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Melexis Technologies NV MLX90817LXE-DBG-013-SP
- Part No.:
- MLX90817LXE-DBG-013-SP
- Manufacturer:
- Melexis Technologies NV
- Category:
- Pressure Sensors, Transducers
- Package:
- 14-BFDFN Exposed Pad
- Datasheet:
-
MLX90817LXE-DBG-013-SP.pdf
- Description:
- SENSOR 14DFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,883
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Product details
Overview
MLX90817LXE-DBG-013-SP from Melexis is an automotive-grade absolute pressure sensor IC with integrated MEMS sensing element, 16-bit microcontroller, analog front end, and ratiometric analog output. It delivers factory-calibrated 0.2–3 bar absolute pressure measurement with 0.4–4.65 V output, ±33 mBar total accuracy over –40°C to +150°C, and built-in diagnostics for broken-track and overvoltage conditions. Used in turbo manifold air pressure monitoring for engine control units.
For engineers reviewing the MLX90817LXE-DBG-013-SP datasheet, pinout, applications, or equivalent options, this page provides verified technical context, real-world design meaning of key specs, validated pin functions, automotive diagnostic behavior, and confirmed alternative options for manifold pressure sensing systems.
Technical Context
The MLX90817LXE-DBG-013-SP implements a piezoresistive Wheatstone bridge on a vacuum-cavity silicon diaphragm, with signal conditioning via a 3-stage programmable analog front end (gain up to 237.4×), 16-bit differential ADC, and DSP-based temperature compensation using EEPROM-stored O0–O3 and G0–G3 coefficients. Its architecture supports third-order gain/offset compensation and pressure linearization.
It features dual digital filters: a programmable first-order low-pass filter (PFLT = 0–9, response time 0.93–203.8 ms) and a small-signal filter (SSF) that bypasses during fast transients. Diagnostics include clamping-level programming (0–12.5% and 50–100% Vdd), broken-track detection, and rail-driven fault signaling on supply or ground loss.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Pressure Range | 0.2 to 3 bar absolute - matches intake manifold boost pressure in downsized gasoline engines with turbocharging. |
| Analog Output Range | 0.4 V to 4.65 V ratiometric - scales linearly with supply voltage (4.5–5.5 V), enabling direct ADC interfacing without external scaling. |
| Total Pressure Accuracy | ±33 mBar over full temperature range - ensures <±1% FS error at 3 bar, critical for closed-loop boost control. |
| Operating Temperature | –40°C to +150°C - qualified for under-hood placement adjacent to intake manifolds without external thermal shielding. |
| Response Time (PFLT=0) | 1 ms to 90% final value - supports real-time transient pressure tracking during rapid throttle transitions. |
| Supply Voltage Range | 4.5 V to 5.5 V - compatible with standard automotive 5 V regulators; includes reverse-voltage (–14 V) and overvoltage (18 V) protection. |
| Diagnostics | Broken-track, over/under-pressure, over/under-voltage, and clamping-level programmability - enables ASIL-B compliant fault reporting per ISO 26262. |
Pinout & Package
MLX90817LXE-DBG-013-SP uses a rugged 4×5 mm DFN14 (14-pin) package with wettable flanks, optimized for automotive reflow and mechanical stress resilience. Pin 1 is marked with a dot; bottom view orientation shown in Figure 2 of datasheet REV 010.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 5 | Test pin | Factory programming and calibration access; not connected in end application; must be left floating or grounded per layout guidelines. |
| 2, 4, 6, 9, 11, 12, 13 | Not Connected | No internal connection; PCB pads may be omitted or tied to ground for thermal relief; no routing required. |
| 7 | Supply input (VDD) | Main power input; requires 47–100 nF decoupling capacitor placed within 2 mm for EMC robustness and POR stability. |
| 8 | Analog output (VANA) | Ratiometric pressure output; drives 4.7 kΩ pull-up/down loads; supports 47–470 nF capacitive load for noise filtering without instability. |
| 10, 14 | Ground (GND) | Dual ground pins reduce impedance path; must be connected to low-impedance PCB ground plane with multiple vias to minimize offset drift. |
Key Features
| Feature | Design Value |
|---|---|
