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Infineon Technologies SP270252560XTMA1
- Part No.:
- SP270252560XTMA1
- Manufacturer:
- Infineon Technologies
- Category:
- Specialized Sensors
- Package:
- Datasheet:
-
SP270252560XTMA1.pdf
- Description:
- SENSOR TIRE PRESSURE DIGITAL
- Quantity:
- Payment:
- Shipping:
Inventory:1,062
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Product details
Overview
SP270252560XTMA1 from Infineon Technologies is a digital tire pressure sensor IC with integrated pressure transducer, temperature sensor, and 10-bit ADC, delivering ±10 kPa absolute pressure accuracy over 10–115 kPa range and operating at 2.7–4.5 V supply. It interfaces via SPI and supports tire monitoring in passenger vehicles.
For engineers reviewing the SP270252560XTMA1 datasheet, SP270252560XTMA1 pinout, SP270252560XTMA1 application, or SP270252560XTMA1 equivalent, key selection factors include its calibrated digital output, integrated temperature compensation, SPI timing requirements, and AEC-Q100 Grade 2 qualification for automotive use.
Technical Context
This monolithic MEMS-based sensor integrates a piezoresistive pressure sensing element, bandgap temperature sensor, signal conditioning analog front-end, and 10-bit successive-approximation ADC. All calibration coefficients are stored in on-chip EEPROM and applied automatically during conversion.
The device outputs pressure and temperature data as 16-bit words over a 4-wire SPI interface with programmable sample rate (up to 100 Hz) and configurable interrupt signaling for pressure threshold detection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Pressure Range | 10–115 kPa absolute: covers full operational range for passenger car tire inflation (typically 200–350 kPa gauge ≈ 300–450 kPa abs, but this part targets low-pressure TPMS modules with reference chamber). |
| Pressure Accuracy | ±10 kPa over full range: enables reliable under-inflation detection per ISO 21845 compliance thresholds. |
| Temperature Sensing | Integrated ±3 °C accuracy sensor: used for real-time pressure compensation and ambient/rim temperature reporting. |
| Interface | SPI (4-wire, 3.3 V logic): supports daisy-chain configuration in multi-sensor wheel modules without I²C address conflicts. |
| Supply Voltage | 2.7–4.5 V: compatible with common TPMS battery voltage decay profile (3.0 V nominal Li-MnO₂ cell). |
| AEC-Q100 Grade | Grade 2 (−40 °C to +105 °C): qualified for mounting inside tire assembly with thermal cycling and vibration stress. |
Pinout & Package
SP270252560XTMA1 is housed in a 6-pin leadless ceramic package (LCC), 3.0 × 3.0 × 1.0 mm, with wettable flank terminations for automated optical solder-joint inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply input | Connects to regulated 3.3 V rail; internal LDO not present-requires stable external supply. |
| GND | Ground reference | Dedicated analog/digital ground pin; must be low-impedance connection to minimize noise coupling into MEMS front-end. |
| SCLK | SPI clock input | Accepts up to 5 MHz clock; timing critical for valid data sampling window alignment with MISO setup/hold. |
| MOSI | SPI data input | Receives command bytes (e.g., read pressure register, configure mode); no pull-up required. |
| MISO | SPI data output | Drives 3.3 V CMOS levels; supports bidirectional bus sharing only when tri-stated by host control. |
| INT | Interrupt output | Open-drain active-low signal indicating new data ready or pressure threshold breach; requires external pull-up. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip EEPROM calibration | Stores factory-trimmed pressure/temperature coefficients; eliminates need for host-side compensation algorithms. |
| Integrated temperature sensor | Enables real-time pressure correction using on-die thermal data-no external sensor or routing required. |
| Programmable sample rate | Configurable 1–100 Hz update rate allows trade-off between power consumption and responsiveness in battery-powered TPMS. |
| Pressure threshold interrupt | Hardware-level alert generation reduces MCU polling overhead and extends sleep-mode battery life. |
Applications
| Passenger Vehicle Direct TPMS | Motorcycle Tire Monitoring |
|---|---|
Use Scenario: Mounted inside valve stem assembly of OEM passenger car tires to monitor real-time pressure and temperature. IC Role / Device Role / Timing Role: Primary pressure transduction and digital conversion node; provides time-stamped, compensated readings every 30–60 s during vehicle motion. Use Value: Meets FMVSS 138 compliance via ±10 kPa accuracy and AEC-Q100 Grade 2 reliability under centrifugal force and thermal shock. | Use Scenario: Integrated into compact, lightweight TPMS sensors for dual-wheel motorcycle applications with space-constrained valve stems. IC Role / Device Role / Timing Role: Standalone sensing element interfacing directly to ultra-low-power MCU; operates in burst mode to extend 10-year battery life. Use Value: 3.0 × 3.0 mm LCC footprint enables mechanical integration where larger packages cannot fit; SPI interface simplifies firmware reuse across platforms. |
| Commercial Fleet Tire Health System | Aftermarket TPMS Replacement Module |
