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Infineon Technologies SP4001101XTMA1
- Part No.:
- SP4001101XTMA1
- Manufacturer:
- Infineon Technologies
- Category:
- Pressure Sensors, Transducers
- Package:
- -
- Datasheet:
-
SP4001101XTMA1.pdf
- Description:
- IC TPMS & INERTIA 24DSOSP
- Quantity:
- Payment:
- Shipping:
Inventory:2,466
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Product details
Overview
SP4001101XTMA1 from Infineon Technologies is an automotive-grade, fully integrated Tire Pressure Monitoring Sensor (TPMS) IC combining a MEMS absolute pressure sensor (0–1100 kPa), z-axis accelerometer (±20 g), temperature sensor (±1.5 °C accuracy), battery voltage monitor, 8051 microcontroller (12 KB Flash), RF transmitter (434/868 MHz FSK/ASK), and LF receiver - all in a single PG-DSOSP-14 package for direct in-tire mounting.
For engineers reviewing the SP4001101XTMA1 datasheet, SP4001101XTMA1 pinout, SP4001101XTMA1 application, or SP4001101XTMA1 equivalent, this device supports tire localization via angular position sensing, enables ultra-low-power wake-up via LF-triggered or interval-based events, and delivers certified RF transmission compliant with ETSI EN 300 220 and FCC Part 15.
Technical Context
The SP4001101XTMA1 integrates a patented Glass-Silicon-Glass MEMS pressure sensor with factory calibration across temperature and supply voltage, enabling direct absolute air pressure output without external compensation. Its embedded 8051 core executes firmware for APS (Angular Position Sensing) and motion-triggered wake-up, while the fractional-N sigma-delta PLL ensures stable RF carrier generation with <±10 ppm frequency accuracy.
Power management is handled by a dedicated wake-up controller supporting multiple event sources: LF telegram detection, programmable interval timer (1 s to 128 min), GPIO edge detection, and thermal shutdown. The RF transmitter supports dual modulation (FSK/ASK), Gaussian filtering, and ASK ramping for spectral compliance, and the LF receiver demodulates 125 kHz carrier and modulated telegrams for vehicle-side activation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Pressure Range | 0–1100 kPa absolute; calibrated output with ±1.5 kPa total error band over −40 °C to +125 °C. |
| z-Axis Acceleration | ±20 g range; 8-bit resolution; used for motion detection, orientation sensing, and wake-on-roll functionality. |
| RF Frequency | 433.92 MHz or 868.35 MHz; supports ETSI/FCC-compliant FSK/ASK modulation with ≤500 kHz occupied bandwidth. |
| LF Receiver | 125 kHz carrier detection + ASK-demodulated telegram reception; enables vehicle-initiated sensor wake-up and ID readout. |
| Supply Voltage | 1.9–3.6 V; includes on-chip voltage monitoring with programmable low-voltage reset threshold (1.75 V typical). |
| Operating Temp | −40 °C to +125 °C ambient; qualified per AEC-Q100 Grade 0 for direct in-tire deployment. |
| Flash Memory | 12 KB on-chip Flash; supports in-system programming and lock-byte protection for firmware security. |
Pinout & Package
SP4001101XTMA1 is housed in a 14-pin PG-DSOSP (Plastic Dual Small Outline Square Package) with exposed thermal pad, optimized for high-reliability automotive environments and conformal coating compatibility. Package dimensions: 5.0 mm × 5.0 mm × 1.0 mm, pitch = 0.5 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Primary power supply input | Connects to 1.9–3.6 V battery; feeds internal LDOs and analog/digital domains. |
| GND | Ground reference | Dual ground pins (GND1, GND2) provide low-impedance return paths for analog and digital sections. |
| RFOUT | RF power amplifier output | Direct connection to matching network and PCB antenna; requires 50 Ω impedance control. |
| LF_IN | LF receiver analog input | High-impedance node for 125 kHz LC tank coupling; internal AFE includes automatic gain control. |
| XTAL1 / XTAL2 | Crystal oscillator terminals | Supports 26 MHz fundamental-mode crystal for system clock; internal load caps reduce external component count. |
| GPIO0–GPIO3 | Configurable digital I/O | Programmable as wake-up inputs, status outputs, or SPI/I²C interface pins; 3.3 V tolerant. |
Key Features
| Feature | Design Value |
|---|---|
| APS (Angular Position Sensing) | Firmware-enabled wheel angle determination using z-axis acceleration data, enabling tire-specific ID assignment without manual labeling. |
| Multi-source Wake-up Controller | Simultaneous support for LF telegram, interval timer, GPIO edge, and thermal events - reduces average current to <1.5 µA in sleep mode. |
| Integrated RF + LF Transceiver Stack | Single-die solution eliminates external RF front-end and LF baseband ICs, reducing BOM count by ≥7 components. |
| Factory-Calibrated Sensors | Pressure, temperature, and acceleration sensors pre-calibrated at wafer level; eliminates system-level calibration during module assembly. |
| AEC-Q100 Grade 0 Qualification | Validated for operation up to +125 °C ambient and 15,000 g shock resistance - meets OEM requirements for direct valve-stem mounting. |
Applications
| Direct-Mount TPMS Valve Module | OEM Vehicle Integration |
|---|---|
|
Use Scenario: Integrated into aluminum or rubber valve stems for OE fitment on passenger cars and light trucks. IC Role / Device Role / Timing Role: Primary sensor SoC performing pressure/temperature/acceleration acquisition, APS computation, and scheduled RF transmission every 15–60 s. Use Value: Enables zero-configuration tire localization and eliminates need for post-installation learning procedures at dealership. |
