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
CASE 482-01
MPXA4250AC6U/C6T1
98ASB17757C
MPX4250A
98ASB42793B
CASE 867-08
MPX4250AP
98ASB42796B
CASE 867B-04
CASE 482A-01
Figure 1.ꢀSmall outline and unibody packages
3 Typical applications
• Turbo boost engine control
• Ideally suited for microprocessor or microcontroller-based systems