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Infineon Technologies PASCO2V15AUMA1
- Part No.:
- PASCO2V15AUMA1
- Manufacturer:
- Infineon Technologies
- Category:
- Gas Sensors
- Package:
- Datasheet:
-
PASCO2V15AUMA1.pdf
- Description:
- PASCO2V15AUMA1
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
PASCO2V15AUMA1 from Infineon is a photoacoustic NDIR CO₂ sensor module delivering direct ppm readouts via integrated microcontroller compensation, with ±50 ppm ±5% accuracy (400–3,000 ppm), 5 V IR emitter supply, and 3.3 V digital interface power. It enables demand-controlled ventilation in HVAC systems by detecting real-time occupancy through CO₂ concentration thresholds.
For engineers reviewing the PASCO2V15AUMA1 datasheet, PASCO2V15AUMA1 pinout, PASCO2V15AUMA1 application, or PASCO2V15AUMA1 equivalent, key selection factors include its SMD tape-and-reel packaging for high-volume assembly, triple interface support (UART/I²C/PWM), dust resistance per ISO 20653:2013-02, and compliance with WELL™ Building Standard performance criteria.
Technical Context
The sensor implements photoacoustic detection using a proprietary MEMS microphone and pulsed 4.2 µm IR emitter, with acoustic isolation of the absorption chamber to suppress ambient noise interference. Its on-board microcontroller executes automatic baseline offset calibration (ABOC) and pressure compensation algorithms to deliver stable, maintenance-free CO₂ readings.
Interface configuration is determined by the PSEL pin state, selecting between UART, I²C, or PWM modes; INT provides asynchronous event notification, while PWM_DIS allows hardware disable of the PWM output. All digital I/O operates at 3.3 V logic levels, with separate VDD5 dedicated to the IR emitter's thermal drive circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CO₂ Range | 400–3,000 ppm - supports indoor air quality monitoring and DVC threshold triggering |
| Accuracy | ±50 ppm ±5% - meets WELL™ Building Standard requirements for occupant health validation |
| Supply Voltages | VDD5 = 5 V (IR emitter), VDD3.3 = 3.3 V (digital logic) - dual-rail operation prevents cross-coupling noise |
| Interfaces | UART / I²C / PWM - selectable via PSEL pin; enables flexible host integration without firmware rework |
| Package Dimensions | 14 × 13.8 × 7.5 mm³ - enables >75% board space reduction vs. legacy NDIR modules |
| Dust Resistance | Compliant with ISO 20653:2013-02 - ensures reliable operation in HVAC ducts and unfiltered air paths |
| Calibration | ABOC + pressure compensation - eliminates manual recalibration and altitude-related drift |
Pinout & Package
SMD package in tape-and-reel format (14 × 13.8 × 7.5 mm³), optimized for automated pick-and-place assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 VDD3.3 | Digital power supply | 3.3 V rail for MCU, communication peripherals, and signal conditioning circuitry |
| 2 Rx | UART input | Asynchronous receive line for host-to-sensor command transmission (3.3 V logic) |
| 3 SCL | I²C clock | Master-generated clock for synchronous bidirectional data exchange (3.3 V open-drain) |
| 4 Tx/SDA | UART output / I²C data | Time-multiplexed pin: UART transmit or I²C bidirectional data line (3.3 V) |
| 5 PWM_DIS | Hardware control input | Active-low enable/disable of PWM output; used for low-power sleep coordination |
| 6 GND | Reference ground | Common return path for analog sensing, digital logic, and IR emitter circuits |
| 7 INT | Interrupt output | Open-drain alert signal indicating measurement completion or alarm threshold breach |
| 8 PSEL | Interface select | Static configuration pin: sets UART/I²C/PWM mode at power-up (no runtime switching) |
| 9 PWM | CO₂ concentration output | Variable-duty-cycle pulse train encoding ppm value; no host MCU required for basic readout |
| 10 VDD5 | IR emitter supply | 5 V dedicated rail driving thermally modulated blackbody IR source at 4.2 µm |
Key Features
| Feature | Design Value |
|---|---|
| Photoacoustic NDIR detection | Eliminates optical bench and discrete photodetector, enabling 4× smaller size vs. conventional NDIR |
| On-chip ABOC algorithm | Enables zero-maintenance operation over 10+ years without field recalibration or user intervention |
| Dual-voltage architecture | Isolates high-power IR emitter (5 V) from noise-sensitive analog/digital circuitry (3.3 V), improving SNR |
| Triple-interface flexibility | Reduces BOM count: single sensor SKU supports UART diagnostics, I²C system integration, or PWM-only edge nodes |
| ISO 20653 dust resistance | Validated ingress protection allows direct mounting in HVAC air streams without external filtration housings |
Applications
| Smart Thermostats | Air Quality Monitors |
|---|---|
Use Scenario: Residential HVAC control unit measuring room-level CO₂ to modulate fan speed and outdoor air intake. IC Role / Device Role / Timing Role: Primary environmental sensing element providing occupancy-derived ventilation demand signal. Use Value: Enables 30–50% energy savings via demand-controlled ventilation while maintaining <1,000 ppm CO₂ thresholds per ASHRAE 62.1. | Use Scenario: Portable handheld or wall-mounted device displaying real-time CO₂, temperature, and humidity metrics. IC Role / Device Role / Timing Role: Core gas sensing subsystem delivering calibrated ppm output via UART to application MCU. Use Value: Delivers WELL™-compliant accuracy without factory calibration fixtures or lab-grade reference gases. |
