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

Melexis Technologies NV MLX90817LXE-DBG-001-SP

Name: MLX90817LXE-DBG-001-SP
Brand: Melexis Technologies NV
SKU: MLX90817LXE-DBG-001-SP
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MLX90817LXE-DBG-001-SP

Manufacturer:: Melexis Technologies NV

Category:: Pressure Sensors, Transducers

Package:: 14-BFDFN Exposed Pad

Datasheet:: MLX90817LXE-DBG-001-SP.pdf

Description:: SENSOR 14DFN

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Product details

Overview

MLX90817LXE-DBG-001-SP from Melexis is an automotive-grade absolute pressure sensor IC with ratiometric analog output, factory-calibrated for 0.5–4 bar range and 0.5–4.5 V output, integrated MEMS sensing element, 16-bit microcontroller, analog front/back end, and voltage regulators in a rugged DFN14 package. It delivers ±35 mbar total pressure accuracy over –40°C to 150°C and supports manifold air pressure sensing in turbocharged ICE systems.

For engineers reviewing the MLX90817LXE-DBG-001-SP datasheet, pinout, applications, or equivalent options, key selection considerations include its programmable clamping (0.3 V / 4.7 V), 1 ms response time with default filtering, built-in diagnostics (broken track, over/under-voltage), and harsh-environment suitability per AEC-Q100.

Technical Context

The MLX90817LXE-DBG-001-SP implements a piezoresistive Wheatstone bridge MEMS sensing element with on-chip temperature compensation, 16-bit ADC, and DSP-based linearization using EEPROM-stored coefficients (O0–O3, G0–G3, L0–L1). Its analog front end includes chopper-stabilized instrumentation amplification (gain 4.49–10.6 V/V), differential stages, and coarse offset DACs.

Diagnostics are implemented via digital logic and firmware: input wire break detection (InP/InN), supply rail monitoring (POR thresholds at 3.1–3.9 V analog, 2.05–2.7 V digital), and configurable clamping (7-bit low, 9-bit high resolution). The device supports EEPROM reprogramming of transfer curves and filter settings (PFLT 0–9, SSF enable/disable) through the supply pin.

Key Specifications

Parameter	Value and Actual Design Meaning
Pressure Range	0.5–4 bar absolute: maps directly to engine intake manifold vacuum and boost conditions in gasoline/diesel turbo systems.
Analog Output	0.5–4.5 V ratiometric: scales linearly with supply voltage (4.5–5.5 V), enabling direct ADC interfacing without external scaling.
Total Accuracy	±35 mbar over full temperature range: ensures <±1% FS error in 4-bar applications, critical for closed-loop boost control.
Response Time	1 ms to 90% final value (PFLT=0, SSF=1): supports real-time transient pressure tracking during rapid throttle transients.
Operating Temp	–40°C to +150°C: qualified for under-hood placement near turbochargers and exhaust manifolds without derating.
Supply Voltage	4.5–5.5 V nominal, 18 V absolute max: withstands automotive load dump and cold-crank conditions with integrated overvoltage protection.
Package	DFN14 (4 × 5 mm): surface-mount footprint compatible with automated assembly and thermally robust for high-power-density engine bays.

Pinout & Package

MLX90817LXE-DBG-001-SP uses a 14-pin DFN package (4 mm × 5 mm, 0.5 mm pitch) with wettable flanks, marked per JEDEC MO-229. Pin 1 is located at bottom-left corner (marked by dot); pin numbering follows standard counter-clockwise sequence from bottom view.

Pin/Terminal	Circuit Role	Design Meaning
1, 3, 5	Test pin	Factory programming and diagnostic access points; not connected in end-user operation.
2, 4, 6, 9, 11, 12, 13	Not Connected	No internal connection; must be left floating or grounded per PCB layout guidelines.
7	Supply input (V_DD)	Main power input with integrated reverse-voltage (-14 V) and overvoltage (18 V) protection; enables single-rail system integration.
8	Analog output (V_ANA)	Ratiometric voltage output (0.5–4.5 V); drives ≥4.7 kΩ loads; features active rail clamping for fault signaling.
10, 14	Ground (GND)	Dual ground pins reduce impedance and improve EMC performance in noisy automotive environments.

