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Melexis Technologies NV MLX90817LXE-DCG-000-SP
- Part No.:
- MLX90817LXE-DCG-000-SP
- Manufacturer:
- Melexis Technologies NV
- Category:
- Pressure Sensors, Transducers
- Package:
- 14-BFDFN Exposed Pad
- Datasheet:
-
MLX90817LXE-DCG-000-SP.pdf
- Description:
- SENSOR 14DFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,248
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Product details
Overview
MLX90817LXE-DCG-000-SP from Melexis is an automotive-grade absolute pressure sensor IC with ratiometric analog output, 0.2–4 bar full-scale range, 0.4–4.65 V output voltage, and factory calibration for harsh-media applications. It integrates MEMS sensing element, 16-bit microcontroller, analog front end, temperature compensation, and diagnostic features including broken-track detection and clamping. Used in turbo manifold air pressure monitoring under extreme thermal stress.
For engineers reviewing the MLX90817LXE-DCG-000-SP datasheet, pinout, applications, or equivalent options, key selection criteria include its -40°C to 150°C operating range, 28.6 mBar total pressure accuracy, DFN14 package, ratiometric output scaling, and programmable diagnostics for automotive safety-critical systems.
Technical Context
The MLX90817LXE-DCG-000-SP employs a piezoresistive Wheatstone bridge on a silicon diaphragm with built-in vacuum reference, coupled to a 16-bit ADC and DSP-based 16-bit microcontroller for real-time temperature compensation and pressure linearization. Its analog front end includes chopper-stabilized instrumentation amplification with programmable gain (4.49–10.6 V/V) and coarse offset DAC.
Diagnostics are implemented via EEPROM-configurable thresholds: broken-track detection activates rail-driven output clamping, while over/under-voltage, over/under-pressure, and supply-rail fault conditions trigger diagnostic flags. The device supports two digital filters-PFLT (programmable first-order LPF, response time 0.93–203.8 ms) and SSF (small-signal filter)-to balance noise rejection and dynamic response.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Pressure Range | 0.2 to 4 bar absolute - supports turbocharged engine manifold pressure sensing with margin above typical 3.5 bar peak. |
| Analog Output | 0.4 V to 4.65 V ratiometric - scales linearly with supply voltage (4.5–5.5 V), enabling direct interface with 5 V ADCs without external scaling. |
| Accuracy | ±28.6 mBar total pressure error - includes initial offset, gain, linearity, and temperature drift across -40°C to 150°C. |
| Response Time | 0.93 ms (PFLT = 0) - meets fast transient detection requirements for boost control and knock prevention loops. |
| Operating Temp | -40°C to +150°C - qualified for under-hood placement adjacent to turbochargers and exhaust manifolds. |
| Supply Voltage | 4.5 V to 5.5 V nominal - includes ±10% tolerance and robust overvoltage protection up to 18 V. |
| Burst Pressure | 15 bar - withstands short-term overpressure events common during cold-start or EGR valve faults. |
Pinout & Package
MLX90817LXE-DCG-000-SP is housed in a 4×5 mm, 14-pin DFN package (JEDEC MO-229, variant XE) with wettable flanks for automated optical inspection. The package is qualified for harsh-media exposure per DCG-000 option code, featuring media-resistant encapsulation and optimized die attach for LPG/CNG compatibility.
