MPX4250A, MPXA4250A

20 to 250 kPa, Manifold absolute pressure sensor, on-chip

signal conditioned, temperature compensated and calibrated

Rev. 8.0 — 25 July 2017

Data sheet: technical data

1 General description

The MPX4250A/MPXA4250A Manifold Absolute Pressure (MAP) sensor for engine

control is designed to sense absolute air pressure within the intake manifold. This

measurement can be used to compute the amount of fuel required for each cylinder.

The MPX4250A/MPXA4250A piezoresistive transducer is a state-of-the-art monolithic

silicon pressure sensor designed for a wide range of applications, particularly those

employing a microcontroller or microprocessor with A/D inputs. This transducer combines

advanced micromachining techniques, thin-film metallization, and bipolar processing to

provide an accurate, high-level analog output signal that is proportional to the applied

pressure. The small form factor and high reliability of on-chip integration make the NXP

sensor a logical and economical choice for the automotive system engineer.

2 Features

• 1.5 % maximum error over 0 °C to 85 °C

• Specifically designed for intake manifold absolute pressure sensing in engine control

systems

• Patented silicon shear stress strain gauge

• Temperature compensated over –40 °C to +125 °C

• Offers reduction in weight and volume compared to existing hybrid modules

• Durable epoxy unibody element or thermoplastic small outline, surface mount package

• Ideal for non-automotive applications

• Available in three small outline packages and two unibody packages

MPXA4250A6U

98ASB17756C

MPXA4250AC6U/C6T1

98ASB17757C

MPX4250A

98ASB42793B

MPX4250AP

98ASB42796B

CASE 482-01

CASE 482A-01

CASE 867-08

CASE 867B-04

Figure 1. Small outline and unibody packages

3 Typical applications

• Turbo boost engine control

• Ideally suited for microprocessor or microcontroller-based systems