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NXP Semiconductors MPX4250AP
- Part No.:
- MPX4250AP
- Manufacturer:
- NXP Semiconductors
- Category:
- Pressure Sensors, Transducers
- Package:
- 6-SIP Module
- Datasheet:
-
MPX4250AP.pdf
- Description:
- SENSOR 36.26PSIA 0.19" 4.9V
- Quantity:
- Payment:
- Shipping:
Inventory:4,088
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Product details
Overview
MPX4250AP from NXP Semiconductors is a manifold absolute pressure (MAP) sensor designed for engine intake air pressure sensing in automotive control systems. It delivers a ratiometric, temperature-compensated analog output (0.204–4.896 V) over a 20–250 kPa range with ±1.5 % full-scale accuracy from 0 °C to 85 °C, enabling precise fuel injection calculation in microcontroller-based powertrain ECUs.
For engineers reviewing the MPX4250AP datasheet, MPX4250AP pinout, MPX4250AP application, or MPX4250AP equivalent, key selection criteria include its unibody epoxy package (Case 867B-04), 3-pin active interface (VCC/GND/VOUT), on-chip signal conditioning, and compatibility with 5.1 V ±0.25 V supply and A/D input stages in embedded engine management systems.
Technical Context
The MPX4250AP integrates a monolithic silicon piezoresistive sensing element with thin-film metallization and bipolar signal conditioning circuitry. Its architecture includes two gain stages, on-chip temperature compensation across –40 °C to +125 °C, and a ground-reference shift circuit - all optimized for stable absolute pressure measurement under engine bay thermal cycling.
It operates as a ratiometric device: output voltage scales linearly with supply voltage (VOUT = VCC × (P × 0.004 – 0.04)), eliminating sensitivity drift due to VCC variation. The transfer function is calibrated and compensated at wafer level, with offset stability of ±0.5 %VFSS after 1000-hour pulsed pressure/temperature bias testing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Pressure Range | 20–250 kPa absolute - covers full manifold vacuum to boost pressure in gasoline and diesel engines. |
| Output Voltage Range | 0.204 V to 4.896 V - provides >4.6 V span for high-resolution A/D conversion with minimal noise amplification. |
| Supply Voltage | 4.85–5.35 Vdc - compatible with standard 5 V automotive microcontroller rails and tolerant of battery voltage ripple. |
| Accuracy | ±1.5 %VFSS (0–85 °C) - includes linearity, temperature hysteresis, pressure hysteresis, TcSpan, and TcOffset contributions. |
| Response Time | 1.0 ms (10–90 %) - supports real-time closed-loop air-fuel ratio control during rapid throttle transients. |
| Operating Temperature | –40 °C to +125 °C - qualified for under-hood placement without external thermal shielding. |
| Sensitivity | 20 mV/kPa - enables direct interface to 12-bit+ ADCs with ≥0.5 kPa resolution at 250 kPa full scale. |
Pinout & Package
MPX4250AP uses the unibody epoxy package (Case 867B-04, 98ASB42796B), featuring a compact, hermetically sealed construction with integrated stainless steel cover and fluorosilicone die coating for media isolation and long-term reliability in harsh engine environments.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VOUT | Analog output | High-impedance ratiometric voltage proportional to applied pressure; requires 470 pF capacitor per Figure 5 for noise filtering before A/D sampling. |
| GND | Signal ground | Dedicated low-noise return path; must be star-connected to minimize ground loop errors in ECU PCB layout. |
| VCC | Power supply | 5.1 V ±0.25 V input; decoupled with 1.0 µF + 0.01 µF capacitors per Figure 5 to suppress switching noise from MCU power domains. |
| DNC (Pin 4) | No connect | Internally floating; must remain unconnected - solder mask coverage recommended to prevent accidental routing. |
| DNC (Pin 5) | No connect | Internally floating; no external connection permitted per datasheet Section 6.2. |
| DNC (Pin 6) | No connect | Internally floating; ties to internal substrate; grounding or routing violates specification and risks calibration drift. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip temperature compensation | Validated over –40 °C to +125 °C operating range, reducing external calibration effort and enabling single-point factory trim. |
