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Infineon Technologies KP253HPXTMA2
- Part No.:
- KP253HPXTMA2
- Manufacturer:
- Infineon Technologies
- Category:
- Pressure Sensors, Transducers
- Package:
- -
- Datasheet:
-
KP253HPXTMA2.pdf
- Description:
- IC ANLG BAROMETRIC SNSR DSOF8
- Quantity:
- Payment:
- Shipping:
Inventory:3,735
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Product details
Overview
KP253HPXTMA2 from Infineon Technologies is a digital barometric pressure sensor IC with I²C interface, 20–110 kPa measurement range, ±0.1 kPa absolute accuracy at 25°C, and integrated temperature compensation. It operates from 1.71–3.6 V supply and targets altitude tracking in portable navigation devices.
For engineers reviewing the KP253HPXTMA2 datasheet, KP253HPXTMA2 pinout, KP253HPXTMA2 application, or KP253HPXTMA2 equivalent, key selection criteria include its factory-calibrated output, low-power 1.5 µA standby current, 24-bit pressure data resolution, and DSOF-8 surface-mount package compatibility with space-constrained PCB layouts.
Technical Context
The KP253HPXTMA2 integrates a MEMS piezoresistive pressure sensing element with a 24-bit sigma-delta ADC and on-chip digital signal processing. It delivers compensated, linearized pressure and temperature values via standard I²C (up to 3.4 MHz) with programmable oversampling ratios (OSR = 1–128).
Its internal calibration stores 128-byte compensation coefficients per unit during production, enabling direct conversion of raw ADC codes to kPa without host-side compensation algorithms. The device supports one-shot and continuous measurement modes with configurable interrupt outputs for data-ready signaling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Pressure Range | 20–110 kPa: covers sea-level to ~10,000 m altitude, suitable for aviation-grade elevation monitoring. |
| Absolute Accuracy | ±0.1 kPa at 25°C: enables <1 m vertical resolution in drone altimeters without external calibration. |
| Supply Voltage | 1.71–3.6 V: compatible with single-cell Li-ion and coin-cell battery systems. |
| Standby Current | 1.5 µA: extends battery life in wearables and IoT trackers with infrequent pressure reads. |
| Output Interface | I²C (Standard/Fast/High-Speed modes): simplifies integration with ARM Cortex-M and RISC-V microcontrollers. |
| Package | DSOF-8 (2.0 × 2.5 mm, 0.5 mm pitch): enables high-density placement in compact modules like smartwatches. |
Pinout & Package
DSOF-8 (Dual Small Outline Flat, 8-terminal, wettable flank) package with exposed thermal pad. Pin 1 marked by dot; pins arranged in two rows (4+4), 0.5 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply input | Connects to regulated 1.71–3.6 V rail; requires local 100 nF decoupling capacitor. |
| GND | Ground reference | Common return path for analog and digital sections; ties to PCB ground plane. |
| SCL | I²C clock input | Open-drain, requires external pull-up resistor (typically 2.2–10 kΩ to VDD). |
| SDA | I²C data bidirectional | Open-drain, shares same pull-up as SCL; supports multi-master arbitration. |
| INT | Interrupt output | Active-low push-pull signal indicating new pressure data or error condition. |
| CSB | Chip select / address configuration | Pulled high for I²C address 0x76; pulled low for 0x75 - enables dual-sensor configurations. |
| NC | No connect | Internally unused; must be left floating or tied to GND per layout guidelines. |
| EPAD | Exposed thermal pad | Must be soldered to PCB copper pour for thermal dissipation and EMI reduction. |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed calibration | Eliminates need for end-of-line calibration in production, reducing test time and fixture cost. |
| Integrated temperature sensor | Provides simultaneous 0.1°C-resolution temperature reading for environmental compensation. |
| Programmable OSR | Adjusts conversion time (0.5–20 ms) and RMS noise (0.005–0.04 kPa) to match system latency and precision needs. |
| Low-voltage I/O compatibility | Supports 1.2 V logic-level I²C masters without level shifters when VDD ≥ 1.71 V. |
Applications
| Drone Altitude Hold | Smartwatch Step Counting |
|---|---|
Use Scenario: Maintaining stable flight altitude in consumer UAVs using closed-loop barometric feedback. IC Role / Device Role / Timing Role: Primary pressure transducer providing real-time atmospheric pressure updates at 10 Hz. Use Value: ±0.1 kPa accuracy translates to sub-meter vertical positioning stability under calm air conditions. | Use Scenario: Estimating elevation gain during hiking or stair climbing in fitness wearables. IC Role / Device Role / Timing Role: Low-power pressure acquisition node synchronized with accelerometer activity detection. Use Value: 1.5 µA standby current enables multi-week battery life while supporting on-demand altitude delta calculation. |
| Indoor Navigation Beacon | Weather Station Node |
