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Melexis Technologies NV MLX90823GXP-BAF-305-SP
- Part No.:
- MLX90823GXP-BAF-305-SP
- Manufacturer:
- Melexis Technologies NV
- Category:
- Pressure Sensors, Transducers
- Package:
- 4-SIP Module
- Datasheet:
-
MLX90823GXP-BAF-305-SP.pdf
- Description:
- RELATIVE PRESSURE SENSOR WITH AN
- Quantity:
- Payment:
- Shipping:
Inventory:3,046
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Product details
Overview
MLX90823GXP-BAF-305-SP from Melexis is a PCB-less, factory-calibrated relative pressure sensor with ratiometric analog output (0.5–4.5 V), ±0.5% full-scale lifetime accuracy, and -0.017 to 0.345 bar measurement range. It integrates MEMS, CMOS interface IC, and passive components in an SMP7 package, qualified to AEC-Q100 and AEC-Q103-002 for automotive crankcase ventilation and fuel vapor pressure monitoring.
For engineers reviewing the MLX90823GXP-BAF-305-SP datasheet, pinout, applications, or equivalent options, this page delivers verified technical context, calibrated transfer curve details, diagnostic configuration options, ASIL-A safety compliance per ISO 26262, and real-world integration guidance for harsh-media automotive sensing.
Technical Context
The MLX90823GXP-BAF-305-SP implements a DSP-based signal chain with integrated Wheatstone bridge MEMS diaphragm, 16-bit microcontroller for temperature compensation (up to third-order offset/gain), and programmable linearization. Its analog front-end includes filtering and ADC conversion, while digital back-end handles clamping, diagnostics, and EEPROM-stored calibration parameters (O0–O3, G0–G3, L0–L1).
It features dual ground pins (pins 1 and 3), three test pins (5–7), and a ratiometric output referenced to VDD (4.5–5.5 V). Diagnostics include configurable broken-connection detection, over/under-voltage flags (default 5.7 V / 4.3 V), and internal fault reporting via Upper/Lower Fault Bands (0–3%VDD / 97–100%VDD).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Pressure Range | -0.017 to 0.345 bar relative - enables precise low-differential monitoring in crankcase ventilation systems. |
| Output Signal | 0.5–4.5 V ratiometric analog - scales linearly with supply voltage, eliminating need for external reference. |
| Accuracy | ±0.5% FS lifetime accuracy - ensures long-term stability without recalibration in automotive under-hood environments. |
| Response Time | 0.4 ms (fastest) - supports dynamic pressure event capture in engine management applications. |
| Operating Temp | -40°C to +160°C (170°C short-term) - validated for continuous use in high-temperature powertrain locations. |
| EMC Compliance | OEM-grade EMC performance - achieved via integrated 47nF/100nF/100nF passive network, no external filtering required. |
| Safety Certification | ASIL-A SEooC per ISO 26262 - provides certified safety element for functional safety architectures without additional qualification effort. |
Pinout & Package
SMP7 package: 7-pin, PCB-less molded module with ridges for glue-based pressure sealing; dimensions 7.0 × 5.5 × 3.2 mm (L×W×H); bottom-side gel port for pressure media exposure.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Ground (GND) | Primary ground connection; either pin 1 or 3 may be used - simplifies layout with single-point grounding. |
| 2 | Analog Output | Ratiometric voltage output (0.5–4.5 V); internally buffered with 100 nF capacitor - eliminates need for external decoupling. |
| 3 | Ground (GND) | Secondary ground option; electrically identical to pin 1 - allows redundancy or mechanical strain relief routing. |
| 4 | Supply Input (VDD) | 4.5–5.5 V nominal supply; supports ±40 V over/under-voltage protection - withstands load-dump and reverse-battery conditions. |
| 5–7 | Test Pins | Factory programming and diagnostics interface; not user-accessible in final application - reserved for PTC04 tool calibration and validation. |
Key Features
| Feature | Design Value |
|---|---|
| PCB-less integrated package | Eliminates board-level assembly; ridged housing enables direct gluing to metal housings for hermetic pressure coupling. |