| Patented silicon shear-stress strain gauge | Monolithic integration eliminates bond wire fatigue and improves long-term zero-point stability vs. hybrid sensors. |
| Ratiometric output architecture | Output scales with VCC, removing need for precision voltage references and simplifying power domain design in ECUs. |
| Epoxy unibody packaging | Hermetic seal with fluorosilicone gel protects die and wire bonds from moisture, oil vapor, and thermal shock in under-hood use. |
| Low warm-up time | 20 ms stabilization ensures valid pressure readings within first engine crank cycle, supporting fast-start emission strategies. |
Applications
| Engine Intake Manifold Monitoring | Turbocharger Boost Control |
|---|---|
Use Scenario: Real-time measurement of absolute pressure inside the intake manifold upstream of the throttle body in gasoline port-injected engines. IC Role / Device Role / Timing Role: Primary MAP sensor feeding analog voltage to ECU's ADC for air mass calculation and fuel pulse width determination. Use Value: Enables stoichiometric combustion control with ≤1.5 % pressure error budget, directly improving OBD-II compliance and cold-start emissions performance. |
Use Scenario: Closed-loop regulation of turbocharger wastegate position using manifold pressure feedback in forced-induction diesel engines. IC Role / Device Role / Timing Role: High-speed pressure transducer providing 1 ms response data to boost control algorithm running on automotive-grade MCU. Use Value: Supports transient boost pressure tracking up to 250 kPa, preventing over-boost and enabling torque-on-demand delivery within 50 ms. |
| Microcontroller-Based Powertrain ECU | Non-Automotive Industrial Vacuum Sensing |
Use Scenario: Integration into compact, cost-sensitive engine control units where space and BOM count are constrained. IC Role / Device Role / Timing Role: Standalone analog pressure interface with no external op-amps or ADC drivers required due to built-in signal conditioning. Use Value: Reduces component count by ≥3 passive parts per channel and eliminates trimming resistors, lowering PCB area and assembly cost. |
Use Scenario: Monitoring vacuum levels in medical suction pumps or HVAC refrigerant recovery systems requiring 20–250 kPa absolute range. IC Role / Device Role / Timing Role: Calibrated pressure transducer interfaced to industrial PLC analog input modules via standard 0–5 V scaling. Use Value: Delivers automotive-grade reliability and ±1.5 % accuracy without requiring recalibration over 10-year service life in non-automotive settings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar manifold absolute pressure sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPX4250A | Same die and calibration, but packaged in Case 867-08 (98ASB42793B); slightly larger footprint and different mechanical mounting geometry. | Compatible in same ECU designs only if board layout accommodates 12.7 mm × 12.7 mm Case 867-08 vs. 11.38 mm × 11.38 mm Case 867B-04. | Select MPX4250A when legacy board space or mechanical retention features require the older unibody variant. |
| MPXA4250AC6U | Small-outline package (Case 482A-01, 8-pin SOP); shares identical electrical specs but has 4 active pins (VCC/GND/VOUT/DNC) and 4 NC pins. | Requires different PCB footprint and reflow profile; suited for automated SMT lines preferring gull-wing leads over unibody epoxy bodies. | Choose MPXA4250AC6U for high-volume production where SOP handling, testability, and pick-and-place compatibility outweigh unibody ruggedness. |
Compared with MPX4250A and MPXA4250AC6U, the MPX4250AP offers the smallest unibody footprint (Case 867B-04) while retaining full automotive qualification, making it optimal for next-gen compact ECUs where mechanical robustness and space efficiency are jointly prioritized.
Availability
MPX4250AP is available at Aetrix Electronics and suitable for automotive engine control units, turbocharger boost monitoring systems, and industrial vacuum measurement applications requiring stable component supply, long-lifecycle support, and AEC-Q200-aligned reliability.