| System-in-package integration | MEMS sensor, analog front end, 16-bit MCU, EEPROM, voltage regulators, and diagnostics all in single DFN14 - eliminates external signal chain components and reduces BOM count by ≥7 parts. |
| Programmable clamping levels | 7-bit low clamp (0–12.5% Vdd) and 9-bit high clamp (50–100% Vdd) - enables fail-safe output bounding for ECU ADC saturation avoidance during fault conditions. |
| Automotive diagnostics | Real-time broken-track, over/under-voltage, and over/under-pressure detection with rail-driven fault signaling - satisfies diagnostic coverage requirements for ASIL-B functional safety goals. |
| Factory calibration + field reprogrammability | EEPROM stores pressure transfer curve, temperature compensation coefficients, and filter settings - allows post-assembly calibration adjustment without hardware change. |
| High EMC immunity | Optimized CMOS architecture and on-chip overvoltage/reverse-voltage protection (–14 V / +18 V) - meets ISO 11452-2/4/5 for 100 V/m radiated immunity and 1 kV ESD (HBM). |
Applications
| Manifold Absolute Pressure (MAP) Sensing | Turbocharger Boost Control |
|---|---|
Use Scenario: Monitoring intake manifold pressure in gasoline direct injection engines to calculate air mass for fuel injection timing and spark advance. IC Role / Device Role / Timing Role: Primary absolute pressure transducer delivering ratiometric analog output synchronized to ECU ADC sampling at 1–5 kHz. Use Value: ±33 mBar accuracy ensures ≤0.9% air mass error at 3 bar, directly improving stoichiometric combustion control and reducing NOx emissions. | Use Scenario: Closed-loop feedback for variable geometry turbocharger (VGT) actuation based on real-time boost pressure upstream of intercooler. IC Role / Device Role / Timing Role: High-speed pressure sensor with 1 ms response (PFLT=0) enabling dynamic boost setpoint tracking during transient acceleration. Use Value: Fast transient response and wide 0.2–3 bar range support precise boost regulation across engine speeds from idle to redline. |
| LPG/CNG Fuel Injection Monitoring | Engine Start-Stop System Pressure Validation |
Use Scenario: Measuring absolute pressure in LPG or CNG fuel rail to regulate injector pulse width and maintain stoichiometric AFR under varying tank pressure and ambient temperature. IC Role / Device Role / Timing Role: Harsh-media-capable pressure interface (via DCG/DCH variants); MLX90817LXE-DBG-013-SP variant used for non-corrosive gaseous fuel paths. Use Value: –40°C to +150°C operation ensures reliable cold-start performance and hot-soak stability in under-hood fuel systems. | Use Scenario: Validating manifold vacuum level before enabling engine restart in 48 V mild-hybrid start-stop systems to prevent rough combustion or stalling. IC Role / Device Role / Timing Role: Low-pressure threshold detector (0.2 bar lower limit) with programmable clamping and diagnostic flagging for safe restart logic. Use Value: Built-in broken-track and supply-loss diagnostics provide deterministic fault signaling to MCU, eliminating need for external supervision circuitry. |
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, 0.2–4.8 V output, no integrated MCU or diagnostics; analog-only ASIC with temperature compensation only. | Lacks programmable filters, clamping, and ASIL-ready diagnostics; requires external microcontroller for linearization and fault handling. | Choose MPX5700A only for cost-sensitive, non-safety-critical applications where full diagnostic coverage is not required. |
| SSM2205 | 0.1–3 bar range, 0.5–4.5 V output, integrated temperature sensor, but no EEPROM programmability or automotive diagnostics. | Supports basic MAP sensing but lacks broken-track detection, clamping, and configurable PFLT/SSF filters needed for turbocharged engine validation. | Select SSM2205 for simpler naturally aspirated engines where diagnostic depth and reprogrammability are secondary to footprint and cost. |
Compared with MPX5700A and SSM2205, MLX90817LXE-DBG-013-SP provides full system-in-package functionality - including on-chip DSP, EEPROM-programmable diagnostics, and dual digital filtering - enabling single-component ASIL-B-compliant pressure sensing without external signal conditioning or safety software overhead.
