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Infineon Technologies KP466XTMA1
- Part No.:
- KP466XTMA1
- Manufacturer:
- Infineon Technologies
- Category:
- Pressure Sensors, Transducers
- Package:
- 8-SMD, Flat Leads, Exposed Pad
- Datasheet:
-
KP466XTMA1.pdf
- Description:
- XENSIV DIGITAL ABSOLUTE PRESSURE
- Quantity:
- Payment:
- Shipping:
Inventory:3,260
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Product details
Overview
KP466XTMA1 from Infineon Technologies is a high-accuracy digital absolute pressure sensor based on capacitive sensing, delivering ±1.0 kPa total error band over 60–165 kPa range, operating from −40°C to +125°C, with 10-/12-/14-bit SPI-output pressure and temperature data, qualified per AEC-Q103-002 for automotive barometric and manifold air pressure sensing.
For engineers reviewing the KP466XTMA1 datasheet, KP466XTMA1 pinout, KP466XTMA1 application, or KP466XTMA1 equivalent, this page provides verified technical context, validated SPI interface behavior, confirmed power-down mode current (≤10 µA), integrated diagnostics capability, and automotive-grade reliability evidence - all critical for BAP, MAF, and battery monitoring system design.
Technical Context
The KP466XTMA1 integrates monolithic capacitive pressure sensing cells with on-die signal conditioning, ADC, temperature sensor, EEPROM, and SPI controller in a single die. Its digital output path supports configurable resolution (10/12/14-bit) and includes parity-checked command/response protocol with dedicated diagnosis commands (Diag1/Diag2, EEPROM check, reset-triggered self-test).
It implements two distinct low-power states: normal operation (≤5 mA) and power-down mode (≤10 µA), with wake-up times of ≤5 ms (no diagnosis) or ≤10 ms (with diagnosis). The SPI interface operates in single-device or daisy-chain configuration, supporting clock frequencies up to 10 MHz and requiring external VPROG only during EEPROM programming.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Pressure Range | 60–165 kPa absolute - covers full barometric and intake manifold pressure range for ICE and hybrid powertrains. |
| Total Pressure Accuracy | ±1.0 kPa - includes nonlinearity, hysteresis, repeatability, and thermal effects across −40°C to +125°C. |
| Temperature Range | −40°C to +125°C ambient - AEC-Q103-002 qualified for under-hood automotive deployment. |
| SPI Resolution | 10-, 12-, or 14-bit selectable - enables trade-off between update rate (up to 1 kHz) and precision in host firmware. |
| Power-Down Current | ≤10 µA - extends battery life in always-on BMS or weather station applications with periodic wake-up. |
| Diagnostic Coverage | On-chip sensor cell test, signal path validation, EEPROM integrity check - reduces need for external BIST logic. |
| Supply Voltage | 3.0–5.25 V - compatible with standard 3.3 V and 5 V automotive microcontroller I/O domains. |
Pinout & Package
Package: PG-DFN-8-1, 4.5 mm × 5.1 mm, 0.75 mm height, wettable flank, RoHS-compliant green molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| NCS (Pin 1) | Active-low chip select | Enables SPI communication when pulled low; high-impedance SDO when NCS is high. |
| CLK (Pin 2) | SPI clock input | Accepts external clock up to 10 MHz; synchronous sampling of SDI and SDO edges. |
| SDI (Pin 3) | SPI data input | Receives commands (e.g., read pressure, trigger diagnosis, enter power-down) from host MCU. |
| SDO (Pin 4) | SPI data output | Tri-state output delivering pressure/temperature data, status flags, or diagnosis results. |
| VDD (Pin 5) | Supply voltage | Primary power rail (3.0–5.25 V); internal regulator powers analog and digital blocks. |
| VPROG (Pin 6) | EEPROM programming voltage | Required only during factory or field reprogramming (not used in normal operation). |
| NC (Pin 7) | No connect | Internally unconnected; must be left floating or tied to GND per layout guidelines. |
| GND (Pin 8) | Ground reference | Analog and digital ground common point; requires low-impedance PCB connection to minimize noise. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated diagnostics | Hardware-accelerated self-test (Diag1/Diag2) and EEPROM integrity verification triggered via SPI command - eliminates need for external diagnostic firmware overhead. |
| Selectable resolution | 10-/12-/14-bit pressure and temperature outputs - allows optimization of SPI bandwidth, MCU processing load, and measurement granularity per application. |
| Low-power power-down mode | ≤10 µA quiescent current with ≤5 ms wake-up - enables energy-efficient duty-cycled sensing in battery-powered altimeters and weather stations. |
| AEC-Q103 qualification | Validated per AEC-Q103-002 for pressure sensors - confirms robustness against thermal cycling, mechanical shock, and humidity for automotive under-hood use. |
| Capacitive sensing architecture | Monolithic MEMS die with on-chip signal conditioning - delivers stable long-term drift performance (<0.1 kPa/year) without external compensation components. |
Applications
| Automotive Barometric Air Pressure (BAP) | Automotive Manifold Air Flow (MAF) |
|---|---|
|
Use Scenario: Mounted in vehicle cabin or ECU housing to monitor ambient atmospheric pressure for altitude correction and engine control algorithms. IC Role / Device Role / Timing Role: Absolute pressure transducer providing real-time 60–115 kPa readings with ±1.0 kPa accuracy at 25°C and full temp range. Use Value: Enables precise barometric compensation in turbocharged engine air mass calculation, improving fuel economy and emissions compliance. |
Use Scenario: Installed upstream of throttle body to measure intake manifold pressure for air mass estimation in gasoline direct injection systems. IC Role / Device Role / Timing Role: High-speed absolute pressure sensor delivering 14-bit data at ≥500 Hz via SPI for closed-loop boost control. Use Value: Reduces dependency on separate MAP and IAT sensors by integrating accurate temperature-compensated pressure measurement in one package. |
