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Melexis Technologies NV MLX90823GXP-BAD-306-RE
- Part No.:
- MLX90823GXP-BAD-306-RE
- Manufacturer:
- Melexis Technologies NV
- Category:
- Pressure Sensors, Transducers
- Package:
- 4-SIP Module
- Datasheet:
-
MLX90823GXP-BAD-306-RE.pdf
- Description:
- 0 TO -1.0BAR?RELATIVE PRESSURE /
- Quantity:
- Payment:
- Shipping:
Inventory:1,012
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Product details
Overview
MLX90823GXP-BAD-306-RE from Melexis is a PCB-less, factory-calibrated relative pressure sensor with analog output, designed for automotive crankcase ventilation and vacuum monitoring. It delivers 0 to –1.0 bar pressure range, ±0.5% full-scale lifetime accuracy, ratiometric 0.5–4.5 V output, and operates from –40°C to 160°C.
For engineers reviewing the MLX90823GXP-BAD-306-RE datasheet, pinout, applications, or equivalent options, this page provides verified technical context, pin-level design meaning, ASIL-A-compliant diagnostics, and calibrated transfer curve details specific to the BAD-306 variant.
Technical Context
The MLX90823GXP-BAD-306-RE integrates a MEMS diaphragm, DSP-based interface IC, and three internal capacitors (C1 = 47 nF, C2 = C3 = 100 nF) in an SMP7 package. Its Wheatstone bridge transducer feeds an analog front-end with ADC conversion, followed by digital temperature compensation using third-order EEPROM-programmable offset/gain coefficients (O0–O3, G0–G3).
It implements configurable diagnostics including broken connection detection, over/under-voltage monitoring (default thresholds: 5.7 V OV / 4.3 V UV), and pressure fault bands. The analog output clamps at 0.3 V (LCL) and 4.7 V (HCL), with fault signaling via Lower Fault Band (0–3% VDD) or Upper Fault Band (97–100% VDD).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Pressure Range | 0 to –1.0 bar relative pressure - calibrated for vacuum-side measurement with atmospheric reference on bottom side. |
| Output Signal | 0.5–4.5 V ratiometric analog - linearly proportional to pressure and supply voltage; no external load resistor required. |
| Accuracy | ±0.5% FS lifetime accuracy - includes thermal drift compensation per Figure 7 (G temperature code, Fe = 1.5). |
| Response Time | 1 ms default / 0.4 ms fastest - time from pressure step to 90% settled output; programmable via EEPROM. |
| Supply Voltage | 4.5–5.5 V nominal - supports extended overvoltage (40 V, ≤2 h) and reverse voltage (–40 V) protection. |
| Operating Temp | –40°C to 160°C continuous - qualified per AEC-Q100 Grade 0 and AEC-Q103-002 for harsh under-hood use. |
| Diagnostics | Configurable internal diagnostics (OV/UV/pressure faults) + mandatory broken-connection detection - outputs fault bands outside 4–96% VDD range. |
Pinout & Package
SMP7 package: 7-pin, PCB-less, gel-sealed pressure interface with ridges for adhesive mounting. Dual GND pins (1 & 3) allow flexible layout; only one must be connected. Pins 5–7 are test-only and not used in application.