| 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 (VDD) | Primary power input with integrated overvoltage (-14 V reverse, +18 V forward) and ESD protection. |
| 8 | Analog output (VANA) | Ratiometric voltage output; drives 4.7 kΩ load; supports clamping to rails during fault conditions. |
| 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 | Combines MEMS sensor, 16-bit microcontroller, analog front end, voltage regulators, and EEPROM in single DFN14 - eliminates external signal conditioning and reduces BOM count by ≥4 components. |
| Programmable diagnostics | Configurable clamping levels (0–12.5% and 50–100% of VDD), broken-track detection, and fault flagging via EEPROM - enables ASIL-B compliant functional safety architecture without external monitoring IC. |
| Harsh-media qualification | DCG-000 variant uses chemically resistant encapsulation and assembly process validated for LPG/CNG injector environments - avoids sensor drift or corrosion in fuel vapor exposure. |
| Temperature-compensated transfer curve | EEPROM-stored 3rd-order polynomial coefficients (O0–O3, G0–G3, L0–L1) enable <1.5× center-temperature accuracy factor over full -40°C to 150°C range - eliminates need for host MCU compensation algorithms. |
| EMC-optimized architecture | Chopper-stabilized AFE, differential sensing, and high-density CMOS design achieve best-in-class automotive EMC immunity - passes ISO 11452-2/4/8 without external filtering. |
Applications
| Turbo Manifold Air Pressure Sensing | LPG/CNG Injector Pressure Monitoring |
|---|---|
Use Scenario: Real-time measurement of intake manifold pressure in turbocharged gasoline engines to optimize boost control, torque management, and knock suppression. IC Role / Device Role / Timing Role: Primary absolute pressure transducer delivering ratiometric analog output synchronized to engine control unit's 10 kHz sampling rate. Use Value: ±28.6 mBar accuracy and 0.93 ms response time enable closed-loop boost pressure control within ±2% target deviation across full thermal range. | Use Scenario: Continuous monitoring of fuel rail pressure in bi-fuel vehicles using liquefied petroleum gas or compressed natural gas. IC Role / Device Role / Timing Role: Harsh-media-tolerant pressure sensor interfacing directly with fuel injection ECU via analog input channel. Use Value: DCG-000's chemically resistant packaging prevents long-term drift in hydrocarbon-rich environments, maintaining calibration stability over 10-year vehicle lifetime. |
| Engine Start-Stop Manifold Vacuum Detection | Exhaust Gas Recirculation (EGR) Valve Feedback |
Use Scenario: Detecting vacuum level during engine cranking and start-stop cycles to validate intake system integrity before fuel injection. IC Role / Device Role / Timing Role: Low-range absolute pressure sensor providing early vacuum confirmation signal to PCM within 5 ms of crankshaft rotation. Use Value: 0.2 bar lower limit and 0.4 V output floor ensure reliable detection of sub-atmospheric conditions down to 20 kPa, critical for cold-start emissions compliance. | Use Scenario: Closed-loop feedback for EGR valve position and flow rate in diesel and gasoline direct-injection engines. IC Role / Device Role / Timing Role: Differential pressure reference sensor measuring delta-P across EGR cooler or valve to infer mass flow. Use Value: Programmable clamping and broken-track diagnostics provide fail-safe output behavior required for ASIL-B EGR control, preventing unintended valve actuation during wiring faults. |
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 ASIL-ready diagnostics, temperature compensation, and programmable clamping - suitable only for non-safety-critical industrial use. | Select MPX5700A only for cost-sensitive, non-automotive applications where host MCU handles full compensation and fault management. |
| INFINEON DPS310 | I²C digital output, 0–1260 hPa range (0–1.26 bar), ±0.005 hPa RMS noise, no harsh-media rating. | Optimized for barometric and low-pressure HVAC sensing; insufficient range and media resistance for turbo or fuel systems. | Choose DPS310 for consumer or cabin-pressure applications requiring ultra-low noise and digital interface - not viable for engine bay deployment. |
Compared with MPX5700A and DPS310, the MLX90817LXE-DCG-000-SP delivers integrated signal conditioning, automotive-grade diagnostics, and harsh-media reliability in a single chip - reducing system-level validation effort and eliminating external compensation firmware development.
Availability
MLX90817LXE-DCG-000-SP is available at Aetrix Electronics and suitable for turbocharged engine control units, LPG/CNG fuel systems, start-stop vacuum detection, and EGR valve feedback requiring stable component supply across extended automotive lifecycles.
Supply support for MLX90817LXE-DCG-000-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 ISO/TS 16949 certification and AEC-Q200 qualification expertise.
