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Melexis Technologies NV MLX90818LXE-BAE-017-RE
- Part No.:
- MLX90818LXE-BAE-017-RE
- Manufacturer:
- Melexis Technologies NV
- Category:
- Pressure Sensors, Transducers
- Package:
- 14-BFDFN Exposed Pad
- Datasheet:
-
MLX90818LXE-BAE-017-RE.pdf
- Description:
- SENSOR 58.02PSIA 16BIT 14DFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,479
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Product details
Overview
MLX90818LXE-BAE-017-RE from Melexis is an automotive-grade absolute pressure sensor delivering SENT digital output, calibrated for 0.1–4 bar absolute pressure range with ±0.5% FS accuracy over –40°C to 150°C, and integrated NTC temperature sensing with ±1°C accuracy. It integrates MEMS sensing element, 16-bit microcontroller, analog front end, voltage regulators, and SENT driver in a single DFN14 package for manifold air pressure monitoring.
For engineers reviewing the MLX90818LXE-BAE-017-RE datasheet, pinout, applications, or equivalent options, key selection criteria include SENT protocol compliance (SAE J2716), factory-programmed 0.1–4 bar transfer curve with 193–3896 LSB output, NTC interface capability, automotive diagnostic features (clamping, broken-wire detection), and rugged DFN14 packaging for under-hood deployment.
Technical Context
The MLX90818LXE-BAE-017-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 up to 237.4 V/V) and 16-bit differential ADC. Its DSP-based 16-bit microcontroller executes real-time pressure linearization, temperature-compensated gain/offset correction (up to third-order), and SENT frame generation.
Diagnostics include overvoltage/reverse-voltage protection (±18 V), supply POR thresholds (analog: 3.1–3.9 V; digital: 2.05–2.7 V), burst pressure rating of 15 bar, and SENT-based fault reporting for open-circuit, short-to-rail, and out-of-range conditions - all configurable via EEPROM.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Pressure Range | 0.1 to 4 bar absolute - maps to SENT output range 193–3896 LSB for full-scale resolution |
| Accuracy | ±0.5% FS (±20 mBar) - specified across –40°C to 150°C with temperature compensation enabled |
| NTC Temperature Accuracy | ±1°C (center), ±2°C (extended) - applies to external thermistor linearized by on-chip DSP |
| Output Protocol | SENT compliant (SAE J2716 Apr 2016) - supports Fast Channel (pressure) + Slow Channel (NTC temp) |
| Operating Temp | –40°C to 150°C - qualified per AEC-Q100 Grade 0; enables direct engine bay mounting |
| Supply Voltage | 4.5–5.5 V - includes overvoltage protection to 18 V and reverse-voltage tolerance to –18 V |
| Package | DFN14 (4 × 5 mm) - surface-mount, moisture-sensitive level 3, optimized for thermal stress resilience |
Pinout & Package
MLX90818LXE-BAE-017-RE is housed in a rugged 4 × 5 mm DFN14 package with wettable flanks, rated for automotive under-hood environments. Pinout is validated per Melexis datasheet Rev. 003 (Feb 2019), Figure 2 and Table 2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5 | Test pin | Factory test access only; not connected in normal operation |
| 3 | SENT output | Open-drain SENT signal line; requires external pull-up (10–55 kΩ to Vdd) |
| 7 | Supply input (Vdd) | Primary power input; supports 4.5–5.5 V with internal regulators and 18 V OV protection |
| 8, 12 | NTC input | Analog interface for external NTC thermistor; accepts 0–3.5 V input range |
| 10, 14 | Ground | Dual GND terminals for low-impedance return path and EMC robustness |
Key Features
| Feature | Design Value |
|---|---|
| System-in-Package Integration | MEMS sensor + analog front end + 16-bit MCU + SENT driver + regulators - eliminates external signal chain components |
| Programmable Filtering | PFLT (0–9) + SSF enable trade-off between response time (3–346 SENT frames) and pressure noise (1–41 LSB pk-pk) |
| Automotive Diagnostics | Configurable clamping, broken-wire detection, OV/UV flags, and SENT diagnostic message support per SAE J2716 |
| Factory Calibration | EEPROM-stored pressure/NTC calibration coefficients (O0–O3, G0–G3, L0–L1, N0–N3) - enables drop-in replacement without re-calibration |