| 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 | Active ratiometric voltage output (0.5–4.5 V); internally buffered; drives up to 2 mA into 3–470 kΩ load. |
| 3 | Ground (GND) | Redundant ground terminal; optional connection; improves noise immunity if both GND pins are used. |
| 4 | Supply Input (VDD) | Power input (4.5–5.5 V); integrated reverse/overvoltage protection enables robust ECU integration. |
| 5–7 | Test Pins | Factory programming and test access only; must remain unconnected in end application. |
Key Features
| Feature | Design Value |
|---|---|
| ASIL-A SEooC Development | Developed per ISO 26262 as Safety Element out of Context - enables reuse in ASIL-B/C systems with proper integration validation. |
| Harsh Media Resistance | Validated resistance to halogens and acids - enables direct exposure in crankcase vapor and fuel vapor environments without coating. |
| Integrated Passive Components | Includes 47 nF (C1) and two 100 nF (C2, C3) capacitors - eliminates external filtering components and ensures EMC compliance per OEM standards. |
| Programmable Transfer Curve | EEPROM-stored calibration coefficients (O0–O3, G0–G3, L0–L1) enable custom linearization and temperature compensation for BAD-306's 0 to –1.0 bar range. |
| Glue-Compatible Mechanical Design | Ridged SMP7 housing enables reliable adhesive sealing against pressure ports - eliminates need for gaskets or solder-mounting fixtures. |
Applications
| Crankcase Ventilation Monitoring | Fuel Vapor Pressure Sensing |
|---|---|
|
Use Scenario: Real-time detection of abnormal crankcase pressure buildup in turbocharged gasoline engines to prevent oil leaks and PCV valve failure. IC Role / Device Role / Timing Role: Relative pressure sensor measuring vacuum (0 to –1.0 bar) referenced to ambient air; outputs analog signal to ECU for closed-loop PCV control. Use Value: Enables early fault detection using MLX90823GXP-BAD-306-RE's ±5 mBar pressure accuracy and 0.4 ms response time under transient engine conditions. |
Use Scenario: Monitoring evaporative emissions system integrity by detecting pressure decay during EVAP leak tests in OBD-II compliant vehicles. IC Role / Device Role / Timing Role: Vacuum pressure transducer interfacing with charcoal canister and purge valve; supplies calibrated analog feedback to powertrain controller. Use Value: Delivers stable 0.5–4.5 V output across –40°C to 160°C, meeting SAE J1978 requirements for EVAP test repeatability without external conditioning. |
| Brake Booster Vacuum Sensing | Exhaust Gas Recirculation (EGR) Differential Pressure |
|
Use Scenario: Verifying sufficient vacuum reserve in hydraulic brake boosters for ADAS emergency braking functions in hybrid/electric vehicles. IC Role / Device Role / Timing Role: Absolute-referenced vacuum sensor (0 to –1.0 bar) mounted on booster manifold; provides fail-safe analog signal to brake control module. Use Value: Leverages MLX90823GXP-BAD-306-RE's AEC-Q100 qualification and ASIL-A compliance to support functional safety requirements for brake assist systems. |
Use Scenario: Measuring differential pressure across EGR cooler or valve to infer flow rate and detect clogging in diesel aftertreatment systems. IC Role / Device Role / Timing Role: Relative pressure sensor with top-side gel seal exposed to exhaust gas; bottom side vented to atmosphere for ΔP measurement. Use Value: Uses MLX90823GXP-BAD-306-RE's harsh media resistance and 170°C short-duration rating to survive hot exhaust proximity without potting. |
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-308-RE | Same package, calibration, and accuracy; measures 0 to +1.0 bar (positive gauge) instead of 0 to –1.0 bar. | Used for boost pressure monitoring rather than vacuum; requires different ECU scaling and fault logic. | Select when measuring positive pressure spans; not interchangeable without firmware reconfiguration. |
| MPXV7025DP | Legacy Freescale analog sensor; 2.5–27.5 kPa range (0–0.275 bar), ±1.5% FS accuracy, no integrated diagnostics or ASIL support. | Lacks broken-wire detection, programmable diagnostics, and automotive qualification beyond AEC-Q100 Grade 2. | Consider only for non-safety-critical legacy designs; MLX90823GXP-BAD-306-RE offers superior accuracy, diagnostics, and temperature range. |
Compared with MLX90823GXP-BAD-308-RE, the MLX90823GXP-BAD-306-RE provides inverted pressure polarity optimized for vacuum; compared with MPXV7025DP, it adds ASIL-A development assurance, EEPROM programmability, and integrated EMC passives - reducing BOM count and validation effort in new automotive platforms.
