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Melexis Technologies NV MLX90825GXP-DAD-400-SP
- Part No.:
- MLX90825GXP-DAD-400-SP
- Manufacturer:
- Melexis Technologies NV
- Category:
- Pressure Sensors, Transducers
- Package:
- 4-SIP Module
- Datasheet:
-
MLX90825GXP-DAD-400-SP.pdf
- Description:
- RELATIVE PRESSURE SENSOR WITH SE
- Quantity:
- Payment:
- Shipping:
Inventory:1,708
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Product details
Overview
MLX90825GXP-DAD-400-SP from Melexis is a factory-calibrated relative pressure sensor with SENT digital output, designed for automotive crankcase ventilation and fuel vapor pressure monitoring. It delivers ±0.5% full-scale lifetime accuracy over –40°C to 160°C, supports –0.2 to 0.8 bar pressure range, and integrates MEMS, interface IC, and passive components in an SMP7 package compliant with AEC-Q100 and AEC-Q103-002.
For engineers reviewing the MLX90825GXP-DAD-400-SP datasheet, pinout, applications, or equivalent options, key selection criteria include SENT protocol compliance (SAE J2716 Apr 2016), master-mode operation with dual-pressure capability, ASIL B SEooC safety qualification, extended voltage tolerance (±40 V), and NTC temperature linearization support via configurable fast channel 2.
Technical Context
The MLX90825GXP-DAD-400-SP operates as a master device in differential pressure configurations, using a 16-bit DSP-based interface IC to perform real-time temperature compensation, pressure linearization, and SENT frame generation. Its analog front-end includes piezoresistive Wheatstone bridge sensing, PTAT internal temperature reference, and dedicated NTC input circuitry with programmable 20 Ω–1 MΩ resistance range.
It implements SENT Fast Channel 1 for primary pressure data (3×4-bit) and Fast Channel 2 for secondary pressure (e.g., slave device output), enabling synchronized dual-sensor systems without external arbitration. Diagnostics-including over/under-voltage detection, output clamping (1–4088 LSB), and proof pressure up to 5 bar-are fully programmable via EEPROM using the PTC04 tool.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Pressure Range | –0.2 to 0.8 bar relative pressure; enables crankcase ventilation monitoring with bidirectional flow detection. |
| Output Accuracy | ±0.5% FS lifetime accuracy; ensures long-term stability in harsh under-hood environments without recalibration. |
| SENT Compliance | SAE J2716 rev. Apr 2016; guarantees interoperability with standard automotive ECUs and diagnostic tools. |
| Operating Temp | –40°C to 160°C continuous; supports short-duration exposure up to 170°C for transient thermal events. |
| Supply Voltage | 4.5–5.5 V nominal; ±40 V over/under-voltage protection eliminates need for external TVS diodes. |
| EMC Qualification | Validated per leading OEM EMC standards; integrated passive components (C1–C4, R1–R2) reduce board-level filtering requirements. |
| Safety Certification | ASIL B SEooC per ISO 26262; enables integration into safety-critical powertrain and emissions control systems. |
Pinout & Package
MLX90825GXP-DAD-400-SP uses the SMP7 surface-mount package (7-pin, bottom-view layout), featuring ridges for direct glue-based pressure sealing and no PCB requirement. The package integrates MEMS die, CMOS interface IC, and passive components (C1=100nF, C2=10nF, C3=2.2nF, C4=100nF, R1=2.7kΩ, R2=5.6kΩ).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | SENT output | Digital SENT signal output (master mode); drives ECU-compatible SENT receiver with 3 µs tick time and optional pause pulse. |
| 2 | Ground (GND) | Common reference for supply, SENT driver, and NTC measurement; low-impedance return path for EMC robustness. |
| 3 | Supply input (VDD) | Primary power input; supports 4.5–5.5 V operation with ±40 V fault tolerance and 12 mA typical current draw. |
| 4 | NTC input | Analog input for external NTC thermistor; enables linearized temperature reporting in Fast Channel 2 with 18–22 ms update time. |
| 5–7 | Test pins | Factory programming and test access points; not intended for end-user connection or system functionality. |
Key Features
| Feature | Design Value |
|---|---|
| All-in-one integrated package | MEMS sensor, CMOS interface IC, and six passive components co-packaged in SMP7-eliminates external BOM items and reduces layout complexity. |
| Configurable SENT fast channels | FC1 carries primary pressure (3×4-bit); FC2 carries secondary pressure from slave device-enables differential pressure computation in ECU without additional sensors. |
