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Melexis Technologies NV MLX90817LXE-DBG-001-RE
- Part No.:
- MLX90817LXE-DBG-001-RE
- Manufacturer:
- Melexis Technologies NV
- Category:
- Pressure Sensors, Transducers
- Package:
- 14-BFDFN Exposed Pad
- Datasheet:
-
MLX90817LXE-DBG-001-RE.pdf
- Description:
- SENSOR 14DFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,512
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Product details
Overview
MLX90817LXE-DBG-001-RE from Melexis is an automotive-grade absolute pressure sensor IC with ratiometric analog output, factory-calibrated for 0.5–4 bar absolute pressure range and 0.5–4.5 V output scaling, integrated MEMS sensing element, 16-bit microcontroller, temperature compensation, and diagnostics-designed for manifold air pressure monitoring in ICE powertrains.
For engineers reviewing the MLX90817LXE-DBG-001-RE datasheet, pinout, applications, or equivalent options, this page delivers verified specifications, automotive diagnostic behavior, pressure transfer curve details, DFN14 package layout, and real-world use context for engine control unit (ECU) integration and functional safety validation.
Technical Context
The MLX90817LXE-DBG-001-RE implements a piezoresistive Wheatstone bridge sensing element bonded to a vacuum cavity, with on-chip signal conditioning including a 16-bit differential ADC, DSP-based temperature compensation (up to third-order), and programmable pressure linearization stored in EEPROM. Its analog front end features chopper-stabilized instrumentation amplification with configurable gain (4.5–10.6 V/V) and coarse offset DAC.
Diagnostics include broken-track detection on supply/ground lines, clamping level programming (0.3 V / 4.7 V), over/under-pressure flags, and digital POR (2.05–2.7 V) plus analog POR (3.1–3.9 V), all operating across –40°C to +150°C with EMC-hardened architecture compliant with automotive CISPR 25 Class 5.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Pressure Range | 0.5–4 bar absolute; maps linearly to 0.5–4.5 V analog output at 5 V supply |
| Output Accuracy | ±35 mbar total error over full temperature range; ±1 mV output error over full-scale (0.5–4.5 V) |
| Operating Temp | –40°C to +150°C; qualified per AEC-Q100 Grade 0 with <0.1% drift over life under thermal cycling |
| Supply Voltage | 4.5–5.5 V nominal; supports 18 V overvoltage protection and –14 V reverse voltage tolerance |
| Response Time | 1 ms to 90% of final value with PFLT=0 filter setting; programmable up to 203.8 ms |
| Bridge Sensitivity | 9 mV/V/bar for DBG-xxx variants; enables high-resolution pressure resolution down to ~3.5 mbar LSB |
| Diagnostic Coverage | Includes supply rail fault detection, open-circuit sensing element diagnostics, and EEPROM-configurable clamping levels |
Pinout & Package
MLX90817LXE-DBG-001-RE is housed in a rugged 4×5 mm DFN14 (14-pin dual flat no-lead) package with wettable flanks, optimized for automotive under-hood environments and automated optical inspection (AOI).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 5 | Test pin | Factory test access points; not connected in normal operation; require no external termination |
| 7 | Vsupply | Main supply input (4.5–5.5 V); includes internal regulator, overvoltage, and reverse-voltage protection |
| 8 | Analog Output | Ratiometric voltage output (0.5–4.5 V); drives 4.7 kΩ load; supports clamping and broken-wire diagnostics |
| 10, 14 | GND | Ground reference for analog and digital domains; dual pins reduce impedance and improve noise immunity |
| 2, 4, 6, 9, 11, 12, 13 | Not Connected | No internal connection; must remain unconnected on PCB; no pull-up/down required |
Key Features
| Feature | Design Value |
|---|---|
| System-in-Package Integration | MEMS sensor, analog front end, 16-bit microcontroller, EEPROM, voltage regulators, and diagnostics co-integrated in single DFN die |
| Automotive Diagnostic Suite | Real-time broken-track detection on Vsupply/GND, programmable clamping (0.3 V / 4.7 V), and fault-band signaling without external components |
| Factory-Calibrated Transfer Curve | Pre-programmed 0.5–4 bar → 0.5–4.5 V mapping with ±35 mbar accuracy over –40°C to +150°C |
| Programmable Filtering | Two-stage digital filtering: Small Signal Filter (SSF) for noise suppression and PFLT (0–9) for adjustable response time (0.93–203.8 ms) |
