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NXP Semiconductors MPXA4100AC6U
- Part No.:
- MPXA4100AC6U
- Manufacturer:
- NXP Semiconductors
- Category:
- Pressure Sensors, Transducers
- Package:
- 8-SMD, Gull Wing, Top Port
- Datasheet:
-
MPXA4100AC6U.pdf
- Description:
- SENSOR 15.23PSIA 0.13" 49V
- Quantity:
- Payment:
- Shipping:
Inventory:3,710
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Product details
Overview
MPXA4100AC6U from Freescale Semiconductor is a monolithic, signal-conditioned, absolute pressure sensor designed for manifold absolute pressure (MAP) sensing in engine control systems. It delivers a ratiometric analog output (0.3–4.9 V) over 20–105 kPa range, features on-chip temperature compensation (-40°C to +125°C), ±1.8% full-scale accuracy (0°–85°C), and operates from 4.85–5.35 V supply with 7.0 mA typical current draw.
For engineers reviewing the MPXA4100AC6U datasheet, MPXA4100AC6U pinout, MPXA4100AC6U application, or MPXA4100AC6U equivalent, this sensor is selected for high-reliability automotive intake manifold pressure measurement where calibrated analog output, thermal stability, and small-outline surface-mount compatibility are critical design requirements.
Technical Context
The MPXA4100AC6U integrates a piezoresistive silicon sensing element with thin-film temperature compensation, bipolar signal conditioning circuitry, and gain-stage amplification - all on a single die. Its transfer function is VOUT = VS × (0.01059 × P − 0.1518), making output directly proportional to absolute pressure and supply voltage.
It uses a sealed vacuum reference cavity for true absolute pressure measurement and employs fluorosilicone gel encapsulation to isolate the die while transmitting pressure. The device requires no external calibration and meets automotive-grade reliability standards including 1000-hour pulsed pressure/temperature cycling with ±0.5%VFSS offset stability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Pressure Range | 20–105 kPa absolute - covers full automotive manifold vacuum-to-boost range (2.9–15.2 psi) |
| Output Voltage | 0.3–4.9 V ratiometric - scales linearly with supply voltage (VS = 4.85–5.35 V), simplifying ADC reference alignment |
| Accuracy | ±1.8% VFSS over 0°–85°C - includes linearity, hysteresis, TcOffset, and TcSpan error components |
| Supply Current | 7.0 mA typical - enables low-power ECU subsystem integration without excessive thermal load |
| Response Time | 1.0 ms (10%–90%) - supports real-time fuel injection timing at engine speeds up to ~10,000 RPM |
| Operating Temp | -40°C to +125°C - qualified for under-hood placement with no external thermal shielding required |
| Sensitivity | 54 mV/kPa - provides >2.5 mV/kPa margin above noise floor for robust 12-bit ADC resolution |
Pinout & Package
MPXA4100AC6U uses the Case 482A-01 small-outline surface-mount package (10.54 × 10.54 × 5.84 mm), featuring a port-attached side (P1) for pressure interface and thermoplastic PPS housing rated for harsh under-hood environments.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VOUT | Analog output signal - buffered, ratiometric voltage proportional to absolute pressure and VS |
| 2 | GND | Analog ground reference - must be connected to clean system AGND with low-impedance path |
| 3 | VS | Supply input - accepts 4.85–5.35 V; decoupling (1.0 μF + 0.01 μF) required per Figure 3 |
| 4–6 | No Connect | Internally unconnected - no PCB routing or termination required |
Key Features
| Feature | Design Value |
|---|---|
| On-chip temperature compensation | Stabilizes offset and span across -40°C to +125°C without external circuitry or software correction |
| Dual-gel media option (standard) | Fluorosilicone gel enables compatibility with dry air and common intake gases; avoids long-term drift from hydrocarbon exposure |
| Ratiometric output architecture | Eliminates need for precision voltage references - output scaling tracks VS, simplifying microcontroller ADC design |
| Integrated signal conditioning | Provides factory-calibrated, amplified, and filtered output - no external op-amps or compensation networks needed |
| Small-outline SMT package (Case 482A) | Enables automated assembly and compact ECU layout; port-attached side allows direct manifold gasket sealing |
Applications
| Automotive Engine Control | Industrial Vacuum Monitoring |
|---|---|
Use Scenario: Measuring intake manifold pressure in gasoline and diesel powertrains for real-time air mass calculation and fuel injection timing. IC Role / Device Role / Timing Role: Absolute pressure transducer providing primary feedback for closed-loop air-fuel ratio control. Use Value: ±1.8% VFSS accuracy and 1 ms response enable precise stoichiometric combustion across wide RPM/load ranges. |
Use Scenario: Monitoring vacuum level in semiconductor process chambers or HVAC refrigerant recovery systems. IC Role / Device Role / Timing Role: Primary absolute pressure sensor interfacing directly to industrial PLC analog inputs. Use Value: -40°C to +125°C operating range and fluorosilicone gel allow reliable operation in uncontrolled ambient environments. |
| Medical Respiratory Devices | Barometric Altitude Sensing |
Use Scenario: Detecting patient airway pressure in portable ventilators and CPAP machines requiring FDA-compliant pressure accuracy. IC Role / Device Role / Timing Role: Calibrated analog pressure front-end feeding isolated sigma-delta ADCs in battery-powered medical electronics. Use Value: Factory-trimmed offset and span reduce calibration labor; 7 mA supply current extends battery life in portable units. |
Use Scenario: Providing altitude reference in UAV flight controllers and weather station data loggers. IC Role / Device Role / Timing Role: Absolute atmospheric pressure sensor delivering stable output for barometric height computation. Use Value: Sealed vacuum reference and ±0.5%VFSS offset stability ensure <10 m altitude error over 1000-hour field deployment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar absolute pressure sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPXAZ4100AC6U | Same package and pinout; uses media-resistant gel instead of standard fluorosilicone - higher chemical resistance but identical electrical specs | Better suited for intake systems exposed to oil vapor or aggressive fuel blends; same automotive MAP use case | Select MPXAZ4100AC6U when media compatibility with hydrocarbons or ethanol blends is required; otherwise MPXA4100AC6U is optimal for standard dry-air applications. |
| MPX5100DP | Dual-port differential configuration (not absolute); 100 kPa range; requires external vacuum reference for absolute measurement | Not drop-in - needs redesign of pressure porting and signal conditioning; intended for differential pressure (e.g., airflow) not MAP | Only consider MPX5100DP if differential sensing is acceptable and board layout allows vacuum reference plumbing; MPXA4100AC6U remains preferred for true absolute MAP. |
Compared with MPXAZ4100AC6U, MPXA4100AC6U offers identical performance in dry-air environments at lower cost; versus MPX5100DP, it eliminates external vacuum reference dependency and reduces BOM count by integrating absolute reference - critical for space-constrained ECU designs.
