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Infineon Technologies KP466PXTMA1
- Part No.:
- KP466PXTMA1
- Manufacturer:
- Infineon Technologies
- Category:
- Pressure Sensors, Transducers
- Package:
- 8-SMD, Flat Leads, Exposed Pad
- Datasheet:
-
KP466PXTMA1.pdf
- Description:
- XENSIV - KP466 HIGHLY SENSITIVE
- Quantity:
- Payment:
- Shipping:
Inventory:2,909
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Product details
Overview
KP466PXTMA1 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 SPI interface supporting 10-/12-/14-bit pressure and temperature outputs - deployed in automotive barometric air pressure (BAP) and manifold airflow (MAF) systems.
For engineers reviewing the KP466PXTMA1 datasheet, KP466PXTMA1 pinout, KP466PXTMA1 application, or KP466PXTMA1 equivalent, key selection criteria include AEC-Q103 qualification, integrated signal path diagnosis, programmable resolution, ultra-low 10 µA power-down current, and DFN-8 package compatibility with automotive PCB layouts.
Technical Context
The KP466PXTMA1 integrates monolithic capacitive pressure sensing cells with on-die temperature sensing and a fully digital signal conditioning chain including ADC, EEPROM, voltage regulator, and SPI controller. Its functional block includes dedicated diagnosis logic triggered via SPI command, enabling real-time validation of sensor cells and signal path integrity.
It supports both single-device and daisy-chain SPI configurations, with configurable power-up and wake-up self-diagnosis, undervoltage reset at 2.1–2.7 V, and EEPROM programmability for calibration data storage - all within a Green 4.5 mm × 5.1 mm DFN-8 package qualified per AEC-Q103-002.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Pressure Range | 60–165 kPa absolute - covers full barometric and intake manifold pressure ranges for automotive BAP/MAF applications. |
| Total Pressure Accuracy | ±1.0 kPa - includes offset, sensitivity, nonlinearity, hysteresis, and thermal effects across −40°C to +125°C. |
| Temperature Range | −40°C to +125°C ambient - validated for under-hood and battery monitoring environments. |
| SPI Resolution | 10-/12-/14-bit selectable - enables trade-off between update rate (up to 1 kHz) and precision for system-level filtering. |
| Power-Down Current | ≤10 µA - extends battery life in always-on vehicle subsystems such as BMS or seat comfort sensors. |
| Diagnosis Capability | On-chip signal path and sensor cell diagnostics - reduces need for external test hardware and supports ASIL-B functional safety decomposition. |
| 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, exposed thermal pad, RoHS-compliant Green molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| NCS | Active-low chip select | Enables SPI communication when pulled low; high-impedance otherwise - allows multi-drop bus sharing. |
| CLK | Serial clock input | Asynchronous master clock (up to 10 MHz); timing-critical for SDO setup/hold compliance. |
| SDI | Serial data input | Accepts SPI commands including read/write, diagnosis trigger, and configuration - no internal pull-up. |
| SDO | Tri-state serial data output | Drives pressure/temperature data and status flags; high-Z when NCS high - enables daisy-chain topology. |
| VDD | Supply voltage | 3.0–5.25 V main power rail; internal regulator supplies analog and digital blocks independently. |
| VPROG | Programming voltage | Required only during EEPROM write cycles (e.g., calibration update); not used in normal operation. |
| NC | No connect | Unbonded pin - must be left floating or tied to GND per layout guidelines; no electrical function. |
| GND | Ground reference | Analog/digital common return; requires low-inductance connection to thermal pad for EMI and accuracy stability. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Diagnosis | Hardware-accelerated SPI-triggered validation of pressure cell capacitance and ADC signal path - eliminates need for external stimulus equipment. |
| Configurable Resolution | Runtime-selectable 10-/12-/14-bit output modes - balances measurement latency (<5 ms settling), noise floor, and MCU processing load. |
| AEC-Q103 Qualification | Validated for automotive pressure sensing per AEC-Q103-002 - includes extended temperature cycling, mechanical shock, and humidity testing. |
| Low-Power Power-Down Mode | 10 µA quiescent current with <5 ms wake-up time - suitable for periodic sampling in battery-powered telematics or cabin pressure control. |
| EEPROM Programmability | User-accessible nonvolatile memory for storing calibration coefficients and device-specific configuration - enables field updates without rework. |
Applications
| Automotive Barometric Air Pressure (BAP) | Automotive Manifold Air Flow (MAF) |
|---|---|
|
Use Scenario: Real-time atmospheric pressure measurement for engine control unit (ECU) altitude compensation and turbocharger boost reference. IC Role / Device Role / Timing Role: Absolute pressure transducer providing calibrated digital output via SPI at 100 Hz update rate. Use Value: ±1.0 kPa accuracy ensures consistent air mass calculation across global operating altitudes up to 5,000 m. |
Use Scenario: Intake manifold pressure sensing in gasoline direct injection (GDI) engines to support closed-loop fuel metering and knock control. IC Role / Device Role / Timing Role: High-stability absolute pressure sensor interfaced directly to ECU's SPI peripheral with <5 ms signal path settling. Use Value: −40°C to +125°C operation maintains accuracy during cold start and wide-load transient conditions. |
| Automotive Battery Monitoring System (BMS) | Industrial Weather Station |
|