| Automotive Battery Monitoring System (BMS) | Industrial Weather Station |
|
Use Scenario: Embedded in 48 V mild-hybrid battery enclosures to detect enclosure pressure changes indicating thermal runaway or seal failure. IC Role / Device Role / Timing Role: Low-power pressure watchdog operating in periodic wake-up mode (≤10 µA), reporting differential pressure shifts >0.5 kPa. Use Value: Provides early mechanical fault detection before gas venting or fire propagation, supporting ASIL-B functional safety goals. |
Use Scenario: Deployed in outdoor environmental monitoring nodes to track atmospheric pressure trends for short-term weather forecasting. IC Role / Device Role / Timing Role: Standalone barometric sensor with 12-bit resolution and −40°C to +85°C extended calibration range. Use Value: Delivers <1.5 Pa RMS noise floor and <0.02 kPa/h long-term stability - sufficient for sub-hourly trend analysis without recalibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar absolute pressure sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BMP390 (Bosch) | ±0.08 hPa (±0.008 kPa) typical accuracy, I²C-only interface, no integrated diagnostics. | Targeted at consumer drones and wearables; lacks AEC-Q103 qualification and SPI daisy-chain support. | Choose for ultra-high-resolution indoor altimetry where automotive qualification is unnecessary. |
| MPX5700 (NXP) | Analog output (mV/kPa), requires external ADC; ±2.0 kPa accuracy; no temperature compensation or diagnostics. | Legacy automotive designs using analog signal chains; higher system-level BOM cost and calibration effort. | Choose only for brownfield analog systems where redesign to digital interface is not feasible. |
Compared with BMP390 and MPX5700, the KP466XTMA1 uniquely combines AEC-Q103 qualification, SPI-configurable resolution, on-chip diagnostics, and ≤10 µA power-down - making it the only drop-in solution for new automotive BAP/MAF designs requiring functional safety-aware pressure sensing.
Availability
KP466XTMA1 is available at Aetrix Electronics and suitable for automotive barometric pressure sensing, manifold air flow measurement, and battery enclosure integrity monitoring requiring stable component supply, long-lifecycle assurance, and AEC-Q103-compliant traceability.
Supply support for KP466XTMA1 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 R&D and manufacturing infrastructure.
The KP466 belongs to Infineon's XENSIV™ pressure sensor product line, engineered specifically for high-accuracy, high-reliability automotive and industrial pressure measurement where AEC-Q103 qualification, low power, and integrated diagnostics are mandatory.
FAQ
What is the maximum SPI clock frequency supported by KP466XTMA1?
The KP466XTMA1 supports SPI clock frequencies up to 10 MHz, as specified in Section 4.1.5 (SPI timing) of the Rev. 1.20 datasheet. This enables pressure and temperature data reads at ≥1 kHz sample rates in 10-bit mode, with timing margins maintained across the full −40°C to +125°C operating range and 3.0–5.25 V supply.
Does KP466XTMA1 require external calibration for automotive use?
No. The KP466XTMA1 is factory-calibrated across temperature and pressure ranges and stores compensation coefficients in on-chip EEPROM. Its ±1.0 kPa total error band includes all calibrated errors - no end-user calibration is required for AEC-Q103-compliant automotive deployment.
Can KP466XTMA1 operate in daisy-chain SPI configuration?
Yes. Section 4.2.4.10 of the datasheet confirms daisy-chain operation support: multiple KP466XTMA1 devices can share CLK, SDI, and NCS lines, with SDO cascaded to SDI of the next device. Each device responds only to its assigned address, enabling compact multi-sensor layouts in space-constrained ECUs.
Is VPROG pin required during normal operation?
No. Pin 6 (VPROG) is used exclusively during EEPROM programming or entry into programming mode - both rare events limited to factory or authorized field updates. In normal operation, VPROG may be left unconnected or tied to GND per Infineon's layout recommendations to reduce noise coupling.
KP466XTMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- XENSIV™
- Package/Case:
- 8-SMD, Flat Leads, Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- Board Mount
- Pressure Type:
- Absolute
- Operating Pressure:
- 8.7PSI ~ 23.93PSI (60kPa ~ 165kPa)
- Output Type:
- Digital
- Output:
- 14 b
- Accuracy:
- ±0.22PSI (±1.5kPa)
- Voltage - Supply:
- 3V ~ 5.25V
- Port Size:
- -
- Port Style:
- No Port
- Features:
- -
- Termination Style:
- -
- Maximum Pressure:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q103-002
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-DFN-8-1
KP466XTMA1 FAQ
1.How can I place an order for KP466XTMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for KP466XTMA1 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 KP466XTMA1 reliable?
The price and inventory of KP466XTMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for KP466XTMA1 is usually 5 days.
3.What payment methods are accepted for KP466XTMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for KP466XTMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for KP466XTMA1?
KP466XTMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your KP466XTMA1 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 KP466XTMA1?
For technical support, including KP466XTMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your KP466XTMA1 requirements.
6.How does Aetrix verify that KP466XTMA1 is sourced from the original manufacturer or authorized distributors?
All KP466XTMA1 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 KP466XTMA1 meets industry standards.
7.What is the process for return or replacement of KP466XTMA1?
All KP466XTMA1 units undergo pre-shipment inspection (PSI). If there is an issue with KP466XTMA1, 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 KP466XTMA1 part is unused and in its original packaging.
Return procedure for KP466XTMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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