Use Scenario: Embedded in Tier-1 TPMS modules supplied to automakers including BMW, VW, and Ford. IC Role / Device Role / Timing Role: System controller executing ISO 21848-compliant message framing, LF handshake, and battery health reporting at defined diagnostic intervals. Use Value: Reduces module development time by providing certified RF timing, modulation, and regulatory compliance out-of-box. |
| Aftermarket Retrofit Kit | In-Tire Sensor Assembly |
|
Use Scenario: Used in universal-fit TPMS kits sold through auto parts retailers for legacy vehicle upgrades. IC Role / Device Role / Timing Role: Standalone sensor node with configurable RF channel, modulation, and wake-up sensitivity to match diverse vehicle protocols. Use Value: Supports field-programmable firmware updates via LF interface - avoids hardware redesign for regional band changes. |
Use Scenario: Mounted inside tire cavity with epoxy-sealed housing for commercial fleet monitoring systems. IC Role / Device Role / Timing Role: High-reliability measurement engine operating continuously under centrifugal force (>100 g) and thermal cycling (−40 °C ↔ +100 °C). Use Value: Delivers 10+ year battery life via adaptive wake-up and sub-µA deep-sleep current - validated per SAE J2716 Annex C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TPMS sensor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NXP SLF3710 | Separate pressure + MCU + RF IC architecture; requires external crystal, LNA, and PA matching; no integrated APS firmware. | Lacks on-chip angular position sensing; mandates host MCU for tire localization logic. | Select when modular design, multi-supplier sourcing, or custom RF tuning is required. |
| TE Connectivity MS5839 | MEMS pressure + temperature sensor only; no MCU, RF, LF, or accelerometer; requires external host processor. | Used in hybrid TPMS designs where RF and control are offloaded to separate ASICs. | Select only for cost-sensitive, non-localizing applications where full integration is unnecessary. |
Compared with SLF3710 and MS5839, SP4001101XTMA1 uniquely delivers certified RF transmission, APS firmware, and AEC-Q100 Grade 0 qualification in one die - reducing system BOM, validation effort, and time-to-market for complete TPMS modules.
Availability
SP4001101XTMA1 is available at Aetrix Electronics and suitable for direct-mount TPMS valve modules, OEM vehicle integration, and aftermarket retrofit kits requiring stable component supply, long-lifecycle assurance, and automotive-grade traceability.
Supply support for SP4001101XTMA1 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 centers and ISO/TS 16949-certified manufacturing.
SP4001101XTMA1 belongs to the SP40PLUS family - designed specifically for autonomous, battery-powered TPMS nodes requiring simultaneous pressure, motion, temperature, and RF telemetry in harsh in-tire environments.
FAQ
What is the maximum operating temperature for SP4001101XTMA1 in continuous use?
The SP4001101XTMA1 is qualified per AEC-Q100 Grade 0 with continuous operation supported from −40 °C to +125 °C ambient temperature. Thermal shutdown activates at 150 °C junction temperature, and the device resumes normal operation after cooling below 140 °C hysteresis threshold.
Does SP4001101XTMA1 support both 434 MHz and 868 MHz RF bands simultaneously?
No - SP4001101XTMA1 is factory-configured for either 433.92 MHz or 868.35 MHz operation, not dual-band. The selected frequency is fixed at wafer test and cannot be changed in-field; variant selection is encoded in the top-mark (e.g., "SP4001101" denotes 434 MHz version).
How is angular wheel position determined without external magnets or sensors?
SP4001101XTMA1 uses its integrated z-axis accelerometer to detect gravitational vector rotation during wheel rotation. Firmware processes acceleration peaks and zero-crossings to compute angular position relative to valve stem location - enabling tire identification without added hardware or magnet placement.
Is the LF receiver capable of receiving modulated telegrams from vehicle ECU, or only carrier detection?
The LF receiver supports both functions: it detects unmodulated 125 kHz carrier for wake-up triggering, and demodulates ASK-modulated telegrams (e.g., activation commands, configuration data) using its integrated digital baseband block - enabling bidirectional LF communication for setup and diagnostics.
SP4001101XTMA1 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:
- -
SP4001101XTMA1 FAQ
1.How can I place an order for SP4001101XTMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for SP4001101XTMA1 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 SP4001101XTMA1 reliable?
The price and inventory of SP4001101XTMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SP4001101XTMA1 is usually 5 days.
3.What payment methods are accepted for SP4001101XTMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SP4001101XTMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SP4001101XTMA1?
SP4001101XTMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SP4001101XTMA1 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 SP4001101XTMA1?
For technical support, including SP4001101XTMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SP4001101XTMA1 requirements.
6.How does Aetrix verify that SP4001101XTMA1 is sourced from the original manufacturer or authorized distributors?
All SP4001101XTMA1 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 SP4001101XTMA1 meets industry standards.
7.What is the process for return or replacement of SP4001101XTMA1?
All SP4001101XTMA1 units undergo pre-shipment inspection (PSI). If there is an issue with SP4001101XTMA1, 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 SP4001101XTMA1 part is unused and in its original packaging.
Return procedure for SP4001101XTMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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