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Infineon Technologies KP275XTMA1
- Part No.:
- KP275XTMA1
- Manufacturer:
- Infineon Technologies
- Category:
- Pressure Sensors, Transducers
- Package:
- -
- Datasheet:
-
KP275XTMA1.pdf
- Description:
- KP275 - DIGITAL TURBO MAP SENSOR
- Quantity:
- Payment:
- Shipping:
Inventory:563
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Product details
Overview
KP275XTMA1 from Infineon Technologies is a digital absolute pressure sensor IC with integrated SENT interface and external NTC temperature sensor interface, designed for manifold air pressure (MAP) measurement in turbocharged engines. It delivers ±0.77% FSS pressure accuracy over 10–400 kPa, real 12-bit pressure and temperature resolution, and built-in self-diagnostic capability triggered at power-on. It operates from 4.5–5.5 V and is qualified for automotive under AEC-Q100.
For engineers reviewing the KP275XTMA1 datasheet, KP275XTMA1 pinout, KP275XTMA1 application, or KP275XTMA1 equivalent, key selection criteria include SENT protocol compliance (SAE J2716 rev. Jan. 2010), media robustness to iodine/condensates, dual-channel 12-bit digitization (pressure + external NTC), and diagnostic coverage of sensor cells and signal path.
Technical Context
The KP275 implements a capacitive pressure sensing element monolithically integrated with BiCMOS signal conditioning, including ADC, digital core (iSM), EEPROM-based calibration storage, and SENT encoder. Its pressure transfer function is linear with factory-trimmed gain (Sp = 9.495 LSB/kPa) and offset (offsp = 98.05 LSB), clamped to output codes 1–4088.
It supports concurrent digitization of internal pressure and external NTC voltage via dedicated analog front-end and buffer amplifier, both converted to 12-bit values and transmitted via SENT slow-message channel. Diagnostic modes verify sensor cell integrity and signal path functionality during power-up reset.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Pressure Range | 10–400 kPa absolute; covers full engine manifold vacuum-to-boost range for turbo applications. |
| Pressure Accuracy | ±0.77% Full Scale Span (FSS); enables precise air mass calculation for closed-loop engine control. |
| Output Resolution | Real 12-bit for both pressure and temperature channels; provides 4088 discrete steps across full scale. |
| Interface Protocol | SENT (SAE J2716 rev. Jan. 2010); single-wire, asynchronous, low EMI digital output compatible with automotive microcontrollers. |
| NTC Interface | Dedicated NTCIN pin with internal buffer amplifier and linearization circuitry; supports standard NTC thermistors for ambient/intake air temperature. |
| Supply Voltage | 4.5–5.5 V; matches automotive 5 V rail with built-in voltage regulator for analog/digital domains. |
| Operating Temp | −40°C to +150°C ambient; qualified per AEC-Q100 Grade 0 for under-hood deployment. |
Pinout & Package
Package: PG-DSOF-8-162 - 8-pin, green, media-robust surface-mount housing with exposed thermal pad, optimized for harsh automotive environments including EGR exposure.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 NCS | Not-Chip-Select (active-low) | Enables SPI communication only during calibration/test; must be left floating in normal operation. |
| 2 CLK | Serial Clock | External clock input for SPI interface; inactive during SENT operation. |
| 3 SDI | Serial Data In | SPI data input for factory calibration; no functional role in application mode. |
| 4 SDO | Serial Data Out | SPI tri-state output for test access; high-impedance during SENT operation. |
| 5 VDD | Supply Voltage | Main 4.5–5.5 V power input; powers internal regulator and all analog/digital blocks. |
| 6 SENTOUT | SENT Output | Single-wire digital output carrying pressure, temperature, and diagnostic data per SAE J2716. |
| 7 NTCIN | NTC Input | Analog input for external NTC thermistor; includes internal bias and signal conditioning. |
| 8 GND | Ground | Reference return for all analog and digital circuits; requires low-impedance PCB connection. |
Key Features
| Feature | Design Value |
|---|---|
| Media Robustness | Qualified against iodine vapor and condensate exposure per automotive EGR requirements. |
| Self-Diagnostic Mode | Automatic power-on test of pressure sensor cells and analog signal path; reports status via SENT diagnostics nibble. |
| Integrated NTC Processing | On-chip linearization and 12-bit digitization of external NTC voltage-no external ADC or lookup table needed. |
| Factory Calibration | Full pressure/temperature transfer function calibrated and stored in on-chip EEPROM; zero user calibration required. |
| SENT Compliance | Fully compliant with SAE J2716 (2010) physical and data link layers, including status nibble and error code reporting. |
Applications
| Turbocharged Engine MAP Sensing | Exhaust Gas Recirculation (EGR) Control |
|---|---|
|
Use Scenario: Real-time monitoring of intake manifold absolute pressure across full engine load and RPM range, including transient boost events. IC Role / Device Role / Timing Role: Primary pressure transducer providing 12-bit digital pressure value via SENT for ECU air mass calculation and torque estimation. Use Value: ±0.77% FSS accuracy ensures stoichiometric air-fuel ratio control under dynamic conditions, reducing emissions and improving fuel economy. |
Use Scenario: Closed-loop feedback for EGR valve positioning in diesel and gasoline engines, requiring simultaneous pressure and intake air temperature. IC Role / Device Role / Timing Role: Dual-sensor hub delivering synchronized 12-bit pressure and NTC-derived temperature data via single SENT wire to ECU. Use Value: Integrated NTC interface eliminates external signal conditioning, reducing BOM count and PCB area while maintaining AEC-Q100 reliability. |
| On-Board Diagnostics (OBD-II) | Industrial Turbocharger Monitoring |
|