Key Features

Feature	Design Value
System-in-Package Integration	MEMS sensor, analog front/back end, 16-bit microcontroller, EEPROM, voltage regulators, and diagnostics all co-packaged-eliminates external signal conditioning and reduces BOM count by ≥5 components.
Programmable Clamping	Configurable low/high clamp levels (0.3 V / 4.7 V for DBG-001) provide unambiguous fault indication without requiring external comparators or MCU polling.
Automotive Diagnostics	Built-in broken-track detection, supply rail monitoring, and overpressure/underpressure flags meet ISO 26262 ASIL-B readiness requirements for safety-critical pressure feedback loops.
Factory Calibration	EEPROM-stored transfer curve (P1=0.5 bar, P2=4 bar, O1=0.5 V, O2=4.5 V) and temperature compensation coefficients eliminate field calibration effort and ensure first-pass design compliance.
EMC Robustness	Optimized CMOS architecture and integrated protection deliver best-in-class automotive EMC immunity-validated per ISO 11452-2/4/8 and ISO 7637-2/3.

Applications

Manifold Absolute Pressure (MAP) Sensing	Turbocharger Boost Control
Use Scenario: Monitoring intake manifold pressure in gasoline direct injection engines to calculate air mass flow for fuel injection timing and EGR control. IC Role / Device Role / Timing Role: Primary absolute pressure transducer delivering real-time analog signal to ECU with <1 ms latency and ±35 mbar accuracy across -40°C to 150°C. Use Value: Enables precise stoichiometric combustion control, reducing NOx emissions and improving fuel economy by maintaining optimal lambda ratio under transient load conditions.	Use Scenario: Closed-loop regulation of variable geometry turbocharger (VGT) vanes using real-time boost pressure feedback in diesel powertrains. IC Role / Device Role / Timing Role: High-speed analog pressure sensor with 1 ms response time and programmable clamping, interfaced directly to turbo actuator controller. Use Value: Prevents turbo overboost and compressor surge by enabling fast-acting pressure limiting-critical for meeting Euro 6d and EPA Tier 4 emission standards.
LPG/CNG Fuel Injection Monitoring	Engine Crankcase Pressure Monitoring
Use Scenario: Measuring absolute pressure upstream of LPG/CNG injectors to compensate for tank pressure variations during refueling and cold starts. IC Role / Device Role / Timing Role: Ratiometric analog sensor with 0.5–4.5 V output and factory calibration for 0.5–4 bar range, operating reliably at 150°C near fuel rails. Use Value: Eliminates need for external temperature compensation or lookup tables, ensuring consistent air-fuel ratio across wide ambient and fuel temperature ranges.	Use Scenario: Detecting abnormal crankcase pressure rise indicative of piston ring wear or head gasket failure in heavy-duty diesel engines. IC Role / Device Role / Timing Role: Low-drift absolute pressure sensor with extended temperature range and diagnostic outputs (clamping, broken-track) for predictive maintenance alerts. Use Value: Provides early warning of mechanical degradation before catastrophic failure, supporting uptime-critical applications in commercial transport and construction equipment.

Manifold Absolute Pressure (MAP) Sensing

Turbocharger Boost Control

Use Scenario: Monitoring intake manifold pressure in gasoline direct injection engines to calculate air mass flow for fuel injection timing and EGR control.

IC Role / Device Role / Timing Role: Primary absolute pressure transducer delivering real-time analog signal to ECU with <1 ms latency and ±35 mbar accuracy across -40°C to 150°C.

Use Value: Enables precise stoichiometric combustion control, reducing NOx emissions and improving fuel economy by maintaining optimal lambda ratio under transient load conditions.