| Smart Air Purifiers | Commercial Building BMS |
Use Scenario: Compact consumer appliance adjusting filtration intensity and fan RPM based on detected CO₂ buildup. IC Role / Device Role / Timing Role: Low-power CO₂ trigger for adaptive duty cycling; PWM output directly drives fan controller IC. Use Value: Extends battery life in cordless models via early measurement notification and configurable sample rate (1–10 min intervals). | Use Scenario: Centralized building management system aggregating CO₂ data from multiple zones for zone-by-zone ventilation optimization. IC Role / Device Role / Timing Role: Distributed sensing node interfacing via I²C to local gateway MCU with RS-485 uplink. Use Value: Reduces wiring complexity and panel space via SMD footprint and tape-and-reel manufacturability across 100+ sensor deployments. |
Availability
PASCO2V15AUMA1 is available at Aetrix Electronics and suitable for HVAC control systems, smart home air quality devices, commercial building automation, and portable environmental monitors requiring stable component supply and long-term calibration stability.
Supply support for PASCO2V15AUMA1 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 AG is a German semiconductor manufacturer specializing in power management, sensors, and automotive ICs, with global R&D centers and ISO/TS 16949-certified manufacturing.
The XENSIV™ PAS CO₂ product line targets indoor air quality sensing, combining Infineon's MEMS microphone, IR emitter, and signal processing IP to replace bulky, costly NDIR solutions with miniaturized, self-calibrating modules.
FAQ
What interface options does PASCO2V15AUMA1 support, and how are they selected?
It supports UART, I²C, and PWM outputs. Interface mode is fixed at power-up via the PSEL pin: grounded for UART, pulled high for I²C, and floating for PWM. No software reconfiguration is possible after boot, ensuring deterministic startup behavior in safety-critical HVAC applications.
How does the sensor achieve long-term stability without manual recalibration?
It uses on-chip Automatic Baseline Offset Calibration (ABOC), which analyzes multi-day CO₂ minima to adjust zero-point drift. Combined with pressure compensation and factory-trimmed MEMS microphone sensitivity, this delivers ±50 ppm ±5% accuracy over 10 years without field service.
Can PASCO2V15AUMA1 operate in dusty or high-particulate environments?
Yes. It complies with ISO 20653:2013-02 for dust resistance, validated under accelerated particulate exposure. The sealed absorption chamber and acoustic isolation prevent contamination of the MEMS microphone diaphragm and optical path, enabling direct installation in HVAC ducts.
What is the role of the separate VDD5 and VDD3.3 supplies?
VDD5 powers the pulsed IR emitter (blackbody source), delivering peak current for 4.2 µm wavelength generation. VDD3.3 powers the microcontroller, MEMS microphone, and digital interfaces. This separation prevents emitter-induced noise from degrading analog signal integrity or digital timing margins.
PASCO2V15AUMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- XENSIV™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Carbon Dioxide (CO2)
- Oxygen Range:
- 0 mbar ~ 800 bar
- Accuracy:
- ±5%
- Output:
- I2C, PWM, UART
- Operating Temperature:
- 0°C ~ 50°C
- Voltage - Supply:
- 4.45V ~ 5.5V
- Current - Supply:
- -
PASCO2V15AUMA1 FAQ
1.How can I place an order for PASCO2V15AUMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for PASCO2V15AUMA1 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 PASCO2V15AUMA1 reliable?
The price and inventory of PASCO2V15AUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PASCO2V15AUMA1 is usually 5 days.
3.What payment methods are accepted for PASCO2V15AUMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PASCO2V15AUMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PASCO2V15AUMA1?
PASCO2V15AUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PASCO2V15AUMA1 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 PASCO2V15AUMA1?
For technical support, including PASCO2V15AUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PASCO2V15AUMA1 requirements.
6.How does Aetrix verify that PASCO2V15AUMA1 is sourced from the original manufacturer or authorized distributors?
All PASCO2V15AUMA1 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 PASCO2V15AUMA1 meets industry standards.
7.What is the process for return or replacement of PASCO2V15AUMA1?
All PASCO2V15AUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with PASCO2V15AUMA1, 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 PASCO2V15AUMA1 part is unused and in its original packaging.
Return procedure for PASCO2V15AUMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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