Availability
MPXA4100AC6U is available at Aetrix Electronics and suitable for automotive engine control, industrial vacuum monitoring, and medical respiratory device applications requiring stable component supply, long-lifecycle support, and traceable sourcing.
Supply support for MPXA4100AC6U 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, sensors, and analog ICs, with deep expertise in embedded system-on-chip solutions.
The MPX4100A series - including MPXA4100AC6U - was engineered specifically for high-accuracy, high-reliability manifold absolute pressure measurement in engine control units, emphasizing integrated signal conditioning, thermal stability, and automotive qualification.
FAQ
What is the pressure reference type used by the MPXA4100AC6U?
The MPXA4100AC6U uses a sealed vacuum reference cavity, making it a true absolute pressure sensor. Its output reflects pressure relative to absolute zero (perfect vacuum), not ambient atmospheric pressure - essential for accurate manifold pressure measurement regardless of altitude or weather conditions. This architecture is confirmed in the datasheet's "Absolute Element" labeling and transfer function definition.
Does the MPXA4100AC6U require external calibration or trimming?
No, the MPXA4100AC6U does not require external calibration or trimming. It is fully factory-calibrated for offset, full-scale output, and temperature compensation across -40°C to +125°C. The on-chip signal conditioning includes laser-trimmed resistors and temperature-compensated gain stages, enabling direct connection to an ADC without additional hardware or software compensation routines.
What is the maximum pressure the MPXA4100AC6U can withstand without damage?
The MPXA4100AC6U has a maximum pressure rating of 400 kPa (58 psi) as specified in the Absolute Maximum Ratings table. Exceeding this pressure may cause permanent mechanical or electrical damage to the sensing diaphragm or internal circuitry. For normal operation, it is rated for 20–105 kPa, and sustained operation above 105 kPa is outside its specified accuracy range.
Can the MPXA4100AC6U be used in non-automotive applications?
Yes, the MPXA4100AC6U is explicitly stated in the datasheet as "ideal for non-automotive applications." Its wide temperature range (-40°C to +125°C), high accuracy, and robust packaging make it suitable for industrial vacuum monitoring, medical respiratory devices, barometric altitude sensing, and HVAC control - provided the media is compatible with fluorosilicone gel (e.g., dry air, inert gases).
What decoupling capacitors are recommended for the MPXA4100AC6U power supply?
The MPXA4100AC6U requires a decoupling network as shown in Figure 3 of the datasheet: a 1.0 μF bulk capacitor, a 0.01 μF ceramic capacitor, and a 470 pF filter capacitor between VS and GND. This configuration suppresses high-frequency noise and ensures stable operation during rapid pressure transients - critical for maintaining ±1.8% VFSS accuracy and preventing output oscillation.
MPXA4100AC6U Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- MPXA4100A
- Package/Case:
- 8-SMD, Gull Wing, Top Port
- Packaging:
- Tube
- Product Status:
- Obsolete
- Applications:
- Board Mount
- Pressure Type:
- Absolute
- Operating Pressure:
- 2.9PSI ~ 15.23PSI (20kPa ~ 105kPa)
- Output Type:
- Analog Voltage
- Output:
- 0.3 V ~ 49 V
- Accuracy:
- ±1.8%
- Voltage - Supply:
- 4.85V ~ 5.35V
- Port Size:
- Male - 0.13" (3.17mm) Tube
- Port Style:
- Barbless
- Features:
- Temperature Compensated
- Termination Style:
- Gull Wing
- Maximum Pressure:
- 58.02PSI (400kPa)
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- -
MPXA4100AC6U FAQ
1.How can I place an order for MPXA4100AC6U through Aetrix?
Please submit a Request for Quotation (RFQ) for MPXA4100AC6U 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 MPXA4100AC6U reliable?
The price and inventory of MPXA4100AC6U are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPXA4100AC6U is usually 5 days.
3.What payment methods are accepted for MPXA4100AC6U?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPXA4100AC6U transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPXA4100AC6U?
MPXA4100AC6U orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPXA4100AC6U 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 MPXA4100AC6U?
For technical support, including MPXA4100AC6U datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPXA4100AC6U requirements.
6.How does Aetrix verify that MPXA4100AC6U is sourced from the original manufacturer or authorized distributors?
All MPXA4100AC6U 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 MPXA4100AC6U meets industry standards.
7.What is the process for return or replacement of MPXA4100AC6U?
All MPXA4100AC6U units undergo pre-shipment inspection (PSI). If there is an issue with MPXA4100AC6U, 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 MPXA4100AC6U part is unused and in its original packaging.
Return procedure for MPXA4100AC6U:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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