| Factory-calibrated & programmable | EEPROM stores pressure transfer curve (P1/P2/O1/O2), temperature compensation coefficients (O0–O3, G0–G3), and diagnostics thresholds-field reprogrammable via PTC04 connector. |
| Harsh media resistance | Validated against halogens and acids; suitable for direct mounting in fuel vapor and crankcase gas environments without protective housing. |
| Extended voltage protection | Withstands +40 V overvoltage and –40 V reverse voltage on both supply and SENT output lines-reduces system-level protection component count. |
Applications
| Automotive Crankcase Ventilation Monitoring | Fuel Vapor Pressure Sensing |
|---|---|
|
Use Scenario: Real-time detection of abnormal pressure buildup in engine crankcase due to blow-by gases, triggering PCV valve actuation or warning indicators. IC Role / Device Role / Timing Role: Master node in dual-sensor configuration, transmitting primary crankcase pressure via SENT Fast Channel 1 and secondary reference pressure via Fast Channel 2. Use Value: Enables closed-loop crankcase pressure control with ±5 mbar accuracy across –40°C to 160°C, meeting OEM durability and emissions requirements. |
Use Scenario: Monitoring evaporative emissions system (EVAP) integrity by measuring fuel tank vapor pressure during leak detection routines. IC Role / Device Role / Timing Role: Relative pressure transducer with SENT output synchronized to ECU diagnostic timing windows; supports fast-channel pressure updates every 0.528 ms. Use Value: Delivers ±0.5% FS accuracy and 3-frame pressure response time, ensuring reliable pass/fail determination in OBD-II EVAP tests. |
| Engine Oil Filter Differential Pressure | Brake Booster Vacuum Monitoring |
|
Use Scenario: Detecting clogged oil filters by measuring pressure drop across filter media during engine operation. IC Role / Device Role / Timing Role: Standalone or master sensor providing calibrated relative pressure output with clamping (1–4088 LSB) to prevent ECU misinterpretation during startup transients. Use Value: Maintains ±0.5% FS accuracy over life without recalibration, reducing maintenance intervals and enabling predictive filter replacement. |
Use Scenario: Monitoring vacuum level in brake booster reservoir to ensure sufficient assist pressure for ABS and emergency braking functions. IC Role / Device Role / Timing Role: ASIL B–qualified pressure sensor delivering SENT output with diagnostic status bits (over/under-voltage, out-of-range) for functional safety validation. Use Value: Supports ISO 26262 ASIL B requirements with built-in diagnostics and 170°C short-duration rating for under-hood placement near master cylinder. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar relative pressure sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MLX90825GXP-DAD-300-RE | Standalone variant with identical –0.2 to 0.8 bar range and SENT output; lacks master-mode dual-channel capability and UART slave interface support. | Used in single-sensor applications where differential pressure computation is performed externally; no requirement for synchronized slave device communication. | Select when system architecture uses only one pressure point and does not require coordinated multi-sensor data fusion. |
| MLX90825GXP-DAD-404-RE | Master variant with extended –0.3 to 1.0 bar range and ±6.5 mbar pressure accuracy; same SMP7 package, SENT protocol, and ASIL B qualification. | Targeted at higher-span applications such as turbocharger boost monitoring or advanced EVAP testing requiring wider dynamic range. | Select when pressure span exceeds 0.8 bar or when tighter absolute error tolerance (±6.5 mbar vs. ±5 mbar) is required for regulatory compliance. |
Compared with MLX90825GXP-DAD-300-RE and MLX90825GXP-DAD-404-RE, the MLX90825GXP-DAD-400-SP provides optimal balance of dual-sensor coordination capability, industry-standard 0.8 bar span, and ASIL B–compliant diagnostics-making it the preferred choice for OEM crankcase and fuel vapor systems requiring master-slave synchronization without range extension.
Availability
MLX90825GXP-DAD-400-SP is available at Aetrix Electronics and suitable for automotive crankcase ventilation monitoring, fuel vapor pressure sensing, and brake booster vacuum monitoring requiring stable component supply, AEC-Q100/Q103 qualification, and ASIL B safety compliance.
