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Home > Products > Sensors, Transducers > Pressure Sensors, Transducers

Melexis Technologies NV MLX90818LXE-BAE-015-SP

Name: MLX90818LXE-BAE-015-SP
Brand: Melexis Technologies NV
SKU: MLX90818LXE-BAE-015-SP
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MLX90818LXE-BAE-015-SP

Manufacturer:: Melexis Technologies NV

Category:: Pressure Sensors, Transducers

Package:: 14-BFDFN Exposed Pad

Datasheet:: MLX90818LXE-BAE-015-SP.pdf

Description:: SENSOR 58.02PSIA 16BIT 14DFN

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Product details

Overview

MLX90818LXE-BAE-015-SP from Melexis is a factory-calibrated, automotive-grade absolute pressure sensor 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 signal conditioning. It serves as the primary pressure transducer in turbocharged engine manifold monitoring systems requiring high long-term stability under harsh thermal and mechanical stress.

For engineers reviewing the MLX90818LXE-BAE-015-SP datasheet, pinout, applications, or equivalent options, this page delivers verified functional architecture, SENT timing behavior, pressure-to-LSB transfer curve (193–3896 LSB), NTC interface capability (not enabled in BBG-015 variant), and diagnostic configuration options for production-ready automotive ECU integration.

Technical Context

The MLX90818LXE-BAE-015-SP integrates a piezoresistive MEMS sensing element, analog front-end with programmable gain (Gst1 = 4.49–10.6 V/V), 16-bit differential ADC, and DSP-based 16-bit microcontroller executing real-time pressure linearization, temperature compensation, and SENT protocol encoding. Its architecture supports SENT Fast Channel transmission of calibrated pressure data only - no NTC temperature channel - per BBG-015 configuration.

It implements dual-stage filtering (PFLT programmable first-order LPF and SSF small-signal filter), on-chip diagnostics including overvoltage/reverse-voltage protection, broken-wire detection, and clamping (1–4088 LSB), all operating within automotive EMC-compliant supply conditions (4.5–5.5 V, 8.3–9.5 mA typical current).

Key Specifications

Parameter	Value and Actual Design Meaning
Pressure Range	0.1 to 4 bar absolute - defines usable manifold/turbo boost pressure span with 3.9 bar headroom before burst (15 bar)
Output Accuracy	±0.5% FS (±20 mBar) - guaranteed initial accuracy at room temperature, extended to ±0.75% FS over life at 150°C
SENT Output	193–3896 LSB (Fast Channel only) - linearized, factory-calibrated pressure code compliant with SAE J2716 April 2016
Operating Temperature	–40°C to +150°C - qualified for under-hood placement without external thermal shielding
Supply Voltage	4.5 V to 5.5 V - operates across automotive battery variation; includes analog/digital POR thresholds (3.1–3.9 V / 2.05–2.7 V)
Response Time	3 SENT frames (≈9 µs @ 3 µs tick) - minimum latency with PFLT = 0, enabling real-time turbo pressure feedback control
Package	DFN14 (4 × 5 mm, 0.5 mm pitch) - surface-mount rugged package with exposed thermal pad for PCB heat dissipation

Pinout & Package

MLX90818LXE-BAE-015-SP uses a 14-pin DFN package (4 × 5 mm, 0.5 mm pitch) with wettable flank leads and exposed thermal pad. Pin 1 is marked by laser etching; bottom-view orientation places Pin 1 at bottom-left corner.

Pin/Terminal	Circuit Role	Design Meaning
1	Test pin	Factory programming and test access; not connected in end application
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 power rail; decoupled with 100 nF capacitor near pin
10, 14	Ground	Dual GND terminals for analog/digital return path separation and EMC robustness
8, 12	NTC input	Analog inputs for external thermistor; unused in BBG-015 variant (no NTC enabled)

Key Features

Feature	Design Value
System-in-Package Integration	MEMS sensor + analog AFE + 16-bit MCU + SENT driver + voltage regulators - eliminates external signal chain components
Automotive Diagnostic Coverage	Programmable fault detection for overvoltage, reverse voltage, open-circuit, short-to-battery/ground - enables ASIL-B–compatible system reporting
Factory Calibration	EEPROM-stored pressure transfer curve (P1=0.1 bar, P2=4 bar, O1=193 LSB, O2=3896 LSB) - removes need for end-of-line calibration
Harsh Media Compliance	Qualified for direct exposure to engine oil, fuel vapor, and exhaust gas condensates - validated per OEM fluid resistance standards
EMC Robustness	Optimized CMOS layout and internal protection (±18 V supply tolerance) - meets ISO 11452-2/4/8 and ISO 7637-2 requirements