Use Scenario: Cabin pressure tracking for electric vehicle battery thermal management, correlating ambient barometric shifts with coolant vapor pressure thresholds. IC Role / Device Role / Timing Role: Low-power absolute pressure node communicating via SPI to BMS microcontroller in 10-second polling intervals. Use Value: 10 µA power-down current enables >10-year battery life in sealed, maintenance-free modules. |
Use Scenario: Outdoor environmental monitoring station measuring local barometric pressure for weather forecasting and climate trend analysis. IC Role / Device Role / Timing Role: Precision pressure sensor mounted in ventilated enclosure, transmitting 14-bit readings hourly via LoRaWAN gateway. Use Value: AEC-Q103 qualification ensures long-term drift stability (<0.1 kPa/year) under UV-exposed outdoor mounting. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar absolute pressure sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BMP388 (Bosch) | ±0.08 hPa (±0.008 kPa) typical accuracy, I²C/SPI, 3.3 V only, no AEC-Q103 qualification | Targeted at consumer drones and wearables; lacks automotive-grade reliability testing and extended temp range | Select for cost-sensitive industrial IoT where ±0.008 kPa resolution outweighs automotive qualification needs |
| MPXV7025DP (NXP) | Analog output (ratiometric), 2.5 kPa full scale, requires external ADC, −40°C to +125°C, AEC-Q100 Grade 0 | Legacy analog pressure interface; higher system BOM cost due to ADC and calibration circuitry | Select when retrofitting legacy analog-signal ECUs without SPI capability or firmware update path |
Compared with BMP388 and MPXV7025DP, the KP466PXTMA1 uniquely combines AEC-Q103 qualification, digital SPI output with programmable resolution, integrated diagnostics, and ultra-low power-down current - making it optimal for new automotive designs requiring functional safety alignment and minimal external components.
Availability
KP466PXTMA1 is available at Aetrix Electronics and suitable for automotive barometric sensing, battery monitoring systems, and industrial weather instrumentation requiring stable component supply, long-lifecycle support, and AEC-Q103-compliant traceability.
Supply support for KP466PXTMA1 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, sensor, and automotive ICs, with leadership in silicon-based pressure and radar sensing solutions.
The KP466 belongs to Infineon's XENSIV™ digital pressure sensor product line, engineered specifically for high-reliability automotive and industrial applications demanding precision, robustness, and embedded diagnostics.
FAQ
What is the maximum SPI clock frequency supported by KP466PXTMA1?
The KP466PXTMA1 supports SPI clock frequencies up to 10 MHz, as specified in Section 4.1.5 (SPI timing) of the datasheet. This allows sub-millisecond readout of pressure and temperature values, enabling real-time engine control loop integration without CPU bottlenecking.
Does KP466PXTMA1 require external calibration during system integration?
No - the KP466PXTMA1 ships with factory-trimmed calibration coefficients stored in on-chip EEPROM. These coefficients compensate for offset, sensitivity, and thermal drift across −40°C to +125°C, eliminating need for end-of-line calibration in production.
How does the integrated diagnosis feature operate without disrupting normal measurements?
Diagnosis is initiated via dedicated SPI command and executes in parallel with normal operation; pressure and temperature conversion continue uninterrupted. The diagnostic result is returned in a separate status register, allowing non-intrusive health verification during runtime.
Is the exposed thermal pad on the DFN-8 package electrically connected?
No - the exposed thermal pad is internally connected only to the die substrate (GND potential) and must be soldered to a PCB ground plane for thermal dissipation and EMI suppression. It is not an additional signal terminal and must not be left floating.
KP466PXTMA1 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:
- SPI
- Output:
- 14 b
- Accuracy:
- ±0.145PSI (±1kPa)
- Voltage - Supply:
- 3V ~ 5.25V
- Port Size:
- -
- Port Style:
- No Port
- Features:
- -
- Termination Style:
- -
- Maximum Pressure:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-DFN-8-1
KP466PXTMA1 FAQ
1.How can I place an order for KP466PXTMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for KP466PXTMA1 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 KP466PXTMA1 reliable?
The price and inventory of KP466PXTMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for KP466PXTMA1 is usually 5 days.
3.What payment methods are accepted for KP466PXTMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for KP466PXTMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for KP466PXTMA1?
KP466PXTMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your KP466PXTMA1 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 KP466PXTMA1?
For technical support, including KP466PXTMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your KP466PXTMA1 requirements.
6.How does Aetrix verify that KP466PXTMA1 is sourced from the original manufacturer or authorized distributors?
All KP466PXTMA1 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 KP466PXTMA1 meets industry standards.
7.What is the process for return or replacement of KP466PXTMA1?
All KP466PXTMA1 units undergo pre-shipment inspection (PSI). If there is an issue with KP466PXTMA1, 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 KP466PXTMA1 part is unused and in its original packaging.
Return procedure for KP466PXTMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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