The Motorola MPX4100A/MPXA4100A series Manifold Absolute Pressure (MAP) sensor is designed for engine control and 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 small form factor and high reliability of on–chip integration makes the Motorola MAP sensor a logical and economical choice for automotive system designers.
The MPX4100A/MPXA4100A series is a manifold absolute pressure (MAP) sensor designed for engine control applications. It provides a high‑accuracy analog output proportional to absolute air pressure in the intake manifold, making it suitable for automotive and microcontroller‑based systems.
The device operates over a pressure range of 15 kPa to 115 kPa, with a supply voltage of 5.1 Vdc and an output swing of 0.2 V to 4.8 V. It features a temperature‑compensated range of –40 °C to +125 °C, an accuracy of ±1.8 % of full‑scale span, and a sensitivity of 54 mV/kPa. Mechanical options include unibody (case 867) and small‑outline (case 482) packages.
| Pressure range | 15 to 115 kPa (2.2 to 16.7 psi) |
|---|---|
| Output voltage | 0.2 to 4.8 V |
| Temperature range | –40 °C to +125 °C |
The sensor measures pressures from 15 kPa to 115 kPa (2.2 psi to 16.7 psi).
Use the recommended decoupling circuit and follow the specified footprint for the chosen package (unibody or small‑outline).