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NXP Semiconductors MPXH6250AC6U
- Part No.:
- MPXH6250AC6U
- Manufacturer:
- NXP Semiconductors
- Category:
- Pressure Sensors, Transducers
- Package:
- 8-SOIC (0.335", 8.50mm Width), Top Port
- Datasheet:
-
MPXH6250AC6U.pdf
- Description:
- SENSOR 36.26PSIA 0.13" 4.9V SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,412
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Product details
Overview
MPXH6250AC6U from Freescale Semiconductor is an absolute pressure sensor IC with 20–250 kPa range, ratiometric analog output (0.204–4.896 V at 5.1 V supply), ±1.5% full-scale span accuracy over 0 °C to 85 °C, and on-chip temperature compensation from –40 °C to +125 °C. It serves as a primary manifold absolute pressure (MAP) sensor in fuel-injected automotive engines using LPG/CNG.
For engineers reviewing the MPXH6250AC6U datasheet, MPXH6250AC6U pinout, MPXH6250AC6U application, or MPXH6250AC6U equivalent, this page delivers verified electrical specs, validated 8-pin SSOP pin functions, real-world automotive and industrial use cases, and two confirmed alternative sensors with documented functional and packaging differences.
Technical Context
The MPXH6250AC6U integrates a piezoresistive silicon diaphragm, thin-film resistor networks, and bipolar op-amp signal conditioning on a single monolithic die. Its sealed vacuum reference enables absolute pressure measurement, and fluorosilicone gel encapsulation isolates the die while transmitting pressure.
It operates ratiometrically with 4.74–5.46 V supply, delivers 20.4 mV/kPa sensitivity, achieves 1.0 ms response time (10–90%), and maintains ±0.25%VFSS offset stability after 1000-hour pulsed pressure/temperature cycling - all without external calibration components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Pressure Range | 20–250 kPa absolute; matches intake manifold vacuum-to-boost range in small-displacement gasoline and autogas engines. |
| Output Voltage Range | 0.204–4.896 V at VS = 5.1 V; directly interfaces with 5 V ADCs without level-shifting or amplification. |
| Accuracy | ±1.5% of full-scale span (VFSS); includes linearity, temperature hysteresis, pressure hysteresis, TcSpan, and TcOffset errors across 0–85 °C. |
| Supply Voltage | 4.74–5.46 V DC; ratiometric operation ensures output scaling tracks supply variations, simplifying power rail design. |
| Response Time | 1.0 ms (10–90%); supports real-time closed-loop air-fuel ratio control in engine management systems. |
| Operating Temperature | –40 °C to +125 °C; qualified for under-hood automotive environments with full on-chip temperature compensation. |
| Package | Case 98ARH99089A, 8-pin super small outline package (SSOP); surface-mount compatible with standard reflow profiles. |
Pinout & Package
MPXH6250AC6U uses the Case 98ARH99089A 8-pin SSOP package with chamfered corner marking Pin 1. Pins 1, 5, 6, 7, and 8 are internal connections and must remain unconnected. Only three pins are externally active: VS (supply), GND (ground), and VOUT (ratiometric analog output).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | DNC | Do not connect; marked by chamfered corner; internal device connection only. |
| Pin 2 | VS | Voltage supply input (4.74–5.46 V); powers internal op-amps, compensation circuitry, and sensing element. |
| Pin 3 | GND | Analog ground reference; must be low-impedance and separated from digital ground to minimize noise coupling. |
| Pin 4 | VOUT | Analog output voltage (0.204–4.896 V); ratiometric to VS; connects directly to MCU ADC input. |
| Pins 5–8 | DNC | All unconnected; internal device connections; floating or grounded traces will degrade accuracy and reliability. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip temperature compensation | Validated from –40 °C to +125 °C; eliminates need for external thermistors or software lookup tables in engine control units. |
| Fluorosilicone gel isolation | Enables direct mounting to LPG/CNG fuel lines or remote sensing tubes while protecting wire bonds and die from moisture and chemical exposure. |
| Ratiometric output | Output scales linearly with supply voltage; allows shared 5 V rail with microcontroller and ADC without gain error accumulation. |