The MLX90817 product line targets high-reliability automotive pressure sensing, specifically engineered for under-hood deployment in turbocharging, fuel injection, and emissions control systems where precision, durability, and functional safety are mandatory.
FAQ
What is the pressure range and output voltage specification for MLX90817LXE-DCG-000-SP?
The MLX90817LXE-DCG-000-SP has a calibrated absolute pressure range of 0.2 to 4 bar and delivers a ratiometric analog output spanning 0.4 V to 4.65 V at nominal 5 V supply. This output scales linearly with supply voltage between 4.5 V and 5.5 V, ensuring consistent interface behavior across board-level voltage tolerances. The DCG-000 option includes harsh-media qualification for LPG/CNG compatibility.
Does MLX90817LXE-DCG-000-SP support functional safety standards like ISO 26262?
Yes, MLX90817LXE-DCG-000-SP includes multiple hardware-level diagnostics required for ASIL-B compliance: broken-track detection, over/under-voltage monitoring, clamping-level programmability, and internal fault flagging. These features are implemented in the on-chip 16-bit microcontroller and EEPROM, enabling safe failure modes without external supervision - confirmed in Melexis' FMEDA report for the MLX90817 family.
How is MLX90817LXE-DCG-000-SP calibrated, and can it be reprogrammed in-system?
MLX90817LXE-DCG-000-SP undergoes final-test calibration at Melexis, with pressure transfer curves, temperature compensation coefficients (O0–O3, G0–G3), and filter settings stored in on-chip EEPROM. Reprogramming is supported via the supply pin using 6.2–7.8 V communication mode entry, allowing field updates of calibration parameters, clamping levels, and diagnostic thresholds without removing the device from the PCB.
What package type and pin configuration does MLX90817LXE-DCG-000-SP use?
MLX90817LXE-DCG-000-SP uses a 4×5 mm, 14-pin DFN package (JEDEC MO-229 variant XE) with wettable flanks. Pin 7 is VDD, pin 8 is analog output, pins 10 and 14 are ground, and pins 1/3/5 are test-only. Seven pins (2,4,6,9,11,12,13) are NC and must remain unconnected. The DCG-000 variant adds media-resistant encapsulation for fuel system use.
What is the typical response time and noise performance of MLX90817LXE-DCG-000-SP?
With default PFLT = 0 and SSF disabled, MLX90817LXE-DCG-000-SP achieves a 90% response time of 0.93 ms to pressure steps and exhibits 2 mVRMS output noise (BW ≤ 50 kHz). Response time increases to 203.8 ms at maximum PFLT = 9, enabling configurable trade-offs between dynamic fidelity and noise rejection for specific control loop bandwidths.
MLX90817LXE-DCG-000-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-DCG-000-SP FAQ
1.How can I place an order for MLX90817LXE-DCG-000-SP through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90817LXE-DCG-000-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-DCG-000-SP reliable?
The price and inventory of MLX90817LXE-DCG-000-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-DCG-000-SP is usually 5 days.
3.What payment methods are accepted for MLX90817LXE-DCG-000-SP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90817LXE-DCG-000-SP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90817LXE-DCG-000-SP?
MLX90817LXE-DCG-000-SP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90817LXE-DCG-000-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-DCG-000-SP?
For technical support, including MLX90817LXE-DCG-000-SP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90817LXE-DCG-000-SP requirements.
6.How does Aetrix verify that MLX90817LXE-DCG-000-SP is sourced from the original manufacturer or authorized distributors?
All MLX90817LXE-DCG-000-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-DCG-000-SP meets industry standards.
7.What is the process for return or replacement of MLX90817LXE-DCG-000-SP?
All MLX90817LXE-DCG-000-SP units undergo pre-shipment inspection (PSI). If there is an issue with MLX90817LXE-DCG-000-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-DCG-000-SP part is unused and in its original packaging.
Return procedure for MLX90817LXE-DCG-000-SP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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