Use Scenario: Closed-loop regulation of variable geometry turbocharger (VGT) vanes using real-time boost pressure feedback in diesel powertrains.

IC Role / Device Role / Timing Role: High-speed analog pressure sensor with 1 ms response time and programmable clamping, interfaced directly to turbo actuator controller.

Use Value: Prevents turbo overboost and compressor surge by enabling fast-acting pressure limiting-critical for meeting Euro 6d and EPA Tier 4 emission standards.

LPG/CNG Fuel Injection Monitoring

Engine Crankcase Pressure Monitoring

Use Scenario: Measuring absolute pressure upstream of LPG/CNG injectors to compensate for tank pressure variations during refueling and cold starts.

IC Role / Device Role / Timing Role: Ratiometric analog sensor with 0.5–4.5 V output and factory calibration for 0.5–4 bar range, operating reliably at 150°C near fuel rails.

Use Value: Eliminates need for external temperature compensation or lookup tables, ensuring consistent air-fuel ratio across wide ambient and fuel temperature ranges.

Use Scenario: Detecting abnormal crankcase pressure rise indicative of piston ring wear or head gasket failure in heavy-duty diesel engines.

IC Role / Device Role / Timing Role: Low-drift absolute pressure sensor with extended temperature range and diagnostic outputs (clamping, broken-track) for predictive maintenance alerts.

Use Value: Provides early warning of mechanical degradation before catastrophic failure, supporting uptime-critical applications in commercial transport and construction equipment.

Equivalent & Alternatives

The following parts are listed as comparable options for similar absolute pressure sensing applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MPX5700A	700 kPa range (0–7 bar), 0.2–4.8 V output, no integrated microcontroller or diagnostics; requires external compensation.	Lacks automotive diagnostics, programmable clamping, and EEPROM calibration-suitable only for non-safety-critical industrial use.	Select MPX5700A only for cost-sensitive, non-automotive applications where full AEC-Q100 qualification and fault reporting are unnecessary.
ADIS16470	Inertial measurement unit (IMU) with integrated pressure sensor (0–120 kPa), SPI digital interface, no ratiometric analog output.	Designed for AHRS/navigation; pressure channel is secondary and uncalibrated for absolute accuracy-unsuitable for engine control.	ADIS16470 is not a functional alternative; its pressure capability is incidental and lacks required accuracy, range, or automotive qualification for MAP/boost roles.

Compared with MPX5700A and ADIS16470, MLX90817LXE-DBG-001-SP provides automotive-grade accuracy, integrated diagnostics, and factory calibration in a drop-in analog solution-whereas MPX5700A demands external compensation and ADIS16470 offers no calibrated pressure path for engine management.

Availability

MLX90817LXE-DBG-001-SP is available at Aetrix Electronics and suitable for automotive engine control units, turbocharger actuation systems, and alternative fuel injection monitoring requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant traceability.

Supply support for MLX90817LXE-DBG-001-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, pressure, and infrared sensors for automotive and industrial markets, with >30 years of sensor design heritage and AEC-Q100 leadership.

The MLX90817 product line was engineered specifically for high-reliability automotive pressure sensing-delivering integrated signal conditioning, diagnostics, and environmental resilience to replace multi-component discrete solutions in engine management systems.

FAQ

What is the calibrated pressure range and output span of the MLX90817LXE-DBG-001-SP?

The MLX90817LXE-DBG-001-SP is factory calibrated for an absolute pressure range of 0.5–4 bar, producing a ratiometric analog output spanning 0.5–4.5 V at nominal 5 V supply. This mapping is stored in on-chip EEPROM and remains stable over the full –40°C to 150°C operating temperature range, with total accuracy of ±35 mbar. The MLX90817LXE-DBG-001-SP does not require user calibration for this configured range.

Does the MLX90817LXE-DBG-001-SP support reprogramming of its pressure transfer curve?

