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Melexis Technologies NV MLX90809LXG-EAD-000-RE
- Part No.:
- MLX90809LXG-EAD-000-RE
- Manufacturer:
- Melexis Technologies NV
- Category:
- Pressure Sensors, Transducers
- Package:
- 16-SOIC (0.295", 7.50mm Width) Exposed Pad
- Datasheet:
-
MLX90809LXG-EAD-000-RE.pdf
- Description:
- SENSOR 0.73PSID 4.5V 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,174
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Product details
Overview
MLX90809LXG-EAD-000-RE from Melexis is a factory-calibrated, integrated relative pressure sensor delivering ratiometric analog output (0.5–4.5 V) over a 0.05 to –1.05 bar pressure range, with ±1.5%FSO overall accuracy, automotive-grade temperature operation (–40°C to 150°C), and built-in SENT/diagnostic capability. It serves as a primary pressure transducer in vacuum-critical automotive subsystems such as brake boosters and HVAC actuators.
For engineers reviewing the MLX90809LXG-EAD-000-RE datasheet, pinout, applications, or equivalent options, this page provides verified electrical specs, calibrated transfer function details, diagnostic configuration guidance, and validated alternative part comparisons for automotive pressure-sensing designs requiring AEC-Q100 compliance and long-term drift stability.
Technical Context
The MLX90809LXG-EAD-000-RE integrates a piezoresistive MEMS sensing element, 16-bit microcontroller-based DSP, analog front-end with gain/offset compensation, and dual-output circuitry supporting either ratiometric analog (12-bit DAC-driven) or SENT (SAE J2716-compliant) signaling. Its architecture enables real-time pressure linearization, programmable clamping (0.49–0.51 V low / 4.49–4.51 V high), and burst pressure tolerance up to 5 bar.
It features on-chip diagnostics including broken-wire detection, overvoltage/reverse-voltage protection (–14 V at 150°C for 1 hr), and configurable fault reporting via diagnostic logic. The device operates from a 4.5–5.5 V supply, draws 7–8 mA, and achieves 1 ms analog response time (10–90% of 4 V span) with default filter settings (SSF = 1, PFLT = 0).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Pressure Range | 0.05 to –1.05 bar relative: supports vacuum measurement down to ~10 kPa below atmospheric, suitable for brake booster and HVAC vacuum actuation monitoring. |
| Analog Output | 0.5–4.5 V ratiometric: scales linearly with supply voltage; enables direct ADC interfacing without external reference. |
| Accuracy | ±1.5% FSO overall: includes temperature and lifetime drift; ensures stable calibration across –40°C to 150°C without recalibration. |
| Supply Voltage | 4.5–5.5 V: compatible with standard automotive 5 V rails; includes reverse-voltage protection to –14 V. |
| Response Time | 1 ms (analog): fast enough for dynamic vacuum events like rapid brake pedal release or turbocharger wastegate actuation. |
| Diagnostic Clamping | Low: 0.49–0.51 V / High: 4.49–4.51 V: tight 20 mV window enables reliable fault detection in noisy vehicle environments. |
| Package | 16-pin SOIC-like molded package with backside-exposed diaphragm: optimized for sealing against automotive fluids and mechanical stress. |
Pinout & Package
MLX90809LXG-EAD-000-RE uses a 16-pin surface-mount package with backside pressure port and top-side marking. Only one instance of each functional pin type must be connected: one Supply Input (pin 3 or 14), one Ground (pin 6 or 11), and one Analog Output (pins 7, 8, 9, or 10). SENT pins (1, 2, 15, 16) and Test pins (4, 13) are unused in analog mode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 3, 14 | Supply Input (VDD) | Primary power input; accepts 4.5–5.5 V; internal regulators distribute bias to analog/digital blocks. |
| 6, 11 | Ground (GND) | Reference return path; broken-wire detection activates if disconnected during operation. |
| 7, 8, 9, 10 | Analog Output | Ratiometric 0.5–4.5 V signal; load capacitance limited to 470 nF; requires 47 nF decoupling capacitor. |
| 1, 2, 15, 16 | SENT Output | Unused in EAD-000 configuration; must be shorted to GND per design guidelines when analog mode is active. |
| 4, 13 | Test Pin | Factory test access; must be shorted to GND in final application to disable test mode and ensure normal operation. |
| 5, 12 | Not Connected | No internal connection; left floating or tied to GND per layout best practice. |
Key Features
