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Melexis Technologies NV MLX90823GXP-BAD-308-RE
- Part No.:
- MLX90823GXP-BAD-308-RE
- Manufacturer:
- Melexis Technologies NV
- Category:
- Pressure Sensors, Transducers
- Package:
- 4-SIP Module
- Datasheet:
-
MLX90823GXP-BAD-308-RE.pdf
- Description:
- 0 TO 1.0BAR?RELATIVE PRESSURE /
- Quantity:
- Payment:
- Shipping:
Inventory:1,849
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Product details
Overview
MLX90823GXP-BAD-308-RE from Melexis is a PCB-less, factory-calibrated relative pressure sensor with analog output, designed for 0 to 1.0 bar pressure range, ±0.5% full-scale lifetime accuracy, ratiometric 0.5–4.5 V output, and operation from −40°C to +160°C. It integrates MEMS, interface IC, and passive components in an SMP7 package and is qualified to AEC-Q100 and AEC-Q103-002 for automotive crankcase ventilation and fuel vapor pressure monitoring.
For engineers reviewing the MLX90823GXP-BAD-308-RE datasheet, pinout, applications, or equivalent options, this page delivers verified technical context, calibrated transfer curve parameters, diagnostic configuration options, ASIL-A SEooC compliance status, and real-world integration guidance for harsh-media automotive sensing.
Technical Context
The MLX90823GXP-BAD-308-RE implements a DSP-based signal chain with integrated Wheatstone bridge MEMS diaphragm, analog front-end filtering, 16-bit microcontroller-based temperature compensation (up to third-order offset/gain), and programmable linearization. Its internal diagnostics include configurable over/under-voltage detection (default 5.7 V / 4.3 V) and broken-connection fault signaling via rail clamping.
This variant uses G-temperature-code calibration (Figure 7), delivering ±5 mBar typical pressure accuracy across −40°C to +160°C, with default transfer curve P₁ = 0 bar, P₂ = 1.0 bar, O₁ = 0.5 V, O₂ = 4.5 V, LCL = 0.3 V, HCL = 4.7 V, and fast 0.4 ms response time from pressure step to 90% settled output.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Pressure Range | 0 to 1.0 bar relative - calibrated span for positive-pressure applications like filter monitoring and crankcase ventilation. |
| Output Signal | Ratiometric analog 0.5–4.5 V - scales with supply voltage; enables stable measurement without external reference. |
| Accuracy | ±0.5% FS lifetime - includes long-term drift and thermal effects; validated per AEC-Q103-002. |
| Response Time | 0.4 ms (min) - supports high-dynamic pressure transients in engine management systems. |
| Operating Temp | −40°C to +160°C - rated for under-hood environments; short-duration extension to +170°C permitted. |
| Supply Voltage | 4.5–5.5 V nominal - with ±40 V over/under-voltage protection on VDD and output pins. |
| EMC Compliance | Validated per leading OEM EMC standards - no external filtering required due to integrated 100 nF output capacitor and optimized package layout. |
Pinout & Package
SMP7 package: 7-pin, PCB-less molded module with ridges for glued pressure seal; bottom-side gel interface for pressure sensing; top-side electrical connections. Two GND pins (1 and 3) are functionally identical; only one must be connected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Ground (GND) | Primary ground connection; electrically identical to Pin 3; either may serve as system return path. |
| 2 | Analog Output | Ratiometric voltage output (0.5–4.5 V); internally clamped to 0.3–4.7 V; fault states drive to 0 V or 5 V. |
| 3 | Ground (GND) | Redundant ground terminal; optional connection; improves noise immunity if used with low-inductance layout. |
| 4 | Supply Input (VDD) | Nominal 5 V input with ±40 V transient tolerance; includes POR, UVLO (4.3 V default), and OVLO (5.7 V default). |
| 5–7 | Test Pins | Factory programming and test access only; not intended for end-user connection or functional use. |
Key Features
| Feature | Design Value |
|---|---|
| PCB-less Integrated Package | Eliminates board-level assembly; ridged housing enables direct glue-seal mounting onto pressure ports-reducing BOM count and leak paths. |
| Factory-Calibrated Transfer Curve | Pre-programmed P₁=0 bar / P₂=1.0 bar, O₁=0.5 V / O₂=4.5 V with EEPROM-stored compensation coefficients for offset, gain, and linearity. |
| Configurable Diagnostics | EEPROM-programmable fault reporting (e.g., UV/OV, broken connection, membrane failure) with selectable Low/High Fault Band output behavior. |
