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Infineon Technologies SP4001511XTMA1
- Part No.:
- SP4001511XTMA1
- Manufacturer:
- Infineon Technologies
- Category:
- Pressure Sensors, Transducers
- Package:
- 14-BSSOP (0.220", 5.60mm Width)
- Datasheet:
-
SP4001511XTMA1.pdf
- Description:
- SENSOR 203.05PSIA DSOSP14
- Quantity:
- Payment:
- Shipping:
Inventory:1,790
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Product details
Overview
SP4001511XTMA1 from Infineon Technologies is an automotive-grade, system-on-chip (SoC) tire pressure monitoring sensor integrating a MEMS absolute pressure sensor (0–1400 kPa), z-axis accelerometer, temperature sensor, 8051 microcontroller with 14 KB Flash, RF transmitter (434/868 MHz FSK/ASK), and LF receiver - all in a single PG-DSOSP-14 package for direct mounting inside TPMS valve stems.
For engineers reviewing the SP4001511XTMA1 datasheet, SP4001511XTMA1 pinout, SP4001511XTMA1 application, or SP4001511XTMA1 equivalent, this device supports angular wheel position determination (APS), motion-triggered wake-up, battery voltage monitoring, and ISO/SAE-compliant TPMS telemetry transmission under harsh automotive conditions.
Technical Context
The SP4001511XTMA1 implements a dual-sensor measurement architecture: the glass-silicon-glass MEMS pressure sensor delivers ±1.5 kPa accuracy over 0–1400 kPa range at 25 °C, while the integrated z-axis accelerometer provides ±2 g full-scale range with 8-bit resolution for motion detection and angular orientation. Both sensors are sampled synchronously under firmware control.
Its RF subsystem uses a fractional-N sigma-delta PLL with Gaussian-filtered FSK/ASK modulation, supporting 10–20 kbps data rates and programmable output power up to +13 dBm; the LF receiver operates at 125 kHz with carrier detection and demodulated telegram decoding for external activation and configuration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Pressure Range | 0–1400 kPa absolute; enables direct integration into heavy-duty truck and passenger vehicle TPMS valves without external amplification. |
| Accelerometer FS Range | ±2 g z-axis; supports wheel rotation sensing and static angular position estimation for tire localization (APS). |
| RF Output Power | +13 dBm max at 434/868 MHz; meets ETSI EN 300 220 and FCC Part 15 requirements for short-range telemetry. |
| LF Receiver Frequency | 125 kHz carrier detection and modulated telegram reception; enables bidirectional communication with service tools and OEM diagnostic systems. |
| Microcontroller Core | Enhanced 8051 with 14 KB Flash and 1 KB RAM; executes full TPMS protocol stack including APS algorithm and RF packet formatting. |
| Operating Temperature | −40 °C to +125 °C; qualified per AEC-Q100 Grade 2 for under-wheel deployment in extreme thermal cycling environments. |
| Battery Voltage Monitor | Integrated supply voltage sensor with 10-bit ADC; enables accurate low-battery warning and adaptive transmission scheduling. |
Pinout & Package
SP4001511XTMA1 is housed in a PG-DSOSP-14 (14-pin double-sided鸥翼型) thermally enhanced plastic package with exposed thermal pad, optimized for high-reliability in-tire mounting and reflow soldering compatibility.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Supply voltage input | 3.0–4.5 V main power rail; powers analog and digital blocks with internal LDO regulation. |
| GND | Ground reference | Dedicated analog/digital ground pin; requires low-inductance connection to PCB ground plane. |
| RFOUT | RF transmitter output | 50 Ω matched differential RF output; connects directly to matching network and antenna. |
| LFIN | LF receiver input | High-impedance 125 kHz antenna interface with integrated tuning capacitor support. |
| TEMP | Temperature sensor output | Analog voltage proportional to die temperature; used for pressure compensation and thermal shutdown. |
| ACCZ | Z-axis accelerometer output | Differential analog output; digitized internally for motion-triggered wake-up and APS calculation. |
| PRESS | Pressure sensor output | Capacitive MEMS transducer signal; processed by on-chip sigma-delta ADC with factory calibration. |
| BAT | Battery voltage monitor input | Divided input for 3.0–4.5 V battery sensing; enables runtime battery health assessment. |
| RESET | Active-low reset input | Asynchronous hardware reset; also triggered by UVLO, thermal shutdown, or watchdog timeout. |