| Harsh Environment Robustness | 15 bar burst pressure rating, 18 V overvoltage tolerance, and AEC-Q100 Grade 0 qualification for under-hood deployment |
Applications
| Manifold Absolute Pressure (MAP) Sensing | Turbocharger Boost Pressure Monitoring |
|---|---|
Use Scenario: Real-time measurement of intake manifold pressure in gasoline direct injection (GDI) engines for air-fuel ratio calculation and torque estimation. IC Role / Device Role / Timing Role: Primary absolute pressure transducer delivering ratiometric analog output synchronized to ECU sampling clock (200 µs update interval). Use Value: Enables closed-loop combustion control with ±35 mbar accuracy across full engine operating range, reducing emissions and improving fuel economy. | Use Scenario: Monitoring boost pressure upstream of the throttle body in turbocharged diesel engines to prevent over-boost and protect turbine integrity. IC Role / Device Role / Timing Role: High-speed analog pressure interface with 1 ms response time and diagnostic flagging for rapid overpressure events. Use Value: Supports fail-safe limp-home mode activation within 5 ms of detected overpressure, meeting ISO 26262 ASIL-B requirements. |
| LPG/CNG Fuel Injector Pressure Feedback | Engine Crankcase Pressure Monitoring |
Use Scenario: Closed-loop pressure regulation in bi-fuel vehicle LPG injection systems where precise 0.5–4 bar control ensures stoichiometric combustion. IC Role / Device Role / Timing Role: Ratiometric analog sensor interfaced directly to fuel controller ADC; calibrated for hydrocarbon media compatibility. Use Value: Eliminates need for external signal conditioning or calibration lookup tables, reducing BOM cost by $0.32 per unit. | Use Scenario: Detection of abnormal crankcase pressure rise indicating piston ring wear or head gasket failure in heavy-duty diesel engines. IC Role / Device Role / Timing Role: Low-drift absolute pressure monitor with extended temperature stability (–40°C to +150°C) mounted on engine block. Use Value: Provides early warning of mechanical degradation with <±0.5 kPa long-term drift, enabling predictive maintenance scheduling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar absolute pressure sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPX5700AP | 700 kPa range (0–7 bar), 0–5 V output, no integrated microcontroller or diagnostics; requires external compensation | Used in non-automotive industrial pressure monitoring; lacks AEC-Q100 qualification and fault reporting | Choose MPX5700AP only for cost-sensitive, non-safety-critical applications where calibration and diagnostics are handled externally |
| SSM2200-001 | 0.5–4 bar range, 0.5–4.5 V output, but uses analog ASIC-only architecture (no MCU or EEPROM); fixed temperature compensation | Deployed in legacy automotive platforms requiring pin-compatible replacement without firmware updates | SSM2200-001 suits drop-in upgrades where existing ECU software cannot support programmable diagnostics or filter settings |
Compared with MPX5700AP and SSM2200-001, MLX90817LXE-DBG-001-RE delivers superior system-level integration-replacing discrete signal chain components, enabling field-reprogrammable calibration, and providing ASIL-B-ready diagnostics without additional ICs or layout changes.
Availability
MLX90817LXE-DBG-001-RE is available at Aetrix Electronics and suitable for engine control units, turbocharger control modules, and alternative fuel injection systems requiring stable component supply, long-lifecycle availability, and automotive-grade traceability.
Supply support for MLX90817LXE-DBG-001-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 markets, with core expertise in magnetic, pressure, and infrared sensing technologies.
The MLX90817 product line delivers fully integrated, programmable absolute pressure sensors targeting high-reliability engine management and emissions control applications in ICE and hybrid powertrains.
FAQ
What is the pressure range and output scaling of the MLX90817LXE-DBG-001-RE?
The MLX90817LXE-DBG-001-RE is factory calibrated for an absolute pressure range of 0.5–4 bar, producing a ratiometric analog output from 0.5 V to 4.5 V at nominal 5 V supply. The transfer function is stored in on-chip EEPROM and remains stable across –40°C to +150°C. This scaling enables direct interface with standard 12-bit automotive ECUs without external amplification or level-shifting circuitry. The MLX90817LXE-DBG-001-RE maintains ±35 mbar total accuracy over its full operating range.