Availability
MLX90817LXE-DBG-013-SP is available at Aetrix Electronics and suitable for turbocharged engine control units, LPG/CNG fuel management systems, and start-stop system vacuum validation requiring stable component supply, long-term automotive qualification, and traceable lifecycle management.
Supply support for MLX90817LXE-DBG-013-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 applications, with ISO/TS 16949 certification and AEC-Q200 qualification expertise.
The MLX90817 product line delivers fully integrated, programmable absolute pressure sensors targeting high-reliability engine management, turbo control, and alternative fuel systems where precision, diagnostics, and extended temperature operation are mandatory.
FAQ
What is the pressure range and output voltage specification for MLX90817LXE-DBG-013-SP?
The MLX90817LXE-DBG-013-SP is configured for 0.2 to 3 bar absolute pressure measurement with a ratiometric analog output spanning 0.4 V to 4.65 V at nominal 5 V supply. This range is factory-programmed into its EEPROM and corresponds to Option Code DBG-013 per Melexis ordering documentation. The output scales linearly with supply voltage between 4.5 V and 5.5 V, maintaining proportionality across operating conditions.
Does MLX90817LXE-DBG-013-SP support diagnostic features required for ASIL-B compliance?
Yes, MLX90817LXE-DBG-013-SP includes multiple automotive diagnostics essential for ASIL-B: broken-track detection on supply and ground lines, over/under-voltage monitoring, over/under-pressure flags, and programmable output clamping. These are implemented in hardware and firmware, with fault states signaled via rail-driven analog output. Full diagnostic coverage data and test procedures are documented in the MLX90817 datasheet REV 010, Section "Diagnostics".
Can MLX90817LXE-DBG-013-SP be reprogrammed after soldering to the PCB?
Yes, MLX90817LXE-DBG-013-SP supports field reprogramming via its dedicated test pins (pins 1, 3, 5) using Melexis' standard communication protocol. Calibration curves, clamping levels, filter settings (PFLT/SSF), and diagnostic thresholds can be updated post-assembly without removing the device. Reprogramming requires Melexis' EVB90817 evaluation board and MLX IDE software, with supply voltage raised to 6.2–7.8 V to enter programming mode.
What is the response time of MLX90817LXE-DBG-013-SP under default filter settings?
With default filter settings (PFLT = 0, SSF enabled), MLX90817LXE-DBG-013-SP achieves a 90% response time of 1 ms to a pressure step input. This value is measured per datasheet Table 4 and assumes nominal 5 V supply and ambient temperature. Increasing PFLT to higher values (1–9) extends response time up to 203.8 ms to reduce output noise, allowing trade-off tuning per application requirements.
Is MLX90817LXE-DBG-013-SP qualified for under-hood automotive use?
Yes, MLX90817LXE-DBG-013-SP is AEC-Q100 qualified and rated for continuous operation from –40°C to +150°C, meeting automotive under-hood thermal requirements. Its DFN14 package features ruggedized die attach and mold compound, and the integrated overvoltage (18 V) and reverse-voltage (–14 V) protection ensures resilience against load-dump and battery-reversal events common in 12 V vehicle electrical systems.
MLX90817LXE-DBG-013-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-013-SP FAQ
1.How can I place an order for MLX90817LXE-DBG-013-SP through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90817LXE-DBG-013-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-013-SP reliable?
The price and inventory of MLX90817LXE-DBG-013-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-013-SP is usually 5 days.
3.What payment methods are accepted for MLX90817LXE-DBG-013-SP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90817LXE-DBG-013-SP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90817LXE-DBG-013-SP?
MLX90817LXE-DBG-013-SP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90817LXE-DBG-013-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-013-SP?
For technical support, including MLX90817LXE-DBG-013-SP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90817LXE-DBG-013-SP requirements.
6.How does Aetrix verify that MLX90817LXE-DBG-013-SP is sourced from the original manufacturer or authorized distributors?
All MLX90817LXE-DBG-013-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-013-SP meets industry standards.
7.What is the process for return or replacement of MLX90817LXE-DBG-013-SP?
All MLX90817LXE-DBG-013-SP units undergo pre-shipment inspection (PSI). If there is an issue with MLX90817LXE-DBG-013-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-013-SP part is unused and in its original packaging.
Return procedure for MLX90817LXE-DBG-013-SP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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