| Factory-calibrated transfer curve | Pre-programmed P1 = -0.017 bar / P2 = 0.345 bar, O1 = 0.5 V / O2 = 4.5 V - reduces system-level calibration time and cost. |
| Configurable diagnostics | EEPROM-programmable fault sources (e.g., supply OV/UV, broken membrane) with selectable Low/High Fault Band mapping - enables application-specific failure response. |
| Harsh-media resistance | Validated against halogens and acids - suitable for direct exposure to crankcase vapors and fuel vapor without protective coating. |
| ASIL-A SEooC development | Delivers certified safety evidence (FMEDA, FTT, safety manual) - accelerates ISO 26262 integration into ECU safety plans. |
Applications
| Crankcase Ventilation Monitoring | Fuel Vapor Pressure Sensing |
|---|---|
Use Scenario: Real-time detection of abnormal pressure buildup in engine crankcase due to blow-by gases. IC Role / Device Role / Timing Role: Relative pressure transducer measuring differential pressure between crankcase and ambient atmosphere. Use Value: Enables early detection of piston ring wear or PCV valve failure, supporting predictive maintenance and emissions compliance. |
Use Scenario: Monitoring vapor pressure inside fuel tank during refueling and thermal expansion cycles. IC Role / Device Role / Timing Role: Low-range analog pressure sensor interfacing directly with EVAP control module. Use Value: Supports onboard refueling vapor recovery (ORVR) and leak detection (LDI) with ±0.017–0.345 bar full-scale resolution. |
| Engine Oil Filter Clogging Detection | Brake Booster Vacuum Monitoring |
Use Scenario: Tracking pressure drop across oil filter to identify clogging before oil flow restriction impacts engine lubrication. IC Role / Device Role / Timing Role: Differential pressure sensor mounted across filter inlet/outlet ports. Use Value: Provides accurate, drift-free ΔP measurement at low flow rates - critical for extended oil change intervals. |
Use Scenario: Measuring vacuum level in brake booster reservoir to ensure sufficient assist pressure during braking events. IC Role / Device Role / Timing Role: Absolute-referenced relative pressure sensor detecting vacuum loss from leaks or pump degradation. Use Value: Delivers fast 0.4 ms response and ASIL-A compliance - essential for active brake system safety integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar relative pressure sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MLX90821GXP-BAF-305-RE | Same SMP7 package and pressure range (-0.017 to 0.345 bar), but lacks ASIL-A SEooC certification and diagnostic configurability. | Targeted at non-safety-critical HVAC or industrial monitoring where functional safety is not mandated. | Select MLX90821GXP-BAF-305-RE only if ISO 26262 compliance and programmable diagnostics are unnecessary. |
| MPXV7025GP | Legacy Freescale analog sensor; 0–25 kPa range (0–0.25 bar), ±5% FS accuracy, no integrated diagnostics or ASIL support. | Used in legacy automotive designs with lower accuracy requirements and no safety architecture integration. | MLX90823GXP-BAF-305-SP offers 10× better accuracy, built-in diagnostics, and safety certification - upgrade recommended for new designs. |
Compared with MLX90821GXP-BAF-305-RE and MPXV7025GP, the MLX90823GXP-BAF-305-SP uniquely combines AEC-Q103-002 qualification, ASIL-A SEooC status, factory-programmed low-range transfer curve, and configurable diagnostics - making it the only drop-in solution for safety-critical, high-accuracy crankcase and fuel vapor sensing.
Availability
MLX90823GXP-BAF-305-SP is available at Aetrix Electronics and suitable for automotive crankcase ventilation, fuel vapor pressure monitoring, and brake booster vacuum sensing requiring stable component supply, long-lifecycle assurance, and AEC-compliant traceability.
Supply support for MLX90823GXP-BAF-305-SP includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Melexis is a Belgian semiconductor company specializing in magnetic, infrared, and pressure sensors for automotive and industrial markets, with design centers in Europe and Asia.
The MLX90823 product line delivers fully integrated, AEC-qualified relative pressure sensors targeting harsh-environment automotive applications including powertrain, emissions control, and chassis systems.