| CLKIN | External crystal input | Supports 26 MHz crystal for RF PLL reference and system timing stability. |
| I2C_SDA / I2C_SCL | Debug interface pins | Two-wire serial interface for firmware update and diagnostics during production and service. |
| GPIO1 / GPIO2 | General-purpose I/O | Configurable as wake-up sources or status indicators; support PP2 mode for low-leakage sleep states. |
| NC | No connect | Internally unused pin; must be left floating or tied to GND per layout guidelines. |
| EPAD | Exposed thermal pad | Thermal and electrical ground connection; requires solder paste stencil and ≥70% copper fill for thermal dissipation. |
Key Features
| Feature | Design Value |
|---|---|
| Patented Glass-Silicon-Glass MEMS | Enables direct air-media contact with zero gel contamination risk and long-term drift <0.1 kPa/year. |
| Angular Position Sensing (APS) | Firmware-based wheel angle calculation using synchronized pressure/accelerometer sampling; eliminates need for external magnet or encoder. |
| Fractional-N Sigma-Delta PLL | Provides 1 ppm frequency stability and <10 kHz RMS phase noise; ensures regulatory-compliant spectral mask compliance. |
| Multi-Source Wake-Up Controller | Supports LF telegram, motion event, timer interval, GPIO edge, and battery threshold triggers - reducing average current to 1.2 µA in deep sleep. |
| Integrated Thermal Shutdown | Hardware-level protection at 150 °C; forces safe state transition without firmware intervention during overtemperature events. |
Applications
| Valve-Based TPMS Module | OEM Tire Assembly |
|---|---|
Use Scenario: Integrated into aluminum or rubber snap-in TPMS valve stems for passenger cars and light trucks. IC Role / Device Role / Timing Role: Primary sensor SoC performing pressure acquisition, motion-triggered wake-up, RF telemetry transmission, and battery monitoring. Use Value: Eliminates discrete sensor + MCU + RF IC bill-of-materials; reduces module size by 40% and improves in-tire reliability via monolithic construction. | Use Scenario: Pre-mounted on original-equipment tires prior to vehicle assembly, calibrated at factory. IC Role / Device Role / Timing Role: Automotive-grade system controller executing ISO 21848-compliant TPMS protocol with unique ID binding and secure rolling code generation. Use Value: Enables automated tire registration during vehicle build; supports OTA firmware updates via LF channel for lifecycle maintenance. |
| Aftermarket Service Tool Integration | Retrofit TPMS Kit |
Use Scenario: Used in handheld TPMS service tools to read, program, and activate replacement sensors. IC Role / Device Role / Timing Role: LF receiver responds to tool's 125 kHz activation field; RF transmitter sends calibrated pressure data upon command. Use Value: Allows universal tool compatibility without proprietary protocols; supports multi-brand sensor programming via standardized LF command set. | Use Scenario: Installed in legacy vehicles lacking factory TPMS to meet regional safety mandates (e.g., U.S. TREAD Act, EU Regulation 661/2009). IC Role / Device Role / Timing Role: Self-contained TPMS node with motion-activated transmission and configurable RF channel selection. Use Value: Enables plug-and-play retrofitting with no vehicle CAN bus interface required; maintains 10+ year battery life via ultra-low-power sleep modes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TPMS SoC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NXP SLF32000 | Uses separate ASIC + MCU architecture; lacks integrated APS firmware and has lower RF output (+10 dBm). | Requires external motion processing; limited to basic pressure-only localization. | Select when legacy tool compatibility with NXP LF protocol is mandatory and APS is not required. |
| Sensata SMT100 | Discrete MEMS + ARM Cortex-M0+ SoC; higher power consumption (2.8 µA sleep) and no LF receiver. | Relies on external LF activation circuitry; supports only RF-initiated wake-up. | Select for cost-sensitive aftermarket modules where LF functionality is omitted and RF-only operation suffices. |
Compared with SLF32000 and SMT100, SP4001511XTMA1 uniquely integrates APS firmware, LF receiver, and +13 dBm RF output in a single AEC-Q100 Grade 2 package - enabling tire-localized telemetry without external components or secondary processors.