| High sensitivity (20.4 mV/kPa) | Delivers >4.6 V full-scale span at 5.1 V supply; maximizes ADC resolution and signal-to-noise ratio in 10–12 bit systems. |
| Sealed vacuum reference | Provides true absolute pressure measurement referenced to hard vacuum; essential for barometric correction and altitude-compensated fuel mapping. |
Applications
| Fuel-Injected Gasoline Engine | Liquefied Petroleum Gas (LPG) Vehicle |
|---|---|
|
Use Scenario: Real-time manifold pressure monitoring during transient throttle events in 1.0–2.0 L port-fuel-injected engines. IC Role / Device Role / Timing Role: Primary MAP sensor providing absolute pressure input to ECU for air mass calculation and fuel pulse width determination. Use Value: ±1.5%VFSS accuracy and 1.0 ms response enable precise stoichiometric AFR control across –40 °C to +125 °C ambient conditions. |
Use Scenario: Pressure feedback for vaporizer control and safety cutoff in bi-fuel autogas vehicles operating on propane-butane blends. IC Role / Device Role / Timing Role: Absolute pressure transducer mounted on LPG liquid line via tube porting to isolate electronics from fuel media. Use Value: Fluorosilicone gel encapsulation and media-resistant PPS package ensure long-term reliability with hydrocarbon exposure. |
| Small Engine Control | Industrial Vacuum Monitoring |
|
Use Scenario: Load estimation and ignition timing adjustment in 20–50 hp commercial generators and agricultural equipment engines. IC Role / Device Role / Timing Role: Analog pressure interface feeding 12-bit SAR ADC in cost-optimized 32-bit microcontrollers (e.g., NXP S32K1xx). Use Value: Ratiometric 0.204–4.896 V output eliminates need for precision voltage references or gain calibration in BOM-constrained designs. |
Use Scenario: Continuous vacuum level supervision in semiconductor process chambers and HVAC refrigerant recovery systems. IC Role / Device Role / Timing Role: Absolute pressure sensor with sealed vacuum reference delivering stable baseline for leak detection algorithms. Use Value: ±0.25%VFSS offset stability after 1000-hour stress testing ensures consistent threshold triggering over multi-year deployments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar absolute pressure sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPXH6250A6U | Same die, identical electrical specs, but packaged in Case 98ARH99066A (different SSOP footprint and lead pitch). | Requires PCB redesign due to distinct pad layout and thermal pad configuration; not drop-in compatible. | Select MPXH6250A6U only when legacy board layout or existing stencil supports Case 98ARH99066A. |
| MPXHZ6250AC6U | Includes media-resistant fluorosilicone gel optimized for aggressive fluids; otherwise identical pressure range, output, and accuracy. | Better suited for direct LPG/CNG liquid-line mounting where chemical compatibility is critical. | Choose MPXHZ6250AC6U when exposed to hydrocarbons or high-humidity environments; MPXH6250AC6U suffices for dry-air or vapor-phase applications. |
Compared with MPXH6250A6U, MPXH6250AC6U offers mechanical interchangeability only within its specific Case 98ARH99089A footprint, while MPXHZ6250AC6U adds validated chemical resistance without sacrificing accuracy or response - making it the preferred upgrade path for harsh-media automotive deployments.
Availability
MPXH6250AC6U is available at Aetrix Electronics and suitable for fuel-injected gasoline engines, LPG/CNG vehicle control systems, and industrial vacuum monitoring requiring stable component supply, long-lifecycle support, and traceable sourcing.
Supply support for MPXH6250AC6U 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
Freescale Semiconductor (now part of NXP Semiconductors) is a global leader in automotive and industrial microcontrollers, analog sensors, and power management ICs, with deep expertise in embedded system integration.
The MPXH6250AC6U belongs to Freescale's MAP sensor product line, engineered specifically for high-reliability, cost-sensitive engine management and alternative-fuel vehicle applications demanding integrated signal conditioning and wide-temperature operation.
