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Melexis Technologies NV MLX90809LXG-EAD-100-SP
- Part No.:
- MLX90809LXG-EAD-100-SP
- Manufacturer:
- Melexis Technologies NV
- Category:
- Pressure Sensors, Transducers
- Package:
- 16-SOIC (0.295", 7.50mm Width) Exposed Pad
- Datasheet:
-
MLX90809LXG-EAD-100-SP.pdf
- Description:
- SENSOR 0.73PSID 12BIT 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,753
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Product details
Overview
MLX90809LXG-EAD-100-SP from Melexis is a factory-calibrated, automotive-grade relative pressure sensor delivering SENT digital output with 0.05 to −1.2 bar pressure range, ±20 mBar accuracy over temperature and life, 12-bit pressure resolution (193–3896 LSB), and integrated diagnostics for vacuum sensing in engine intake manifolds and brake boosters.
For engineers reviewing the MLX90809LXG-EAD-100-SP datasheet, pinout, applications, or equivalent options, this page provides verified electrical specs, SENT protocol timing compliance, diagnostic configuration details, package dimensions, and validated alternative part options for vacuum measurement systems requiring AEC-Q100 qualification and robust EMC performance.
Technical Context
The MLX90809LXG-EAD-100-SP integrates a piezoresistive MEMS sensing element, 16-bit microcontroller-based DSP, analog front-end, SENT driver, and on-chip voltage regulators. Its architecture supports programmable clamping levels (1–4088 LSB), configurable filter settings, and pressure linearization across −40°C to +150°C.
It implements broken-wire detection, overvoltage protection (up to +18 V), reverse-voltage tolerance (−14 V at 150°C), and diagnostic logic for open-circuit, short-to-rail, overpressure, and undervoltage conditions-all stored in EEPROM and accessible via programming interface.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Pressure Range | 0.05 to −1.2 bar relative: enables precise vacuum monitoring in diesel intake and brake assist systems. |
| Output Format | SENT compliant with SAE J2716 Jan 2010: delivers 12-bit pressure data per frame with CRC, supporting high-noise automotive environments. |
| Accuracy | ±20 mBar over life and temperature: ensures stable calibration without field recalibration in harsh under-hood applications. |
| Response Time | 3–4 SENT frames: <10 ms total latency for real-time engine control loop feedback. |
| Supply Voltage | 4.5–5.5 V: compatible with standard 5 V automotive power rails and tolerant of battery transients. |
| Operating Temp | −40°C to +150°C: qualified for placement near engines, transmissions, and exhaust components. |
| Burst Pressure | 5 bar: withstands accidental overpressure events without mechanical failure. |
Pinout & Package
MLX90809LXG-EAD-100-SP uses a 16-pin SOIC package (10.33 mm × 7.7 mm × 2.45 mm max) with back-side pressure port and exposed die cavity for direct media contact. Pin assignment supports single-point connection: only one supply (pin 3 or 14), one ground (pin 6 or 11), and one SENT output (pin 1, 2, 15, or 16) required per application.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 15, 16 | SENT Output | Differential SENT signal driver; any one pin suffices for connection-others left unconnected or tied to GND per layout requirements. |
| 3, 14 | Supply Input (VDD) | 5 V nominal input with integrated overvoltage protection up to +18 V and reverse-voltage tolerance to −14 V. |
| 6, 11 | Ground (GND) | Reference return path for analog and digital circuits; broken-wire detection triggers if disconnected. |
| 4, 13 | Test Pin | Factory test access; recommended to tie to GND when using SENT output to suppress analog interference. |
| 5, 12 | Not Connected | No internal connection; must remain floating-no routing or soldering permitted. |
| 7–10 | Analog Output | Unused in EAD-100 variant; must be left floating or tied to GND per application note guidance to avoid noise coupling. |
Key Features
| Feature | Design Value |
|---|---|
| SENT Protocol Compliance | SAE J2716 Jan 2010 certified output with 12-bit pressure data, status nibble, and CRC-enables plug-and-play integration with modern ECU receivers. |
| Integrated Diagnostics | Real-time fault detection including open-circuit, short-to-rail, overpressure, undervoltage, and broken-wire-reduces need for external monitoring circuitry. |