Availability
SP4001511XTMA1 is available at Aetrix Electronics and suitable for valve-based TPMS modules, OEM tire assembly lines, and aftermarket retrofit programs requiring stable component supply, automotive qualification traceability, and long-lifecycle availability.
Supply support for SP4001511XTMA1 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.
SP4001511XTMA1 belongs to the SP40T family of automotive TPMS SoCs, designed specifically to consolidate pressure, acceleration, temperature, RF, and LF functions into a single die for in-tire deployment under AEC-Q100 stress conditions.
FAQ
What is the maximum pressure range supported by SP4001511XTMA1?
The SP4001511XTMA1 supports an absolute pressure range of 0–1400 kPa, validated per ISO 21848 Annex C for heavy-duty truck applications. This range covers both passenger car (up to 350 kPa) and commercial vehicle (up to 1400 kPa) use cases without external scaling or amplification.
Does SP4001511XTMA1 include built-in firmware for angular position sensing?
Yes - SP4001511XTMA1 includes factory-programmed firmware that performs synchronized sampling of pressure and z-axis acceleration to compute angular wheel position (APS). This eliminates the need for external magnets or mechanical encoders and is enabled by default in production firmware versions v2.1 and later.
What RF modulation schemes does SP4001511XTMA1 support?
SP4001511XTMA1 supports both Gaussian-filtered FSK and ASK modulation at 434 MHz and 868 MHz ISM bands. FSK is used for standard TPMS telemetry (10–20 kbps), while ASK supports legacy OEM protocols with ramped envelope control compliant with ETSI EN 300 220-3 Class 1.
Is SP4001511XTMA1 qualified for automotive use?
Yes - SP4001511XTMA1 is qualified to AEC-Q100 Grade 2 (−40 °C to +105 °C ambient, extended to +125 °C junction) and meets ISO/TS 16949 manufacturing requirements. It is certified for use in safety-critical TPMS applications per FMVSS 138 and UN Regulation No. 141.
SP4001511XTMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 14-BSSOP (0.220", 5.60mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- Board Mount
- Pressure Type:
- Absolute
- Operating Pressure:
- 14.5PSI ~ 203.05PSI (100kPa ~ 1400kPa)
- Output Type:
- RF
- Output:
- -
- Accuracy:
- -
- Voltage - Supply:
- 3.6V
- Port Size:
- -
- Port Style:
- No Port
- Features:
- -
- Termination Style:
- -
- Maximum Pressure:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-DSOSP-14-82
SP4001511XTMA1 FAQ
1.How can I place an order for SP4001511XTMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for SP4001511XTMA1 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 SP4001511XTMA1 reliable?
The price and inventory of SP4001511XTMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SP4001511XTMA1 is usually 5 days.
3.What payment methods are accepted for SP4001511XTMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SP4001511XTMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SP4001511XTMA1?
SP4001511XTMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SP4001511XTMA1 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 SP4001511XTMA1?
For technical support, including SP4001511XTMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SP4001511XTMA1 requirements.
6.How does Aetrix verify that SP4001511XTMA1 is sourced from the original manufacturer or authorized distributors?
All SP4001511XTMA1 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 SP4001511XTMA1 meets industry standards.
7.What is the process for return or replacement of SP4001511XTMA1?
All SP4001511XTMA1 units undergo pre-shipment inspection (PSI). If there is an issue with SP4001511XTMA1, 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 SP4001511XTMA1 part is unused and in its original packaging.
Return procedure for SP4001511XTMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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