Availability
MLX90823GXP-BAD-306-RE is available at Aetrix Electronics and suitable for crankcase ventilation monitoring, fuel vapor pressure sensing, and brake booster vacuum applications requiring stable component supply, long-term automotive qualification, and ASIL-A-ready design-in.
Supply support for MLX90823GXP-BAD-306-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 intelligent sensors and driver ICs for automotive and industrial markets, with core expertise in magnetic, infrared, and pressure sensing technologies.
The MLX90823 product line delivers fully integrated, PCB-less relative pressure sensors targeting automotive powertrain and chassis systems where high reliability, harsh-environment operation, and functional safety compliance are mandatory.
FAQ
What pressure range does the MLX90823GXP-BAD-306-RE measure?
The MLX90823GXP-BAD-306-RE is factory calibrated for a relative pressure range of 0 to –1.0 bar, meaning it measures vacuum referenced to atmospheric pressure on the bottom side of the package. This range is fixed per its BAD-306 option code and cannot be reconfigured to positive pressure spans without hardware replacement.
Is the MLX90823GXP-BAD-306-RE pin-compatible with other MLX90823 variants?
Yes, all MLX90823 variants-including MLX90823GXP-BAD-306-RE-share the identical SMP7 package and 7-pin pinout. Pin functions (GND, VDD, OUT, test pins) are consistent across variants; only calibration parameters and pressure range differ, making them mechanically and electrically interchangeable in PCB layout.
Does the MLX90823GXP-BAD-306-RE require external capacitors?
No, the MLX90823GXP-BAD-306-RE integrates all required passive components: a 47 nF capacitor (C1) and two 100 nF capacitors (C2, C3). These are embedded within the SMP7 package, eliminating the need for external filtering or decoupling capacitors in the application circuit.
How is diagnostic fault signaling implemented in the MLX90823GXP-BAD-306-RE?
The MLX90823GXP-BAD-306-RE signals faults by driving its analog output into defined fault bands: Lower Fault Band (0–3% VDD) for open-GND or internal errors, and Upper Fault Band (97–100% VDD) for overvoltage or open-VDD. These bands lie outside the normal 4–96% VDD operating range, enabling unambiguous ECU detection.
Can the MLX90823GXP-BAD-306-RE be programmed in-system?
Yes, the MLX90823GXP-BAD-306-RE supports in-system programming via its dedicated test pins using the Melexis PTC04 programming tool. This allows field calibration updates, EEPROM parameter adjustment (e.g., OV/UV thresholds), and custom transfer curve configuration without removing the device from the assembly.
MLX90823GXP-BAD-306-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:
- -1PSI (-6.89kPa)
- 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-306-RE FAQ
1.How can I place an order for MLX90823GXP-BAD-306-RE through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90823GXP-BAD-306-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-306-RE reliable?
The price and inventory of MLX90823GXP-BAD-306-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-306-RE is usually 5 days.
3.What payment methods are accepted for MLX90823GXP-BAD-306-RE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90823GXP-BAD-306-RE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90823GXP-BAD-306-RE?
MLX90823GXP-BAD-306-RE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90823GXP-BAD-306-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-306-RE?
For technical support, including MLX90823GXP-BAD-306-RE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90823GXP-BAD-306-RE requirements.
6.How does Aetrix verify that MLX90823GXP-BAD-306-RE is sourced from the original manufacturer or authorized distributors?
All MLX90823GXP-BAD-306-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-306-RE meets industry standards.
7.What is the process for return or replacement of MLX90823GXP-BAD-306-RE?
All MLX90823GXP-BAD-306-RE units undergo pre-shipment inspection (PSI). If there is an issue with MLX90823GXP-BAD-306-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-306-RE part is unused and in its original packaging.
Return procedure for MLX90823GXP-BAD-306-RE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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