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Melexis Technologies NV MLX90818LXE-BAE-015-RE
- Part No.:
- MLX90818LXE-BAE-015-RE
- Manufacturer:
- Melexis Technologies NV
- Category:
- Pressure Sensors, Transducers
- Package:
- 14-BFDFN Exposed Pad
- Datasheet:
-
MLX90818LXE-BAE-015-RE.pdf
- Description:
- SENSOR 58.02PSIA 16BIT 14DFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,872
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Product details
Overview
MLX90818LXE-BAE-015-RE from Melexis is an automotive-grade absolute pressure sensor in a 4×5 mm DFN14 package, delivering SENT digital output with ±0.5% FS accuracy over –40°C to 150°C, 0.1–4 bar full-scale range, and integrated 16-bit microcontroller-based compensation. It is used in turbo manifold air pressure sensing where high-temperature stability and EMC robustness are critical.
For engineers reviewing the MLX90818LXE-BAE-015-RE datasheet, pinout, applications, or equivalent options, this page provides verified functional context, SENT timing behavior, pressure transfer curve parameters (P1=0.1 bar, P2=4 bar, O1=193 LSB, O2=3896 LSB), diagnostic capabilities, and calibrated NTC absence per BBG-015 option code.
Technical Context
The MLX90818LXE-BAE-015-RE integrates a piezoresistive MEMS sensing element with on-die analog front end (chopping instrumentation amplifier, programmable gain stages), 16-bit differential ADC, and DSP-based 16-bit microcontroller executing real-time pressure linearization and temperature-compensated offset/gain correction. Its SENT output complies with SAE J2716 (April 2016) and delivers calibrated pressure data on Fast Channel only.
No NTC interface is enabled in BBG-015 configuration: Pin 8 and Pin 12 are unused, and internal temperature reporting is disabled in default firmware. The device implements overvoltage (±18 V), reverse voltage, broken-wire, and clamping diagnostics-programmable via EEPROM-and supports factory or field calibration of pressure transfer curves.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Pressure Range | 0.1 to 4 bar absolute - matches turbocharged intake manifold pressure monitoring with 3.9 bar usable span. |
| Output Accuracy | ±0.5% FS (±19 LSB) - ensures <±20 mBar error at full scale under extended life conditions at 150°C. |
| SENT Output | SAE J2716-compliant Fast Channel only - delivers 12-bit pressure data per frame; no Slow Channel or NTC data transmitted. |
| Operating Temp | –40°C to +150°C - qualified for under-hood placement without external thermal shielding. |
| Supply Voltage | 4.5–5.5 V - compatible with standard automotive 5 V regulators; includes 3.5 V analog POR and 2.3 V digital POR. |
| Response Time | 3 SENT frames (≈9 µs @ 3 µs tick) - enables real-time closed-loop boost control with minimal latency. |
| Package | DFN14 (4×5 mm, 0.5 mm pitch) - surface-mount ruggedized housing with exposed thermal pad for PCB heat dissipation. |
Pinout & Package
MLX90818LXE-BAE-015-RE uses a 14-pin DFN package (4×5 mm, 0.5 mm pitch) with exposed thermal pad. Pin 1 is top-left corner (marked "V"), bottom-view orientation per Figure 2. Pins 2, 4, 6, 9, 11, 13 are NC; pins 5 and 1 are test-only; pins 7 (VDD), 10/14 (GND) form primary power loop; pin 3 is SENT output.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Test pin | Factory programming access; not connected in end-user operation. |
| 3 | SENT output | Open-drain SENT signal line; requires external 10–55 kΩ pull-up to VDD at receiver. |
| 7 | Supply input | Main 4.5–5.5 V supply; decoupling capacitor (100 nF) required adjacent to pin. |
| 8 | NTC input | Not used in BBG-015 variant; left floating or tied to GND per layout guidelines. |
| 10, 14 | Ground | Dual GND terminals reduce ground bounce; both must be soldered to thermal pad and PCB ground plane. |
| 12 | NTC input | Redundant NTC terminal; inactive and unconnected in BBG-015 configuration. |
Key Features
| Feature | Design Value |
|---|---|
| Digital SENT output | Eliminates analog signal degradation in noisy engine bays; supports deterministic timing and CRC error detection per SAE J2716. |
