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Infineon Technologies KP276A1201XTMA1
- Part No.:
- KP276A1201XTMA1
- Manufacturer:
- Infineon Technologies
- Category:
- Pressure Sensors, Transducers
- Package:
- 8-SMD Module
- Datasheet:
-
KP276A1201XTMA1.pdf
- Description:
- SENSOR 58.02PSIA 12BIT DSOF8
- Quantity:
- Payment:
- Shipping:
Inventory:390
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Product details
Overview
KP276A1201 from Infineon is a digital absolute pressure sensor IC based on capacitive MEMS technology with integrated BiCMOS signal conditioning, delivering 12-bit pressure and temperature digitized outputs via SENT protocol (SAE J2716 rev. 2016), ±0.77% FSS accuracy, and support for external NTC temperature sensing - designed for engine manifold air pressure (MAP) measurement in automotive powertrain systems.
For engineers reviewing the KP276A1201 datasheet, KP276A1201 pinout, KP276A1201 application, or KP276A1201 equivalent, this page provides verified technical context, SENT interface timing details, diagnostic mode behavior, NTC linearization parameters, and validated automotive-grade packaging and qualification data per AEC-Q100.
Technical Context
The KP276A1201 implements a monolithic capacitive pressure transducer with on-chip ADC, digital signal processing (iSM core), EEPROM-based calibration storage, and dual-channel SENT output - one fast channel for real-time 12-bit pressure (0–400 kPa) and 12-bit NTC-derived temperature (−40°C to +170°C), and one slow channel for diagnostic status and serial messages.
Its functional block includes dedicated NTC buffer amplifier and conditioning circuitry, voltage regulator for analog/digital domains (VDDA/VDDD), and hardware-triggered self-diagnostic mode activated at power-on, covering sensor cell integrity and signal path validation without host intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Pressure Range | 0–400 kPa absolute; supports full MAP range for gasoline and diesel engines including turbocharged applications. |
| Pressure Accuracy | ±0.77% Full Scale Span (FSS); calibrated across −40°C to +150°C ambient, enabling high-fidelity air mass calculation. |
| Output Resolution | Real 12-bit pressure and 12-bit temperature; 4096 discrete levels per channel, no interpolation required. |
| Interface Protocol | SENT v2016 (SAE J2716); fixed 3.0 µs clock tick, 6-data-nibble frame, enhanced serial message format with status nibble. |
| External Temp Sensing | NTC interface with linearized transfer function (ST = 8.0 LSB/°C, offsT = 585.2 LSB); supports common automotive NTCs (e.g., 10 kΩ @ 25°C). |
| Diagnostic Coverage | On-chip self-test at power-up: sensor cell continuity, ADC functionality, EEPROM checksum, and signal path integrity verification. |
| Qualification | AEC-Q100 Grade 0 (−40°C to +175°C junction); qualified for under-hood automotive deployment with media robustness against oil, fuel, and condensate. |
Pinout & Package
Package: PG-DSOF-8-162 - green, lead-free, surface-mount SOIC-8 variant with exposed thermal pad; optimized for high-reliability automotive PCB assembly and thermal dissipation in confined engine bay spaces.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 NCS | Not-Chip-Select (active-low) | Enables SPI communication only during factory calibration/test; must be left floating in end application. |
| 2 CLK | Serial Clock Input | Provides clock for SPI interface; unused in normal SENT operation; floating recommended. |
| 3 SDI | Serial Data In | Accepts configuration commands during test; no runtime function in SENT mode; leave unconnected. |
| 4 SDO | Serial Data Out | Tri-state SPI output; inactive during SENT operation; floating per design recommendation. |
| 5 VDD | Supply Voltage | 3.3 V nominal (2.7–3.6 V range); powers analog and digital blocks; requires local decoupling. |
| 6 SENTOUT | SENT Output Signal | Open-drain digital output driving SENT waveform; connects directly to microcontroller SENT input pin. |
| 7 NTCIN | NTC Sensor Interface | Analog input for external NTC; internal bias current and ADC reference enable ratiometric temperature digitization. |
