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Melexis Technologies NV MLX90817LXE-DBG-013-RE
- Part No.:
- MLX90817LXE-DBG-013-RE
- Manufacturer:
- Melexis Technologies NV
- Category:
- Pressure Sensors, Transducers
- Package:
- 14-BFDFN Exposed Pad
- Datasheet:
-
MLX90817LXE-DBG-013-RE.pdf
- Description:
- SENSOR 14DFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,894
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Product details
Overview
MLX90817LXE-DBG-013-RE from Melexis is an automotive-grade absolute pressure sensor IC with integrated MEMS sensing element, 16-bit microcontroller, analog front end, and ratiometric analog output. It delivers factory-calibrated 0.2–3 bar absolute pressure measurement with 0.4–4.65 V output, ±33 mBar total accuracy over –40°C to +150°C, and operates from 4.5–5.5 V supply. It is used in turbo manifold air pressure monitoring for engine control units.
For engineers reviewing the MLX90817LXE-DBG-013-RE datasheet, pinout, applications, or equivalent options, key selection considerations include its DFN14 package, programmable clamping levels (0 V / 5 V), diagnostic support (broken track, over/under-voltage), and configurable digital filters for noise vs. response time trade-offs.
Technical Context
The MLX90817LXE-DBG-013-RE implements a piezoresistive Wheatstone bridge sensing element bonded to a vacuum cavity, with signal conditioning via a 3-stage programmable analog front end (gain range –9.0 to –237.4 V/V) and 16-bit differential ADC. Its DSP-based architecture performs real-time temperature compensation using third-order polynomial coefficients stored in EEPROM for both gain and offset.
Diagnostics include active broken-track detection on supply and ground lines, clamping-level programmability (7-bit low, 9-bit high), and configurable Small Signal Filter (SSF) plus first-order programmable low-pass filter (PFLT = 0–9). The device supports ratiometric output scaling and features overvoltage (18 V) and reverse-voltage (–14 V) protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Pressure Range | 0.2 to 3 bar absolute - matches intake manifold pressure under boosted conditions in gasoline/diesel engines |
| Analog Output Range | 0.4 V to 4.65 V - ratiometric to supply voltage, enabling direct ADC interfacing without external scaling |
| Total Pressure Accuracy | ±33 mBar - includes initial error, temperature drift, and linearity across full operating range |
| Operating Temperature | –40°C to +150°C - qualified for under-hood automotive placement near turbochargers or intake manifolds |
| Supply Voltage | 4.5 V to 5.5 V - compatible with standard automotive 5 V regulators; includes POR thresholds at 3.1–3.9 V (analog) and 2.05–2.7 V (digital) |
| Response Time | 1 ms (PFLT = 0) - sufficient for transient boost pressure tracking; configurable up to 203.8 ms for noise suppression |
| Diagnostic Coverage | Broken track, over/under-voltage, over/under-pressure - enables ASIL-B–capable fault reporting via rail-driven output clamping |
Pinout & Package
MLX90817LXE-DBG-013-RE is housed in a rugged, surface-mount DFN14 (4 mm × 5 mm, 0.5 mm pitch) package optimized for harsh automotive environments. The package includes exposed thermal pad for enhanced heat dissipation and stress relief under thermal cycling.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 5 | Test pin | Factory programming and calibration access; not intended for user connection in final application |
| 7 | Vsupply | Main power input (4.5–5.5 V); includes overvoltage (18 V) and reverse-voltage (–14 V) protection |
| 8 | Vana (Analog Output) | Ratiometric analog output (0.4–4.65 V); actively driven to rails during diagnostics (e.g., open GND) |
| 10, 14 | Gnd | Power and analog reference ground; dual pins reduce impedance and improve EMC robustness |
| 2, 4, 6, 9, 11, 12, 13 | Not Connected | No internal connection; must remain unconnected on PCB to avoid parasitic coupling or mechanical stress |
Key Features
| Feature | Design Value |
|---|---|
| Integrated MEMS + ASIC System-in-Package | Eliminates external signal conditioning, calibration, and temperature compensation circuitry - reduces BOM count and layout area |
| Programmable Clamping Levels | Configurable low/high clamp (0 V / 5 V) enables deterministic fault signaling without external comparators or pull resistors |
| EEPROM-Based Calibration | Factory-programmed transfer curve and temperature compensation coefficients allow drop-in replacement without system recalibration |