| On-chip 16-bit MCU | Executes full pressure linearization, gain/offset temperature compensation (up to 3rd order), and programmable filter (PFLT/SSF) without host processor load. |
| Automotive diagnostics | Integrated clamping, overpressure, under-pressure, supply fault, and broken-wire detection - configurable via EEPROM for OEM-specific fault thresholds. |
| Rugged DFN14 package | Withstands burst pressure up to 15 bar and meets AEC-Q100 Grade 0 requirements for harsh-media exposure and thermal cycling. |
| Factory-calibrated transfer curve | BBG-015 preset: P1=0.1 bar → O1=193 LSB, P2=4 bar → O2=3896 LSB, LCL=1 LSB, HCL=4088 LSB - ready for drop-in use in manifold pressure systems. |
Applications
| Manifold Absolute Pressure (MAP) Sensing | Turbocharger Boost Control |
|---|---|
Use Scenario: Real-time measurement of intake manifold pressure in gasoline direct injection engines to calculate air mass for fuel metering and knock control. IC Role / Device Role / Timing Role: Primary absolute pressure transducer feeding SENT data to ECU every 3–10 ms; operates continuously at 150°C ambient. Use Value: ±0.5% FS accuracy ensures stoichiometric air-fuel ratio control across full temperature range, reducing emissions and improving fuel economy. | Use Scenario: Closed-loop feedback for variable geometry turbocharger (VGT) actuation to maintain target boost pressure during transient acceleration. IC Role / Device Role / Timing Role: High-speed pressure monitor with 9 µs response time; SENT frames synchronized to ECU control cycle for minimal latency. Use Value: Enables precise boost regulation within ±15 mBar tolerance, preventing overboost damage and optimizing torque delivery. |
| Engine Start-Stop System Monitoring | On-Board Diagnostics (OBD-II) |
Use Scenario: Validating vacuum integrity during engine cranking and verifying MAP stability during idle-stop transitions. IC Role / Device Role / Timing Role: Diagnostic pressure reference during key-on events; leverages built-in POR hysteresis (100–500 mV) for reliable cold-start initialization. Use Value: Eliminates need for external supervisory circuitry; reduces BOM count while ensuring fail-safe startup behavior. | Use Scenario: Providing calibrated pressure data for OBD-II P0106 (MAP sensor performance) and P0107 (low input) fault codes. IC Role / Device Role / Timing Role: Integrated diagnostics engine flags over/under-pressure, open-circuit, and supply faults - reported via SENT diagnostic frames. Use Value: Reduces ECU software overhead for sensor health monitoring; accelerates regulatory compliance testing for Tier 3 emissions standards. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar absolute pressure sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MLX90818LXE-BBG-016-RE | Same DFN14 package and SENT interface, but includes calibrated NTC interface (–55°C to 200°C, ±1°C typical accuracy) and 0.1–3 bar range. | Required when simultaneous intake air temperature and pressure feedback is needed for density-based air mass calculation. | Select BBG-016 if NTC integration eliminates need for separate temperature sensor and reduces system-level calibration complexity. |
| MPX5700AC6U | Analog output (0.2–4.7 V ratiometric), no SENT, no on-chip processing; requires external ADC and compensation firmware; 7-pin SOIC package. | Suitable for legacy ECU designs lacking SENT receivers or low-cost non-automotive applications where EMC immunity is less critical. | Choose MPX5700AC6U only when SENT compatibility is unnecessary and board space allows larger SOIC footprint. |
Compared with MLX90818LXE-BBG-016-RE, the MLX90818LXE-BAE-015-RE removes NTC functionality to simplify calibration and improve pressure-only accuracy stability; versus MPX5700AC6U, it shifts signal conditioning and diagnostics from host MCU to on-chip resources, reducing system latency and software validation burden.
Availability
MLX90818LXE-BAE-015-RE is available at Aetrix Electronics and suitable for turbocharged engine control units, manifold pressure monitoring systems, and automotive OBD-II diagnostic modules requiring stable component supply across extended temperature and lifetime conditions.
