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Infineon Technologies KP226E3408XTMA1
- Part No.:
- KP226E3408XTMA1
- Manufacturer:
- Infineon Technologies
- Category:
- Pressure Sensors, Transducers
- Package:
- 8-SMD Module
- Datasheet:
-
KP226E3408XTMA1.pdf
- Description:
- SENSOR 58.02PSIA 4.85V DSOF8
- Quantity:
- Payment:
- Shipping:
Inventory:1,400
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Product details
Overview
KP226E3408 from Infineon Technologies is an analog absolute pressure sensor IC based on capacitive MEMS sensing with monolithic BiCMOS signal conditioning. It delivers ratiometric voltage output (0.35 V to 4.65 V) across 15–400 kPa, achieves ±3.8 kPa accuracy at 0–100 °C, supports -40 °C to +140 °C operation, and integrates broken wire detection for automotive manifold air pressure measurement.
For engineers reviewing the KP226E3408 datasheet, KP226E3408 pinout, KP226E3408 application, or KP226E3408 equivalent, this sensor provides calibrated analog pressure data with clamping, EEPROM-based calibration storage, OBD-ready diagnostics, and automotive-qualified reliability in a green PG-DSOF-8-16 SMD package.
Technical Context
The KP226E3408 implements a third-order polynomial digital linearization engine operating on digitized sensor cell output, with temperature compensation and offset/gain correction derived from factory-stored EEPROM parameters (90+22 bit). Its analog output is ratiometric to VDD, enabling supply-voltage rejection in host systems.
Clamping thresholds (VDD and GND) enable open-bond detection: when VDD or GND is disconnected, internal JFETs force VOUT to rail-level voltages-0 V or VDD-allowing microcontroller-based fault identification without external circuitry. The 1 kHz sampling rate and 12-bit ADC resolution support high-fidelity pressure acquisition within its specified range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Pressure Range | 15 kPa to 400 kPa absolute - covers full intake manifold vacuum-to-boost range in gasoline and diesel engines. |
| Output Voltage | 0.35 V to 4.65 V ratiometric - scales linearly with VDD; enables direct ADC interfacing without external reference. |
| Accuracy | ±3.8 kPa (0–100 °C) - meets stringent AEC-Q100 Grade 0 requirements for engine control unit (ECU) feedback loops. |
| Operating Temp | -40 °C to +140 °C - qualified for under-hood placement with no derating up to 140 °C ambient. |
| Supply Voltage | 4.5 V to 5.5 V - compatible with standard 5 V automotive power rails and noise-tolerant against ripple. |
| Package | PG-DSOF-8-16 - surface-mount, moisture-sensitive level 3, RoHS-compliant "green" housing with dual GND pins for low-impedance grounding. |
| Diagnostic Feature | Built-in broken wire detection via clamping - eliminates need for external comparators or pull-up/down resistors in OBD-II implementations. |
Pinout & Package
Package: PG-DSOF-8-16 - 8-pin, small-outline flat no-lead package with exposed thermal pad, dual ground terminals (Pins 6 and 8), and test/programming pins isolated for production use only.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 TEST | Digital test interface | Used only during factory calibration; must be left floating in end application to prevent ESD path coupling or ground faults. |
| 2 CLOCK / VPROG | Serial programming clock / programming voltage input | Enables EEPROM write access during calibration; not functional in normal operation; leave unconnected. |
| 3 DATA IN | Serial programming data input | Factory-only interface for calibration parameter loading; no runtime function; must be left floating. |
| 4 DATA OUT | Serial programming data output | Read-only during calibration; inactive during operation; floating connection required for robustness. |
| 5 VDD | Positive supply terminal | 4.5–5.5 V nominal supply; powers analog front-end, digital logic, and EEPROM; decoupling capacitor mandatory. |
| 6 GND | Primary circuit ground | Low-impedance return path for analog and digital sections; must be connected to system ground plane. |
| 7 VOUT | Analog pressure output | Ratiometric voltage proportional to pressure (0.35–4.65 V); drives 10 kΩ minimum load; buffered output stage. |