| Feature | Design Value |
|---|---|
| Backside-exposed MEMS diaphragm | Enables direct vacuum coupling while resisting automotive media (oil, coolant, brake fluid) due to robust encapsulation and top-side isolation. |
| Programmable clamping levels | Configurable low/high limits (±10 mV accuracy) allow precise fault thresholding for open-circuit, short-to-rail, or sensor saturation detection. |
| Integrated 16-bit DSP | Performs real-time temperature compensation, pressure linearization, and digital filtering-eliminating need for host MCU computation. |
| Automotive diagnostic suite | Includes broken-track, overpressure, underpressure, overvoltage, and undervoltage detection-all configurable via EEPROM programming. |
| Factory-calibrated transfer curve | Delivers plug-and-play accuracy: 0.05 to –1.05 bar maps to 0.5–4.5 V with ±15 mBar pressure error over full temperature and life cycle. |
Applications
| Brake Booster Vacuum Monitoring | HVAC Actuator Position Feedback |
|---|---|
Use Scenario: Real-time vacuum level tracking in hydraulic brake assist systems to detect leaks or pump failure before driver notice. IC Role / Device Role / Timing Role: Primary pressure transducer providing analog feedback to ECU for closed-loop vacuum control and fault logging. Use Value: ±1.5%FSO accuracy and –40°C to 150°C operation ensure consistent performance across cold starts and under-hood thermal cycling. |
Use Scenario: Measuring vacuum-induced diaphragm displacement in HVAC blend door actuators to verify position and detect binding. IC Role / Device Role / Timing Role: Relative pressure interface converting vacuum differential into proportional analog voltage for position estimation. Use Value: 1 ms response time captures transient actuator motion; backside-exposed package withstands repeated mechanical stress and condensation exposure. |
| Engine Intake Manifold Leak Detection | Seat Lumbar Support Pressure Sensing |
Use Scenario: Detecting slow vacuum decay during key-off testing to identify intake gasket or hose leaks in OBD-II compliant diagnostics. IC Role / Device Role / Timing Role: High-stability vacuum reference sensor enabling sub-10 mBar resolution over extended dwell periods. Use Value: Low output noise (2 mVrms) and programmable filter support high-SNR measurements even with minimal external components (47 nF only). |
Use Scenario: Monitoring air pressure inside lumbar support bladders to regulate inflation/deflation for ergonomic seat adjustment. IC Role / Device Role / Timing Role: Low-range relative pressure sensor interfaced directly to body control module ADC inputs. Use Value: 0.05 to –1.05 bar range matches human-comfort pressure thresholds; ratiometric output eliminates need for precision voltage references. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar relative pressure sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MLX90809LXG-EAD-003-RE | 0–1 bar positive pressure range, same analog output (0.5–4.5 V), identical package and pinout. | Designed for boost pressure or fuel rail monitoring-not vacuum applications. | Select only if measuring above-atmospheric pressure; not interchangeable for vacuum use cases due to inverted transfer function. |
| MPXV7025GP | 0–25 kPa (0–0.25 bar) range, 0.2–4.8 V output, no SENT or diagnostics, smaller SO-8 package. | Lacks automotive diagnostics, temperature range (–40°C to 125°C), and AEC-Q100 qualification. | Use only in non-safety-critical, cost-sensitive industrial vacuum gauges where diagnostic coverage and extended temperature are not required. |
Compared with MLX90809LXG-EAD-000-RE, the EAD-003 variant supports positive-pressure measurement but cannot resolve vacuum below atmospheric pressure, while the MPXV7025GP offers lower cost and size at the expense of diagnostic capability, temperature margin, and long-term drift stability required for automotive deployment.
Availability
MLX90809LXG-EAD-000-RE is available at Aetrix Electronics and suitable for brake system diagnostics, HVAC actuator feedback, and seat lumbar support applications requiring stable component supply, AEC-Q100 compliance, and long-lifecycle availability in automotive production programs.
Supply support for MLX90809LXG-EAD-000-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, infrared, and pressure sensors for automotive and industrial markets, with ISO/TS 16949 and ISO 14001 certification.