Supply support for MPX4250AP 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 leader specializing in secure connectivity solutions for automotive, industrial, and IoT applications, with deep expertise in sensor signal conditioning and automotive-grade analog ICs.
The MPX4250AP belongs to NXP's legacy MAP sensor product line, engineered specifically for high-accuracy, temperature-stable absolute pressure measurement in engine management systems - emphasizing integration, reliability, and drop-in compatibility across generations of powertrain ECUs.
FAQ
What is the operating temperature range for the MPX4250AP?
The MPX4250AP is specified to operate from –40 °C to +125 °C, with full accuracy (±1.5 %VFSS) guaranteed from 0 °C to 85 °C. Its on-chip temperature compensation remains functional across the full range, ensuring reliable output even during extreme under-hood thermal transients encountered in automotive applications.
Does the MPX4250AP require external signal conditioning?
No, the MPX4250AP does not require external signal conditioning. It integrates a complete signal chain - including piezoresistive sensing element, temperature compensation network, dual gain stages, and ground-reference shift circuitry - delivering a fully conditioned 0.204–4.896 V analog output directly compatible with standard microcontroller A/D inputs.
What is the pressure media compatibility of the MPX4250AP?
The MPX4250AP is qualified for use with dry air as the pressure medium. Exposure to other media - including oil, fuel vapor, or corrosive gases - may degrade long-term performance or reliability. NXP explicitly advises contacting factory support before deploying MPX4250AP in non-dry-air environments to verify compatibility and avoid calibration drift.
How is the MPX4250AP calibrated and what does "on-chip calibrated" mean?
The MPX4250AP undergoes wafer-level calibration during manufacturing, with trim values stored in on-die thin-film resistors. "On-chip calibrated" means full-scale output, offset, and temperature coefficients are adjusted at probe stage - eliminating need for system-level calibration and ensuring consistent 20–250 kPa transfer function (VOUT = VCC × (P × 0.004 – 0.04)) across units.
Can the MPX4250AP be used in non-automotive applications?
Yes, the MPX4250AP is explicitly stated as ideal for non-automotive applications. Its high accuracy, wide temperature range, and rugged unibody construction make it suitable for industrial vacuum monitoring, medical equipment pressure feedback, and HVAC refrigerant recovery systems - provided dry air or compatible media is used and mechanical mounting aligns with Case 867B-04 dimensions.
MPX4250AP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- MPX4250A
- Package/Case:
- 6-SIP Module
- Packaging:
- Tray
- Product Status:
- Obsolete
- Applications:
- Board Mount
- Pressure Type:
- Absolute
- Operating Pressure:
- 2.9PSI ~ 36.26PSI (20kPa ~ 250kPa)
- Output Type:
- Analog Voltage
- Output:
- 0.2 V ~ 4.9 V
- Accuracy:
- ±1.5%
- Voltage - Supply:
- 4.85V ~ 5.35V
- Port Size:
- Male - 0.19" (4.93mm) Tube
- Port Style:
- Barbed
- Features:
- Temperature Compensated
- Termination Style:
- PC Pin
- Maximum Pressure:
- 145.04PSI (1000kPa)
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- -
MPX4250AP FAQ
1.How can I place an order for MPX4250AP through Aetrix?
Please submit a Request for Quotation (RFQ) for MPX4250AP 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 MPX4250AP reliable?
The price and inventory of MPX4250AP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPX4250AP is usually 5 days.
3.What payment methods are accepted for MPX4250AP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPX4250AP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPX4250AP?
MPX4250AP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPX4250AP 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 MPX4250AP?
For technical support, including MPX4250AP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPX4250AP requirements.
6.How does Aetrix verify that MPX4250AP is sourced from the original manufacturer or authorized distributors?
All MPX4250AP 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 MPX4250AP meets industry standards.
7.What is the process for return or replacement of MPX4250AP?
All MPX4250AP units undergo pre-shipment inspection (PSI). If there is an issue with MPX4250AP, 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 MPX4250AP part is unused and in its original packaging.
Return procedure for MPX4250AP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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