| Programmable Clamping | Configurable low/high clamping thresholds (1–4088 LSB) with ±10 mV accuracy-supports fail-safe signaling within ECU-defined safety limits. |
| Back-Side Pressure Port | Exposed silicon diaphragm on package underside-provides direct media contact and enhanced resistance to oil, coolant, and brake fluid exposure. |
| EMC Robustness | Optimized CMOS architecture and on-chip filtering deliver best-in-class automotive EMC immunity-meets stringent OEM radiated/conducted emission requirements. |
Applications
| Engine Intake Manifold Vacuum Sensing | Brake Booster Vacuum Monitoring |
|---|---|
Use Scenario: Real-time vacuum level measurement in gasoline/diesel engine intake manifolds for load estimation and fuel injection control. IC Role / Device Role / Timing Role: Primary SENT-output pressure transducer providing 12-bit vacuum data every 3–4 frames to ECU for closed-loop air-fuel ratio correction. Use Value: Enables accurate torque prediction and transient response during throttle tip-in/out, reducing emissions and improving drivability. | Use Scenario: Continuous vacuum level monitoring in hydraulic brake boosters to detect loss of assist and trigger warning signals. IC Role / Device Role / Timing Role: Safety-critical SENT sensor feeding vacuum status to vehicle stability control module with diagnostic flagging for open-circuit or overpressure faults. Use Value: Supports ASIL-B functional safety requirements by delivering validated vacuum data with built-in fault reporting-no external supervision needed. |
| Clogged Air Filter Detection | Vacuum-Assisted Seat Adjustment |
Use Scenario: Differential vacuum measurement across air filter to identify restriction and trigger maintenance alerts before engine performance degrades. IC Role / Device Role / Timing Role: High-accuracy relative pressure sensor detecting ΔP shifts as small as 5 mBar across filter media using calibrated 0.05 to −1.2 bar range. Use Value: Extends service intervals and prevents turbocharger damage by enabling predictive maintenance based on actual airflow impedance-not time-based schedules. | Use Scenario: Occupant-responsive lumbar support and seat position adjustment using vacuum actuators controlled by cabin ECU. IC Role / Device Role / Timing Role: Low-power SENT pressure feedback device confirming actuator seal integrity and position via vacuum level verification. Use Value: Improves occupant comfort and system reliability by validating vacuum hold capability-eliminates false actuation errors due to slow leaks. |
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-007 | Analog output (0.5–4.5 V), 0 to −1 bar range, no SENT interface | Suitable for legacy ECUs lacking SENT receivers; requires external ADC and signal conditioning | Select when retrofitting older platforms or where SENT infrastructure is unavailable. |
| MPXV7025DP | 0–25 kPa differential range, analog ratiometric output, no integrated diagnostics or programmability | Lacks SENT, clamping, or fault reporting-requires external supervision circuitry for safety-critical use | Choose only for cost-sensitive non-safety applications with simple vacuum monitoring needs and no diagnostic requirements. |
Compared with MLX90809LXG-EAD-100-SP, EAD-007 offers analog compatibility but sacrifices digital robustness and embedded diagnostics, while MPXV7025DP provides basic functionality at lower cost but demands additional design effort for fault handling and signal integrity in automotive environments.
Availability
MLX90809LXG-EAD-100-SP is available at Aetrix Electronics and suitable for engine management systems, brake assist modules, and HVAC vacuum actuators requiring stable component supply, AEC-Q100 qualification, and long-term lifecycle continuity.
Supply support for MLX90809LXG-EAD-100-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, ISO/TS 16949 and ISO14001 certified.
The MLX90809 product line delivers fully integrated, factory-calibrated pressure sensing solutions designed specifically for demanding automotive vacuum and low-pressure measurement applications with embedded diagnostics and SENT output.
FAQ
What output protocol does the MLX90809LXG-EAD-100-SP use?