| Automotive Diagnostics | Built-in broken-track, over/under-voltage, and over/under-pressure detection meets ISO 26262 functional safety requirements for ASIL-B systems |
| EMC-Optimized Architecture | High-density CMOS design and on-chip protection deliver best-in-class automotive EMC performance per ISO 11452 and ISO 7637 |
Applications
| Manifold Absolute Pressure (MAP) Sensing | Turbocharger Boost Control |
|---|---|
Use Scenario: Real-time monitoring of intake manifold pressure in port-fuel-injected and direct-injection gasoline engines for air mass calculation and spark timing adjustment. IC Role / Device Role / Timing Role: Primary absolute pressure transducer delivering calibrated analog output synchronized to ECU sampling clock (200 µs update rate). Use Value: Enables stoichiometric combustion control with ±33 mBar accuracy across –40°C to +150°C, reducing emissions and improving fuel economy. | Use Scenario: Closed-loop feedback for variable geometry turbocharger (VGT) actuators in diesel and high-performance gasoline engines. IC Role / Device Role / Timing Role: High-bandwidth pressure sensor providing 1 ms response (PFLT=0) to detect rapid boost transients during throttle tip-in or gear shifts. Use Value: Supports precise boost pressure regulation within ±0.1 bar tolerance, preventing overboost and protecting engine components. |
| LPG/CNG Fuel Injection Monitoring | Engine Crankcase Pressure Monitoring |
Use Scenario: Measuring absolute pressure upstream of LPG or CNG injectors to calculate fuel mass flow and compensate for tank pressure variation. IC Role / Device Role / Timing Role: Ratiometric analog sensor interfaced directly to 12-bit+ ECU ADC; output scales with supply rail for stable readings despite battery voltage fluctuations. Use Value: Maintains accurate fuel metering across 0.2–3 bar range and full automotive temperature span, critical for emissions compliance in alternative-fuel vehicles. | Use Scenario: Detecting abnormal crankcase pressure rise indicating piston ring wear, head gasket failure, or PCV system blockage in ICE powertrains. IC Role / Device Role / Timing Role: Low-range absolute pressure monitor (0.2–3 bar) with diagnostic-ready output clamping for fault flagging in OBD-II systems. Use Value: Provides early warning of mechanical degradation via pressure trend analysis, supporting predictive maintenance without added sensors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar absolute pressure sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPX5700AC6U | 700 kPa range, 0.2–4.8 V output, no integrated microcontroller or diagnostics; requires external compensation | Lacks automotive diagnostics, programmable filtering, and EEPROM calibration - suitable only for non-safety-critical industrial use | Select when cost sensitivity outweighs functional safety and calibration stability requirements |
| INFINEON DPS368 | I²C digital output, 0.01–1260 kPa range, 24-bit resolution, no analog output or clamping diagnostics | Requires host MCU for processing and fault handling; incompatible with legacy analog-input ECUs | Select for new designs with digital interfaces and software-defined diagnostics, not for analog-output retrofit |
Compared with MPX5700AC6U and INFINEON DPS368, the MLX90817LXE-DBG-013-RE provides plug-and-play analog integration, built-in ASIL-B–ready diagnostics, and guaranteed accuracy over life without host processor dependency - making it optimal for production automotive ECU designs requiring zero calibration overhead and deterministic fault behavior.
Availability
MLX90817LXE-DBG-013-RE is available at Aetrix Electronics and suitable for turbocharged engine control, LPG/CNG fuel injection, and crankcase pressure monitoring requiring stable component supply, long-term automotive lifecycle support, and traceable sourcing.
Supply support for MLX90817LXE-DBG-013-RE 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 sensor and driver ICs for automotive and industrial applications, with expertise in magnetic, pressure, and infrared sensing technologies.
The MLX90817 product line delivers fully integrated, automotive-qualified absolute pressure sensors targeting engine management, turbo control, and alternative-fuel systems where high accuracy, robust diagnostics, and extended temperature operation are mandatory.
FAQ
What is the pressure range and output voltage specification for MLX90817LXE-DBG-013-RE?