| 8 GND | Secondary circuit ground | Dedicated ground pin for improved noise immunity and thermal dissipation; must be connected separately to ground plane. |
Key Features
| Feature | Design Value |
|---|---|
| Capacitive MEMS sensing element | Monolithic silicon diaphragm with integrated electrode array enables long-term stability and minimal hysteresis (<0.2% FS). |
| On-chip digital linearization | Third-order polynomial engine using EEPROM-stored coefficients eliminates need for host MCU computation or lookup tables. |
| EEPROM with FEC protection | 90+22-bit calibration memory with forward error correction ensures single-bit errors are corrected and multi-bit errors trigger safe output (GND). |
| Open bond detection (OBD) | Hardware-level fault signaling via clamped VOUT (0 V or VDD) upon VDD/GND interruption - reduces diagnostic firmware complexity. |
| Automotive qualification | AEC-Q100 Grade 0 compliant (−40 °C to +140 °C), qualified per ISO/TS 16949, and validated for 10,000-hour lifetime at 140 °C. |
Applications
| Engine Manifold Pressure Sensing | Industrial Vacuum Monitoring |
|---|---|
|
Use Scenario: Real-time measurement of intake manifold absolute pressure in gasoline/diesel powertrains for air mass calculation and torque control. IC Role / Device Role / Timing Role: Primary analog pressure transducer feeding ECU ADC; updates at ≥1 kHz with <10 µs response time. Use Value: Enables stoichiometric fuel injection and knock suppression via precise air-fuel ratio control under transient load conditions. |
Use Scenario: Continuous monitoring of vacuum levels in semiconductor process chambers and HVAC refrigerant recovery systems. IC Role / Device Role / Timing Role: Standalone analog pressure node interfaced to PLC analog inputs; operates continuously over extended thermal cycles. Use Value: Delivers ±3.8 kPa repeatability across -25 °C to +85 °C ambient, eliminating recalibration drift in sealed industrial enclosures. |
| Medical Respiratory Equipment | Consumer Appliance Airflow Control |
|
Use Scenario: Differential pressure sensing in CPAP and ventilator airflow paths to regulate patient-delivered pressure and detect mask leaks. IC Role / Device Role / Timing Role: Absolute pressure reference for closed-loop pressure regulation; sampled synchronously with PWM fan control. Use Value: Supports FDA Class II compliance with traceable calibration, clamping-based fault detection, and 140 °C reflow survivability for sterilizable assemblies. |
Use Scenario: Intake pressure feedback in smart vacuum cleaners and robotic mops to adapt suction power based on filter clogging or surface resistance. IC Role / Device Role / Timing Role: Low-cost analog sensor directly connected to 10-bit MCU ADC; powered from shared 5 V rail with motor driver. Use Value: Enables battery-life optimization via adaptive motor speed control while maintaining >95% accuracy over 0–50 °C ambient without software compensation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar absolute pressure sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPX5700AP | Analog output (0–5 V), ±1.5% FS accuracy, no built-in clamping or EEPROM; requires external compensation. | Lacks OBD capability and temperature compensation - demands host MCU linearization and fault logic. | Select when cost sensitivity outweighs diagnostic robustness and calibration traceability requirements. |
| SP120-015A | Digital I²C output, ±1.0% FS accuracy, integrated temperature sensor, but limited to 0–125 °C operation. | Requires I²C interface and firmware stack; unsuitable for high-temp under-hood locations beyond 125 °C. | Prefer for space-constrained consumer designs where digital interface simplifies routing and reduces ADC channel count. |
Compared with MPX5700AP and SP120-015A, the KP226E3408 uniquely combines automotive-grade temperature range, factory-calibrated ratiometric analog output, hardware-level OBD, and EEPROM-protected coefficients - reducing BOM count, firmware overhead, and validation effort in safety-critical pressure feedback loops.
