MLX90821LXG-DBA-003-RE

MLX90821 Relative Pressure Sensor IC Features and Benefits Application Examples High accuracy relative pressure sensor Fuel vapor pressure sensor Ratiometric analog output or digital SENT output Crankcase ventilation pressure sensor with optional compensated 1C accurate NTC Pressure sensor for filter monitoring temperature information System in a package: MEMS, analog front end circuitry, 16 bit microcontroller, analog back end circuitry, voltage regulators Large automotive temperature range (-40C to 150C) Automotive qualified and automotive diagnostic features (clamping levels, broken track diagnostics, multiple internal fault diagnostics) Factory calibrated or fully programmable or reconfigurable through the connector for customized calibration curves Back side exposed relative pressure sensor for higher resistance to common automotive media Assembled in a robust easy to seal package Ordering Information Product Code Temperature Package Option Code Packing Code Code Form Code RE MLX90821 L XG DBA-003 MLX90821 L XG DBA-005 RE MLX90821 L XG DBA-006 RE MLX90821 L XG DBA-007 RE MLX90821 V XG DBA-008 RE MLX90821 L XG DBA-100 RE Legend: Temperature Code: L = -40C to 150C V = -40C to 115C Package Code: XG = SOIC16 WB cavity package Option Code: DBA-003 = -0.06 to 0.26bar relative pressure / 0.5V to 4.5V analog output DBA-005 = -0.05 to 0.05bar relative pressure / 0.5V to 4.5V analog output DBA-006 = -0.2 to 0.5bar relative pressure / 4.5V to 0.5V analog output DBA-007 = -0.1 to 0.1bar relative pressure / 0.5V to 4.5V analog output DBA-008 = -0.0375 to 0.0125 bar relative pressure / 4.5 V to 0.5 V analog output DBA-100 = -0.06 to 0.26bar relative pressure / 193 to 3896LSB SENT output Packing Form: RE = Reel Ordering example: MLX90821LXG-DBA-003-RE REV 004 4 MAR 2021 Page 1 of 40 3901090821 MLX90821 Relative Pressure Sensor IC General Description Functional Diagram The MLX90821 is a packaged, factory calibrated, relative pressure sensor delivering a ratiometric DSP Overvoltage & Vsupply reverse voltage Divided bridge Sensor bias 6/7 VDDA current protection Off chip temperature IV conversion Voltage regulator analog output or a digital signal using the SENT sensor current output Gain & Offset POR Temperature On chip temperature Compensation sensor Piezoresistive protocol. sensing element Pressure Linearization Vbrg PGA Analog Vana DAC Using a best in class MEMS sensor enables reliably Gain 12 bits InP M Programmable Filter Output U ADC OPA 16 bits X and accurately measuring very low pressures of a SENT Rom InN InP, InN, VEXT Output few tenths of millibars. An optimized architecture EEPROM Test Test NTC External NTC and a high density CMOS technology imparts the interface Input Ram Oscillator Gnd MLX90821 with best in class automotive EMC performance. A DSP based architecture using a 16bit microcontroller provides outstanding performance Figure 1: Functional block diagram in terms of initial accuracy of both pressure and optionally external NTC temperature. A smart package and die assembly concept suits applications with stringent automotive temperature and stress conditions needing small drift over life. REV 004 4 MAR 2021 Page 2 of 40 3901090821