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NXP Semiconductors MPXH6400A6U
- Part No.:
- MPXH6400A6U
- Manufacturer:
- NXP Semiconductors
- Category:
- Pressure Sensors, Transducers
- Package:
- 8-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
MPXH6400A6U.pdf
- Description:
- SENSOR 58.02PSIA 4.8V 8SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,502
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Product details
Overview
MPXH6400A6U from NXP is an absolute pressure sensor with 20–400 kPa range, integrated temperature compensation, and ratiometric analog output (0.2–4.8 V at 5 V supply). It delivers ±1.5% full-scale accuracy over 0–85 °C, features fluorosilicone gel isolation for media resistance, and is designed for automotive fuel systems and green gas engine monitoring.
For engineers reviewing the MPXH6400A6U datasheet, MPXH6400A6U pinout, MPXH6400A6U application, or MPXH6400A6U equivalent, key selection criteria include absolute pressure sensing capability, on-chip temperature compensation to +125 °C, super small outline package (98ARH99089A), and compatibility with microcontroller ADC interfaces requiring stable 5 V excitation.
Technical Context
The MPXH6400A6U integrates a piezoresistive silicon diaphragm with bipolar op-amp signal conditioning and thin-film resistor networks. Its monolithic construction enables high-level analog output directly proportional to applied absolute pressure, eliminating external amplification in most embedded systems.
On-chip temperature compensation operates across –40 °C to +125 °C, with calibrated offset and full-scale span stability. The device uses a sealed vacuum reference cavity and fluorosilicone gel encapsulation to isolate die and wire bonds while transmitting pressure-optimized for dry air but qualified for LPG/CNG media with proper mounting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Pressure Range | 20–400 kPa absolute; supports engine manifold and alternative fuel tank monitoring without external scaling. |
| Output Voltage | 0.133–4.866 V at 5 V supply; ratiometric response ensures immunity to supply drift in noisy automotive environments. |
| Accuracy | ±1.5% of full-scale span (VFSS) over 0–85 °C; includes linearity, hysteresis, and temperature coefficient errors. |
| Sensitivity | 12.1 mV/kPa typical; enables direct interface with 12-bit ADCs (e.g., 1 LSB ≈ 1.2 kPa at 3.3 V reference). |
| Response Time | 1.0 ms (10–90%); suitable for real-time combustion cycle feedback in internal combustion engines. |
| Operating Temp | –40 °C to +125 °C; validated for under-hood placement in gasoline and LPG-powered vehicles. |
| Supply Current | 6.0–10 mA at 5 V; low enough for continuous operation in battery-backed ECU modules. |
Pinout & Package
MPXH6400A6U uses the Super Small Outline Package (SSOP), case 98ARH99089A - a surface-mount thermoplastic housing with media-resistant fluorosilicone gel encapsulation and chamfered corner for pin 1 identification.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | DNC | Internal connection; must remain unconnected per datasheet to avoid performance degradation. |
| 2 | VS | 5 V DC excitation input; ratiometric operation requires stable 4.64–5.36 V supply for specified accuracy. |
| 3 | GND | Analog ground reference; must be tied to clean system ground with minimal impedance path. |
| 4 | VOUT | Analog output (0.133–4.866 V); connects directly to MCU ADC with optional RC filtering (e.g., 47 pF + 51 kΩ). |
| 5–8 | DNC | Internal device connections; no external connection permitted per design specification. |
Key Features
| Feature | Design Value |
|---|---|
| Fully calibrated & compensated | Factory-trimmed offset, span, and temperature coefficients eliminate need for system-level calibration in production. |
| Media-resistant packaging | Fluorosilicone gel isolates die from LPG, CNG, and other aggressive gases while maintaining pressure coupling integrity. |
| High reliability at elevated temp | Validated operation up to +125 °C ambient with <±0.25% VFSS offset stability after 1000 pressure/temperature cycles. |
| Small footprint SSOP | Case 98ARH99089A measures 3.81 mm × 4.95 mm × 1.27 mm; enables dense placement in compact engine control units. |
Applications
| Fuel-Injected Gasoline Engine Monitoring | Liquefied Petroleum Gas (LPG) Vehicle Systems |
|---|---|
Use Scenario: Real-time intake manifold pressure measurement for closed-loop air-fuel ratio control in port fuel injection systems. IC Role / Device Role / Timing Role: Absolute pressure transducer providing primary load signal to ECU; replaces legacy MAP sensors with higher accuracy and thermal stability. Use Value: ±1.5% VFSS accuracy and 1 ms response enable precise torque estimation and transient fuel correction during rapid throttle changes. | Use Scenario: Tank pressure and vapor pressure monitoring in bi-fuel LPG conversion kits for passenger vehicles. IC Role / Device Role / Timing Role: Media-isolated absolute pressure sensor interfaced to vehicle body control module for safety-critical fuel system diagnostics. Use Value: Fluorosilicone gel encapsulation prevents hydrocarbon-induced drift, ensuring long-term reliability in LPG exposure per NXP qualification testing. |
| Compressed Natural Gas (CNG) Engine Control | Industrial Process Pressure Feedback |
Use Scenario: Regulated cylinder head pressure sensing in spark-ignited CNG engines operating at up to 200 bar storage pressure. IC Role / Device Role / Timing Role: High-stability absolute pressure input for ignition timing and knock detection algorithms in dual-fuel powertrain controllers. Use Value: –40 °C to +125 °C operating range and ±0.25% VFSS offset stability support reliable operation in extreme ambient conditions encountered in fleet vehicles. | Use Scenario: Low-range pressure feedback in pneumatic actuators and HVAC refrigerant monitoring systems. IC Role / Device Role / Timing Role: Analog front-end sensor delivering linear, temperature-compensated voltage output to PLC analog input modules. Use Value: Ratiometric output and 12.1 mV/kPa sensitivity simplify signal conditioning, reducing BOM cost versus discrete amplifier solutions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar absolute pressure sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPXHZ6400A6T1 | Same die, identical electrical specs, but packaged in case 98ARH99066A (smaller footprint, different leadframe geometry). | Requires updated PCB footprint; not interchangeable without layout revision. | Select when board space is constrained and rework of land pattern is acceptable. |
| MPXH6400AC6U | Identical specifications and package (98ARH99089A); differs only in shipping format (rail vs. tape-and-reel) and marking (no 'C' suffix in part number). | No functional or mechanical difference; compatible in same PCB design. | Choose for prototyping or low-volume builds where rail packaging simplifies manual assembly. |
Compared with MPXH6400A6U, MPXHZ6400A6T1 offers identical performance in a physically smaller package requiring PCB redesign, while MPXH6400AC6U provides drop-in mechanical and electrical compatibility with alternate logistics handling-making it ideal for evaluation and pilot runs.