Supply support for MLX90825GXP-DAD-400-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 sensor solutions for automotive and industrial markets, with design centers in Europe and manufacturing partnerships globally.
The MLX90825 product line delivers high-accuracy, system-ready relative pressure sensing for automotive powertrain and emissions control applications, integrating MEMS, signal processing, and robust packaging to eliminate calibration and filtering overhead at module level.
FAQ
What is the pressure measurement range and accuracy of the MLX90825GXP-DAD-400-SP?
The MLX90825GXP-DAD-400-SP measures relative pressure from –0.2 to 0.8 bar with ±0.5% full-scale lifetime accuracy and ±5 mbar typical pressure accuracy across its operating temperature range. This specification is validated per AEC-Q100 and maintained over life without field recalibration, making MLX90825GXP-DAD-400-SP suitable for critical automotive applications like crankcase ventilation monitoring where long-term drift must be minimized.
How does the MLX90825GXP-DAD-400-SP differ from standalone variants like MLX90825GXP-DAD-300-RE?
The MLX90825GXP-DAD-400-SP operates in master mode, supporting synchronized dual-sensor configurations via SENT Fast Channel 2 for secondary pressure data-unlike standalone MLX90825GXP-DAD-300-RE, which outputs only primary pressure. MLX90825GXP-DAD-400-SP also enables UART-based communication with slave devices, allowing distributed pressure sensing architectures without additional interface ICs.
Is the MLX90825GXP-DAD-400-SP qualified for automotive safety applications?
Yes, the MLX90825GXP-DAD-400-SP is developed as an ASIL B Safety Element out of Context (SEooC) per ISO 26262, with documented safety mechanisms including over/under-voltage detection, output clamping, and diagnostic status bits. It is also qualified to AEC-Q100 Grade 0 and AEC-Q103-002, confirming suitability for under-hood deployment in safety-critical powertrain and emissions systems.
Can the MLX90825GXP-DAD-400-SP interface with an external NTC thermistor?
Yes, the MLX90825GXP-DAD-400-SP includes a dedicated NTC input (Pin 4) supporting 20 Ω–1 MΩ thermistors, with on-chip 16-bit DSP linearization using default or custom NTC characteristics. Temperature data can be transmitted in SENT Fast Channel 2, updated every 18–22 ms, enabling simultaneous pressure and temperature reporting without external signal conditioning.
What packaging and mounting features does the MLX90825GXP-DAD-400-SP offer?
The MLX90825GXP-DAD-400-SP uses the SMP7 package-a PCB-less, surface-mount housing with molded ridges for direct adhesive sealing to pressure ports. This eliminates PCB assembly steps and improves media isolation. The package integrates all passive components (C1–C4, R1–R2) and meets stringent OEM EMC requirements without external filtering components.
MLX90825GXP-DAD-400-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:
- 2.9PSI ~ 11.6PSI (20kPa ~ 80kPa)
- Output Type:
- SENT
- Output:
- 12 b
- 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
MLX90825GXP-DAD-400-SP FAQ
1.How can I place an order for MLX90825GXP-DAD-400-SP through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90825GXP-DAD-400-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 MLX90825GXP-DAD-400-SP reliable?
The price and inventory of MLX90825GXP-DAD-400-SP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MLX90825GXP-DAD-400-SP is usually 5 days.
3.What payment methods are accepted for MLX90825GXP-DAD-400-SP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90825GXP-DAD-400-SP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90825GXP-DAD-400-SP?
MLX90825GXP-DAD-400-SP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90825GXP-DAD-400-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 MLX90825GXP-DAD-400-SP?
For technical support, including MLX90825GXP-DAD-400-SP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90825GXP-DAD-400-SP requirements.
6.How does Aetrix verify that MLX90825GXP-DAD-400-SP is sourced from the original manufacturer or authorized distributors?
All MLX90825GXP-DAD-400-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 MLX90825GXP-DAD-400-SP meets industry standards.
7.What is the process for return or replacement of MLX90825GXP-DAD-400-SP?
All MLX90825GXP-DAD-400-SP units undergo pre-shipment inspection (PSI). If there is an issue with MLX90825GXP-DAD-400-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 MLX90825GXP-DAD-400-SP part is unused and in its original packaging.
Return procedure for MLX90825GXP-DAD-400-SP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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