| 8 GND | Ground Reference | Analog/digital common ground; must be low-impedance connection to minimize noise coupling into pressure sensing path. |
Key Features
| Feature | Design Value |
|---|---|
| Capacitive MEMS Sensing Element | Monolithic silicon diaphragm with on-chip electrode structure; stable over lifetime, immune to mechanical hysteresis. |
| SENT Protocol Compliance | Full SAE J2716 rev. 2016 implementation including sync pulse, status nibble, and enhanced serial message format for diagnostics. |
| Integrated Diagnostic Mode | Automatic power-on self-test verifying sensor cell capacitance, ADC linearity, EEPROM validity, and SENT output driver functionality. |
| NTC Linearization Engine | Hardware-accelerated polynomial compensation using stored coefficients (ST = 8.0 LSB/°C, offsT = 585.2 LSB) for direct °C output. |
| Media-Robust Housing | PG-DSOF-8 package with chemically resistant mold compound; qualified for exposure to engine oil, gasoline vapor, and condensate. |
Applications
| Engine Manifold Pressure Monitoring | Turbocharger Boost Control |
|---|---|
|
Use Scenario: Real-time measurement of intake manifold absolute pressure in gasoline direct injection (GDI) and diesel common rail engines. IC Role / Device Role / Timing Role: Primary MAP sensor feeding air mass calculation to ECU; SENT output synchronized to engine crankshaft position for cycle-accurate fuel injection timing. Use Value: ±0.77% FSS accuracy enables <1% air mass error across full operating range, improving combustion efficiency and emissions compliance. |
Use Scenario: Closed-loop boost pressure regulation in variable geometry turbochargers (VGT) for light-duty and commercial vehicles. IC Role / Device Role / Timing Role: High-speed pressure feedback device interfacing with turbo actuator controller; SENT frame latency <1 ms ensures responsive closed-loop control. Use Value: 12-bit resolution and SENT's deterministic timing allow sub-5 kPa pressure setpoint precision, reducing turbo lag and improving transient response. |
| Brake Vacuum Assist Sensing | Industrial Process Pressure Monitoring |
|
Use Scenario: Detection of vacuum level in brake booster reservoirs for electric/hybrid vehicle regenerative braking coordination. IC Role / Device Role / Timing Role: Safety-critical pressure monitor providing redundant vacuum status to ADAS domain controller; AEC-Q100 Grade 0 ensures reliability at 175°C junction. Use Value: On-chip diagnostic mode validates sensor health before each braking event, meeting ASIL-B functional safety requirements without external test circuitry. |
Use Scenario: Continuous pressure monitoring in HVAC refrigerant circuits and compressed air systems for predictive maintenance. IC Role / Device Role / Timing Role: Standalone industrial pressure node with SENT-to-CAN gateway interface; NTCIN pin enables dual-parameter (pressure + ambient temp) logging. Use Value: Green PG-DSOF-8 package and −40°C to +170°C operating range support deployment in uncontrolled environments without external thermal shielding. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar absolute pressure sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPX5700AC6U | Analog output (ratiometric 0.2–4.7 V), no SENT or NTC interface; 1% FSS accuracy; requires external ADC and signal conditioning. | Lacks embedded diagnostics and digital protocol; suitable only where microcontroller resources permit analog signal processing. | Select when cost-sensitive designs already include high-resolution ADC and lack SENT-capable MCU peripherals. |
| BMP388 | I²C/SPI digital interface, 0.08 hPa RMS pressure noise, but no SENT output or NTC interface; not AEC-Q100 qualified. | Targeted at consumer drones and wearables; lacks automotive media resistance, extended temperature range, and functional safety features. | Select for non-automotive, low-noise barometric applications where SENT integration and AEC-Q100 are not required. |
Compared with MPX5700AC6U and BMP388, the KP276A1201 uniquely combines SENT protocol compliance, AEC-Q100 Grade 0 qualification, integrated NTC interface, and on-chip diagnostics - eliminating external signal chain components and enabling direct drop-in integration into automotive powertrain ECUs with minimal firmware overhead.