| Harsh Media Resistance | Validated against halogens and acids per OEM requirements-enables direct exposure in fuel vapor and crankcase gas environments. |
| ASIL-A SEooC Development | Developed per ISO 26262 Part 6 as a Safety Element out of Context-provides documented safety evidence for integration into ASIL-B/C systems. |
Applications
| Fuel Vapor Pressure Monitoring | Crankcase Ventilation (PCV) Sensing |
|---|---|
Use Scenario: Real-time measurement of evaporative emissions system pressure during refueling and purge cycles in gasoline powertrains. IC Role / Device Role / Timing Role: Relative pressure sensor detecting differential pressure between fuel tank and atmosphere to validate EVAP integrity. Use Value: Enables OBD-II compliance with ±5 mBar accuracy at 160°C ambient; ratiometric output rejects supply variation common in battery-fed modules. | Use Scenario: Continuous monitoring of crankcase pressure buildup during engine operation to detect blow-by and oil separator efficiency. IC Role / Device Role / Timing Role: Analog-output relative pressure transducer measuring pressure difference between crankcase and intake manifold. Use Value: Supports predictive maintenance via 0.4 ms response time and AEC-Q103-002 qualification for oil-contaminated, high-temperature under-hood placement. |
| Engine Air Filter Monitoring | Brake Booster Vacuum Sensing |
Use Scenario: Detection of increasing pressure drop across air intake filters to trigger service alerts before airflow restriction impacts combustion efficiency. IC Role / Device Role / Timing Role: Differential pressure sensor comparing upstream and downstream filter pressure to calculate delta-P. Use Value: Leverages 0–1.0 bar calibrated range and ±0.5% FS accuracy to resolve <10 mbar changes over life-critical for extended-interval filter strategies. | Use Scenario: Monitoring vacuum level in brake booster reservoirs to ensure sufficient assist pressure during active braking events. IC Role / Device Role / Timing Role: Absolute-referenced relative pressure sensor measuring vacuum relative to atmospheric pressure at booster inlet. Use Value: Uses SMP7's gel-sealed construction and −40°C to +160°C rating to survive under-hood thermal cycling while maintaining rail-to-rail fault signaling for fail-safe diagnostics. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar relative pressure sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MLX90823GXP-BAD-301-RE | Calibrated for −0.2 to +0.5 bar range; same SMP7 package, accuracy, and diagnostics. | Designed for bidirectional pressure applications (e.g., turbocharger boost/vacuum) rather than unidirectional 0–1.0 bar. | Select when bidirectional measurement or negative pressure capability is required; otherwise, BAD-308 offers optimal span utilization for positive-only ranges. |
| MLX90823GXP-BAD-306-RE | Calibrated for 0 to −1.0 bar range; identical electrical specs and package but inverted pressure polarity. | Targeted at vacuum-sensing applications such as HVAC refrigerant monitoring or vacuum pump control-not suitable for positive-pressure use cases. | Choose only for dedicated vacuum measurement; BAD-308 provides correct polarity and full-scale utilization for 0–1.0 bar positive pressure systems. |
Compared with MLX90823GXP-BAD-301-RE and MLX90823GXP-BAD-306-RE, the MLX90823GXP-BAD-308-RE delivers optimal signal-to-noise ratio and resolution across its intended 0–1.0 bar span, avoids range compression in unidirectional applications, and eliminates polarity inversion risks in positive-pressure feedback loops.
Availability
MLX90823GXP-BAD-308-RE is available at Aetrix Electronics and suitable for automotive crankcase ventilation, fuel vapor pressure monitoring, and engine air filter monitoring requiring stable component supply, AEC qualification, and long-life calibration integrity.
Supply support for MLX90823GXP-BAD-308-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 core expertise in mixed-signal ASIC design and MEMS integration.
The MLX90823 product line delivers fully packaged, calibrated relative pressure sensors targeting harsh-environment automotive applications-including EVAP, PCV, and filter monitoring-where PCB-less integration, ASIL-compliant development, and OEM EMC validation are mandatory.
