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Infineon Technologies KP467XTMA1
- Part No.:
- KP467XTMA1
- Manufacturer:
- Infineon Technologies
- Category:
- Pressure Sensors, Transducers
- Package:
- 8-SMD, Flat Leads, Exposed Pad
- Datasheet:
-
KP467XTMA1.pdf
- Description:
- MEMS GROWTH
- Quantity:
- Payment:
- Shipping:
Inventory:1,640
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Product details
Overview
KP467XTMA1 from Infineon Technologies is a XENSIV™ ISO 26262-compliant digital absolute pressure sensor based on capacitive sensing, delivering ±3.0 kPa accuracy across 45–200 kPa range, 10-/12-/14-bit SPI-output pressure and temperature data, and dedicated low-power monitoring (LPM) mode for battery thermal runaway detection in automotive BMS applications.
For engineers reviewing the KP467XTMA1 datasheet, KP467XTMA1 pinout, KP467XTMA1 application, or KP467XTMA1 equivalent, this device supports ASIL B safety requirements, operates from −40°C to +105°C, integrates on-chip diagnostics and EEPROM programmability, and targets high-reliability automotive and industrial sensing where precision, power efficiency, and functional safety are critical.
Technical Context
The KP467XTMA1 implements a monolithic capacitive MEMS pressure cell with integrated signal conditioning, ADC, temperature sensor, and SPI interface - all housed in a single die. Its architecture supports three operational modes: normal measurement, power-down, and low-power monitoring (LPM), with LPM enabling delta-pressure threshold detection (±4% accuracy) at ultra-low current.
Diagnosis capabilities include sensor-cell self-test, signal-path integrity check, EEPROM verification, and pressure-out-of-range detection - all triggered via SPI commands. The device uses an external clock (CLK) and supports both single-device and daisy-chain SPI configurations with parity error detection and identifier response.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Pressure Range | 45–200 kPa absolute - covers barometric air pressure (BAP), manifold air flow (MAF), and battery compartment monitoring applications. |
| Pressure Accuracy | ±3.0 kPa - enables precise altitude estimation in altimeters and reliable thermal runaway pulse detection in BMS. |
| Resolution | 10-/12-/14-bit configurable - allows trade-off between data granularity and SPI bandwidth in resource-constrained systems. |
| LPM Delta Accuracy | ±4% threshold accuracy - ensures reliable detection of small pressure transients during battery thermal events without false triggers. |
| Operating Temp | −40°C to +105°C - qualified per AEC-Q103-002 for under-hood and battery-pack environments. |
| SPI Interface | 4-wire full-duplex with NCS, CLK, SDI, SDO - supports daisy-chain topology and parity-checked communication for robust ECU integration. |
| Safety Certification | ISO 26262 Safety Element out of Context up to ASIL B - eliminates need for additional safety case development for ASIL B subsystems. |
Pinout & Package
Package: PG-DFN-8-1, green 4.5 mm × 5.1 mm 8-pin DFN with exposed thermal pad (pin 8 = GND).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| NCS (Pin 1) | Active-low chip select | Enables SPI communication only when pulled low; high-impedance state otherwise - essential for multi-device bus sharing. |
| CLK (Pin 2) | Serial clock input | Externally driven clock synchronizes all SPI transfers; supports up to 10 MHz - enables fast sampling in dynamic pressure environments. |
| SDI (Pin 3) | Serial data input | Receives SPI commands (e.g., read pressure, trigger diagnosis, configure LPM thresholds) from host microcontroller. |
| SDO (Pin 4) | Tri-state serial data output | Transmits pressure/temperature values, diagnostic status, and identifier responses - tri-state prevents bus contention in daisy-chain setups. |
| VDD (Pin 5) | Supply voltage | 3.0–5.25 V operation - compatible with standard automotive 3.3 V and 5 V domains; includes undervoltage reset behavior. |
| VPROG (Pin 6) | Programming voltage | Required only during EEPROM write operations (e.g., calibration or LPM configuration); not used in normal operation. |