Availability
MPXH6400A6U is available at Aetrix Electronics and suitable for fuel-injected gasoline engines, LPG/CNG vehicle systems, and industrial process controls requiring stable component supply with full traceability and lifecycle management.
Supply support for MPXH6400A6U 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
NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT applications.
The MPXH6400A6U belongs to NXP's MPXxx6400A series of monolithic, signal-conditioned silicon pressure sensors-designed specifically for high-reliability, media-resistant absolute pressure measurement in harsh automotive and alternative-fuel environments.
FAQ
What is the pressure media compatibility of the MPXH6400A6U?
The MPXH6400A6U is qualified for use with dry air per NXP's reliability testing. Its fluorosilicone gel encapsulation provides compatibility with liquefied petroleum gas (LPG) and compressed natural gas (CNG), as confirmed in NXP application documentation for green-fuel vehicle systems. For other media-including oils, solvents, or corrosive gases-direct consultation with NXP factory support is required before deployment.
Does the MPXH6400A6U require external calibration?
No, the MPXH6400A6U is fully calibrated and temperature-compensated at the factory. Offset, full-scale span, and temperature coefficients are trimmed on-chip using laser trimming of thin-film resistors. System-level calibration is unnecessary for applications operating within the specified 0–85 °C temperature range and 20–400 kPa pressure range.
What is the meaning of "DNC" pins on the MPXH6400A6U?
Pins 1 and 5–8 on the MPXH6400A6U are labeled DNC (Do Not Connect). These are internal device connections-not test points or unused bond wires-and must remain unconnected to any external circuitry or ground. Connecting them risks degrading accuracy, increasing noise, or causing permanent damage per NXP datasheet Section 1.2.
Can the MPXH6400A6U operate from a 3.3 V supply?
No-the MPXH6400A6U is specified only for 4.64–5.36 V DC supply (VS). Operation below 4.64 V violates maximum ratings and results in undefined output behavior, reduced accuracy, and potential failure to meet ±1.5% VFSS specification. For 3.3 V systems, a dedicated 5 V LDO or charge pump is required to power the MPXH6400A6U.
How does the ratiometric output of the MPXH6400A6U improve system accuracy?
The MPXH6400A6U's output voltage scales linearly with supply voltage (VS), making it ratiometric. When both VS and the ADC reference voltage derive from the same regulated source, supply fluctuations cancel out-eliminating a major error source. This allows MPXH6400A6U-based systems to achieve consistent pressure resolution without precision voltage references or post-processing compensation.
MPXH6400A6U Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- MPXH6400A
- Package/Case:
- 8-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Applications:
- Board Mount
- Pressure Type:
- Absolute
- Operating Pressure:
- 2.9PSI ~ 58.02PSI (20kPa ~ 400kPa)
- Output Type:
- Analog Voltage
- Output:
- 0.2 V ~ 4.8 V
- Accuracy:
- ±1.5%
- Voltage - Supply:
- 4.64V ~ 5.36V
- Port Size:
- -
- Port Style:
- No Port
- Features:
- Temperature Compensated
- Termination Style:
- Gull Wing
- Maximum Pressure:
- 232.06PSI (1600kPa)
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SSOP
MPXH6400A6U FAQ
1.How can I place an order for MPXH6400A6U through Aetrix?
Please submit a Request for Quotation (RFQ) for MPXH6400A6U 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 MPXH6400A6U reliable?
The price and inventory of MPXH6400A6U are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPXH6400A6U is usually 5 days.
3.What payment methods are accepted for MPXH6400A6U?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPXH6400A6U transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPXH6400A6U?
MPXH6400A6U orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPXH6400A6U 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 MPXH6400A6U?
For technical support, including MPXH6400A6U datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPXH6400A6U requirements.
6.How does Aetrix verify that MPXH6400A6U is sourced from the original manufacturer or authorized distributors?
All MPXH6400A6U 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 MPXH6400A6U meets industry standards.
7.What is the process for return or replacement of MPXH6400A6U?
All MPXH6400A6U units undergo pre-shipment inspection (PSI). If there is an issue with MPXH6400A6U, 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 MPXH6400A6U part is unused and in its original packaging.
Return procedure for MPXH6400A6U:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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