The MLX90809LXG-EAD-100-SP uses the SENT (Single Edge Nibble Transmission) protocol compliant with SAE J2716 Jan 2010. It delivers 12-bit pressure data per frame with status nibble and CRC checksum. This digital output eliminates analog noise susceptibility and simplifies ECU interface design compared to ratiometric analog variants like EAD-007. The MLX90809LXG-EAD-100-SP does not support analog output mode.
What is the pressure range and accuracy of the MLX90809LXG-EAD-100-SP?
The MLX90809LXG-EAD-100-SP measures relative pressure from 0.05 to −1.2 bar with ±20 mBar total accuracy over temperature (−40°C to +150°C) and lifetime. This specification reflects combined effects of initial calibration error, thermal drift, and long-term stability-verified per AEC-Q100 stress testing. Accuracy is expressed directly in pressure units, not %FSO, due to the asymmetric vacuum range.
Does the MLX90809LXG-EAD-100-SP require external components for basic operation?
Yes-the MLX90809LXG-EAD-100-SP requires a 47 nF decoupling capacitor on the VDD line and a 2.2 nF capacitor on the SENT output pin per Melexis application guidance. Additionally, one analog output pin and the test pin (pins 4 or 13) must be tied to GND when operating in SENT mode to suppress cross-talk. No pull-up resistors or level shifters are needed for SENT interface.
How is diagnostic functionality implemented in the MLX90809LXG-EAD-100-SP?
The MLX90809LXG-EAD-100-SP embeds diagnostics including broken-wire detection (on VDD/GND lines), overpressure/underpressure flags, open-circuit SENT output reporting, and supply rail monitoring. Diagnostic states are encoded in the SENT status nibble and can be configured via EEPROM programming. Faults trigger clamped output values (1–4088 LSB) and persist until cleared by host ECU command or power cycle.
What package type and mounting orientation does the MLX90809LXG-EAD-100-SP use?
The MLX90809LXG-EAD-100-SP uses a 16-pin SOIC package (10.33 mm × 7.7 mm × 2.45 mm max) with back-side pressure port. The pressure-sensitive diaphragm is located on the underside of the package-requiring mounting with the marked side (top) facing away from the measured medium. Sealing must accommodate the exposed cavity; Melexis recommends silicone gasket or O-ring compression against a machined surface.
MLX90809LXG-EAD-100-SP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Melexis Technologies NV
- Series:
- -
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width) Exposed Pad
- Packaging:
- Bulk
- Product Status:
- Active
- Applications:
- Board Mount
- Pressure Type:
- Differential
- Operating Pressure:
- -17.4PSI ~ 0.73PSI (-120kPa ~ 5kPa)
- Output Type:
- SENT
- Output:
- 12 b
- 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-100-SP FAQ
1.How can I place an order for MLX90809LXG-EAD-100-SP through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90809LXG-EAD-100-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 MLX90809LXG-EAD-100-SP reliable?
The price and inventory of MLX90809LXG-EAD-100-SP 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-100-SP is usually 5 days.
3.What payment methods are accepted for MLX90809LXG-EAD-100-SP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90809LXG-EAD-100-SP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90809LXG-EAD-100-SP?
MLX90809LXG-EAD-100-SP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90809LXG-EAD-100-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 MLX90809LXG-EAD-100-SP?
For technical support, including MLX90809LXG-EAD-100-SP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90809LXG-EAD-100-SP requirements.
6.How does Aetrix verify that MLX90809LXG-EAD-100-SP is sourced from the original manufacturer or authorized distributors?
All MLX90809LXG-EAD-100-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 MLX90809LXG-EAD-100-SP meets industry standards.
7.What is the process for return or replacement of MLX90809LXG-EAD-100-SP?
All MLX90809LXG-EAD-100-SP units undergo pre-shipment inspection (PSI). If there is an issue with MLX90809LXG-EAD-100-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 MLX90809LXG-EAD-100-SP part is unused and in its original packaging.
Return procedure for MLX90809LXG-EAD-100-SP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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