The MLX90817LXE-DBG-013-RE is configured for 0.2–3 bar absolute pressure measurement with a ratiometric analog output spanning 0.4 V to 4.65 V at nominal 5 V supply. This range is factory-programmed into EEPROM and supports direct interface with standard 12-bit or higher automotive ADCs without external scaling. The output remains strictly proportional to VDD, ensuring consistent resolution across supply variations.
Does MLX90817LXE-DBG-013-RE support diagnostic functions required for ASIL-B compliance?
Yes, MLX90817LXE-DBG-013-RE includes multiple hardware-level diagnostics required for ASIL-B: broken-track detection on supply and ground lines, over/under-voltage monitoring, over/under-pressure flags, and programmable output clamping. These functions operate autonomously without host intervention and drive the analog output to defined rail voltages (0 V or 5 V) during faults - enabling immediate ECU-level fault classification per ISO 26262.
Can MLX90817LXE-DBG-013-RE be reprogrammed in-system for custom calibration curves?
Yes, MLX90817LXE-DBG-013-RE supports full in-system reprogramming via its dedicated test pins and communication protocol. Users can update EEPROM-stored parameters including pressure transfer curve coefficients, temperature compensation polynomials (up to third order), filter settings (PFLT/SSF), and clamping thresholds - all without removing the device from the PCB or requiring specialized test fixtures.
What is the typical response time of MLX90817LXE-DBG-013-RE and how is it adjusted?
The MLX90817LXE-DBG-013-RE achieves a minimum response time of 1 ms (90% settling) with PFLT = 0 and SSF disabled. Response time is increased programmably up to 203.8 ms by adjusting the PFLT register (0–9) in EEPROM to trade bandwidth for noise reduction. SSF can be enabled independently to suppress small-signal noise without affecting step response - ideal for noisy under-hood environments.
Is MLX90817LXE-DBG-013-RE qualified for under-hood automotive use, and what is its temperature rating?
Yes, MLX90817LXE-DBG-013-RE is AEC-Q100 qualified and rated for continuous operation from –40°C to +150°C ambient. Its DFN14 package, MEMS die assembly, and on-chip thermal compensation ensure <±33 mBar total pressure accuracy across this full range - validated for placement directly on intake manifolds, turbo housings, and other high-thermal-stress locations in modern powertrains.
MLX90817LXE-DBG-013-RE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Melexis Technologies NV
- Series:
- -
- Package/Case:
- 14-BFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- Board Mount
- Pressure Type:
- Absolute
- Operating Pressure:
- -
- Output Type:
- Analog Voltage
- Output:
- -
- Accuracy:
- -
- Voltage - Supply:
- 4.5V ~ 5.5V
- Port Size:
- -
- Port Style:
- No Port
- Features:
- Amplified Output, Temperature Compensated
- Termination Style:
- SMD (SMT) Tab
- Maximum Pressure:
- -
- Operating Temperature:
- -40°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-DFN (4x5)
MLX90817LXE-DBG-013-RE FAQ
1.How can I place an order for MLX90817LXE-DBG-013-RE through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90817LXE-DBG-013-RE 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 MLX90817LXE-DBG-013-RE reliable?
The price and inventory of MLX90817LXE-DBG-013-RE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MLX90817LXE-DBG-013-RE is usually 5 days.
3.What payment methods are accepted for MLX90817LXE-DBG-013-RE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90817LXE-DBG-013-RE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90817LXE-DBG-013-RE?
MLX90817LXE-DBG-013-RE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90817LXE-DBG-013-RE 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 MLX90817LXE-DBG-013-RE?
For technical support, including MLX90817LXE-DBG-013-RE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90817LXE-DBG-013-RE requirements.
6.How does Aetrix verify that MLX90817LXE-DBG-013-RE is sourced from the original manufacturer or authorized distributors?
All MLX90817LXE-DBG-013-RE 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 MLX90817LXE-DBG-013-RE meets industry standards.
7.What is the process for return or replacement of MLX90817LXE-DBG-013-RE?
All MLX90817LXE-DBG-013-RE units undergo pre-shipment inspection (PSI). If there is an issue with MLX90817LXE-DBG-013-RE, 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 MLX90817LXE-DBG-013-RE part is unused and in its original packaging.
Return procedure for MLX90817LXE-DBG-013-RE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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