FAQ
What is the pressure reference type of the MPXH6250AC6U?
The MPXH6250AC6U is an absolute pressure sensor with a sealed vacuum reference cavity. Its output voltage corresponds to pressure relative to absolute zero (hard vacuum), not ambient atmospheric pressure. This makes MPXH6250AC6U ideal for engine manifold absolute pressure (MAP) measurement where barometric correction and altitude compensation are required in the ECU.
Does the MPXH6250AC6U require external calibration or trimming components?
No, the MPXH6250AC6U requires no external calibration components. It integrates on-chip thin-film resistor networks for temperature compensation and bipolar op-amp circuitry for signal conditioning. All calibration is factory-performed and stored in passive elements on-die, enabling plug-and-play operation with only VS, GND, and VOUT connections needed in the application circuit.
What is the maximum rated pressure the MPXH6250AC6U can withstand without damage?
The MPXH6250AC6U has a maximum pressure rating of 1000 kPa (145 psi), as specified in its absolute maximum ratings table. Exceeding this pressure may cause permanent mechanical deformation of the silicon diaphragm or degradation of internal circuitry. The sensor's operational range remains limited to 20–250 kPa, and output saturates outside this band.
Can the MPXH6250AC6U be used with a 3.3 V microcontroller ADC?
Yes, but only if the MPXH6250AC6U is powered from a 5 V supply (within 4.74–5.46 V). Its output is ratiometric: VOUT = VS × (0.004 × P − 0.040). With VS = 5.1 V, VOUT spans 0.204–4.896 V - exceeding 3.3 V. To interface safely with a 3.3 V ADC, add a resistive voltage divider or buffer amplifier; do not reduce VS below 4.74 V, as that violates specification.
Is the MPXH6250AC6U RoHS compliant and halogen-free?
Yes, the MPXH6250AC6U meets RoHS Directive 2011/65/EU requirements and is halogen-free per IEC 61249-2-21. Freescale's documentation confirms compliance for Case 98ARH99089A packaging, including lead-free solderability and absence of brominated flame retardants (BFRs), chlorinated flame retardants (CFRs), and antimony trioxide.
MPXH6250AC6U Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- MPXH6250A
- Package/Case:
- 8-SOIC (0.335", 8.50mm Width), Top Port
- Packaging:
- Tube
- Product Status:
- Obsolete
- Applications:
- Board Mount
- Pressure Type:
- Absolute
- Operating Pressure:
- 2.9PSI ~ 36.26PSI (20kPa ~ 250kPa)
- Output Type:
- Analog Voltage
- Output:
- 0.3 V ~ 4.9 V
- Accuracy:
- ±1.5%
- Voltage - Supply:
- 4.74V ~ 5.46V
- Port Size:
- Male - 0.13" (3.3mm) Tube
- Port Style:
- Barbless
- Features:
- Temperature Compensated
- Termination Style:
- Gull Wing
- Maximum Pressure:
- 145.04PSI (1000kPa)
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SSOP
MPXH6250AC6U FAQ
1.How can I place an order for MPXH6250AC6U through Aetrix?
Please submit a Request for Quotation (RFQ) for MPXH6250AC6U 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 MPXH6250AC6U reliable?
The price and inventory of MPXH6250AC6U are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPXH6250AC6U is usually 5 days.
3.What payment methods are accepted for MPXH6250AC6U?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPXH6250AC6U transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPXH6250AC6U?
MPXH6250AC6U orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPXH6250AC6U 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 MPXH6250AC6U?
For technical support, including MPXH6250AC6U datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPXH6250AC6U requirements.
6.How does Aetrix verify that MPXH6250AC6U is sourced from the original manufacturer or authorized distributors?
All MPXH6250AC6U 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 MPXH6250AC6U meets industry standards.
7.What is the process for return or replacement of MPXH6250AC6U?
All MPXH6250AC6U units undergo pre-shipment inspection (PSI). If there is an issue with MPXH6250AC6U, 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 MPXH6250AC6U part is unused and in its original packaging.
Return procedure for MPXH6250AC6U:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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