Availability
KP276A1201 is available at Aetrix Electronics and suitable for engine control units, turbocharger actuators, brake vacuum systems, and industrial process controllers requiring stable component supply with long-term automotive-grade lifecycle assurance.
Supply support for KP276A1201 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.
The KP276A1201 belongs to Infineon's dTurboTMAP product line - engineered specifically for high-accuracy, high-reliability manifold absolute pressure sensing in modern ICE and hybrid powertrains under harsh under-hood conditions.
FAQ
What is the SENT frame structure used by the KP276A1201?
The KP276A1201 uses SAE J2716 rev. 2016 SENT2016-03.0us-6dn-ppc(282.0)-esp-A.5 format: a 6-nibble fast channel (4 for pressure, 2 for NTC temperature) plus status nibble, with sync pulse and enhanced serial message capability. Frame period is ~2.5 ms at nominal clock tick, supporting up to 400 frames per second.
How does the KP276A1201 handle external NTC temperature compensation?
The device applies hardware-based linearization using factory-stored coefficients: Tamb = (outT − 585.2) / 8.0, where outT is the 12-bit NTC ADC result. It sources bias current to the NTC and performs ratiometric conversion, eliminating need for external reference resistors or software lookup tables.
Is the KP276A1201 compatible with standard SENT receivers in automotive ECUs?
Yes - it fully complies with SAE J2716 April 2016 revision and has been validated with industry-standard SENT receivers (e.g., NXP MPC5777M, ST SPC58ECxx). Its SENTOUT pin meets VOH ≥3.5 V and VOL ≤0.4 V specs under 4 mA load, ensuring interoperability without level-shifting.
What happens during the power-on diagnostic mode?
At power-up, the KP276A1201 automatically enters diagnostic mode for ~100 ms: it tests pressure cell capacitance stability, ADC functionality, EEPROM checksum validity, and SENT output driver integrity. If any fault is detected, it asserts specific diagnostic codes in the SENT status nibble (Diag1/Diag2 flags).
KP276A1201XTMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 8-SMD Module
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- -
- Pressure Type:
- Absolute
- Operating Pressure:
- 1.45PSI ~ 58.02PSI (10kPa ~ 400kPa)
- Output Type:
- SENT
- Output:
- 12 b
- Accuracy:
- ±0.77%
- Voltage - Supply:
- 4.5V ~ 5.5V
- Port Size:
- -
- Port Style:
- No Port
- Features:
- Temperature Compensated
- Termination Style:
- SMD (SMT) Tab
- Maximum Pressure:
- -
- Operating Temperature:
- -40°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-DSOF-8-162
KP276A1201XTMA1 FAQ
1.How can I place an order for KP276A1201XTMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for KP276A1201XTMA1 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 KP276A1201XTMA1 reliable?
The price and inventory of KP276A1201XTMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for KP276A1201XTMA1 is usually 5 days.
3.What payment methods are accepted for KP276A1201XTMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for KP276A1201XTMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for KP276A1201XTMA1?
KP276A1201XTMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your KP276A1201XTMA1 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 KP276A1201XTMA1?
For technical support, including KP276A1201XTMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your KP276A1201XTMA1 requirements.
6.How does Aetrix verify that KP276A1201XTMA1 is sourced from the original manufacturer or authorized distributors?
All KP276A1201XTMA1 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 KP276A1201XTMA1 meets industry standards.
7.What is the process for return or replacement of KP276A1201XTMA1?
All KP276A1201XTMA1 units undergo pre-shipment inspection (PSI). If there is an issue with KP276A1201XTMA1, 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 KP276A1201XTMA1 part is unused and in its original packaging.
Return procedure for KP276A1201XTMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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