Supply support for MLX90818LXE-BAE-015-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 magnetic, pressure, and infrared sensors for automotive and industrial applications, with ISO/TS 16949 certification and AEC-Q100 qualification expertise.
The MLX90818 product line delivers high-accuracy, system-in-package absolute pressure sensing for harsh-environment automotive powertrain applications, integrating MEMS, signal conditioning, and SENT communication in a single die.
FAQ
What pressure range does the MLX90818LXE-BAE-015-RE support?
The MLX90818LXE-BAE-015-RE supports an absolute pressure range of 0.1 bar to 4 bar, corresponding to a SENT output span of 193–3896 LSB. This range is optimized for turbocharged intake manifold pressure monitoring and validated across –40°C to 150°C with ±0.5% FS accuracy. The device does not support vacuum or sub-atmospheric measurements.
Does the MLX90818LXE-BAE-015-RE include NTC temperature sensing?
No, the MLX90818LXE-BAE-015-RE is configured per BBG-015 option code and does not enable the NTC interface. Pins 8 and 12 are inactive and must remain unconnected or grounded per layout guidelines. Temperature reporting is limited to internal die temperature, which is not output on SENT in this variant.
What SENT protocol version and frame structure does the MLX90818LXE-BAE-015-RE implement?
The MLX90818LXE-BAE-015-RE implements SAE J2716 REV APR2016 SENT protocol with 12-bit Fast Channel only. Each frame contains pressure data in LSB format (193–3896), CRC checksum, and status bits. No Slow Channel or NTC data is transmitted. Frame timing uses 3 µs tick time with pause pulse enabled.
How is the MLX90818LXE-BAE-015-RE calibrated, and can it be reprogrammed?
The MLX90818LXE-BAE-015-RE is factory-calibrated with EEPROM-stored coefficients for pressure transfer curve (P1=0.1 bar, P2=4 bar), clamping levels (LCL=1 LSB, HCL=4088 LSB), and temperature compensation. It supports field reprogramming via supply-voltage-based communication mode (Vdd_com = 6.2–7.8 V) for custom calibration curves using Melexis-provided tools.
What are the key EMC and protection features of the MLX90818LXE-BAE-015-RE?
The MLX90818LXE-BAE-015-RE includes ±18 V overvoltage and reverse-voltage protection on supply and output lines, built-in slew-rate control on SENT output, and optimized CMOS layout for best-in-class automotive EMC performance. It also features broken-wire detection, supply fault monitoring, and programmable clamping diagnostics-all implemented in hardware without host intervention.
MLX90818LXE-BAE-015-RE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Melexis Technologies NV
- Series:
- Triaxis®
- Package/Case:
- 14-BFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Applications:
- Board Mount
- Pressure Type:
- Absolute
- Operating Pressure:
- 1.45PSI ~ 58.02PSI (10kPa ~ 400kPa)
- Output Type:
- SENT
- Output:
- 16 b
- Accuracy:
- ±0.5%
- 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)
MLX90818LXE-BAE-015-RE FAQ
1.How can I place an order for MLX90818LXE-BAE-015-RE through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90818LXE-BAE-015-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 MLX90818LXE-BAE-015-RE reliable?
The price and inventory of MLX90818LXE-BAE-015-RE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MLX90818LXE-BAE-015-RE is usually 5 days.
3.What payment methods are accepted for MLX90818LXE-BAE-015-RE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90818LXE-BAE-015-RE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90818LXE-BAE-015-RE?
MLX90818LXE-BAE-015-RE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90818LXE-BAE-015-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 MLX90818LXE-BAE-015-RE?
For technical support, including MLX90818LXE-BAE-015-RE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90818LXE-BAE-015-RE requirements.
6.How does Aetrix verify that MLX90818LXE-BAE-015-RE is sourced from the original manufacturer or authorized distributors?
All MLX90818LXE-BAE-015-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 MLX90818LXE-BAE-015-RE meets industry standards.
7.What is the process for return or replacement of MLX90818LXE-BAE-015-RE?
All MLX90818LXE-BAE-015-RE units undergo pre-shipment inspection (PSI). If there is an issue with MLX90818LXE-BAE-015-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 MLX90818LXE-BAE-015-RE part is unused and in its original packaging.
Return procedure for MLX90818LXE-BAE-015-RE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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