| Harsh Media Compliance | Qualified for exposure to oil, fuel, and brake fluid per Melexis internal testing - suitable for direct manifold mounting |
Applications
| Manifold Absolute Pressure (MAP) Sensing | Turbocharger Boost Pressure Monitoring |
|---|---|
Use Scenario: Real-time measurement of intake manifold pressure in gasoline and diesel engines for ECU air-fuel ratio control and torque estimation. IC Role / Device Role / Timing Role: Primary absolute pressure transducer delivering SENT-coded pressure data at 100+ Hz update rate with <3 SENT frames latency (PFLT=0). Use Value: Enables precise volumetric efficiency modeling across –40°C to 150°C ambient, supporting Euro 7 and EPA Tier 4 emissions compliance. | Use Scenario: Closed-loop boost control in turbocharged powertrains, where rapid pressure transients require high bandwidth and thermal stability. IC Role / Device Role / Timing Role: High-accuracy absolute pressure sensor with NTC co-location, providing synchronized pressure + temperature data via SENT Fast/Slow Channels. Use Value: Eliminates separate temperature sensor; ±0.5% FS accuracy ensures stable wastegate actuation across 150°C exhaust proximity. |
| Engine Oil Pressure Monitoring | Brake Booster Vacuum Sensing |
Use Scenario: Direct oil gallery pressure sensing in high-performance and commercial vehicle engines to detect low-oil conditions before mechanical failure. IC Role / Device Role / Timing Role: Ruggedized absolute pressure interface with burst rating of 15 bar and harsh-media qualification for oil immersion. Use Value: Supports fail-safe shutdown logic with diagnostic-ready SENT output - no additional signal conditioning required. | Use Scenario: Monitoring vacuum level in brake booster systems to validate assist function and trigger warning lamps during low-vacuum events. IC Role / Device Role / Timing Role: Low-pressure absolute sensor (0.1 bar min) with fast response (<3 SENT frames) and built-in clamping diagnostics. Use Value: Detects vacuum leaks or pump degradation early via SENT diagnostic channel, improving ASIL-B functional safety compliance. |
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; calibrated for 0.1–3 bar range (vs. 0.1–4 bar); identical NTC accuracy and diagnostics | Optimized for naturally aspirated or low-boost engines; lower full-scale pressure reduces resolution margin above 3 bar | Select when system max pressure is ≤3 bar and cost optimization is prioritized over headroom |
| MPX5700A | Analog output (ratiometric 0.2–4.8 V), no integrated NTC or SENT; requires external ADC and microcontroller; wider 0–700 kPa range but no automotive diagnostics | Lacks SENT protocol, EEPROM programmability, and embedded temperature compensation - demands full custom signal chain | Choose only for legacy analog designs lacking SENT infrastructure or where NTC integration is unnecessary |
Compared with MLX90818LXE-BBG-016-RE, the MLX90818LXE-BAE-017-RE provides extended 4-bar full-scale range while retaining identical accuracy, diagnostics, and NTC capability; versus MPX5700A, it delivers plug-and-play SENT output, embedded processing, and automotive-grade reliability without external components.
Availability
MLX90818LXE-BAE-017-RE is available at Aetrix Electronics and suitable for automotive engine control units, turbocharger management systems, and brake vacuum monitoring requiring stable component supply, long-term lifecycle assurance, and AEC-Q100-compliant traceability.
Supply support for MLX90818LXE-BAE-017-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 markets, with design centers in Europe and manufacturing partnerships globally.
The MLX90818 product line delivers highly integrated, programmable absolute pressure sensors targeting demanding automotive applications including engine management, turbocharging, and braking systems - emphasizing EMC robustness, long-life accuracy, and diagnostic completeness.
FAQ
What is the pressure measurement range and accuracy specification for MLX90818LXE-BAE-017-RE?