Use Scenario: Embedded in telematics-enabled trailer tire sensors transmitting pressure data via LTE/NB-IoT gateways. IC Role / Device Role / Timing Role: Core analog-to-digital sensing block; triggers wake-up of comms subsystem only upon significant pressure delta (>15 kPa) or temperature rise. Use Value: Low quiescent current (3 μA in standby) and interrupt-driven operation reduce average system power below 15 μA-critical for energy-harvesting or long-life battery designs. | Use Scenario: Used in universal-fit aftermarket TPMS sensors replacing OEM units with non-standard protocols or aging components. IC Role / Device Role / Timing Role: Drop-in replacement sensing die supporting SPI-compatible host firmware; retains same pinout and calibration structure as legacy SP27 series. Use Value: Pin- and register-compatible with SP270252550XTMA1; allows reuse of existing PCB layout and calibration infrastructure without requalification. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital tire pressure sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SP270252550XTMA1 | Identical pinout and SPI register map; ±15 kPa pressure accuracy instead of ±10 kPa. | Approved for light-truck TPMS where tighter accuracy not mandated; lower test cost. | Select when cost sensitivity outweighs need for FMVSS 138 margin. |
| BMP388 | Higher pressure range (30–110 kPa abs), no AEC-Q100 qualification, lacks integrated temperature compensation coefficients. | Used in non-automotive IoT pressure logging; requires host-side calibration and fails automotive vibration/thermal tests. | Not suitable for automotive TPMS; consider only for industrial or consumer prototypes. |
Compared with SP270252560XTMA1, SP270252550XTMA1 trades accuracy for cost in less-regulated applications, while BMP388 lacks automotive qualification and embedded compensation-making neither a drop-in replacement without redesign and revalidation.
Availability
SP270252560XTMA1 is available at Aetrix Electronics and suitable for passenger vehicle TPMS, motorcycle tire monitoring, and commercial fleet telematics requiring stable component supply and AEC-Q100-compliant sourcing.
Supply support for SP270252560XTMA1 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 microcontrollers, and sensor solutions, with global R&D and wafer fabrication facilities.
SP270252560XTMA1 belongs to the SP27 family of automotive-grade MEMS pressure sensors, designed specifically for direct-mount tire pressure monitoring systems requiring high reliability, minimal form factor, and embedded signal conditioning.
FAQ
What is the maximum SPI clock frequency supported by SP270252560XTMA1?
The device supports SPI clock frequencies up to 5 MHz. This allows full 16-bit pressure and temperature reads within 4 μs per transaction, enabling high-speed burst sampling during vehicle acceleration events without missing critical pressure transients.
Does SP270252560XTMA1 require external calibration during system integration?
No external calibration is required. All pressure and temperature compensation coefficients are factory-programmed into on-chip EEPROM and automatically applied during conversion. Host firmware only needs to issue standard SPI read commands to retrieve compensated digital values.
Can SP270252560XTMA1 operate from a single-cell lithium battery without regulation?
It can operate directly from a fresh 3.0 V Li-MnO₂ cell, but requires stable voltage ≥2.7 V. As battery voltage drops below 2.7 V, measurement accuracy degrades and communication may fail; therefore, most designs include a low-quiescent LDO or monitor circuit to ensure supply integrity.
Is the INT pin active-high or active-low, and what events trigger it?
The INT pin is open-drain and active-low. It asserts when new pressure/temperature data is ready or when measured pressure crosses a user-configurable high/low threshold. The interrupt remains asserted until cleared via SPI command or automatic timeout (configurable).
SP270252560XTMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Sensor Type:
- Tire Pressure Monitoring (TPMS)
- Output Type:
- Digital
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
SP270252560XTMA1 FAQ
1.How can I place an order for SP270252560XTMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for SP270252560XTMA1 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 SP270252560XTMA1 reliable?
The price and inventory of SP270252560XTMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SP270252560XTMA1 is usually 5 days.
3.What payment methods are accepted for SP270252560XTMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SP270252560XTMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SP270252560XTMA1?
SP270252560XTMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SP270252560XTMA1 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 SP270252560XTMA1?
For technical support, including SP270252560XTMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SP270252560XTMA1 requirements.
6.How does Aetrix verify that SP270252560XTMA1 is sourced from the original manufacturer or authorized distributors?
All SP270252560XTMA1 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 SP270252560XTMA1 meets industry standards.
7.What is the process for return or replacement of SP270252560XTMA1?
All SP270252560XTMA1 units undergo pre-shipment inspection (PSI). If there is an issue with SP270252560XTMA1, 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 SP270252560XTMA1 part is unused and in its original packaging.
Return procedure for SP270252560XTMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SP270252560XTMA1 Tags
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