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NXP Semiconductors MPX4100AP
- Part No.:
- MPX4100AP
- Manufacturer:
- NXP Semiconductors
- Category:
- Pressure Sensors, Transducers
- Package:
- 6-SIP Module
- Datasheet:
-
MPX4100AP.pdf
- Description:
- SENSOR 15.23PSIA 0.19" 4.9V
- Quantity:
- Payment:
- Shipping:
Inventory:1,828
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Product details
Overview
MPX4100AP from Freescale Semiconductor is a monolithic, signal-conditioned silicon absolute pressure sensor designed for manifold absolute pressure (MAP) sensing in automotive engine control systems. It delivers a ratiometric analog output (0.3–4.9 V) over 20–105 kPa, 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. Its primary role is to enable precise fuel injection calculation via intake manifold pressure measurement.
For engineers reviewing the MPX4100AP datasheet, MPX4100AP pinout, MPX4100AP application, or MPX4100AP equivalent, key selection considerations include its unibody epoxy package with ported configuration (Case 867B-04), 1.0 ms response time, 54 mV/kPa sensitivity, and compatibility with microcontroller ADC interfaces in harsh under-hood environments.
Technical Context
The MPX4100AP integrates a piezoresistive silicon diaphragm with thin-film metallization and bipolar signal conditioning circuitry - including gain stages, temperature compensation, and offset calibration - all on a single die. Its transfer function is VOUT = VS × (0.01059 × P − 0.1518), with ratiometric behavior ensuring output stability relative to supply voltage variation.
It uses a sealed vacuum reference cavity for true absolute pressure measurement and relies on fluorosilicone gel encapsulation to isolate the die while transmitting pressure. The device requires external decoupling (1.0 μF + 0.01 μF + 470 pF) per Figure 3 to meet electrical specifications and prevent noise-induced errors in engine control feedback loops.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Pressure Range | 20–105 kPa (2.9–15.2 psi): Full operational range for gasoline/diesel intake manifold vacuum and boost monitoring. |
| Output Voltage | 0.3–4.9 V (at VS = 5.1 V): Ratiometric analog output directly compatible with 5 V microcontroller ADCs without scaling. |
| Accuracy | ±1.8 %VFSS (0°–85°C): Total error budget including linearity, hysteresis, and thermal drift - sufficient for closed-loop fuel trim. |
| Response Time | 1.0 ms (10%–90%): Enables real-time tracking of rapid manifold pressure transients during throttle snap events. |
| Operating Temp | -40°C to +125°C: Rated for under-hood placement without external thermal shielding or derating. |
| Sensitivity | 54 mV/kPa: High gain enables robust signal-to-noise ratio even with low-cost 10-bit ADCs. |
| Supply Voltage | 4.85–5.35 V DC: Tight excitation window ensures stable calibration and minimizes supply-induced output drift. |
Pinout & Package
MPX4100AP uses the unibody epoxy surface-mount package Case 867B-04 (ported variant), featuring a stainless-steel cap and fluorosilicone gel isolation. Dimensions: 18.42 mm × 12.57 mm × 5.59 mm (L×W×H). Port side is identified by part marking; pressure (P1) applied to marked side.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VOUT | Analog output signal referenced to GND; connects directly to MCU ADC input with recommended RC filtering. |
| 2 | GND | Signal ground return path; must be star-connected to power ground near sensor to minimize noise coupling. |
| 3 | VS | Positive supply input (4.85–5.35 V); requires local 1.0 μF ceramic + 0.01 μF film decoupling per datasheet Figure 3. |
| 4–6 | No Connect | Internally unused; must remain floating - no routing or soldering permitted. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip temperature compensation | Stabilizes offset and span across -40°C to +125°C, eliminating need for external thermistor-based correction in ECU designs. |
| Dual-stage gain amplification | Provides high-output drive capability (0.1 mA source current) and low-impedance output for reliable ADC sampling without buffer op-amps. |
| Epoxy unibody construction | Hermetically seals sensing element against moisture, oil, and vibration - qualified for 1000-hour pulsed pressure/thermal cycling reliability testing. |
| Ratiometric output architecture | Ensures proportional output vs. supply voltage, enabling use with noisy or unregulated 5 V rails common in automotive power distribution. |
| Fluorosilicone gel media interface | Transmits pressure while blocking corrosive combustion byproducts and condensates - validated for dry air operation per qualification standards. |
Applications
| Automotive Engine Control | Industrial Vacuum Monitoring |
|---|---|
|
Use Scenario: Real-time manifold pressure measurement in gasoline direct injection (GDI) engines during transient throttle conditions. IC Role / Device Role / Timing Role: Absolute pressure transducer providing primary feedback for air mass calculation and fuel pulse width modulation. Use Value: ±1.8% VFSS accuracy and 1.0 ms response enable <5% air-fuel ratio deviation during aggressive tip-in/tip-out maneuvers. |
Use Scenario: Continuous vacuum level supervision in semiconductor process chamber load-lock systems. IC Role / Device Role / Timing Role: Absolute pressure sensor interfaced to PLC analog input for vacuum integrity verification prior to wafer transfer. Use Value: -40°C to +125°C operating range supports ambient temperature fluctuations in fab environments without recalibration. |
| Medical Respiratory Equipment | HVAC Air Handling Units |
|
Use Scenario: Inspiratory/expiratory pressure differential detection in portable ventilators using sealed reference cavity. IC Role / Device Role / Timing Role: Absolute pressure sensing element feeding into PID-controlled blower motor driver for tidal volume regulation. Use Value: 0.3–4.9 V output spans clinical range (0–100 cmH2O ≈ 0–9.8 kPa) with 12-bit ADC resolution ≤0.25 cmH2O LSB. |
Use Scenario: Duct static pressure monitoring in variable air volume (VAV) boxes to modulate damper position and fan speed. IC Role / Device Role / Timing Role: Absolute pressure transducer supplying feedback to HVAC controller for maintaining setpoint pressure across duct networks. Use Value: 20–105 kPa range covers typical HVAC duct pressures (0.1–2.0 kPa above ambient), with long-term offset stability ≤±0.5% VFSS over 1000 hours. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar absolute pressure sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPX4250A | Higher full-scale range (25–250 kPa); same package, pinout, and signal conditioning architecture. | Better suited for boosted engines or turbocharged applications requiring >105 kPa measurement. | Select MPX4250A only if system max pressure exceeds 105 kPa; otherwise MPX4100AP provides superior resolution in 20–105 kPa band. |
| MPX5100DP | Differential configuration (P1–P2); identical sensitivity, accuracy, and temperature range but dual-port mechanical design. | Requires two pressure ports and calibrated reference line - unsuitable for absolute vacuum-referenced MAP use. | Use MPX5100DP only for differential pressure tasks (e.g., filter clogging detection); not a functional substitute for MPX4100AP's sealed vacuum reference. |
Compared with MPX4250A and MPX5100DP, the MPX4100AP offers optimal resolution and error budget specifically within the 20–105 kPa manifold pressure window, with guaranteed ported unibody packaging (Case 867B-04) and factory calibration traceable to NIST standards.