The MLX90818LXE-BAE-017-RE is factory calibrated for an absolute pressure range of 0.1 to 4 bar, with total accuracy of ±0.5% full scale (±20 mBar) across –40°C to 150°C. This accuracy includes contributions from nonlinearity, hysteresis, repeatability, and temperature effects, as verified per Melexis datasheet Rev. 003 Section 11.3. The MLX90818LXE-BAE-017-RE achieves this using on-chip DSP-based temperature compensation and EEPROM-stored calibration coefficients.
Does MLX90818LXE-BAE-017-RE support both pressure and temperature sensing simultaneously?
Yes, the MLX90818LXE-BAE-017-RE delivers simultaneous pressure and temperature data via SENT protocol: pressure on the Fast Channel and NTC-derived temperature on the Slow Channel. It includes dedicated analog circuitry (pins 8 and 12) for external NTC interfacing, with on-chip 16-bit ADC and DSP performing full linearization and calibration. The MLX90818LXE-BAE-017-RE achieves ±1°C NTC temperature accuracy at center range and ±2°C over extended range, as defined in Table 7 of the datasheet.
What SENT protocol version and configuration does MLX90818LXE-BAE-017-RE implement?
The MLX90818LXE-BAE-017-RE implements SENT per SAE J2716 standard (April 2016 revision), supporting 12-bit Fast Channel (pressure) and 12-bit Slow Channel (NTC temperature) with CRC and status bits. Frame timing uses 3 µs tick time with pause pulse enabled, and default configuration delivers pressure updates every 3 SENT frames (≈300 µs at typical bus speed). The MLX90818LXE-BAE-017-RE allows EEPROM reconfiguration of channel mapping, CRC type, and message length.
Can MLX90818LXE-BAE-017-RE be reprogrammed in-system for custom calibration curves?
Yes, the MLX90818LXE-BAE-017-RE supports in-system programming via its SENT interface using Melexis' proprietary communication protocol. Customers can upload custom pressure/temperature transfer curves, filter settings (PFLT/SSF), clamping levels, and diagnostic thresholds into on-chip EEPROM. Reprogramming requires Melexis-provided tools and is supported across the full operating temperature range (–40°C to 125°C), enabling field calibration adaptation without replacing the MLX90818LXE-BAE-017-RE.
What are the key automotive diagnostic features built into MLX90818LXE-BAE-017-RE?
The MLX90818LXE-BAE-017-RE includes embedded diagnostics for overvoltage (≥6.2 V), undervoltage (≤3.1 V), open-circuit/short-to-rail on NTC pins, broken-wire detection, and pressure out-of-range (clamping). These are reported via dedicated SENT diagnostic messages and configurable flags. All diagnostics are EEPROM-configurable and operate continuously during runtime - a core requirement for ISO 26262 ASIL-B compliance. The MLX90818LXE-BAE-017-RE also supports diagnostic reset and self-test modes accessible via SENT command.
MLX90818LXE-BAE-017-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-017-RE FAQ
1.How can I place an order for MLX90818LXE-BAE-017-RE through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90818LXE-BAE-017-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-017-RE reliable?
The price and inventory of MLX90818LXE-BAE-017-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-017-RE is usually 5 days.
3.What payment methods are accepted for MLX90818LXE-BAE-017-RE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90818LXE-BAE-017-RE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90818LXE-BAE-017-RE?
MLX90818LXE-BAE-017-RE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90818LXE-BAE-017-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-017-RE?
For technical support, including MLX90818LXE-BAE-017-RE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90818LXE-BAE-017-RE requirements.
6.How does Aetrix verify that MLX90818LXE-BAE-017-RE is sourced from the original manufacturer or authorized distributors?
All MLX90818LXE-BAE-017-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-017-RE meets industry standards.
7.What is the process for return or replacement of MLX90818LXE-BAE-017-RE?
All MLX90818LXE-BAE-017-RE units undergo pre-shipment inspection (PSI). If there is an issue with MLX90818LXE-BAE-017-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-017-RE part is unused and in its original packaging.
Return procedure for MLX90818LXE-BAE-017-RE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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