NXP Semiconductors MPXV6115V6T1

Overview

MPXV6115V6T1 from Freescale Semiconductor is a monolithic, signal-conditioned, piezoresistive silicon pressure sensor with gauge vacuum range of –115 to 0 kPa, ratiometric 5 V supply operation, ±1.5% full-scale accuracy over 0–85 °C, and integrated on-chip temperature compensation. It serves as an analog pressure transducer in brake booster and vacuum pump monitoring systems.

For engineers reviewing the MPXV6115V6T1 datasheet, MPXV6115V6T1 pinout, MPXV6115V6T1 application, or MPXV6115V6T1 equivalent, key selection criteria include its vacuum-rated pressure range, SOP-8 thermoplastic package, 4.6 V full-scale output at 5 V supply, 38.26 mV/kPa sensitivity, and compatibility with microcontroller ADC interfaces without external signal conditioning.

Technical Context

The MPXV6115V6T1 integrates a micromachined silicon diaphragm with thin-film resistor networks and bipolar op-amp circuitry to deliver a high-level analog output proportional to applied vacuum pressure. Its transfer function is defined as VOUT = VS × (0.007652 × P + 0.92), where P is pressure in kPa and VS is supply voltage.

On-chip temperature compensation operates across –40 to +125 °C, with error bands bounded by ±1.725 kPa pressure error and ±1.5% VFSS accuracy over 0–85 °C. The device uses fluorosilicone gel isolation for environmental protection while maintaining pressure transmission to the sensing element.

Key Specifications

Pinout & Package

MPXV6115V6T1 is housed in a surface-mount small outline package (Case 98ASB17756C), 12.7 mm × 10.79 mm × 3.17 mm, with gull-wing leads and notch/chamfer pin 1 identification.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MPXV7007DP and SPX3015, the MPXV6115V6T1 uniquely combines –115 kPa vacuum range, 5 V ratiometric analog output, and full on-chip temperature compensation-making it the only drop-in solution for automotive brake vacuum monitoring without redesigning signal conditioning or supply architecture.

Availability

MPXV6115V6T1 is available at Aetrix Electronics and suitable for brake booster monitoring, vacuum pump control, and engine intake manifold sensing requiring stable component supply across automotive production lifecycles.

Supply support for MPXV6115V6T1 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

Freescale Semiconductor (now part of NXP Semiconductors) is a global leader in automotive and industrial microcontrollers, sensors, and analog ICs, with deep expertise in embedded system reliability and AEC-Q100 qualification.

The MPXV6115V6T1 belongs to Freescale's MPXV series of monolithic silicon pressure sensors, engineered specifically for high-accuracy, high-reliability vacuum measurement in automotive safety-critical subsystems.

FAQ

What is the pressure range specification for the MPXV6115V6T1?

The MPXV6115V6T1 has a gauge pressure range of –115 to 0 kPa, meaning it measures vacuum relative to atmospheric pressure. This range is optimized for applications such as brake booster vacuum monitoring and engine intake manifold sensing. The device outputs a ratiometric analog voltage from ~0.5 V at 0 kPa to ~4.6 V at –115 kPa when supplied with 5 V. Full-scale span is 4.4 V, and the sensor is calibrated for this exact range.

Does the MPXV6115V6T1 require external temperature compensation?

No, the MPXV6115V6T1 features fully integrated on-chip temperature compensation across –40 to +125 °C. Its accuracy specification of ±1.5% VFSS over 0–85 °C includes all temperature-induced errors-linearity, hysteresis, and TcOffset-without requiring external thermistors, lookup tables, or firmware correction. This makes MPXV6115V6T1 suitable for under-hood automotive use without additional thermal management.

What is the correct pinout and connection method for the MPXV6115V6T1?

The MPXV6115V6T1 uses an 8-pin SOP package (Case 98ASB17756C) with pin 1 identified by a notch or chamfer. Only pins 2 (VS), 3 (GND), and 4 (VOUT) are functional; pins 1 and 5–8 are DNC (do not connect). VS must be decoupled with a 1 μF capacitor close to the pin, and VOUT connects directly to an ADC input. Floating DNC pins must remain unconnected to prevent performance degradation or calibration shift.

Can the MPXV6115V6T1 be used with a 3.3 V supply?

No-the MPXV6115V6T1 is specified for 4.75–5.25 VDC operation only. Its internal circuitry, including the bipolar op-amp and thin-film resistor network, is designed for 5 V excitation. Supplying 3.3 V will result in insufficient biasing, reduced output swing (<3 V full-scale), and violation of operating specifications. For 3.3 V systems, consider alternative sensors like the SPX3015-but note that MPXV6115V6T1 is not compatible.

Is the MPXV6115V6T1 qualified for automotive applications?

Yes-the MPXV6115V6T1 is designed and qualified for automotive use, with operating temperature range –40 to +125 °C, AEC-Q200 stress testing compliance (implied by Freescale's automotive product lineage), and robust construction including fluorosilicone gel isolation. It is widely deployed in brake booster and vacuum pump monitoring systems meeting ISO 26262 functional safety requirements when integrated into properly validated ECU designs.