Availability
MPX4100AP is available at Aetrix Electronics and suitable for automotive engine control units, industrial vacuum monitoring systems, and medical respiratory devices requiring stable component supply across extended production lifecycles.
Supply support for MPX4100AP 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) was a leading designer of embedded processors and sensors for automotive, industrial, and consumer applications before its 2015 acquisition.
The MPX4100AP belongs to Freescale's MPX4100A series of integrated silicon pressure sensors, engineered specifically for high-reliability, cost-sensitive manifold absolute pressure measurement in engine management systems.
FAQ
What is the pressure reference type of the MPX4100AP?
The MPX4100AP uses a sealed vacuum reference cavity, making it a true absolute pressure sensor. Its output corresponds to pressure relative to absolute zero (perfect vacuum), not atmospheric pressure. This is essential for accurate air mass calculation in engine control systems where intake manifold vacuum varies with altitude and weather. The MPX4100AP's absolute reference is factory-sealed and does not require external venting or barometric compensation.
Does the MPX4100AP require external signal conditioning?
No, the MPX4100AP integrates full signal conditioning on-die, including temperature compensation, offset nulling, and gain amplification. It delivers a ready-to-use 0.3–4.9 V analog output directly compatible with standard 5 V microcontroller ADC inputs. Only external power supply decoupling (1.0 μF + 0.01 μF + 470 pF per Figure 3) is required - no op-amps, ADC drivers, or external temperature sensors are needed for basic operation of the MPX4100AP.
What is the meaning of "AP" in MPX4100AP?
The "AP" suffix in MPX4100AP denotes the ported unibody package variant (Case 867B-04), where the pressure port is integrated into the epoxy housing for direct connection to intake manifolds. Unlike the base MPX4100A (Case 867-08), the MPX4100AP features a molded port structure and identification of the pressure (P1) side by part marking - critical for correct orientation during SMT assembly. This distinguishes it from non-ported or small-outline variants like MPXAZ4100A.
Can the MPX4100AP withstand exposure to fuel vapors or oil mist?
The MPX4100AP uses fluorosilicone gel encapsulation validated for dry air operation; Freescale explicitly states that media other than dry air may adversely affect long-term reliability. While the epoxy unibody and stainless-steel cap provide mechanical durability, fuel vapors and oil mist are not qualified media. For such environments, Freescale recommends the MPXAZ4100A series with media-resistant gel - the MPX4100AP should be used only with clean, dry air or inert gases per its qualification data.
What is the warm-up time specification for the MPX4100AP?
The MPX4100AP has a specified warm-up time of 20 ms - defined as the time required after stabilized pressure application for the output to settle within final value tolerance. This fast stabilization supports high-speed engine control loops and enables rapid system diagnostics during key-on self-test sequences. The 20 ms figure assumes proper decoupling per Figure 3 and applies across the full -40°C to +125°C operating temperature range, making it suitable for cold-start and hot-soak conditions where the MPX4100AP must deliver valid readings immediately.
MPX4100AP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- MPX4100A
- Package/Case:
- 6-SIP Module
- Packaging:
- Tray
- 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 ~ 4.9 V
- Accuracy:
- ±1.8%
- 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:
- 58.02PSI (400kPa)
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- -
MPX4100AP FAQ
1.How can I place an order for MPX4100AP through Aetrix?
Please submit a Request for Quotation (RFQ) for MPX4100AP 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 MPX4100AP reliable?
The price and inventory of MPX4100AP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPX4100AP is usually 5 days.
3.What payment methods are accepted for MPX4100AP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPX4100AP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPX4100AP?
MPX4100AP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPX4100AP 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 MPX4100AP?
For technical support, including MPX4100AP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPX4100AP requirements.
6.How does Aetrix verify that MPX4100AP is sourced from the original manufacturer or authorized distributors?
All MPX4100AP 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 MPX4100AP meets industry standards.
7.What is the process for return or replacement of MPX4100AP?
All MPX4100AP units undergo pre-shipment inspection (PSI). If there is an issue with MPX4100AP, 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 MPX4100AP part is unused and in its original packaging.
Return procedure for MPX4100AP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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