FAQ
What pressure range is calibrated for MLX90823GXP-BAD-308-RE?
The MLX90823GXP-BAD-308-RE is factory calibrated for a 0 to 1.0 bar relative pressure range, with corresponding analog output spanning 0.5 V to 4.5 V at nominal 5 V supply. This span is optimized for unidirectional positive-pressure applications such as crankcase ventilation and air filter monitoring, and is distinct from other variants like BAD-301 (−0.2 to +0.5 bar) or BAD-306 (0 to −1.0 bar).
Does MLX90823GXP-BAD-308-RE require external capacitors for stable operation?
No, the MLX90823GXP-BAD-308-RE integrates all required passive components-including a 100 nF output capacitor-within its SMP7 package. The datasheet explicitly states "no additional capacitor needed" for the output, and the internal C1 (47 nF), C2 (100 nF), and C3 (100 nF) configuration eliminates external filtering requirements, simplifying layout and improving EMC robustness.
How is diagnostic fault signaling implemented in MLX90823GXP-BAD-308-RE?
The MLX90823GXP-BAD-308-RE signals faults by driving its analog output beyond the normal 0.5–4.5 V range: Low Fault Band (0–3% VDD ≈ 0–0.15 V) indicates issues like broken ground or internal regulator failure, while Upper Fault Band (97–100% VDD ≈ 4.85–5.0 V) flags overvoltage or membrane rupture. These thresholds are configurable via EEPROM using the PTC04 tool.
Is MLX90823GXP-BAD-308-RE qualified for automotive use?
Yes, the MLX90823GXP-BAD-308-RE is qualified to AEC-Q100 (Grade 0) and AEC-Q103-002 for pressure sensors, operates from −40°C to +160°C (with 170°C short-duration allowance), and is developed as an ASIL-A Safety Element out of Context per ISO 26262. It also meets leading OEM EMC standards without external components.
Can MLX90823GXP-BAD-308-RE be reprogrammed after deployment?
Yes, the MLX90823GXP-BAD-308-RE supports field reprogramming of calibration curves, diagnostic thresholds, and linearization parameters via its dedicated programming interface using the Melexis PTC04 tool. All settings-including offset, gain, and linearity compensation coefficients-are stored in on-chip EEPROM and retain configuration across power cycles.
MLX90823GXP-BAD-308-RE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Melexis Technologies NV
- Series:
- -
- Package/Case:
- 4-SIP Module
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- Board Mount
- Pressure Type:
- -
- Operating Pressure:
- 15PSI (103.42kPa)
- Output Type:
- Analog Voltage
- Output:
- 0.5 V ~ 4.5 V
- Accuracy:
- ±0.5%
- Voltage - Supply:
- 4.5V ~ 5.5V
- Port Size:
- -
- Port Style:
- No Port
- Features:
- Temperature Compensated
- Termination Style:
- -
- Maximum Pressure:
- 72.52PSI (500kPa)
- Operating Temperature:
- -40°C ~ 160°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- SMP-7
MLX90823GXP-BAD-308-RE FAQ
1.How can I place an order for MLX90823GXP-BAD-308-RE through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90823GXP-BAD-308-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 MLX90823GXP-BAD-308-RE reliable?
The price and inventory of MLX90823GXP-BAD-308-RE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MLX90823GXP-BAD-308-RE is usually 5 days.
3.What payment methods are accepted for MLX90823GXP-BAD-308-RE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90823GXP-BAD-308-RE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90823GXP-BAD-308-RE?
MLX90823GXP-BAD-308-RE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90823GXP-BAD-308-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 MLX90823GXP-BAD-308-RE?
For technical support, including MLX90823GXP-BAD-308-RE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90823GXP-BAD-308-RE requirements.
6.How does Aetrix verify that MLX90823GXP-BAD-308-RE is sourced from the original manufacturer or authorized distributors?
All MLX90823GXP-BAD-308-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 MLX90823GXP-BAD-308-RE meets industry standards.
7.What is the process for return or replacement of MLX90823GXP-BAD-308-RE?
All MLX90823GXP-BAD-308-RE units undergo pre-shipment inspection (PSI). If there is an issue with MLX90823GXP-BAD-308-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 MLX90823GXP-BAD-308-RE part is unused and in its original packaging.
Return procedure for MLX90823GXP-BAD-308-RE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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