and features a 16-bit ADC resolution. The operating temperature range extends from -40°C to 150°C. Factory-calibrated NTC accuracy is ±1°C, with pressure signal chain accuracy at 0.2% FSO.

Sensor And Detector Interfaces Feature Summary

• SENT output with configurable fast and slow channel messages
• High EMC robustness for harsh automotive environments
• On-chip DSP for pressure linearization and temperature compensation
• Factory calibrated NTC temperature accuracy within ±1°C

Sensor And Detector Interfaces Applications

• Piezoresistive automotive pressure sensors interface
• Sensors based on Wheatstone bridge resistors

Sensor And Detector Interfaces Procurement Notes

Verify the specific ordering suffix DBA-000-RE against the manufacturer's datasheet to confirm package type, temperature grade, and packing form. Ensure compatibility with single-wire serial programming requirements via the output pin. Confirm that the SOIC-8 plastic small outline package meets the mechanical constraints of the target PCB layout.

Sensor And Detector Interfaces Selection Notes

Select this component when a SENT digital output is required for automotive pressure sensing applications. Consider the analog front-end gain settings and filter configurations to match the sensitivity of the connected Wheatstone bridge. Evaluate the need for external NTC calibration if high precision is required beyond the factory default characteristics.

Sensor And Detector Interfaces Part Context

This part belongs to the MLX90329 family of automotive sensor interface ICs. It is specifically engineered to convert small resistance changes in piezoresistive sensing elements into large output voltage variations. The device integrates signal conditioning, including gain adjustment, offset control, and temperature compensation, stored in EEPROM.

Sensor And Detector Interfaces Replacement Considerations

Check Melexis documentation for direct substitutes within the MLX90329 series. Verify pinout compatibility and electrical specifications before replacing existing components.