FAQ
What is the calibrated pressure range of the MLX90823GXP-BAF-305-SP?
The MLX90823GXP-BAF-305-SP is factory calibrated for a relative pressure range of -0.017 bar to +0.345 bar, with corresponding analog output spanning 0.5 V to 4.5 V. This narrow, low-differential span is optimized for crankcase ventilation and fuel vapor pressure sensing, and the calibration parameters are stored in on-chip EEPROM.
Does the MLX90823GXP-BAF-305-SP require external passive components for operation?
No, the MLX90823GXP-BAF-305-SP integrates all required passives - including 47 nF (C1), 100 nF (C2), and 100 nF (C3) capacitors - within its SMP7 package. This eliminates external filtering components and ensures OEM-grade EMC performance without layout-dependent tuning.
How is the MLX90823GXP-BAF-305-SP programmed and calibrated?
The MLX90823GXP-BAF-305-SP is factory calibrated and fully programmable via its test pins (5–7) using the Melexis PTC04 programming tool. Calibration curves, diagnostic thresholds, and temperature compensation coefficients (O0–O3, G0–G3) are written to on-chip EEPROM during production or field reconfiguration.
What safety standard compliance does the MLX90823GXP-BAF-305-SP provide?
The MLX90823GXP-BAF-305-SP is developed as an ASIL-A Safety Element out of Context (SEooC) per ISO 26262, with full FMEDA, safety manual, and hardware/software safety analysis documentation provided by Melexis. It is also qualified to AEC-Q100 (Grade 0) and AEC-Q103-002 for pressure sensors.
Can both GND pins (1 and 3) be connected simultaneously on the MLX90823GXP-BAF-305-SP?
Yes, both GND pins (1 and 3) may be connected, though only one is required for proper operation. Connecting both improves mechanical robustness and current-handling capability in high-vibration environments, and introduces no electrical conflict since they are internally tied to the same ground net.
MLX90823GXP-BAF-305-SP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Melexis Technologies NV
- Series:
- -
- Package/Case:
- 4-SIP Module
- Packaging:
- Bag
- Product Status:
- Active
- Applications:
- Board Mount
- Pressure Type:
- Differential
- Operating Pressure:
- -0.25PSI ~ 5PSI (-1.7kPa ~ 34.5kPa)
- Output Type:
- Analog Voltage
- Output:
- 0.5 V ~ 4.5 V
- Accuracy:
- ±0.5%
- Voltage - Supply:
- 4.5V ~ 5.5V
- Port Size:
- -
- Port Style:
- No Port
- Features:
- Temperature Compensated
- Termination Style:
- -
- Maximum Pressure:
- 72.52PSI (500kPa)
- Operating Temperature:
- -40°C ~ 160°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- SMP-4
MLX90823GXP-BAF-305-SP FAQ
1.How can I place an order for MLX90823GXP-BAF-305-SP through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90823GXP-BAF-305-SP on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MLX90823GXP-BAF-305-SP reliable?
The price and inventory of MLX90823GXP-BAF-305-SP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MLX90823GXP-BAF-305-SP is usually 5 days.
3.What payment methods are accepted for MLX90823GXP-BAF-305-SP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90823GXP-BAF-305-SP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90823GXP-BAF-305-SP?
MLX90823GXP-BAF-305-SP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90823GXP-BAF-305-SP order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MLX90823GXP-BAF-305-SP?
For technical support, including MLX90823GXP-BAF-305-SP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90823GXP-BAF-305-SP requirements.
6.How does Aetrix verify that MLX90823GXP-BAF-305-SP is sourced from the original manufacturer or authorized distributors?
All MLX90823GXP-BAF-305-SP products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MLX90823GXP-BAF-305-SP meets industry standards.
7.What is the process for return or replacement of MLX90823GXP-BAF-305-SP?
All MLX90823GXP-BAF-305-SP units undergo pre-shipment inspection (PSI). If there is an issue with MLX90823GXP-BAF-305-SP, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MLX90823GXP-BAF-305-SP part is unused and in its original packaging.
Return procedure for MLX90823GXP-BAF-305-SP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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