Does the MLX90817LXE-DBG-001-RE support diagnostic functions, and how are they implemented?
Yes, the MLX90817LXE-DBG-001-RE integrates multiple automotive diagnostics including broken-track detection on Vsupply and GND lines, over/under-pressure flags, and programmable output clamping (0.3 V low / 4.7 V high). These functions operate autonomously via on-chip logic and do not require host processor intervention. Diagnostic status is signaled through analog output rail clamping or fault-band voltage levels, enabling immediate ECU response. All diagnostics are AEC-Q100 validated and configurable via EEPROM. The MLX90817LXE-DBG-001-RE supports ISO 26262 ASIL-B compliance when used per Melexis application notes.
What package type and pin configuration does the MLX90817LXE-DBG-001-RE use?
The MLX90817LXE-DBG-001-RE uses a 4×5 mm DFN14 (dual flat no-lead) package with wettable flanks, designated as "XE" in Melexis ordering nomenclature. It has 14 terminals: pins 1/3/5 are test-only and unconnected in application; pin 7 is Vsupply; pin 8 is analog output; pins 10 and 14 are ground; and pins 2/4/6/9/11/12/13 are NC. The package supports automated optical inspection and meets IPC-J-STD-020 moisture sensitivity level 3. The MLX90817LXE-DBG-001-RE requires no external decoupling beyond the recommended 47–100 nF capacitor on Vsupply.
Can the MLX90817LXE-DBG-001-RE be reprogrammed or recalibrated in-system?
Yes, the MLX90817LXE-DBG-001-RE supports full in-system reprogramming via its dedicated communication mode, entered by applying 6.2–7.8 V to Vsupply. Users can update EEPROM parameters including pressure transfer curve coefficients (O0–O3, G0–G3), filter settings (PFLT, SSF), clamping levels, and diagnostic thresholds using Melexis' official programming tools. Calibration data is retained across power cycles. Reprogramming does not affect device qualification or AEC-Q100 status. The MLX90817LXE-DBG-001-RE allows field adaptation to new engine variants or aging compensation without hardware change.
What is the typical response time and noise performance of the MLX90817LXE-DBG-001-RE?
The MLX90817LXE-DBG-001-RE achieves a 1 ms response time (90% settling) with default PFLT=0 and SSF disabled, and output noise of 2 mVrms (BW = 50 kHz). Response time is programmable from 0.93 ms to 203.8 ms via PFLT register (0–9), while SSF reduces small-signal noise without affecting step response. The analog output drives loads ≥4.7 kΩ and tolerates capacitive loads up to 470 nF. These characteristics make the MLX90817LXE-DBG-001-RE suitable for fast transient pressure capture in turbocharged engines. The MLX90817LXE-DBG-001-RE maintains specified performance across its full –40°C to +150°C range.
MLX90817LXE-DBG-001-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-001-RE FAQ
1.How can I place an order for MLX90817LXE-DBG-001-RE through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90817LXE-DBG-001-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-001-RE reliable?
The price and inventory of MLX90817LXE-DBG-001-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-001-RE is usually 5 days.
3.What payment methods are accepted for MLX90817LXE-DBG-001-RE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90817LXE-DBG-001-RE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90817LXE-DBG-001-RE?
MLX90817LXE-DBG-001-RE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90817LXE-DBG-001-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-001-RE?
For technical support, including MLX90817LXE-DBG-001-RE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90817LXE-DBG-001-RE requirements.
6.How does Aetrix verify that MLX90817LXE-DBG-001-RE is sourced from the original manufacturer or authorized distributors?
All MLX90817LXE-DBG-001-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-001-RE meets industry standards.
7.What is the process for return or replacement of MLX90817LXE-DBG-001-RE?
All MLX90817LXE-DBG-001-RE units undergo pre-shipment inspection (PSI). If there is an issue with MLX90817LXE-DBG-001-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-001-RE part is unused and in its original packaging.
Return procedure for MLX90817LXE-DBG-001-RE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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