| WUOUT (Pin 7) | Wake-up output | Open-drain digital output asserting on LPM threshold breach - directly interfaces with MCU wake-up interrupt pins to minimize system power. |
| GND (Pin 8) | Ground reference | Common return path for analog and digital circuits; exposed thermal pad tied to GND improves thermal stability and EMC performance. |
Key Features
| Feature | Design Value |
|---|---|
| Dedicated LPM Mode | Enables continuous sub-10 µA monitoring with configurable delta-pressure thresholds - extends battery life in always-on BMS sensors by >95% vs. periodic polling. |
| On-Chip Diagnostics | Comprehensive self-test suite (sensor cell, signal path, EEPROM, pressure range) triggered via SPI - reduces need for external test hardware and simplifies ASIL B compliance validation. |
| EEPROM Programmability | User-configurable LPM parameters, calibration offsets, and SPI settings stored in non-volatile memory - enables field updates and application-specific tuning without hardware change. |
| ASIL B Ready | Delivered as Safety Element out of Context per ISO 26262 - provides documented fault coverage metrics and safety manual, accelerating functional safety integration into vehicle ECUs. |
| Temperature Compensation | Integrated on-die temperature sensor with 10-/12-/14-bit output - enables real-time thermal drift correction of pressure readings without external components. |
Applications
| Automotive Barometric Air Pressure (BAP) | Automotive Battery Monitoring System (BMS) |
|---|---|
|
Use Scenario: Measuring ambient atmospheric pressure for engine control and altitude compensation in ADAS navigation systems. IC Role / Device Role / Timing Role: Absolute pressure transducer providing calibrated digital output via SPI at 10–100 Hz update rates. Use Value: ±3.0 kPa accuracy enables <10 m altitude resolution; −40°C to +105°C operation ensures reliability across global vehicle deployment zones. |
Use Scenario: Detecting rapid pressure rise inside EV battery enclosures during thermal runaway events. IC Role / Device Role / Timing Role: Low-power delta-pressure monitor triggering WUOUT interrupt upon threshold breach in LPM mode. Use Value: ±4% LPM threshold accuracy minimizes false alarms; sub-10 µA quiescent current enables multi-year battery operation in passive monitoring nodes. |
| Automotive Manifold Air Flow (MAF) | Industrial Altimeter / Weather Station |
|
Use Scenario: Estimating intake air mass flow in gasoline/diesel engines using differential pressure across a venturi or orifice. IC Role / Device Role / Timing Role: High-stability absolute pressure reference supporting ratiometric calculations with upstream/downstream sensors. Use Value: Best-in-class long-term stability and temperature compensation reduce recalibration frequency in emission-critical powertrain applications. |
Use Scenario: Providing elevation data for portable weather stations or drone-based environmental monitoring platforms. IC Role / Device Role / Timing Role: Precision absolute pressure sensor with temperature-compensated output for altitude calculation via ISA model. Use Value: 45–200 kPa range covers sea level to ~15,000 ft; 14-bit resolution yields <0.5 m altitude step size at standard conditions. |
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; no ASIL B certification or LPM mode. | Targeted at consumer drones and wearables; lacks automotive qualification and safety documentation. | Select when ultra-high resolution is prioritized over functional safety and battery-monitoring features. |
| MPXV7025DP (NXP) | Analog output (ratiometric); ±2.5 kPa accuracy; no digital interface, diagnostics, or EEPROM. | Requires external ADC and microcontroller for processing; unsuitable for ASIL B or low-power autonomous monitoring. | Select only for legacy analog designs where cost and simplicity outweigh safety and feature requirements. |
Compared with BMP388 and MPXV7025DP, the KP467XTMA1 uniquely combines ASIL B readiness, LPM-triggered wake-up, and on-chip diagnostics - making it the only drop-in solution for automotive BMS and safety-critical pressure sensing where regulatory compliance and autonomous operation are mandatory.