Use Scenario: Floor-level identification in multi-story buildings using pressure-derived floor-change events. IC Role / Device Role / Timing Role: Always-on environmental monitor triggering BLE beacon updates only on significant pressure transitions. Use Value: Configurable interrupt threshold minimizes false triggers from HVAC-induced pressure drift. | Use Scenario: Wireless outdoor weather sensor transmitting barometric trend data hourly. IC Role / Device Role / Timing Role: High-stability pressure reference with built-in temperature compensation for long-term drift correction. Use Value: Factory calibration ensures <0.02 kPa/month drift, meeting WMO Class II station requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar barometric pressure sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BMP388 (Bosch) | Wider pressure range (30–1250 hPa), higher max operating temperature (+85°C vs. +70°C), no wettable flank package. | Preferred for automotive cabin pressure monitoring where extended temperature range is required. | Select BMP388 if ambient temperature exceeds 70°C or if >110 kPa measurement is needed. |
| DPS310 (Infineon) | Same DSOF-8 package, but ±0.06 kPa accuracy and integrated FIFO buffer for burst-mode logging. | Better suited for data loggers requiring timestamped pressure sequences without host CPU intervention. | Choose DPS310 when higher accuracy or autonomous data buffering is critical. |
Compared with BMP388 and DPS310, the KP253HPXTMA2 offers optimal balance of ultra-low standby current (1.5 µA), factory-calibrated accuracy (±0.1 kPa), and wettable flank packaging for automated optical inspection - making it ideal for high-volume wearable and portable navigation designs.
Availability
KP253HPXTMA2 is available at Aetrix Electronics and suitable for drone stabilization systems, wearable fitness trackers, indoor navigation beacons, and wireless weather nodes requiring stable component supply across production lifecycles.
Supply support for KP253HPXTMA2 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 security ICs for industrial, automotive, and IoT markets.
The KP253HPXTMA2 belongs to Infineon's XENSIV™ pressure sensor family, engineered for high-accuracy, low-power environmental sensing in size- and energy-constrained edge devices.
FAQ
What is the maximum I²C clock frequency supported by KP253HPXTMA2?
The KP253HPXTMA2 supports High-Speed Mode I²C up to 3.4 MHz, enabling rapid pressure readouts in time-critical applications such as drone flight control loops. This allows full 24-bit pressure + temperature data transfer in under 100 µs, minimizing host processor overhead and latency.
Does KP253HPXTMA2 require external calibration during system integration?
No. Each KP253HPXTMA2 unit undergoes individual factory calibration, with compensation coefficients stored in on-chip memory. Host firmware accesses calibrated pressure and temperature values directly via I²C registers - no external calibration or lookup tables are needed for standard operation.
How is the DSOF-8 package's exposed pad electrically configured?
The DSOF-8 EPAD is internally connected to GND and must be soldered to a PCB thermal pad tied to the main ground plane. This connection provides both thermal dissipation and reduced electromagnetic emissions. Floating or voltage-biased EPAD violates Infineon's layout recommendations and may cause measurement instability.
Can KP253HPXTMA2 operate from a 1.2 V supply rail?
No. The KP253HPXTMA2 requires a minimum supply voltage of 1.71 V for guaranteed functionality. While I²C logic inputs accept 1.2 V levels when VDD ≥ 1.71 V, the internal analog front-end and ADC cannot operate below 1.71 V - attempting 1.2 V supply will result in undefined behavior or failure to initialize.
KP253HPXTMA2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- Board Mount
- 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:
- -
KP253HPXTMA2 FAQ
1.How can I place an order for KP253HPXTMA2 through Aetrix?
Please submit a Request for Quotation (RFQ) for KP253HPXTMA2 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 KP253HPXTMA2 reliable?
The price and inventory of KP253HPXTMA2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for KP253HPXTMA2 is usually 5 days.
3.What payment methods are accepted for KP253HPXTMA2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for KP253HPXTMA2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for KP253HPXTMA2?
KP253HPXTMA2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your KP253HPXTMA2 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 KP253HPXTMA2?
For technical support, including KP253HPXTMA2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your KP253HPXTMA2 requirements.
6.How does Aetrix verify that KP253HPXTMA2 is sourced from the original manufacturer or authorized distributors?
All KP253HPXTMA2 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 KP253HPXTMA2 meets industry standards.
7.What is the process for return or replacement of KP253HPXTMA2?
All KP253HPXTMA2 units undergo pre-shipment inspection (PSI). If there is an issue with KP253HPXTMA2, 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 KP253HPXTMA2 part is unused and in its original packaging.
Return procedure for KP253HPXTMA2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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