Use Scenario: Continuous health monitoring of intake system integrity, detecting leaks or blockages via pressure decay analysis and diagnostic nibble reporting. IC Role / Device Role / Timing Role: Embedded diagnostic agent generating SENT status and error codes (Diag1/Diag2/E²PROM Check) without host processor intervention. Use Value: Self-test capability satisfies OBD-II readiness monitor requirements, enabling faster fault detection and reduced ECU software overhead. |
Use Scenario: Pressure and temperature monitoring in industrial turbochargers for predictive maintenance and performance trending in stationary power generation. IC Role / Device Role / Timing Role: Ruggedized sensing node operating at 150°C ambient, transmitting calibrated digital data over long cable runs via SENT's noise-immune interface. Use Value: Media-robust PG-DSOF-8 package withstands oil mist, condensate, and thermal cycling-eliminating need for protective housings or conformal coating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar absolute pressure + temperature sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPX5700AC6U | Analog output (ratiometric 0.2–4.7 V), no SENT or NTC interface; requires external ADC and signal conditioning. | Lacks integrated diagnostics, digital interface, and external temperature support-suitable only for legacy analog designs. | Select only if existing system lacks SENT-capable MCU or requires analog interface compatibility. |
| BAP120B | SENT-output pressure sensor only; no NTC interface or temperature channel-requires separate temperature sensor and wiring. | Increases system complexity and cost for dual-parameter applications; no shared diagnostics or timing synchronization. | Choose when temperature sensing is handled elsewhere or when footprint constraints preclude dual-function integration. |
Compared with MPX5700AC6U and BAP120B, the KP275XTMA1 uniquely integrates pressure + NTC digitization + SENT + diagnostics in one AEC-Q100-qualified package-reducing component count, PCB space, and validation effort for turbo MAP systems.
Availability
KP275XTMA1 is available at Aetrix Electronics and suitable for turbocharged engine control, EGR systems, and industrial turbocharger monitoring requiring stable component supply, automotive qualification, and media-robust packaging.
Supply support for KP275XTMA1 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 ICs, and sensor solutions, with global manufacturing and automotive qualification infrastructure.
The KP275 belongs to Infineon's dTurboTMAP product line, engineered specifically for high-accuracy, safety-critical manifold pressure sensing in turbocharged powertrains-with emphasis on media resistance, SENT interoperability, and integrated diagnostics.
FAQ
Does KP275XTMA1 require external calibration during system integration?
No. The KP275XTMA1 is fully factory-calibrated across its pressure and temperature ranges, with gain, offset, and NTC linearization parameters stored in on-chip EEPROM. No user calibration or trimming is required-only correct power supply, grounding, and SENT bus termination per the datasheet application circuit.
Can the NTCIN pin accept PTC or RTD sensors?
No. The NTCIN analog front-end is specifically designed and characterized for negative temperature coefficient (NTC) thermistors, including bias current, amplification, and linearization algorithms optimized for NTC curves. PTC or RTD sensors will not produce accurate or supported temperature readings.
What SENT message format does KP275XTMA1 transmit?
The KP275XTMA1 transmits enhanced serial messages per SAE J2716, including a 12-bit pressure value, 12-bit NTC temperature value, status nibble (with Diag1/Diag2 flags), and diagnostic error codes-all within a single SENT frame cycle. Message ID and timing comply with Figure 11 (ESM cycle) in the datasheet.
Is the SPI interface (pins 1–4) usable in end-application firmware?
No. Pins NCS, CLK, SDI, and SDO are reserved exclusively for factory calibration and final test. The datasheet explicitly states they must be left floating in application circuits. These pins are not accessible or functional during normal SENT operation and have no runtime configuration capability.
KP275XTMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Applications:
- -
- Pressure Type:
- -
- Operating Pressure:
- -
- Output Type:
- -
- Output:
- -
- Accuracy:
- -
- Voltage - Supply:
- -
- Port Size:
- -
- Port Style:
- -
- Features:
- -
- Termination Style:
- -
- Maximum Pressure:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
KP275XTMA1 FAQ
1.How can I place an order for KP275XTMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for KP275XTMA1 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 KP275XTMA1 reliable?
The price and inventory of KP275XTMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for KP275XTMA1 is usually 5 days.
3.What payment methods are accepted for KP275XTMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for KP275XTMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for KP275XTMA1?
KP275XTMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your KP275XTMA1 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 KP275XTMA1?
For technical support, including KP275XTMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your KP275XTMA1 requirements.
6.How does Aetrix verify that KP275XTMA1 is sourced from the original manufacturer or authorized distributors?
All KP275XTMA1 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 KP275XTMA1 meets industry standards.
7.What is the process for return or replacement of KP275XTMA1?
All KP275XTMA1 units undergo pre-shipment inspection (PSI). If there is an issue with KP275XTMA1, 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 KP275XTMA1 part is unused and in its original packaging.
Return procedure for KP275XTMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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