Applications

Turbo Manifold Pressure Sensing	Engine Intake Manifold Monitoring
Use Scenario: Real-time measurement of boosted air pressure upstream of the throttle body in gasoline direct injection engines. IC Role / Device Role / Timing Role: Primary absolute pressure transducer feeding closed-loop boost control algorithms with SENT frame-aligned timing. Use Value: Enables precise wastegate actuation and torque limiting using factory-trimmed 0.1–4 bar range and ±0.5% FS accuracy at 150°C.	Use Scenario: Detection of intake vacuum fluctuations during transient engine operation (e.g., tip-in/tip-out, gear shifts). IC Role / Device Role / Timing Role: High-speed pressure sampling node synchronized to ECU main loop via SENT frame rate (typically 125 Hz). Use Value: Delivers sub-millisecond response (3 SENT frames) and low noise (3 LSB pk-pk) for accurate load estimation and misfire detection.
On-Board Diagnostics (OBD-II) Pressure Reporting	Aftertreatment System Pressure Monitoring
Use Scenario: Providing calibrated pressure data to meet SAE J1978 OBD-II PID requirements for forced-induction vehicle certification. IC Role / Device Role / Timing Role: Certified diagnostic sensor generating standardized SENT messages with embedded fault flags (clamping, open-circuit, OV/UV). Use Value: Eliminates need for external diagnostic logic; supports mandatory MIL illumination and freeze-frame recording per ISO 15031-5.	Use Scenario: Monitoring differential pressure across diesel particulate filters (DPF) or selective catalytic reduction (SCR) catalysts. IC Role / Device Role / Timing Role: Ruggedized pressure node mounted in high-vibration exhaust stream with sealed media interface. Use Value: Withstands 150°C continuous operation and burst pressure up to 15 bar - ensures reliability in aftertreatment thermal cycling.

Turbo Manifold Pressure Sensing

Engine Intake Manifold Monitoring

Use Scenario: Real-time measurement of boosted air pressure upstream of the throttle body in gasoline direct injection engines.

IC Role / Device Role / Timing Role: Primary absolute pressure transducer feeding closed-loop boost control algorithms with SENT frame-aligned timing.

Use Value: Enables precise wastegate actuation and torque limiting using factory-trimmed 0.1–4 bar range and ±0.5% FS accuracy at 150°C.

Use Scenario: Detection of intake vacuum fluctuations during transient engine operation (e.g., tip-in/tip-out, gear shifts).

IC Role / Device Role / Timing Role: High-speed pressure sampling node synchronized to ECU main loop via SENT frame rate (typically 125 Hz).

Use Value: Delivers sub-millisecond response (3 SENT frames) and low noise (3 LSB pk-pk) for accurate load estimation and misfire detection.

On-Board Diagnostics (OBD-II) Pressure Reporting

Aftertreatment System Pressure Monitoring

Use Scenario: Providing calibrated pressure data to meet SAE J1978 OBD-II PID requirements for forced-induction vehicle certification.

IC Role / Device Role / Timing Role: Certified diagnostic sensor generating standardized SENT messages with embedded fault flags (clamping, open-circuit, OV/UV).

Use Value: Eliminates need for external diagnostic logic; supports mandatory MIL illumination and freeze-frame recording per ISO 15031-5.

Use Scenario: Monitoring differential pressure across diesel particulate filters (DPF) or selective catalytic reduction (SCR) catalysts.

IC Role / Device Role / Timing Role: Ruggedized pressure node mounted in high-vibration exhaust stream with sealed media interface.

Use Value: Withstands 150°C continuous operation and burst pressure up to 15 bar - ensures reliability in aftertreatment thermal cycling.

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 configured for 0.1–3 bar range and includes NTC temperature channel	Required when combined pressure + intake air temperature measurement is needed for mass airflow calculation	Select BBG-016 if NTC functionality is required; BBG-015 omits NTC circuitry and firmware overhead
MPX5700AC6U	Analog output (0–5 V), no integrated microcontroller or SENT driver; requires external ADC and signal conditioning	Suitable for legacy analog ECU designs lacking SENT receivers; lacks built-in diagnostics and temperature compensation	Choose MPX5700AC6U only for cost-sensitive non-automotive applications where digital bus integration is not required

Compared with MLX90818LXE-BBG-016-RE, the MLX90818LXE-BAE-015-SP provides identical accuracy and packaging but excludes NTC support - reducing firmware complexity and enabling faster SENT frame generation. Versus MPX5700AC6U, it delivers plug-and-play SENT compliance, on-chip diagnostics, and automotive qualification - eliminating external component count and validation effort.

Availability

MLX90818LXE-BAE-015-SP is available at Aetrix Electronics and suitable for turbocharged engine control units, OBD-II diagnostic modules, and aftertreatment system pressure monitoring requiring stable component supply, long-lifecycle availability, and AEC-Q100 Grade 0 qualification.