The MLX90809 product line delivers fully integrated, factory-calibrated relative pressure sensors targeting demanding automotive subsystems-including brake, HVAC, and occupant comfort-where EMC resilience, diagnostic coverage, and lifetime stability are mandatory.
FAQ
What pressure range does the MLX90809LXG-EAD-000-RE support?
The MLX90809LXG-EAD-000-RE supports a relative pressure range of 0.05 to –1.05 bar, meaning it measures vacuum from slightly above atmospheric pressure down to approximately 10 kPa below ambient. This range is factory-programmed and optimized for applications like brake booster monitoring and HVAC actuator feedback, with the atmospheric pressure point always included in the calibrated transfer function.
Does the MLX90809LXG-EAD-000-RE support SENT output?
No, the MLX90809LXG-EAD-000-RE is configured exclusively for ratiometric analog output (0.5–4.5 V) and does not enable SENT functionality. Its option code EAD-000 specifies analog-only operation; SENT output is only available on variants such as MLX90809LXG-EAD-100-RE, which delivers 193–3896 LSB SENT frames.
What is the accuracy specification for MLX90809LXG-EAD-000-RE over temperature and life?
The MLX90809LXG-EAD-000-RE guarantees ±1.5% Full Span Output (FSO) overall accuracy, encompassing initial calibration error, temperature-induced drift (–40°C to 150°C), and long-term aging effects over the device's operational lifetime. This value is confirmed in Table 4 of the datasheet and applies to both pressure and output voltage domains.
How should unused SENT and Test pins be handled in MLX90809LXG-EAD-000-RE circuits?
For MLX90809LXG-EAD-000-RE, all SENT output pins (1, 2, 15, 16) and both Test pins (4, 13) must be shorted to ground in the final PCB layout. This disables SENT mode and prevents unintended test-mode activation, ensuring stable analog operation and proper diagnostic behavior per Melexis application guidelines.
Is MLX90809LXG-EAD-000-RE qualified to AEC-Q100 standards?
Yes, the MLX90809LXG-EAD-000-RE is fully AEC-Q100 qualified, including stress testing for temperature cycling, humidity, and mechanical shock. Its burst pressure rating of 5 bar (per AEC-Q100-002) and operation over –40°C to 150°C confirm its suitability for under-hood automotive applications requiring high reliability and long-term stability.
MLX90809LXG-EAD-000-RE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Melexis Technologies NV
- Series:
- -
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width) Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- Board Mount
- Pressure Type:
- Differential
- Operating Pressure:
- -15.23PSI ~ 0.73PSI (-105kPa ~ 5kPa)
- Output Type:
- Analog Voltage
- Output:
- 0.5 V ~ 4.5 V
- Accuracy:
- ±1.5%
- Voltage - Supply:
- 4.5V ~ 5.5V
- Port Size:
- -
- Port Style:
- No Port
- Features:
- Amplified Output, Temperature Compensated
- Termination Style:
- Gull Wing
- Maximum Pressure:
- -
- Operating Temperature:
- -40°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
MLX90809LXG-EAD-000-RE FAQ
1.How can I place an order for MLX90809LXG-EAD-000-RE through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90809LXG-EAD-000-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 MLX90809LXG-EAD-000-RE reliable?
The price and inventory of MLX90809LXG-EAD-000-RE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MLX90809LXG-EAD-000-RE is usually 5 days.
3.What payment methods are accepted for MLX90809LXG-EAD-000-RE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90809LXG-EAD-000-RE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90809LXG-EAD-000-RE?
MLX90809LXG-EAD-000-RE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90809LXG-EAD-000-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 MLX90809LXG-EAD-000-RE?
For technical support, including MLX90809LXG-EAD-000-RE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90809LXG-EAD-000-RE requirements.
6.How does Aetrix verify that MLX90809LXG-EAD-000-RE is sourced from the original manufacturer or authorized distributors?
All MLX90809LXG-EAD-000-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 MLX90809LXG-EAD-000-RE meets industry standards.
7.What is the process for return or replacement of MLX90809LXG-EAD-000-RE?
All MLX90809LXG-EAD-000-RE units undergo pre-shipment inspection (PSI). If there is an issue with MLX90809LXG-EAD-000-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 MLX90809LXG-EAD-000-RE part is unused and in its original packaging.
Return procedure for MLX90809LXG-EAD-000-RE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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