Availability
KP467XTMA1 is available at Aetrix Electronics and suitable for automotive battery monitoring systems, barometric air pressure sensing, and industrial altimeter designs requiring stable component supply, AEC-Q103 qualification, and ISO 26262 ASIL B support.
Supply support for KP467XTMA1 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 carbide, radar, and XENSIV™ sensing solutions.
The KP467 belongs to Infineon's XENSIV™ pressure sensor product line, engineered specifically for automotive and industrial applications demanding high accuracy, functional safety, and ultra-low-power operation in harsh environments.
FAQ
What is the purpose of the VPROG pin on the KP467XTMA1?
The VPROG pin (Pin 6) supplies programming voltage exclusively during EEPROM write operations - such as storing custom LPM thresholds or calibration coefficients. It is not used during normal pressure measurement or SPI communication. Applying voltage to VPROG outside programming mode may damage the device; Infineon specifies strict timing and voltage limits in the datasheet Section 4.2.5.1.
How does the low-power monitoring (LPM) mode function without waking the host MCU continuously?
LPM mode operates autonomously using an internal interval timer and delta-pressure comparator. When a pressure change exceeds the programmed threshold, the WUOUT pin asserts a digital signal - allowing the host MCU to remain in deep sleep until an actual event occurs. Current consumption in LPM is typically <10 µA, enabling years of operation on coin-cell batteries in battery-monitoring applications.
Can the KP467XTMA1 be used in daisy-chain SPI configurations?
Yes - the KP467XTMA1 supports 4-pin full-duplex daisy-chain operation per Section 4.2.5.11 of the datasheet. In this topology, SDO of one device connects to SDI of the next, with shared CLK and NCS lines. Each device responds only to its assigned address, and parity checking ensures data integrity across the chain - ideal for multi-sensor modules in battery packs or chassis systems.
What diagnostic functions are accessible via SPI command on the KP467XTMA1?
SPI commands enable six distinct diagnostics: LPM diagnosis (sensor-cell integrity), diagnosis reset, pressure-out-of-range detection, Diag1 (signal-path open/short), Diag2 (ADC/processing fault), and EEPROM checksum verification. All return status codes via SDO, allowing host firmware to log faults, initiate recovery, or report safety violations - fulfilling ASIL B diagnostic coverage requirements without external circuitry.
KP467XTMA1 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:
- Industrial Automation, Medical Ventilation
- Pressure Type:
- Absolute
- Operating Pressure:
- 6.52PSI ~ 29.01PSI (45kPa ~ 200kPa)
- Output Type:
- SPI
- Output:
- 14 b
- Accuracy:
- ±0.435PSI (±3kPa)
- Voltage - Supply:
- 3V ~ 5.25V
- Port Size:
- -
- Port Style:
- No Port
- Features:
- -
- Termination Style:
- -
- Maximum Pressure:
- 87.02PSI (600kPa)
- Operating Temperature:
- -40°C ~ 105°C
- Grade:
- Automotive
- Qualification:
- AEC-Q103-002
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-DFN-8-1
KP467XTMA1 FAQ
1.How can I place an order for KP467XTMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for KP467XTMA1 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 KP467XTMA1 reliable?
The price and inventory of KP467XTMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for KP467XTMA1 is usually 5 days.
3.What payment methods are accepted for KP467XTMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for KP467XTMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for KP467XTMA1?
KP467XTMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your KP467XTMA1 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 KP467XTMA1?
For technical support, including KP467XTMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your KP467XTMA1 requirements.
6.How does Aetrix verify that KP467XTMA1 is sourced from the original manufacturer or authorized distributors?
All KP467XTMA1 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 KP467XTMA1 meets industry standards.
7.What is the process for return or replacement of KP467XTMA1?
All KP467XTMA1 units undergo pre-shipment inspection (PSI). If there is an issue with KP467XTMA1, 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 KP467XTMA1 part is unused and in its original packaging.
Return procedure for KP467XTMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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