Availability
KP226E3408 is available at Aetrix Electronics and suitable for automotive engine control, industrial vacuum monitoring, medical respiratory equipment, and consumer appliance airflow control requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for KP226E3408 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
Infineon Technologies is a German semiconductor manufacturer specializing in power management, automotive electronics, and sensor solutions, with global R&D and manufacturing infrastructure.
The KP226E3408 belongs to Infineon's KP2xx family of analog pressure sensors, engineered specifically for high-reliability, high-accuracy absolute pressure measurement in harsh environments including engine compartments and medical devices.
FAQ
What is the recommended PCB layout practice for KP226E3408 to ensure signal integrity?
Use separate copper pours for Pins 6 and 8 (GND), both connected to a low-impedance ground plane via multiple vias. Place a 100 nF X7R ceramic capacitor between Pin 5 (VDD) and Pin 6 (GND), located ≤2 mm from the package. Avoid routing noisy signals near Pin 7 (VOUT); keep analog traces short and shielded if adjacent to switching nodes.
Does KP226E3408 require external calibration after soldering?
No. The KP226E3408 is fully calibrated at wafer and package level before shipment. All offset, gain, temperature coefficients, and third-order linearization parameters are stored in on-chip EEPROM with forward error correction. No post-solder calibration or trimming is needed for production use.
Can KP226E3408 be used in differential pressure configurations?
No. The KP226E3408 is an absolute pressure sensor with a sealed reference cavity. It measures pressure relative to vacuum, not between two ports. For differential applications, Infineon offers the KP226E3409 variant, which shares the same package and pinout but features dual-port sensing architecture.
What happens to VOUT during a GND disconnect event?
During GND disconnect, internal JFETs in the broken-wire detection circuit become self-conducting, pulling VOUT strongly toward VDD. This rail-to-rail shift (to ~VDD) is detected by the host microcontroller as an overvoltage condition, enabling immediate fault flagging without additional hardware.
KP226E3408XTMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 8-SMD Module
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- Medical Ventilation
- Pressure Type:
- Absolute
- Operating Pressure:
- 2.18PSI ~ 58.02PSI (15kPa ~ 400kPa)
- Output Type:
- Analog Voltage
- Output:
- 0.1 V ~ 4.85 V
- Accuracy:
- ±0.81PSI (5.6kPa)
- Voltage - Supply:
- 4.5V ~ 5.5V
- Port Size:
- -
- Port Style:
- No Port
- Features:
- Amplified Output, Temperature Compensated
- Termination Style:
- SMD (SMT) Tab
- Maximum Pressure:
- -
- Operating Temperature:
- -40°C ~ 140°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-DSOF-8-16
KP226E3408XTMA1 FAQ
1.How can I place an order for KP226E3408XTMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for KP226E3408XTMA1 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 KP226E3408XTMA1 reliable?
The price and inventory of KP226E3408XTMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for KP226E3408XTMA1 is usually 5 days.
3.What payment methods are accepted for KP226E3408XTMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for KP226E3408XTMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for KP226E3408XTMA1?
KP226E3408XTMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your KP226E3408XTMA1 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 KP226E3408XTMA1?
For technical support, including KP226E3408XTMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your KP226E3408XTMA1 requirements.
6.How does Aetrix verify that KP226E3408XTMA1 is sourced from the original manufacturer or authorized distributors?
All KP226E3408XTMA1 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 KP226E3408XTMA1 meets industry standards.
7.What is the process for return or replacement of KP226E3408XTMA1?
All KP226E3408XTMA1 units undergo pre-shipment inspection (PSI). If there is an issue with KP226E3408XTMA1, 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 KP226E3408XTMA1 part is unused and in its original packaging.
Return procedure for KP226E3408XTMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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