NXP Semiconductors MPL3150A2T1

Overview

MPL3150A2T1 from NXP Semiconductors is an I²C digital absolute pressure sensor with integrated temperature compensation, 20-bit pressure (Pa) and 12-bit temperature (°C) outputs, ±0.4 kPa absolute accuracy over 70–150 kPa at −10 °C to 70 °C, and autonomous FIFO-based data logging for barometric applications in portable electronics.

For engineers reviewing the MPL3150A2T1 datasheet, MPL3150A2T1 pinout, MPL3150A2T1 application, or MPL3150A2T1 equivalent, key selection criteria include its 50–150 kPa operating range, 1.95–3.6 V supply, 8-pin LGA package, programmable interrupts (INT1/INT2), and embedded 32-sample FIFO supporting up to 12 days of autonomous logging.

Technical Context

The MPL3150A2T1 integrates a piezoresistive MEMS pressure sensor with on-chip temperature sensing and a high-resolution ADC, enabling fully compensated digital output without MCU-side compensation. Its ASIC implements configurable acquisition modes-including one-shot, FIFO-triggered, and interrupt-driven cycles-with oversampling ratios (1× to 128×) that trade resolution (0.25 Pa min), noise (1.5 Pa RMS at 128×), and current (40 µA typ. per measurement-second).

It operates in three power states: OFF (VDD < 1.62 V), STANDBY (digital blocks active, analog off), and ACTIVE (full functionality). Communication uses standard/fast-mode I²C at 400 kHz (or 4 MHz with 20 pF bus load) with fixed 7-bit address 0x62, and supports dual programmable interrupts routed to INT1/INT2 with push-pull or open-drain configuration.

Key Specifications

Pinout & Package

Package: 8-pin LGA (5 mm × 3 mm × 1.1 mm, RoHS compliant), surface-mount with exposed cavity for pressure port access.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar absolute pressure sensing applications.

Compared with BMP388 and MS5637, the MPL3150A2T1 uniquely balances barometric-grade accuracy (±0.4 kPa), embedded FIFO logging, dual programmable interrupts, and ultra-low active current (40 µA/measurement) in a compact 5×3 mm LGA-making it optimal for battery-powered portable altimeters requiring autonomous operation and minimal host intervention.

Availability

MPL3150A2T1 is available at Aetrix Electronics and suitable for high-accuracy barometry, GPS enhancement, and weather station equipment requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for MPL3150A2T1 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

NXP Semiconductors is a global semiconductor company specializing in secure connectivity solutions for automotive, industrial, and consumer applications, with leadership in sensor signal processing and embedded interface IP.

The MPL3150A2T1 belongs to NXP's precision MEMS pressure sensor product line, designed specifically for low-power, high-accuracy barometric and altimetric applications in space-constrained portable electronics.

FAQ

What is the calibrated pressure range of the MPL3150A2T1?

The MPL3150A2T1 has a calibrated pressure range of 70 kPa to 150 kPa absolute, within which it guarantees ±0.4 kPa absolute accuracy over −10 °C to 70 °C. Its operational range extends from 50 kPa to 150 kPa, allowing use at higher altitudes or in low-pressure environments. Factory calibration trims are stored in on-chip NVM, and the MPL3150A2T1 supports user override of offset registers to compensate for mounting-induced stress.

How does the MPL3150A2T1 handle temperature compensation?

The MPL3150A2T1 integrates an on-die temperature sensor and performs full digital compensation internally using factory-trimmed coefficients. It outputs both pressure (20-bit, in Pascals) and temperature (12-bit, in °C) as fully compensated, direct-read values-eliminating the need for host MCU computation. Temperature accuracy is ±1 °C at 25 °C and ±3 °C across −40 °C to +85 °C, and this data feeds the pressure compensation algorithm in real time.

Can the MPL3150A2T1 operate autonomously without host intervention?

Yes, the MPL3150A2T1 supports fully autonomous operation via its embedded 32-sample FIFO and programmable acquisition scheduler. Users can configure measurement intervals from 1 second to 9 hours, enabling up to 12 days of unattended logging. Interrupts (INT1/INT2) signal FIFO watermark, data-ready, or threshold events-allowing the host MCU to remain in low-power sleep until actionable data is available.

What are the I²C electrical requirements for the MPL3150A2T1?

The MPL3150A2T1 uses standard/fast-mode I²C with a fixed 7-bit address of 0x62 (0xC4 write / 0xC5 read). SCL supports up to 400 kHz (standard) or 4 MHz (fast-mode with ≤20 pF bus load). SDL and SCL require external pull-ups to VDDIO (1.62–3.6 V). Input thresholds are VIH ≥ 0.75×VDDIO and VIL ≤ 0.3×VDDIO; VOL ≤ 0.1×VDDIO at 500 µA sink for INT1/INT2.

Is the MPL3150A2T1 pin-compatible with earlier NXP pressure sensors like the MPL3115A2?

No, the MPL3150A2T1 is not pin-compatible with the MPL3115A2. While both are 8-pin LGA pressure sensors from NXP, the pin assignments differ: MPL3150A2T1 assigns VDD to pin 1, CAP to pin 2, GND to pin 3, and VDDIO to pin 4, whereas MPL3115A2 uses different pin functions and ordering. Board redesign is required for replacement; refer to the respective datasheets for mechanical and electrical layout validation before migration.