Yes, the MLX90817LXE-DBG-001-SP supports full EEPROM reprogramming of its pressure transfer curve-including P1/P2 breakpoints, O1/O2 output values, clamping levels, and temperature compensation coefficients (O0–O3, G0–G3)-via the supply pin using Melexis' proprietary communication protocol. This allows customization for non-standard pressure ranges or media-specific compensation without hardware changes. The MLX90817LXE-DBG-001-SP retains factory defaults until explicitly reprogrammed.

How does the MLX90817LXE-DBG-001-SP implement fault detection and reporting?

The MLX90817LXE-DBG-001-SP integrates multiple autonomous diagnostics: broken-track detection on InP/InN inputs, supply rail monitoring (analog/digital POR), over/under-pressure flags, and configurable output clamping. Faults trigger immediate rail-level output shifts (e.g., 0.3 V low clamp or 4.7 V high clamp), eliminating the need for external comparators or continuous MCU polling. These diagnostics are enabled by default and stored in EEPROM, making the MLX90817LXE-DBG-001-SP compliant with ASIL-B functional safety requirements.

What is the typical response time of the MLX90817LXE-DBG-001-SP under dynamic pressure changes?

The MLX90817LXE-DBG-001-SP achieves a 1 ms response time (time to reach 90% of final value after a pressure step) when using default filter settings (PFLT = 0, SSF enabled). This is confirmed in Table 13 of the datasheet and applies to the DBG-001 configuration. Filter depth can be increased (PFLT = 1–9) to reduce noise at the expense of latency-e.g., PFLT = 5 yields ~13.7 ms response. The MLX90817LXE-DBG-001-SP's analog output updates every 200 µs internally, enabling real-time control loop execution.

Is the MLX90817LXE-DBG-001-SP qualified for automotive under-hood applications?

Yes, the MLX90817LXE-DBG-001-SP is fully AEC-Q100 qualified for Grade 0 (–40°C to +150°C) operation and designed for direct under-hood mounting. It features integrated overvoltage (18 V) and reverse-voltage (–14 V) protection, burst pressure rating of 15 bar, and validated EMC performance per ISO 11452 and ISO 7637 standards. Its DFN14 package has wettable flanks for solder joint inspection, and the MLX90817LXE-DBG-001-SP meets automotive humidity resistance and thermal cycling requirements.

MLX90817LXE-DBG-001-SP Specifications

Product attributes: Attribute value

Manufacturer:: Melexis Technologies NV

Series:: -

Package/Case:: 14-BFDFN Exposed Pad

Packaging:: Tray

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-SP FAQ

1.How can I place an order for MLX90817LXE-DBG-001-SP through Aetrix?

Please submit a Request for Quotation (RFQ) for MLX90817LXE-DBG-001-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 MLX90817LXE-DBG-001-SP reliable?

The price and inventory of MLX90817LXE-DBG-001-SP 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-SP is usually 5 days.

3.What payment methods are accepted for MLX90817LXE-DBG-001-SP?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90817LXE-DBG-001-SP transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MLX90817LXE-DBG-001-SP?

MLX90817LXE-DBG-001-SP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MLX90817LXE-DBG-001-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 MLX90817LXE-DBG-001-SP?

For technical support, including MLX90817LXE-DBG-001-SP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90817LXE-DBG-001-SP requirements.

6.How does Aetrix verify that MLX90817LXE-DBG-001-SP is sourced from the original manufacturer or authorized distributors?

All MLX90817LXE-DBG-001-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 MLX90817LXE-DBG-001-SP meets industry standards.

7.What is the process for return or replacement of MLX90817LXE-DBG-001-SP?

All MLX90817LXE-DBG-001-SP units undergo pre-shipment inspection (PSI). If there is an issue with MLX90817LXE-DBG-001-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 MLX90817LXE-DBG-001-SP part is unused and in its original packaging.

Return procedure for MLX90817LXE-DBG-001-SP:

1.Submit a request within 90 days.

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

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