Supply support for MLX90818LXE-BAE-015-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 manufacturing partnerships in Asia.

The MLX90818 product line was developed specifically for high-reliability automotive pressure sensing in extreme under-hood environments, emphasizing long-term drift stability, SENT protocol compliance, and integrated diagnostics for ASIL-B system architectures.

FAQ

What is the pressure range and output resolution of the MLX90818LXE-BAE-015-SP?

The MLX90818LXE-BAE-015-SP has a factory-programmed absolute pressure range of 0.1 to 4 bar, mapped linearly to a SENT Fast Channel output of 193 to 3896 LSB (3704-step resolution). This corresponds to ~1.08 mBar/LSB granularity, confirmed in Table 5 of the datasheet for BBG-015 configuration. The MLX90818LXE-BAE-015-SP does not support NTC temperature output - that feature is exclusive to BBG-016 and BBG-017 variants.

Does the MLX90818LXE-BAE-015-SP support SENT protocol version compatibility?

Yes, the MLX90818LXE-BAE-015-SP implements SENT per SAE J2716 standard dated April 2016, supporting 3-nibble Fast Channel format with CRC, pause pulse, and configurable frame rate. It does not support SENT revisions beyond 2016, nor does it implement Slow Channel or enhanced message types - its SENT implementation is fixed to single-channel pressure-only transmission as defined for BBG-015.

How is the MLX90818LXE-BAE-015-SP calibrated, and can it be reprogrammed in-system?

The MLX90818LXE-BAE-015-SP undergoes full factory calibration at final test, with pressure transfer coefficients (P1, P2, O1, O2), clamping levels (LCL/HCL), and temperature compensation parameters stored in on-chip EEPROM. Reprogramming is possible via the SENT interface using Melexis' proprietary communication protocol and requires dedicated programming hardware - not supported through standard CAN or UART interfaces. The MLX90818LXE-BAE-015-SP retains calibration data across power cycles and temperature extremes.

What diagnostic functions are active by default on the MLX90818LXE-BAE-015-SP?

By default, the MLX90818LXE-BAE-015-SP enables overvoltage detection (trip at >6.2 V), reverse-voltage protection (–18 V tolerance), open-circuit detection on SENT line, and pressure clamping (1–4088 LSB). Diagnostic flags are embedded in SENT frame status bits and accessible via the diagnostic logic block. No NTC-related diagnostics are active in BBG-015 since the NTC interface is disabled - this differs from BBG-016/BBG-017 configurations.

Is the MLX90818LXE-BAE-015-SP pin-compatible with other MLX90818 variants?

Yes, all MLX90818 variants - including MLX90818LXE-BBG-015, BBG-016, and BBG-017 - share identical DFN14 (4 × 5 mm) mechanical footprint and pinout. The MLX90818LXE-BAE-015-SP uses the same Pin 1 (test), Pin 3 (SENT), Pin 7 (Vdd), Pins 10/14 (GND), and Pins 8/12 (NTC inputs) layout. Functional differences arise solely from EEPROM configuration, not hardware revision or pin assignment.

MLX90818LXE-BAE-015-SP Specifications

Product attributes: Attribute value

Manufacturer:: Melexis Technologies NV

Series:: Triaxis®

Package/Case:: 14-BFDFN Exposed Pad

Packaging:: Bulk

Product Status:: Obsolete

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-SP FAQ

1.How can I place an order for MLX90818LXE-BAE-015-SP through Aetrix?

Please submit a Request for Quotation (RFQ) for MLX90818LXE-BAE-015-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 MLX90818LXE-BAE-015-SP reliable?

The price and inventory of MLX90818LXE-BAE-015-SP 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-SP is usually 5 days.

3.What payment methods are accepted for MLX90818LXE-BAE-015-SP?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90818LXE-BAE-015-SP transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MLX90818LXE-BAE-015-SP?

MLX90818LXE-BAE-015-SP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MLX90818LXE-BAE-015-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 MLX90818LXE-BAE-015-SP?

For technical support, including MLX90818LXE-BAE-015-SP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90818LXE-BAE-015-SP requirements.

6.How does Aetrix verify that MLX90818LXE-BAE-015-SP is sourced from the original manufacturer or authorized distributors?

All MLX90818LXE-BAE-015-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 MLX90818LXE-BAE-015-SP meets industry standards.

7.What is the process for return or replacement of MLX90818LXE-BAE-015-SP?

All MLX90818LXE-BAE-015-SP units undergo pre-shipment inspection (PSI). If there is an issue with MLX90818LXE-BAE-015-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 MLX90818LXE-BAE-015-SP part is unused and in its original packaging.

Return procedure for MLX90818LXE-BAE-015-SP:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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